US20040235319A1 - Telecommunications device - Google Patents
Telecommunications device Download PDFInfo
- Publication number
- US20040235319A1 US20040235319A1 US10/095,328 US9532802A US2004235319A1 US 20040235319 A1 US20040235319 A1 US 20040235319A1 US 9532802 A US9532802 A US 9532802A US 2004235319 A1 US2004235319 A1 US 2004235319A1
- Authority
- US
- United States
- Prior art keywords
- wired board
- back wired
- sub
- connectors
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/02—Constructional details
- H04Q1/10—Exchange station construction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1438—Back panels or connecting means therefor; Terminals; Coding means to avoid wrong insertion
- H05K7/1458—Active back panels; Back panels with filtering means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/16—Connectors or connections adapted for particular applications for telephony
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2201/00—Constructional details of selecting arrangements
- H04Q2201/12—Printed circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S439/00—Electrical connectors
- Y10S439/908—Contact having two contact surfaces for electrical connection on opposite sides of insulative body
Definitions
- the present invention relates to a shelf-type telecommunications device.
- FIG. 1 is a schematic structural diagram of a conventional telecommunications device 10 .
- the telecommunications device 10 has a shelf structure. To the back of the shelf unit 11 are fixedly mounted a main back wired board 12 and a sub back wired board 13 . Additionally, a back cover 14 is attached. Within the shelf unit 11 a plug-in unit 15 is inserted and installed. An external cable 21 is connected to the back of the telecommunications device 10 .
- the separation of the back wired board into a main back wired board 12 and a sub back wired board 13 exists because the electrical connection between the plug-in unit 15 and the external cable 21 is separated into the electrical connection of the plug-in unit 15 and the electrical connection of the external cable 21 . That is, the function of electrically connecting the plug-in unit is assumed by the main back wired board 12 and the function of electrically connecting the external cable 21 is assumed by the sub back wired board 13 .
- the plug-in unit 15 is connected to the plug-in unit connector 16 on the front of the main back wired board 12 .
- the external cable 21 is connected to connector 17 on the sub back wired board 13 via an opening 14 a in the back cover 14 .
- an electrical connection between the main back wired board 12 and the sub back wired board 13 is effected by a coaxial cable 18 .
- effecting the electrical connection between the main back wired board 12 and the sub back wired board 13 by using a coaxial cable requires space for connecting the ends of each and every coaxial cable 18 .
- FIG. 3 shows rear and side rear views of a conventional telecommunications device 10 for integrating a variety of different functions.
- the electrical connection between the main back wired board 12 A and the sub back wired board 13 A is effected by a coaxial cable 18 A.
- the number of coaxial cables approaches 1,000, with corresponding space required for connecting the ends of each of the coaxial cables.
- the height H1 of the device 10 increases substantially to approximately 16 U, 1 “U” being a standardized unit for measuring shelf height and equal to approximately 1.75 inches.
- the size of the space 20 required for bending and accommodating the coaxial cables 18 A also increases and, accordingly, the spacing a1 between the sub back wired board 13 A and the main back wired board 12 A must be enlarged to approximately 30 mm. As a result, the depth of the device 10 A also increases to a size A1.
- a telecommunications device comprising:
- a main back wired board fixedly mounted to a back of the shelf unit
- a plurality of connectors for plug-in units mounted on an inner surface of the main back wired board so as to be connected to the plug-in units inserted into the shelf unit;
- a plurality of relay connectors mounted on a surface of the main back wired board, the surface opposing the sub back wired board, and electrically connected to the plurality of connectors for plug-in units;
- a plurality of relay connectors mounted on a surface of the sub back wired board, the surface opposing the main back wired board, the plurality of relay connectors being electrically connected to the plurality of connectors for external cables,
- a telecommunications device comprising:
- a main back wired board fixedly mounted on a back of the shelf unit
- pin terminals are pressed into and projected through the main back wired board toward the sub back wired board, and tip portions of the pin terminals are pressed into the sub back wire board, and the main back wired board and the sub back wired board are electrically connected to each other.
- a telecommunications device comprising:
- a main back wired board fixedly mounted to a back of the shelf unit
- a plurality of connectors for plug-in units mounted on an inner surface of the main back wired board so as to be connected to the plug-in units inserted into the shelf unit;
- a plurality of relay connectors mounted on a surface of the sub back wired board, the surface opposing the main back wired board, the plurality of relay connectors being electrically connected to the plurality of connectors for external cables,
- tip portions of the plurality of plug-in unit connector pin terminals are connected to the plurality of relay connectors on the sub back wired board, and the main back wired board and the sub back wired board are electrically connected to each other.
- FIG. 1 is a schematic structural diagram of a conventional telecommunications device
- FIG. 2 is a planar view of a portion of the telecommunications device depicted in FIG. 1;
- FIG. 3 shows rear and side rear views of a conventional telecommunications device for integrating a variety of different functions
- FIG. 4 is a diagram of a first embodiment of a telecommunications device for integrating different functions according to the present invention
- FIG. 5 is a block diagram of the telecommunications device depicted in FIG. 4;
- FIG. 6 is a diagram of the telecommunications device depicted in FIG. 4;
- FIG. 7 is a detailed diagram of the side view of the telecommunications device depicted in FIG. 6;
- FIG. 8 shows a rear side view of the telecommunications device depicted in FIG. 4 in a state of installation in a rack;
- FIG. 9 shows an exploded view of the telecommunications device in FIG. 4.
- FIG. 10 is an exploded rear view of the telecommunications device depicted in FIG. 4;
- FIG. 11 is a diagram depicting the fixed mounting of a relay connector of the main back wired board
- FIG. 12 is a diagram of the electrical connection between the main back wired board and the sub back wired board
- FIG. 13 is a diagram showing the connection of the plug-in unit to the back wired board
- FIG. 14 is a diagram for explaining the electrical connection from the plug-in unit to the external cable
- FIG. 15 is a diagram for explaining a method for assembling the back wired board assembly
- FIG. 16 is a diagram for explaining a provisional mounting of the relay connector to the sub back wired board
- FIG. 17 is a diagram for explaining the interconnection of relay connectors on the back wired board
- FIG. 18 is a diagram of a second example of a provisional mounting of a relay connector on the sub back wired board
- FIG. 19 is a diagram of a third example of a provisional mounting of a relay connector on the sub back wired board
- FIG. 20 is a diagram of a second example of a back wired board assembly
- FIG. 21 is an oblique exploded view of the back wired board assembly depicted in FIG. 20;
- FIG. 22 is a diagram of a third example of a back wired board assembly
- FIG. 23 is a diagram for explaining a method for assembling a third example of the back wired board assembly
- FIG. 24 is a diagram of the relay connector depicted in FIG. 23;
- FIG. 25 is a diagram of a fourth example of the back wired board assembly, including an expanded cross-sectional view thereof;
- FIG. 26 is an expanded and exploded view of a portion of the back wired board assembly depicted in FIG. 25;
- FIG. 27 is an oblique view of a spacer
- FIG. 28 is a diagram for explaining a method of assembling the back wired board assembly depicted in FIG. 25;
- FIG. 29 is a diagram of parts of steps (B) and (C) of FIG. 28;
- FIG. 30 is a diagram showing a method of assembling the back wired board assembly depicted in FIG. 25;
- FIG. 31 is a diagram of a fifth example of a back wired board assembly.
- FIG. 32 is a diagram of a sixth example of a back wired board assembly.
- FIG. 4 through FIG. 10 are diagrams of a first embodiment of a telecommunications device 50 integrating different functions according to the present invention.
- the telecommunications device 50 is one in which such functions as a data interface, ATM switch, etc., have been added to the SONET MUX and, as shown in FIG. 5, comprises a circuit configuration comprising transport complex 71 , service complex 72 , switching complex 73 , synchronization complex 74 and management complex 75 .
- the transport complex 71 has a LINE terminal function
- the service complex 72 has a TRIB terminal function.
- the switching complex 73 has a traffic connection function between LINE and TRIB in the STS/VT/ATM cell unit.
- the management complex 75 has a surveillance and quality control/performance evaluation function.
- the telecommunications device 50 is one that has structured this circuit configuration and, as shown in FIG. 4 and FIG. 9, is of a shelf-type construction.
- a main back wired board 52 and a sub back wired board 53 are fixedly mounted and, further, a back cover 54 is attached.
- a plurality of plug-in units 55 are inserted from the front of the shelf unit toward the rear of the shelf unit, and attached at the rear to client interface external cable 56 .
- An air filter 57 is provided at the front side of the shelf unit 51 so as to cover the plug-in unit 55 .
- a front cover 58 is provided.
- a plurality of fan units 59 are mounted on the top surface of the shelf unit 51 .
- the X axis represents width
- the Y axis represents depth
- the Z axis represents height
- a plurality of plug-in units 55 are connected to the plug-in unit connectors 60 on the front of the main back wired board 52 and are arranged side by side horizontally and, as shown in FIG. 4, form complexes 71 - 75 .
- the back wired board is divided into a main back wired board 52 and a sub back wired board 53 .
- the main back wired board 52 serves the function of providing a place to which the plug-in unit 55 is electrically connected.
- the sub-back wired board 53 serves the function of providing a place to which the client interface external cable 56 is connected.
- the DS3 interface connector group 80 comprises a group of connectors 80 a including an upper section of 18 connectors and a central section of 18 connectors arranged at an even pitch along the horizontal X axis.
- the DS1 interface connector group 81 comprises a group of connectors 81 a including 6 upper connectors and 6 lower connectors arranged horizontally.
- the LAN interface connector group 82 consists of a group of connectors 82 a including 24 centrally positioned connectors arranged at an even pitch along the horizontal X axis.
- the main back wired board 52 and the sub back wired board 53 are connected by relay connectors without the use of cables. Accordingly, the main back wired board 52 and the sub back wired board 53 are connected by relay connectors and thus form the back wired board assembly 90 . According to this construction, space on the main back wired board 52 and sub back wired board 53 for connecting the cables is no longer necessary. Accordingly, although the addition of functions such as data interfaces, ATM switches, etc., to the SONET MUX increases the number of electrical connections between the main back wired board 52 and the sub back wired board 53 by 1,000 or more, nevertheless the size of the main back wired board 52 and the sub back wired board 53 does not substantially increase.
- the telecommunications device 50 of the present embodiment requires a height of no more than 10 U, a full 6 U shorter than the height of the main back wired board and sub back wired board when connected by cables according to the conventional art. Accordingly, such a reduction in the height of the telecommunications device 50 , as shown in FIG. 8, makes it possible to install three such devices in the 7-foot rack that is standard in North America.
- the width a2 of the space 63 between the sub back wired board 53 and the main back wired board 52 can be reduced by nearly half, from the conventional 30 mm to 17 mm. Accordingly, the telecommunications device 50 can be made more compact and, as a result, a passageway for an operator between devices positioned so that the backs of the devices face each other may be widened.
- the relay connector device 91 comprises a plug-in unit connector 60 on the side toward the Y2 direction and a relay connector 92 on the side toward the Y1 direction, as shown in FIG. 10.
- a metric connector 93 like that shown in FIG. 11(A) is prepared.
- the metric connector 93 has a shroud 93 a and a longer-than-usual pin terminal 93 b that pierces the shroud 93 a .
- the pin terminal 93 b has a press-fit portion 93 bl at approximately a central position of the pin terminal 93 b.
- the pin 93 b of the metric connector 93 is inserted into and through an aperture 52 a in the main back wired board 52 and the press-fit portion 93 bl is pressed into the aperture 52 a so as to occupy the interior of the aperture 52 a .
- the metric connector 93 is firmly fixedly mounted on the main back wired board.
- a sorting plate 94 is fitted to the pins of the pin terminal 93 b that project horizontally from the surface of the main back wired board 52 so as to sort the pins of the pin terminal 93 b into predetermined rows.
- a shroud 95 is fitted to the pin terminal 93 b and pressed against the pin terminal 93 b . Since the pins of the pin terminal 93 b have been sorted by the sorting plate 94 , the shroud is securely fitted to the entire pin terminal 93 b .
- the pins of the pin terminal 93 b project into the interior of the shroud 95 , the sorting plate 94 is advanced against the surface of the main back wired board 52 , the holes 95 a of the shroud 95 is pressed against an opposing finger-like projecting portion 94 a projecting from the sorting plate 94 , the projecting finger-like portion 94 a clamps the pin terminal 93 b , thus fixedly mounting the shroud 95 .
- the shroud 93 a of the plug-in unit connector 60 and the shroud 95 of the relay connector 92 are shown oriented in the same direction.
- the plug-in unit connector 60 has the shroud in a vertical Z-axis position while that relay connector 92 has the shroud in a front-to-back X-axis position, that is, perpendicular to the horizontal Y axis position.
- the relay connector 92 has the shroud positioned along the X axis because it is matched with the relay connector 96 on the surface of the rear Y1 side of the sub back wired board 53 .
- an relay connector 96 is mounted on the surface of the Y1 side of the sub back wired board 53 .
- the relay connector 96 opposes the previously mentioned relay connector 92 and is so disposed that a longer side thereof is positioned along the horizontal X axis in tandem with the DS3 interface connector group 80 , with 8 connectors disposed each in two parallel upper and lower rows.
- Each relay connector 96 is electrically connected to each connector 80 a , 81 a and 82 a via the wire pattern in the sub back wired board 53 .
- the plug-in unit 55 involves fitting the tip of the connector 97 in the direction of the insertion into the plug-in unit connector 60 , connecting and then loading.
- the loaded plug-in unit 55 and the client interface external cable 56 are electrically connected by the plug-in unit connector 60 being connected to the relay connector 92 , which is connected to the relay connector 96 , which is connected to the sub back wired board 53 which is connected to the connector 80 a ( 81 a , 82 a ).
- the relay connector 96 is provisionally affixed to the sub back wired board 53 .
- the pin terminals 98 of the relay connector 96 have a press-fit portion 98 a that is substantially a FIG. 8 in cross section.
- a through hole 53 a for soldering is formed on the sub back wired board 53 .
- a press-fit through hole 100 for press-fitting the press-fit portion 98 a has a diameter d2 of 0.6 mm.
- the solder through hole 53 a has a diameter d1 of 0.85 mm, which is larger than the diameter of the press-fit through hole diameter d2 so as to accommodate the press-fit portion 98 a without causing elastic deformation of the press-fit portion 98 a.
- the pin connector 98 of the relay connector 96 is inserted into the solder through hole 53 a in the sub back wired board 53 .
- the press-fit portion 98 a is thus in a state of lightly contacting the inner surface of the solder through hole 53 a , in such a way that the relay connector 96 does not come loose and fall out even when the sub back wired board 53 is positioned horizontally with the relay connector 96 facing downward.
- adequate space 101 is left between the press-fit portion 98 a and the solder through hole 53 a so that the pin terminal 98 can be twisted laterally substantially within the solder through hole 53 a at respective angles ⁇ (approximately 10 degrees) with respect to a hypothetical vertical line along the vertical Z axis.
- the relay connector 96 is provisionally mounted on the sub back wired board 53 in a state in which it can be freely twisted within a range of angle ⁇ , that is, several degrees, with respect to a hypothetical vertical line along the vertical Z axis.
- assembly of the back wired board assembly 90 involves fitting guide holes on the main back wired board 52 to guide pins 111 and setting the main back wired board 52 onto a press jig 110 .
- a sorting plate 112 is fitted lightly onto all the relay connectors 92 .
- a plurality of holes 113 in the sorting plate 112 having tapered openings straightens the pins 93 b of the relay connector 92 into perfect rows.
- By fitting the sorter plate 112 lightly onto the relay connector any bent pins are straightened and all the pins 93 b are sorted into positions within +0.05 mm of predetermined perfect rows.
- an assembler holds the sub back wired board 53 provisionally mounting the relay connector 96 so that the relay connectors 96 face downward, fits the guide holes to the guide pins 111 and gently lowers the sub back wired board 53 onto the main back wired board 52 as shown in FIG. 15(C). All the relay connectors 96 are thus in a state of being fitted to the openings of the corresponding relay connectors 92 .
- the press jig 114 is set atop the sub back wired board 53 , a press (not shown in the drawing) is set atop the press jig 114 , a pressure P is applied to the press and all 24 of the relay connectors 96 are at once fitted to their corresponding relay connectors 92 .
- the relay connectors 96 press upon the sorter plate 112 and are fitted to the relay connectors 92 .
- the depth of the fitting of the relay connectors 96 to the relay connectors 92 is reduced by an amount equal to the thickness of the sorter plate 112 .
- the thickness of the sorter plate 112 is merely 1 mm, so the contacts 98 b are fully connected to the pins 93 b despite the presence of the sort plate 112 .
- each relay connector 96 With the relay connector 96 in a substantially loose state, each relay connector 96 is loosened appropriately so as to accommodate an opposite relay connector 92 and is fitted to a shroud 95 . That is, any misalignment between corresponding relay connectors 96 and relay connectors 92 is absorbed and, accordingly, all 24 relay connectors 96 are together fitted normally to corresponding relay connectors 92 .
- the relay connector 96 is matched to the shroud, even relay connectors 96 that are badly misaligned with respect to their corresponding relay connectors 92 do not exert an excessive force on the shroud 95 and hence the shroud 95 does not crack.
- the sorting plate 112 aligns all the pins 93 b into predetermined perfect rows within a range of error of +0.05 mm, and thus there is no danger of even one pin being bent and so failing to be connected.
- all of the approximately 1,800 pins 93 b are inserted, with a relatively high degree of reliability, into the holes in the relay connector 96 , and, accordingly, are normally and with a high degree of reliability connected to the contact 98 b of the tips of the pin terminal 98 .
- the pin terminal 98 of the relay connector 96 is soldered to the solder through hole 53 a of the sub back wired board 53 .
- the soldering is shown as 116 in FIG. 15(E).
- FIG. 18 shows a second example, in which the pin terminal 98 of the relay connector 96 is inserted into and through the solder through hole 53 a 1 in the sub back wired board 53 and the tip of the pin terminal 98 covered with an adhesive tape 120 and the tape attached to a top surface of the sub back wired board 53 so as to provisionally mount the pin terminal 98 to the sub back wired board 53 via the solder through hole 53 a 1 .
- the provisional mounting of the pin terminal 98 is achieved by the use of adhesive tape 120 , so the solder through hole 53 a 1 is slightly larger than the solder through hole 53 a used for provisional mounting using friction as shown in FIG. 16, having a diameter of 1 mm.
- the pin terminal 98 can be twisted to the left and right around the vertical Z axis at an angle ⁇ 1 of up to approximately 20 degrees, that is, greater than that described above. Accordingly, the relay connector 96 can be freely twisted around the vertical Z axis at an angle ⁇ 1 greater than that for the previous composition, that is, approximately 10 degrees, and thereby provisionally mounted on the sub back wired board 53 .
- FIG. 19 shows a third example.
- a sheet 121 having a plurality of holes 121 a having an arrangement identical to the arrangement of the pin terminals 98 is used.
- Sheet 121 is fitted to the sub back wired board 53 in such a way that the plurality of holes 121 a in the sheet 121 are fitted to the tips of the pin terminals 98 inserted into and through the solder through holes 53 a 1 of the sub back wired board 53 and attached in such a way as to avoid easy loosening and detachment from the sub back wired board 53 .
- FIG. 20 shows a second variation of a back wired board assembly 90 A, which, as is shown in FIG. 21, provides on the main back wired board 52 an relay connector 92 A having 24 individual connectors arranged as a single unit in one flat plane.
- a similarly large relay connector 96 A having 24 individual connectors arranged as a single unit in one flat plane is provided on the sub back wired board 53 .
- Relay connector 92 A and relay connector 96 A are connected to each other.
- Relay connector 92 A comprises a large sorting plate 94 A that itself combines 24 individual sorter plates 94 and a shroud 95 A corresponding in size to the sorting plate 94 A.
- the relay connector 96 A of the sub back wired board 53 is fitted to the relay connector 92 A using a press to fit a large sorting plate 112 A that itself combines 24 individual sorting plates 112 onto the tips of the pins 93 b so as to straighten the pins 93 b.
- relay connector 92 A there is one relay connector 92 A and one relay connector 96 A.
- all the pins 93 b of relay connector 92 A correspond to all the holes in relay connector 96 A, and thus relay connector 96 A and relay connector 92 A fit together smoothly.
- FIG. 22 shows a third example of a back wired board assembly 90 B.
- the back wired board assembly 90 B comprises the main back wired board 52 , the sub back wired board 53 , relay connector 92 connected to relay connector 96 B, and the whole fixedly mounted by screws tightened in spacing bolts 115 .
- the lack of a sorter plate 112 arises from the method of assembly, which precludes the need for such sorter plate 112 .
- the back wired board assembly 90 B as shown in FIG. 23(A) comprises a main back wired board 52 that is connector device 90 , the guide holes of which are fitted to the guide pins 111 and set on the press jig 110 .
- the relay connectors 96 B depicted in FIG. 24 are one by one fitted to relay connectors 92 . No sorter plate is used, and the pin terminals 98 B are positioned so as to face up.
- the assembler holds the sub back wired board 53 in both hands, fits the guide holes to the guide pins 111 , gently lowers the sub back wired board 53 so as to fit the solder through holes 53 a 2 to the corresponding pin terminals 98 B.
- the solder through holes 53 a 2 have a large diameter and the pin terminals 98 B have pointed tips 98 Ba so as to ease the fitting of the individual soldering through holes 53 a 2 to their corresponding pin terminals 98 B.
- the back wired board assembly 90 B can be assembled without the use of a press. Additionally, it should be noted that an relay connector 96 like that depicted in FIG. 12 may be used in place of the relay connector 96 B.
- FIG. 25 shows a fourth example of a back wired board assembly 90 C.
- the back wired board assembly 90 C is assembled such that the main back wired board 52 and sub back wired board 53 are fixedly mounted in such a way that by use of spacing bolts 115 and screws the main back wired board 52 and sub back wired board 53 are spaced apart, being connected by the pin terminals 93 c of the connector 93 C, that is, the connector 60 .
- An auxiliary spacer 130 like that shown in FIG. 27 is fixedly mounted on an upper surface of the sub back wired board 53 .
- this example has no relay connector 92 on the main back wired board side 52 and no relay connector 96 on the sub back wired board 53 .
- the interval a4 of the space 63 between the main back wired board 52 and the sub back wired board 53 is 3-7 mm, that is, approximately 10 mm less than that in the back wired board assemblies 90 , 90 A and 90 B shown in FIG. 10, FIG. 20 and FIG. 22.
- the A2 depth dimension shown in FIG. 4 can be decreased by 12 inches or more, thereby making it possible to achieve a shorter telecommunications device.
- connector 93 C has a pin terminal 93 Cb through which penetrates through a shroud 93 Ca.
- the pin terminal 93 Cb is an action pin terminal having two press-fit portions and, from the top, is structured as follows: The pin terminal portion 93 Cb 1 , the insertion portion 93 Cb 2 for inserting into the shroud 93 Ca, the first press-fit portion 93 Cb 3 , the pin portion 93 Cb 4 , the second press-fit portion 93 Cb 5 and the tip portion 93 Cb 6 .
- the size of the second press-fit portion 93 Cb 5 is slightly smaller than the size of the first press-fit portion 93 Cb 3 .
- the insertion portion 93 Cb 2 of the pin terminal 93 Cb is pressed into and fixedly mounted at the through hole of the shroud 93 Ca, such that the first press-fit portion 93 Cb 3 , the pin portion 93 Cb 4 , the second press-fit portion 93 Cb 5 and the tip portion 93 Cb 6 project from the bottom of the shroud 93 Ca.
- the main back wired board 52 has a press-fit through hole 52 b having a diameter corresponding to the size of the first press-fit portion 93 Cb 3 of the pin terminal 93 Cb.
- the sub back wired board 53 has a press-fit through hole 53 b having a diameter corresponding to the size of the second press-fit portion 93 Cb 5 .
- the diameter of the press-fit through hole 53 b of the sub back wired board 53 is slightly smaller than the diameter of the present invention fit through hole 52 b of the main back wired board.
- the first press-fit portion 93 Cb 3 is inserted into the press-fit through hole 52 b of the main back wired board 52 .
- the second press-fit portion 93 Cb 5 is inserted into the press-fit through hole 53 b of the sub back wired board 53 .
- the pin portion 93 Cb 4 cuts across space 63 .
- the tip portion 93 Cb 6 projects from the surface of the sub back wired board 53 .
- This entire assemblage is then placed atop a press jig 132 and the connector 93 C is set to the main back wired board 52 as shown in FIG. 28(B) and FIG. 29(A).
- the connector 93 C is connected such that the second press-fit portion 93 Cb 5 is inserted into and through the press-fit through hole 52 b provided on the main back wired board 52 , and the second press-fit portion 93 Cb 3 is inserted into the mouth of the press-fit through hole 52 b .
- the tip portion 93 Cb 6 opposes a tapered guide hole 130 a provided in the auxiliary spacer 130 .
- the tip portion 93 Cb 6 is guided by the tapered portion of the tapered guide hole 130 a and inserted into the press-fit through hole 53 b of the sub back wired board 53 .
- the auxiliary spacer 130 is provided in order to guide the tip portion 93 Cb 6 into the press-fit through hole 53 b of the sub back wired board 53 using the tapered guide hole 130 a.
- a through hole 131 a having a diameter larger than the press-fit through hole 53 b to which it corresponds is formed in the auxiliary board 131 , and is provided in order to receive the tip portion 93 Cb 6 that is projected from the bottom surface of the sub back wired board 53 .
- the press 132 has rams 134 provided at positions corresponding to each of the individual connectors 93 C. Each such ram 134 operates independently of the others.
- the press 132 is operated and the individual press rams 134 press down upon each of the connectors set atop the main back wired board 52 as shown in FIG. 28(C), achieving a state like that depicted in FIG. 29(B).
- the first press-fit portion 93 Cb 3 is pressed into the press-fit through hole 52 b of the main back wired board 52 .
- the second press-fit portion 93 Cb 5 is inserted into the press-fit through hole 53 b of the sub back wired board 53 .
- the shroud 93 Ca contacts the upper surface of the main back wired board 52 .
- the tip portion 93 Cb 6 is guided by the tapered guide h9ole 130 a into and through the press-fit through hole 53 b of the sub back wired board 53 , and projects below the bottom surface of the sub back wired board 53 to within a thickness of the auxiliary board 131 .
- each of the connectors 93 C is pressed down individually, so even a small amount of pressure P1 exerted on the rams 134 is sufficient. Additionally, after all the connectors 93 C have been pressed into place as shown in FIG. 28(D), the auxiliary board 131 is removed and the screws tightened once more, thereby producing the back wired board assembly 90 C depicted in FIG. 28(E).
- the back wired board assembly can be assembled efficiently and stablely.
- FIG. 30 shows another method for assembling the back wired board assembly 90 C, in which a device is used to press and insert one at a time each of the pin terminals 93 Cb having two press-fit portions.
- the initial preparatory stage is identical to that shown in FIG. 28(A).
- the main back wired board 52 and the sub back wired board 53 to which is fixedly mounted an auxiliary spacer 130 , together with an auxiliary board 131 positioned beneath and contacting the sub back wired board 53 are spaced and fixedly mounted by screws tightened to spacing bolts 115 .
- this assemblage is set to the pin pressing device, a shroud 93 Ca placed on the upper surface and the terminal pins 93 Cb, one at a time, from the top of the shroud 93 Ca, are passed through the shroud 93 Ca and the main back wired board 52 and pressed into the sub back wired board 53 as shown in FIG. 30(B) and (C), thus completing assembly of the back wired board assembly 90 C as shown in FIG. 30(C).
- pin terminal 93 Cb is inserted as independent parts and so even slight pressure is sufficient to ensure insertion of the pin terminal 93 Cb, thus eliminating the need to brace the sub back wired board 53 with a brace plate or other, similar means.
- FIG. 31 shows a fifth example of the back wired board assembly 90 D.
- the main back wired board 52 and the sub back wired board 53 are fixedly mounted at an interval via screws tightened through spacing bolts 115 .
- the top surface of the main back wired board 52 fixedly mounts a connector 93 D (connector 60 ).
- the tip portions of the pin terminals 93 Db of the connector 93 D are connected to relay connector 96 on the top surface of the sub back wired board 53 .
- the main back wired board 52 and the sub back wired board 53 are electrically connected by the pin terminal 93 Db of the connector 93 D and the relay connector 96 .
- FIG. 32 shows a sixth example of the back wired board assembly 90 D.
- the main back wired board 52 and the sub back wired board 53 are fixedly mounted at an interval via screws tightened through spacing bolts 115 .
- a connector 93 E is fixedly mounted on the top surface of the main back wired board 52 .
- the pin terminal 93 Eb of the connector 93 E is straightened by a sorting plate 140 on the bottom surface of the main back wired board 52 .
- the tip portion of the pin terminal 93 Eb is inserted into and through the through hole 53 c provided in the sub back wired board 53 and connected by an electrically conductive adhesive agent 142 . It should be noted that solder may be used in place of the electrically conductive adhesive agent 142 .
Abstract
A shelf-type telecommunications device has a back wired board assembly mounted on a back of a shelf unit into which a plurality of plug-in units are inserted side by side. The back wired board assembly has a main back wired board to which at least one plug-in unit is connected and a sub back wired board to which at least one external cable is connected, the outer surface of the main back wired board and the inner surface of the sub back wired board opposing each other. The main back wired board and the sub back wired board are fitted together by using a plurality of relay connectors or pin terminals so as to electrically connect the main back wired board and the sub back wired board to each other without the need for coaxial cables, thus reducing the size of the device.
Description
- 1. Field of the Invention
- The present invention relates to a shelf-type telecommunications device.
- 2. Description of the Related Art
- At present, a shelf-type SONET MUX is widely used as one type of telecommunications device on trunk lines in telephone networks in North America. As demand for telecommunications services has increased in recent years telecommunications devices for integrating a variety of different functions added to the SONET MUX, including data interfaces, ATM switches, etc., have come to be developed.
- At the same time, however, the integration of different functions tends to lead to an increase in the overall size of the telecommunications device. As the amount of space in which to place telecommunications devices tends to be limited, smallness of size is an important factor in such devices.
- FIG. 1 is a schematic structural diagram of a
conventional telecommunications device 10. Thetelecommunications device 10 has a shelf structure. To the back of theshelf unit 11 are fixedly mounted a main back wiredboard 12 and a sub back wiredboard 13. Additionally, aback cover 14 is attached. Within the shelf unit 11 a plug-inunit 15 is inserted and installed. Anexternal cable 21 is connected to the back of thetelecommunications device 10. - The separation of the back wired board into a main back wired
board 12 and a sub back wiredboard 13 exists because the electrical connection between the plug-inunit 15 and theexternal cable 21 is separated into the electrical connection of the plug-inunit 15 and the electrical connection of theexternal cable 21. That is, the function of electrically connecting the plug-in unit is assumed by the main back wiredboard 12 and the function of electrically connecting theexternal cable 21 is assumed by the sub back wiredboard 13. - As shown in FIG. 2, the plug-in
unit 15 is connected to the plug-inunit connector 16 on the front of the main back wiredboard 12. Theexternal cable 21 is connected toconnector 17 on the sub back wiredboard 13 via an opening 14 a in theback cover 14. - It should be noted that an electrical connection between the main back wired
board 12 and the sub back wiredboard 13 is effected by acoaxial cable 18. However, effecting the electrical connection between the main back wiredboard 12 and the sub back wiredboard 13 by using a coaxial cable requires space for connecting the ends of each and everycoaxial cable 18. - FIG. 3 shows rear and side rear views of a
conventional telecommunications device 10 for integrating a variety of different functions. In keeping with the conventional art, the electrical connection between the main back wiredboard 12A and the sub back wiredboard 13A is effected by acoaxial cable 18A. By the integration of different functions the number of coaxial cables approaches 1,000, with corresponding space required for connecting the ends of each of the coaxial cables. As a result, the height H1 of thedevice 10 increases substantially to approximately 16 U, 1 “U” being a standardized unit for measuring shelf height and equal to approximately 1.75 inches. - Additionally, as the number of these coaxial cables increases the size of the
space 20 required for bending and accommodating thecoaxial cables 18A also increases and, accordingly, the spacing a1 between the sub back wiredboard 13A and the main back wiredboard 12A must be enlarged to approximately 30 mm. As a result, the depth of thedevice 10A also increases to a size A1. - Accordingly, it is a general object of the present invention to provide a shelf-type telecommunications device in which the problems described above are solved.
- The above-described object of the present invention is achieved by providing a telecommunications device, comprising:
- a shelf unit;
- a plurality of plug-in units inserted into the shelf unit and disposed side by side;
- a main back wired board fixedly mounted to a back of the shelf unit;
- a sub back wired board positioned further to the rear of the main back wired board;
- a plurality of connectors for plug-in units mounted on an inner surface of the main back wired board so as to be connected to the plug-in units inserted into the shelf unit;
- a plurality of connectors for external cables mounted on an outer side of the sub back wired board so as to be connected to external cables;
- a plurality of relay connectors mounted on a surface of the main back wired board, the surface opposing the sub back wired board, and electrically connected to the plurality of connectors for plug-in units; and
- a plurality of relay connectors mounted on a surface of the sub back wired board, the surface opposing the main back wired board, the plurality of relay connectors being electrically connected to the plurality of connectors for external cables,
- wherein the plurality of relay connectors on the main back wired board and the corresponding plurality of relay connectors on the sub back wired board are fitted together, and the main back wired board and the sub back wired board are electrically connected to each other.
- By providing a telecommunications device in which relay connectors between an opposed main back wired board and sub back wired board are connected, and thus electrically connecting the main back wired board and the sub back wired board, the need for space within which to connect the terminals of the conventional coaxial cable between the main back wired board and the sub back wired board is eliminated. By eliminating the need for such additional space there is little need for the main back wired board and the sub back wired board to increase in size even with an increase in device functions.
- Further, the above-described object of the present invention is achieved by providing a telecommunications device comprising:
- a shelf unit;
- a plurality of plug-in units inserted into the shelf unit and disposed side by side;
- a main back wired board fixedly mounted on a back of the shelf unit;
- a sub back wired board positioned further to the rear of the main back wired board;
- a plurality of plug-in unit connectors mounted on an inner surface of the main back wired board so as to be connected to the plug-in units inserted into the shelf unit;
- a plurality of external cable connectors mounted on an outer surface of the sub back wired board so as to be connected to external cables; and
- a plurality of pin terminals provided on the plurality of plug-in unit connectors, the pin terminals each having two press-fit portions,
- wherein the pin terminals are pressed into and projected through the main back wired board toward the sub back wired board, and tip portions of the pin terminals are pressed into the sub back wire board, and the main back wired board and the sub back wired board are electrically connected to each other.
- By providing a telecommunications device in which the electrical connection between the main back wired board and the sub back wired board is effected by plug-in unit connector pin terminals, it is possible to reduce the space between the opposed main back wired board and sub back wired board by approximately one third as opposed to an electrical connection effected by connecting relay connectors between the main back wired board and the sub back wired board.
- Additionally, the above-described object of the present invention is also achieved by providing a telecommunications device comprising:
- a shelf unit;
- a plurality of plug-in units inserted into the shelf unit and disposed side by side;
- a main back wired board fixedly mounted to a back of the shelf unit;
- a sub back wired board positioned further to the rear of the main back wired board;
- a plurality of connectors for plug-in units mounted on an inner surface of the main back wired board so as to be connected to the plug-in units inserted into the shelf unit;
- a plurality of connectors for external cables mounted on an outer side of the sub back wired board so as to be connected to external cables;
- a plurality of pin terminals provided on the plurality of plug-in unit connectors, tip portions of the pin terminals being inserted into and projected through the main back wired board; and
- a plurality of relay connectors mounted on a surface of the sub back wired board, the surface opposing the main back wired board, the plurality of relay connectors being electrically connected to the plurality of connectors for external cables,
- wherein tip portions of the plurality of plug-in unit connector pin terminals are connected to the plurality of relay connectors on the sub back wired board, and the main back wired board and the sub back wired board are electrically connected to each other.
- By providing a telecommunications device in which the electrical connection between the main back wired board and the sub back wired board is effected by the plug-in unit connector pin terminals and the sub back wired board relay connectors, the need for relay connectors on the main back wired board is eliminated.
- Other objects, features and advantages of the present invention will become more apparent from the following detailed description when read in conjunction with the accompanying drawings.
- FIG. 1 is a schematic structural diagram of a conventional telecommunications device;
- FIG. 2 is a planar view of a portion of the telecommunications device depicted in FIG. 1;
- FIG. 3 shows rear and side rear views of a conventional telecommunications device for integrating a variety of different functions;
- FIG. 4 is a diagram of a first embodiment of a telecommunications device for integrating different functions according to the present invention;
- FIG. 5 is a block diagram of the telecommunications device depicted in FIG. 4;
- FIG. 6 is a diagram of the telecommunications device depicted in FIG. 4;
- FIG. 7 is a detailed diagram of the side view of the telecommunications device depicted in FIG. 6;
- FIG. 8 shows a rear side view of the telecommunications device depicted in FIG. 4 in a state of installation in a rack;
- FIG. 9 shows an exploded view of the telecommunications device in FIG. 4;
- FIG. 10 is an exploded rear view of the telecommunications device depicted in FIG. 4;
- FIG. 11 is a diagram depicting the fixed mounting of a relay connector of the main back wired board;
- FIG. 12 is a diagram of the electrical connection between the main back wired board and the sub back wired board;
- FIG. 13 is a diagram showing the connection of the plug-in unit to the back wired board;
- FIG. 14 is a diagram for explaining the electrical connection from the plug-in unit to the external cable;
- FIG. 15 is a diagram for explaining a method for assembling the back wired board assembly;
- FIG. 16 is a diagram for explaining a provisional mounting of the relay connector to the sub back wired board;
- FIG. 17 is a diagram for explaining the interconnection of relay connectors on the back wired board;
- FIG. 18 is a diagram of a second example of a provisional mounting of a relay connector on the sub back wired board;
- FIG. 19 is a diagram of a third example of a provisional mounting of a relay connector on the sub back wired board;
- FIG. 20 is a diagram of a second example of a back wired board assembly;
- FIG. 21 is an oblique exploded view of the back wired board assembly depicted in FIG. 20;
- FIG. 22 is a diagram of a third example of a back wired board assembly;
- FIG. 23 is a diagram for explaining a method for assembling a third example of the back wired board assembly;
- FIG. 24 is a diagram of the relay connector depicted in FIG. 23;
- FIG. 25 is a diagram of a fourth example of the back wired board assembly, including an expanded cross-sectional view thereof;
- FIG. 26 is an expanded and exploded view of a portion of the back wired board assembly depicted in FIG. 25;
- FIG. 27 is an oblique view of a spacer;
- FIG. 28 is a diagram for explaining a method of assembling the back wired board assembly depicted in FIG. 25;
- FIG. 29 is a diagram of parts of steps (B) and (C) of FIG. 28;
- FIG. 30 is a diagram showing a method of assembling the back wired board assembly depicted in FIG. 25;
- FIG. 31 is a diagram of a fifth example of a back wired board assembly; and
- FIG. 32 is a diagram of a sixth example of a back wired board assembly.
- A detailed description will now be given of an embodiment of the present invention, with reference, initially, to FIG. 4 through FIG. 10.
- FIG. 4 through FIG. 10 are diagrams of a first embodiment of a
telecommunications device 50 integrating different functions according to the present invention. Thetelecommunications device 50 is one in which such functions as a data interface, ATM switch, etc., have been added to the SONET MUX and, as shown in FIG. 5, comprises a circuit configuration comprisingtransport complex 71,service complex 72, switchingcomplex 73,synchronization complex 74 andmanagement complex 75. - The
transport complex 71 has a LINE terminal function Theservice complex 72 has a TRIB terminal function. The switchingcomplex 73 has a traffic connection function between LINE and TRIB in the STS/VT/ATM cell unit. Themanagement complex 75 has a surveillance and quality control/performance evaluation function. - The
telecommunications device 50 is one that has structured this circuit configuration and, as shown in FIG. 4 and FIG. 9, is of a shelf-type construction. On the back surface of the shelf unit 51 a main back wiredboard 52 and a sub back wiredboard 53 are fixedly mounted and, further, aback cover 54 is attached. Inside the shelf a plurality of plug-inunits 55 are inserted from the front of the shelf unit toward the rear of the shelf unit, and attached at the rear to client interfaceexternal cable 56. Anair filter 57 is provided at the front side of theshelf unit 51 so as to cover the plug-inunit 55. Additionally, afront cover 58 is provided. A plurality offan units 59 are mounted on the top surface of theshelf unit 51. - For reference purposes, the X axis represents width, the Y axis represents depth and the Z axis represents height.
- A plurality of plug-in
units 55 are connected to the plug-inunit connectors 60 on the front of the main back wiredboard 52 and are arranged side by side horizontally and, as shown in FIG. 4, form complexes 71-75. - The back wired board is divided into a main back wired
board 52 and a sub back wiredboard 53. The main back wiredboard 52 serves the function of providing a place to which the plug-inunit 55 is electrically connected. The sub-backwired board 53 serves the function of providing a place to which the client interfaceexternal cable 56 is connected. - As shown in FIG. 10, on the sub back wired
board 53 are mounted a DS3interface connector group 80, a DS1interface connector group 81 and a LANinterface connector group 82. The DS3interface connector group 80 comprises a group ofconnectors 80 a including an upper section of 18 connectors and a central section of 18 connectors arranged at an even pitch along the horizontal X axis. The DS1interface connector group 81 comprises a group ofconnectors 81 a including 6 upper connectors and 6 lower connectors arranged horizontally. The LANinterface connector group 82 consists of a group ofconnectors 82 a including 24 centrally positioned connectors arranged at an even pitch along the horizontal X axis. - As is explained more fully below, the main back wired
board 52 and the sub back wiredboard 53 are connected by relay connectors without the use of cables. Accordingly, the main back wiredboard 52 and the sub back wiredboard 53 are connected by relay connectors and thus form the back wiredboard assembly 90. According to this construction, space on the main back wiredboard 52 and sub back wiredboard 53 for connecting the cables is no longer necessary. Accordingly, although the addition of functions such as data interfaces, ATM switches, etc., to the SONET MUX increases the number of electrical connections between the main back wiredboard 52 and the sub back wiredboard 53 by 1,000 or more, nevertheless the size of the main back wiredboard 52 and the sub back wiredboard 53 does not substantially increase. - Accordingly, the
telecommunications device 50 of the present embodiment requires a height of no more than 10 U, a full 6 U shorter than the height of the main back wired board and sub back wired board when connected by cables according to the conventional art. Accordingly, such a reduction in the height of thetelecommunications device 50, as shown in FIG. 8, makes it possible to install three such devices in the 7-foot rack that is standard in North America. - The width W2 of the
telecommunications device 50 corresponds to the width of the rack, that is, W2=W1. - Additionally, because the main back wired
board 52 and the sub back wiredboard 53 are connected by relay connectors without the use of cables, the width a2 of thespace 63 between the sub back wiredboard 53 and the main back wiredboard 52 can be reduced by nearly half, from the conventional 30 mm to 17 mm. Accordingly, thetelecommunications device 50 can be made more compact and, as a result, a passageway for an operator between devices positioned so that the backs of the devices face each other may be widened. - A description will now be given of a back
wired board assembly 90, to be preceded, however, by a description of the main back wiredboard 52. - On the main back wired board there is provided a
connector device 19 as shown in FIG. 11 and FIG. 14. Therelay connector device 91 comprises a plug-inunit connector 60 on the side toward the Y2 direction and arelay connector 92 on the side toward the Y1 direction, as shown in FIG. 10. - In order to create the
connector device 91, ametric connector 93 like that shown in FIG. 11(A) is prepared. Themetric connector 93 has ashroud 93 a and a longer-than-usual pin terminal 93 b that pierces theshroud 93 a. Thepin terminal 93 b has a press-fit portion 93 bl at approximately a central position of thepin terminal 93 b. - As shown in FIG. 11(B), the
pin 93 b of themetric connector 93 is inserted into and through anaperture 52 a in the main back wiredboard 52 and the press-fit portion 93 bl is pressed into theaperture 52 a so as to occupy the interior of theaperture 52 a. As a result, themetric connector 93 is firmly fixedly mounted on the main back wired board. - As shown in FIG. 11(C), a sorting
plate 94 is fitted to the pins of thepin terminal 93 b that project horizontally from the surface of the main back wiredboard 52 so as to sort the pins of thepin terminal 93 b into predetermined rows. In this state, as shown in FIG. 11(D), ashroud 95 is fitted to thepin terminal 93 b and pressed against thepin terminal 93 b. Since the pins of thepin terminal 93 b have been sorted by the sortingplate 94, the shroud is securely fitted to theentire pin terminal 93 b. The pins of thepin terminal 93 b project into the interior of theshroud 95, the sortingplate 94 is advanced against the surface of the main back wiredboard 52, theholes 95 a of theshroud 95 is pressed against an opposing finger-like projectingportion 94 a projecting from the sortingplate 94, the projecting finger-like portion 94 a clamps thepin terminal 93 b, thus fixedly mounting theshroud 95. - A portion of the
metric relay connector 93 that projects horizontally in the Y2 direction from the main back wiredboard 52 forms the plug-inunit connector 60. - The
shroud 95 and thepin terminal 93 b projecting into the interior of theshroud 95 forms therelay connector 92. - For the sake of convenience, in FIG. 11 the
shroud 93 a of the plug-inunit connector 60 and theshroud 95 of therelay connector 92 are shown oriented in the same direction. However, in actuality, as shown in FIG. 10, the plug-inunit connector 60 has the shroud in a vertical Z-axis position while thatrelay connector 92 has the shroud in a front-to-back X-axis position, that is, perpendicular to the horizontal Y axis position. Therelay connector 92 has the shroud positioned along the X axis because it is matched with therelay connector 96 on the surface of the rear Y1 side of the sub back wiredboard 53. - As shown in FIG. 10, FIG. 12(A) and FIG. 14, an
relay connector 96 is mounted on the surface of the Y1 side of the sub back wiredboard 53. Therelay connector 96 opposes the previously mentionedrelay connector 92 and is so disposed that a longer side thereof is positioned along the horizontal X axis in tandem with the DS3interface connector group 80, with 8 connectors disposed each in two parallel upper and lower rows. - Each
relay connector 96 is electrically connected to eachconnector board 53. - With the back wired
board assembly 90, as shown in FIG. 12(C) allrelay connectors 96 are fitted to and connected withcorresponding relay connectors 92, thus the sub back wiredboard 53 and the main back wiredboard 52 are connected byconnectors relay connectors 96 andrelay connectors 92 at the fitted connection. It should also be noted that the fitted connection ofrelay connectors 96 andrelay connectors 92 also has the effect of connecting the sub back wiredboard 53 and the main back wiredboard 52 mechanically as well as electrically. - A description will be given later of the connection of the connectors of the sub back wired
board 53 with the main back wiredboard 52. - The plug-in
unit 55, as shown in FIG. 13 (A) and (B) involves fitting the tip of theconnector 97 in the direction of the insertion into the plug-inunit connector 60, connecting and then loading. The loaded plug-inunit 55 and the client interfaceexternal cable 56, as shown in FIG. 13(B) and FIG. 14, are electrically connected by the plug-inunit connector 60 being connected to therelay connector 92, which is connected to therelay connector 96, which is connected to the sub back wiredboard 53 which is connected to theconnector 80 a (81 a, 82 a). - Next, a description will be given of the assembly of the back wired
key board assembly 90, that is, of the connection of the connectors of the sub back wiredboard 53 to the main back wiredboard 52. - As shown in FIG. 16, the
relay connector 96 is provisionally affixed to the sub back wiredboard 53. Thepin terminals 98 of therelay connector 96 have a press-fit portion 98 a that is substantially a FIG. 8 in cross section. A throughhole 53 a for soldering is formed on the sub back wiredboard 53. A press-fit throughhole 100 for press-fitting the press-fit portion 98 a has a diameter d2 of 0.6 mm. The solder throughhole 53 a has a diameter d1 of 0.85 mm, which is larger than the diameter of the press-fit through hole diameter d2 so as to accommodate the press-fit portion 98 a without causing elastic deformation of the press-fit portion 98 a. - The
pin connector 98 of therelay connector 96 is inserted into the solder throughhole 53 a in the sub back wiredboard 53. The press-fit portion 98 a is thus in a state of lightly contacting the inner surface of the solder throughhole 53 a, in such a way that therelay connector 96 does not come loose and fall out even when the sub back wiredboard 53 is positioned horizontally with therelay connector 96 facing downward. Moreover,adequate space 101 is left between the press-fit portion 98 a and the solder throughhole 53 a so that thepin terminal 98 can be twisted laterally substantially within the solder throughhole 53 a at respective angles α (approximately 10 degrees) with respect to a hypothetical vertical line along the vertical Z axis. - Accordingly, the
relay connector 96 is provisionally mounted on the sub back wiredboard 53 in a state in which it can be freely twisted within a range of angle β, that is, several degrees, with respect to a hypothetical vertical line along the vertical Z axis. - As shown in FIG. 15(A), assembly of the back
wired board assembly 90 involves fitting guide holes on the main back wiredboard 52 to guidepins 111 and setting the main back wiredboard 52 onto apress jig 110. - Next, as shown in FIG. 12(A) and (B) and FIG. 17, a
sorting plate 112 is fitted lightly onto all therelay connectors 92. A plurality ofholes 113 in thesorting plate 112 having tapered openings straightens thepins 93 b of therelay connector 92 into perfect rows. By fitting thesorter plate 112 lightly onto the relay connector any bent pins are straightened and all thepins 93 b are sorted into positions within +0.05 mm of predetermined perfect rows. - Next, as shown in FIG. 15(B), an assembler holds the sub back wired
board 53 provisionally mounting therelay connector 96 so that therelay connectors 96 face downward, fits the guide holes to the guide pins 111 and gently lowers the sub back wiredboard 53 onto the main back wiredboard 52 as shown in FIG. 15(C). All therelay connectors 96 are thus in a state of being fitted to the openings of thecorresponding relay connectors 92. - Next, as shown in FIG. 15(D), the
press jig 114 is set atop the sub back wiredboard 53, a press (not shown in the drawing) is set atop thepress jig 114, a pressure P is applied to the press and all 24 of therelay connectors 96 are at once fitted to theircorresponding relay connectors 92. Therelay connectors 96 press upon thesorter plate 112 and are fitted to therelay connectors 92. - It should be noted that the depth of the fitting of the
relay connectors 96 to therelay connectors 92 is reduced by an amount equal to the thickness of thesorter plate 112. However, the thickness of thesorter plate 112 is merely 1 mm, so the contacts 98 b are fully connected to thepins 93 b despite the presence of thesort plate 112. - With the
relay connector 96 in a substantially loose state, eachrelay connector 96 is loosened appropriately so as to accommodate anopposite relay connector 92 and is fitted to ashroud 95. That is, any misalignment betweencorresponding relay connectors 96 andrelay connectors 92 is absorbed and, accordingly, all 24relay connectors 96 are together fitted normally to correspondingrelay connectors 92. When therelay connector 96 is matched to the shroud, even relayconnectors 96 that are badly misaligned with respect to theircorresponding relay connectors 92 do not exert an excessive force on theshroud 95 and hence theshroud 95 does not crack. - Additionally, as described above the sorting
plate 112 aligns all thepins 93 b into predetermined perfect rows within a range of error of +0.05 mm, and thus there is no danger of even one pin being bent and so failing to be connected. As a result, all of the approximately 1,800pins 93 b are inserted, with a relatively high degree of reliability, into the holes in therelay connector 96, and, accordingly, are normally and with a high degree of reliability connected to the contact 98 b of the tips of thepin terminal 98. - By using the
press jig 114 the sub back wiredboard 53 is maintained in substantially a true horizontal position and pressure is exerted on all 24relay connectors 96 substantially evenly. By connecting theintermediate contacts 96 using thepress jig 114 as described above, the reliability of the operation of connecting all 24relay connectors 96 to relayconnectors 92 is improved. - Next, screws are tightened atop spacing
bolts 115 provided throughout the main back wiredboard 52, thus fixedly mounting the sub back wiredboard 53 to the main back wiredboard 52. - Next, the
pin terminal 98 of therelay connector 96 is soldered to the solder throughhole 53 a of the sub back wiredboard 53. The soldering is shown as 116 in FIG. 15(E). - In the manner described above assembly of the back
wired board assembly 90 is completed. - A description will now be given of a second and third example of the
relay connector 96 mounted in a loose state of attachment to the sub back wiredboard 53. - FIG. 18 shows a second example, in which the
pin terminal 98 of therelay connector 96 is inserted into and through the solder throughhole 53 a 1 in the sub back wiredboard 53 and the tip of thepin terminal 98 covered with anadhesive tape 120 and the tape attached to a top surface of the sub back wiredboard 53 so as to provisionally mount thepin terminal 98 to the sub back wiredboard 53 via the solder throughhole 53 a 1. The provisional mounting of thepin terminal 98 is achieved by the use ofadhesive tape 120, so the solder throughhole 53 a 1 is slightly larger than the solder throughhole 53 a used for provisional mounting using friction as shown in FIG. 16, having a diameter of 1 mm. Accordingly, thepin terminal 98 can be twisted to the left and right around the vertical Z axis at an angle α1 of up to approximately 20 degrees, that is, greater than that described above. Accordingly, therelay connector 96 can be freely twisted around the vertical Z axis at an angle β1 greater than that for the previous composition, that is, approximately 10 degrees, and thereby provisionally mounted on the sub back wiredboard 53. - FIG. 19 shows a third example. In place of the adhesive tape120 a
sheet 121 having a plurality ofholes 121 a having an arrangement identical to the arrangement of thepin terminals 98 is used.Sheet 121 is fitted to the sub back wiredboard 53 in such a way that the plurality ofholes 121 a in thesheet 121 are fitted to the tips of thepin terminals 98 inserted into and through the solder throughholes 53 a 1 of the sub back wiredboard 53 and attached in such a way as to avoid easy loosening and detachment from the sub back wiredboard 53. - Next, a description will be given of a variation of the back wired board assembly, with particular reference to FIG. 20 and FIG. 21.
- FIG. 20 shows a second variation of a back
wired board assembly 90A, which, as is shown in FIG. 21, provides on the main back wiredboard 52 anrelay connector 92A having 24 individual connectors arranged as a single unit in one flat plane. Similarly, a similarlylarge relay connector 96A having 24 individual connectors arranged as a single unit in one flat plane is provided on the sub back wiredboard 53.Relay connector 92A andrelay connector 96A are connected to each other. -
Relay connector 92A comprises alarge sorting plate 94A that itself combines 24individual sorter plates 94 and ashroud 95A corresponding in size to thesorting plate 94A. - The
relay connector 96A of the sub back wiredboard 53 is fitted to therelay connector 92A using a press to fit alarge sorting plate 112A that itself combines 24individual sorting plates 112 onto the tips of thepins 93 b so as to straighten thepins 93 b. - It should be noted that there is one
relay connector 92A and onerelay connector 96A. As a result, all thepins 93 b ofrelay connector 92A correspond to all the holes inrelay connector 96A, and thus relayconnector 96A andrelay connector 92A fit together smoothly. - A description will now be given of a third example, with particular reference to FIG. 22, FIG.23 and FIG. 24.
- FIG. 22 shows a third example of a back
wired board assembly 90B. The back wiredboard assembly 90B comprises the main back wiredboard 52, the sub back wiredboard 53,relay connector 92 connected to relayconnector 96B, and the whole fixedly mounted by screws tightened in spacingbolts 115. There is nosorter plate 112 like that shown in FIG. 12, so the interval a3 ofspace 63 between the sub back wiredboard 53 and the main back wiredboard 52 is approximately 16 mm, that is, approximately 1 mm less than that shown in the back wiredboard assembly 90 shown in FIG. 6 and FIG. 7. The lack of asorter plate 112 arises from the method of assembly, which precludes the need forsuch sorter plate 112. - The back wired
board assembly 90B, as shown in FIG. 23(A) comprises a main back wiredboard 52 that isconnector device 90, the guide holes of which are fitted to the guide pins 111 and set on thepress jig 110. Next, as shown in FIG. 23(B), therelay connectors 96B depicted in FIG. 24 are one by one fitted to relayconnectors 92. No sorter plate is used, and the pin terminals 98B are positioned so as to face up. - Next, as shown in FIG. 23(C), the assembler holds the sub back wired
board 53 in both hands, fits the guide holes to the guide pins 111, gently lowers the sub back wiredboard 53 so as to fit the solder throughholes 53 a 2 to the corresponding pin terminals 98B. The solder throughholes 53 a 2 have a large diameter and the pin terminals 98B have pointed tips 98Ba so as to ease the fitting of the individual soldering throughholes 53 a 2 to their corresponding pin terminals 98B. - Next, the screws are tightened to the spacing
bolts 115 on the sub back wiredboard 53 and the pin terminals 98B of therelay connectors 96B are soldered to the soldering throughholes 53 a 1 of the sub block wiredboard 53. - As can be readily appreciated from the above description, the back wired
board assembly 90B can be assembled without the use of a press. Additionally, it should be noted that anrelay connector 96 like that depicted in FIG. 12 may be used in place of therelay connector 96B. - A description will now be given of a fourth example of a back
wired board assembly 90, with particular reference to FIG. 25 through FIG. 30. - FIG. 25 shows a fourth example of a back
wired board assembly 90C. The back wiredboard assembly 90C is assembled such that the main back wiredboard 52 and sub back wiredboard 53 are fixedly mounted in such a way that by use of spacingbolts 115 and screws the main back wiredboard 52 and sub back wiredboard 53 are spaced apart, being connected by thepin terminals 93 c of theconnector 93C, that is, theconnector 60. Anauxiliary spacer 130 like that shown in FIG. 27 is fixedly mounted on an upper surface of the sub back wiredboard 53. Unlike the backwired board assemblies relay connector 92 on the main back wiredboard side 52 and norelay connector 96 on the sub back wiredboard 53. As a result, the interval a4 of thespace 63 between the main back wiredboard 52 and the sub back wiredboard 53 is 3-7 mm, that is, approximately 10 mm less than that in the backwired board assemblies board assembly 90C, the A2 depth dimension shown in FIG. 4 can be decreased by 12 inches or more, thereby making it possible to achieve a shorter telecommunications device. - As shown in FIG. 26,
connector 93C has a pin terminal 93Cb through which penetrates through a shroud 93Ca. The pin terminal 93Cb is an action pin terminal having two press-fit portions and, from the top, is structured as follows: The pin terminal portion 93Cb1, the insertion portion 93Cb2 for inserting into the shroud 93Ca, the first press-fit portion 93Cb3, the pin portion 93Cb4, the second press-fit portion 93Cb5 and the tip portion 93Cb6. The size of the second press-fit portion 93Cb5 is slightly smaller than the size of the first press-fit portion 93Cb3. The insertion portion 93Cb2 of the pin terminal 93Cb is pressed into and fixedly mounted at the through hole of the shroud 93Ca, such that the first press-fit portion 93Cb3, the pin portion 93Cb4, the second press-fit portion 93Cb5 and the tip portion 93Cb6 project from the bottom of the shroud 93Ca. - The main back wired
board 52 has a press-fit throughhole 52 b having a diameter corresponding to the size of the first press-fit portion 93Cb3 of the pin terminal 93Cb. The sub back wiredboard 53 has a press-fit throughhole 53 b having a diameter corresponding to the size of the second press-fit portion 93Cb5. The diameter of the press-fit throughhole 53 b of the sub back wiredboard 53 is slightly smaller than the diameter of the present invention fit throughhole 52 b of the main back wired board. - The first press-fit portion93Cb3 is inserted into the press-fit through
hole 52 b of the main back wiredboard 52. The second press-fit portion 93Cb5 is inserted into the press-fit throughhole 53 b of the sub back wiredboard 53. As a result, the pin portion 93Cb4 cuts acrossspace 63. The tip portion 93Cb6 projects from the surface of the sub back wiredboard 53. - A description will now be given of the assembly of the back
wired board assembly 90C described above, with initial reference to FIG. 28. - As shown in FIG. 28(A), the main back wired
board 52 and the sub back wired board to which thesupplementary spacer 130 is fixedly mounted, together with anauxiliary board 131 positioned beneath and contacting the bottom surface of the sub back wiredboard 53, are fixedly mounted at intervals using screws tightened to spacingbolts 115. This entire assemblage is then placed atop apress jig 132 and theconnector 93C is set to the main back wiredboard 52 as shown in FIG. 28(B) and FIG. 29(A). Theconnector 93C is connected such that the second press-fit portion 93Cb5 is inserted into and through the press-fit throughhole 52 b provided on the main back wiredboard 52, and the second press-fit portion 93Cb3 is inserted into the mouth of the press-fit throughhole 52 b. In this state, the tip portion 93Cb6 opposes a taperedguide hole 130 a provided in theauxiliary spacer 130. In some cases, the tip portion 93Cb6 is guided by the tapered portion of the taperedguide hole 130 a and inserted into the press-fit throughhole 53 b of the sub back wiredboard 53. It should be noted that theauxiliary spacer 130 is provided in order to guide the tip portion 93Cb6 into the press-fit throughhole 53 b of the sub back wiredboard 53 using the taperedguide hole 130 a. - A through
hole 131 a having a diameter larger than the press-fit throughhole 53 b to which it corresponds is formed in theauxiliary board 131, and is provided in order to receive the tip portion 93Cb6 that is projected from the bottom surface of the sub back wiredboard 53. - The
press 132 hasrams 134 provided at positions corresponding to each of theindividual connectors 93C. Eachsuch ram 134 operates independently of the others. Thepress 132 is operated and the individual press rams 134 press down upon each of the connectors set atop the main back wiredboard 52 as shown in FIG. 28(C), achieving a state like that depicted in FIG. 29(B). The first press-fit portion 93Cb3 is pressed into the press-fit throughhole 52 b of the main back wiredboard 52. The second press-fit portion 93Cb5 is inserted into the press-fit throughhole 53 b of the sub back wiredboard 53. The shroud 93Ca contacts the upper surface of the main back wiredboard 52. The tip portion 93Cb6 is guided by the tapered guide h9ole 130 a into and through the press-fit throughhole 53 b of the sub back wiredboard 53, and projects below the bottom surface of the sub back wiredboard 53 to within a thickness of theauxiliary board 131. - Each of the
connectors 93C is pressed down individually, so even a small amount of pressure P1 exerted on therams 134 is sufficient. Additionally, after all theconnectors 93C have been pressed into place as shown in FIG. 28(D), theauxiliary board 131 is removed and the screws tightened once more, thereby producing the back wiredboard assembly 90C depicted in FIG. 28(E). - As can be readily appreciated from the above description, the back wired board assembly can be assembled efficiently and stablely.
- FIG. 30 shows another method for assembling the back wired
board assembly 90C, in which a device is used to press and insert one at a time each of the pin terminals 93Cb having two press-fit portions. - The initial preparatory stage is identical to that shown in FIG. 28(A). As shown in FIG. 30 (A), the main back wired
board 52 and the sub back wiredboard 53 to which is fixedly mounted anauxiliary spacer 130, together with anauxiliary board 131 positioned beneath and contacting the sub back wiredboard 53, are spaced and fixedly mounted by screws tightened to spacingbolts 115. Next, this assemblage is set to the pin pressing device, a shroud 93Ca placed on the upper surface and the terminal pins 93Cb, one at a time, from the top of the shroud 93Ca, are passed through the shroud 93Ca and the main back wiredboard 52 and pressed into the sub back wiredboard 53 as shown in FIG. 30(B) and (C), thus completing assembly of the backwired board assembly 90C as shown in FIG. 30(C). - It should be noted that the pin terminal93Cb is inserted as independent parts and so even slight pressure is sufficient to ensure insertion of the pin terminal 93Cb, thus eliminating the need to brace the sub back wired
board 53 with a brace plate or other, similar means. - A fifth example of a back wired board assembly will now be described, with reference to FIG. 31.
- FIG. 31 shows a fifth example of the back
wired board assembly 90D. The main back wiredboard 52 and the sub back wiredboard 53 are fixedly mounted at an interval via screws tightened through spacingbolts 115. The top surface of the main back wiredboard 52 fixedly mounts aconnector 93D (connector 60). The tip portions of thepin terminals 93 Db of theconnector 93D are connected to relayconnector 96 on the top surface of the sub back wiredboard 53. The main back wiredboard 52 and the sub back wiredboard 53 are electrically connected by thepin terminal 93 Db of theconnector 93D and therelay connector 96. - FIG. 32 shows a sixth example of the back
wired board assembly 90D. The main back wiredboard 52 and the sub back wiredboard 53 are fixedly mounted at an interval via screws tightened through spacingbolts 115. Aconnector 93E is fixedly mounted on the top surface of the main back wiredboard 52. The pin terminal 93Eb of theconnector 93E is straightened by a sortingplate 140 on the bottom surface of the main back wiredboard 52. The tip portion of the pin terminal 93Eb is inserted into and through the throughhole 53 c provided in the sub back wiredboard 53 and connected by an electrically conductiveadhesive agent 142. It should be noted that solder may be used in place of the electrically conductiveadhesive agent 142. - The above description is provided in order to enable any person skilled in the art to make and use the invention and sets forth the best mode contemplated by the inventors of carrying out their invention.
- The present invention is not limited to the specifically disclosed embodiments and variations, and modifications may be made without departing from the scope of the present invention.
- The present application is based on Japanese priority application No. 10-304394 filed on Oct. 26, 1998, the entire contents of which are hereby incorporated by reference.
Claims (12)
1. A telecommunications device, comprising:
a shelf unit;
a plurality of plug-in units inserted into the shelf unit and disposed side by side;
a main back wired board fixedly mounted to a back of the shelf unit;
a sub back wired board positioned further to the rear of the main back wired board;
a plurality of connectors for plug-in units mounted on an inner surface of the main back wired board so as to be connected to the plug-in units inserted into the shelf unit;
a plurality of connectors for external cables mounted on an outer side of the sub back wired board so as to be connected to external cables;
a plurality of relay connectors mounted on a surface of the main back wired board, the surface opposing the sub back wired board, and electrically connected to the plurality of connectors for plug-in units; and
a plurality of relay connectors mounted on a surface of the sub back wired board, the surface opposing the main back wired board, the plurality of relay connectors being electrically connected to the plurality of connectors for external cables,
wherein the plurality of relay connectors on the main back wired board and the corresponding plurality of relay connectors on the sub back wired board are fitted together, and the main back wired board and the sub back wired board are electrically connected to each other.
2. The telecommunications device as claimed in claim 1 , wherein the main back wired board and the sub back wired board form a single back wired board assembly, the plurality of relay connectors on the main back wired board and the plurality of relay connectors on the sub back wired board being fitted together and electrically connected.
3. The telecommunications device as claimed in claim 2 , wherein the back wired board assembly is assembled so that a plurality of relay connectors on the sub back wired board are initially provisionally mounted in a loose state on the sub back wired board, and the relay connectors loosely mounted on the sub back wired board are simultaneously fitted to the corresponding plurality of relay connectors on the main back wired board.
4. The telecommunications device as claimed in claim 2 , wherein the back wired board assembly is assembled so that plurality of relay connectors on the sub back wired board are initially provisionally mounted in a loose state on the sub back wired board, a plurality of pin terminals of a plurality of relay connectors are arranged on the main back wired board, a sorting plate straightens the pin terminals, and the relay connectors on the sub back wired board are fitted to corresponding relay connectors on the main back wired board so as to depress the sorting plate.
5. The telecommunications device as claimed in claim 3 , wherein the provisional mounting in a loose state of the plurality of relay connectors on the sub back wired board is accomplished by loosely fitting a plurality of terminals of the plurality of relay connectors to a plurality of holes in the sub back wired board.
6. The telecommunications device as claimed in claim 3 , wherein the provisional mounting in a loose state of the plurality of relay connectors on the sub back wired board is accomplished by loosely fitting the plurality of terminals of the plurality of relay connectors to and through a plurality of holes in the sub back wired board and holding the terminals in place by attaching tape to the tips of the terminals.
7. The telecommunications device as claimed in claim 2 , wherein the back wired board assembly is assembled so that a plurality of sub back wired board relay connectors not mounted on the sub back wired board are fitted to and connected to each of the plurality of relay connectors on the main back wired board, the sub back wired board is guided by a plurality of guide pins and brought into proximity with pin terminals protruding from back surfaces of the plurality of sub back wired board relay connectors, and a plurality of through holes in the sub back wired board and the pin terminals are fitted together.
8. A telecommunications device comprising:
a shelf unit;
a plurality of plug-in units inserted into the shelf unit and disposed side by side;
a main back wired board fixedly mounted on a back of the shelf unit;
a sub back wired board positioned further to the rear of the main back wired board;
a plurality of plug-in unit connectors mounted on an inner surface of the main back wired board so as to be connected to the plug-in units inserted into the shelf unit;
a plurality of external cable connectors mounted on an outer surface of the sub back wired board so as to be connected to external cables; and
a plurality of pin terminals provided on the plurality of plug-in unit connectors, the pin terminals each having two press-fit portions,
wherein the pin terminals are pressed into and projected through the main back wired board toward the sub back wired board, and tip portions of the pin terminals are pressed into the sub back wire board, and the main back wired board and the sub back wired board are electrically connected to each other.
9. The telecommunications device as claimed in claim 8 , wherein the main back wired board and the sub back wired board form a single back wired board assembly, the main back wired board and the sub back wired board being electrically connected by the pressed pin terminals.
10. The telecommunications device as claimed in claim 9 , wherein the back wired board assembly is assembled so that the main back wired board and the sub back wired board are fixedly mounted so as to provide a space there between, and the plurality of plug-in unit connectors are mounted individually by pressing and inserting a plurality of pin terminals thereof through the main back wired board and then through the sub back wired board.
11. The telecommunications device as claimed in claim 9 , wherein the back wired board assembly is assembled so that the main back wired board and the sub back wired board are fixedly mounted so as to provide a space there between, the plurality of plug-in connector pin terminals being independent parts each individually pressed into and through a plug-in unit connector shroud mounted atop the main back wired board so as to project into and through the main back wired board and then into and through the sub back wired board.
12. A telecommunications device comprising:
a shelf unit;
a plurality of plug-in units inserted into the shelf unit and disposed side by side;
a main back wired board fixedly mounted to a back of the shelf unit;
a sub back wired board positioned further to the rear of the main back wired board;
a plurality of connectors for plug-in units mounted on an inner surface of the main back wired board so as to be connected to the plug-in units inserted into the shelf unit;
a plurality of connectors for external cables mounted on an outer side of the sub back wired board so as to be connected to external cables;
a plurality of pin terminals provided on the plurality of plug-in unit connectors, tip portions of the pin terminals being inserted into and projected through the main back wired board; and
a plurality of relay connectors mounted on a surface of the sub back wired board, the surface opposing the main back wired board, the plurality of relay connectors being electrically connected to the plurality of connectors for external cables,
wherein tip portions of the plurality of plug-in unit connector pin terminals are connected to the plurality of relay connectors on the sub back wired board, and the main back wired board and the sub back wired board are electrically connected to each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/095,328 US20040235319A1 (en) | 1998-10-26 | 2002-03-11 | Telecommunications device |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10-304394 | 1998-10-26 | ||
JP30439498A JP3701481B2 (en) | 1998-10-26 | 1998-10-26 | Communication device |
US09/347,219 US6390831B2 (en) | 1998-10-26 | 1999-07-02 | Shelf-type telecommunications device including main and sub back wired boards connected by relay connectors |
US10/095,328 US20040235319A1 (en) | 1998-10-26 | 2002-03-11 | Telecommunications device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/347,219 Division US6390831B2 (en) | 1998-10-26 | 1999-07-02 | Shelf-type telecommunications device including main and sub back wired boards connected by relay connectors |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040235319A1 true US20040235319A1 (en) | 2004-11-25 |
Family
ID=17932499
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/347,219 Expired - Fee Related US6390831B2 (en) | 1998-10-26 | 1999-07-02 | Shelf-type telecommunications device including main and sub back wired boards connected by relay connectors |
US10/095,328 Abandoned US20040235319A1 (en) | 1998-10-26 | 2002-03-11 | Telecommunications device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/347,219 Expired - Fee Related US6390831B2 (en) | 1998-10-26 | 1999-07-02 | Shelf-type telecommunications device including main and sub back wired boards connected by relay connectors |
Country Status (3)
Country | Link |
---|---|
US (2) | US6390831B2 (en) |
JP (1) | JP3701481B2 (en) |
CN (1) | CN1173582C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006000959A1 (en) * | 2006-01-07 | 2007-07-12 | Leopold Kostal Gmbh & Co. Kg | Electrical device for motor vehicle, has pressing pin that is pressed with end section into switch carrier to establish electrical connection, and another end section of pin is pressed into another carrier to establish connection |
US20070281504A1 (en) * | 2006-05-30 | 2007-12-06 | Makoto Aoki | Connector system, packaging structure, and electronic device using the same |
US20110050052A1 (en) * | 2009-09-01 | 2011-03-03 | Emerson Network Power, Energy Systems, North America, Inc. | Telecommunications Enclosures |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001119177A (en) | 1999-10-15 | 2001-04-27 | Fujitsu Ltd | Different-function integrating communication device |
US6757177B2 (en) * | 2001-07-05 | 2004-06-29 | Tropic Networks Inc. | Stacked backplane assembly |
US6958908B2 (en) * | 2003-05-30 | 2005-10-25 | Hubbell Incorporated | Compact enclosure for interchangeable SONET multiplexer cards and methods for using same |
JP2006179766A (en) * | 2004-12-24 | 2006-07-06 | Mitsubishi Electric Corp | Power module and its manufacturing method |
JP4489786B2 (en) * | 2007-02-15 | 2010-06-23 | 富士通株式会社 | Transmission device and subrack |
EP2348800B1 (en) * | 2010-01-26 | 2014-03-12 | Portwell Inc. | Redundant power supply device |
JP5672135B2 (en) * | 2011-04-28 | 2015-02-18 | 富士通株式会社 | Collective connector housing, collective connector, and electronic device |
DE102014011703A1 (en) * | 2014-08-07 | 2016-02-11 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt | Electronic unit, in particular capacitive proximity sensor |
DE102015111972A1 (en) * | 2015-07-23 | 2017-01-26 | Abb Schweiz Ag | Circuit board on several levels with interface for plug-in card |
US10356928B2 (en) | 2015-07-24 | 2019-07-16 | Transtector Systems, Inc. | Modular protection cabinet with flexible backplane |
US9924609B2 (en) * | 2015-07-24 | 2018-03-20 | Transtector Systems, Inc. | Modular protection cabinet with flexible backplane |
US10588236B2 (en) * | 2015-07-24 | 2020-03-10 | Transtector Systems, Inc. | Modular protection cabinet with flexible backplane |
DE102017002307A1 (en) | 2017-03-10 | 2018-09-13 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | INSIDE WIRE ELEMENT |
JP7154583B2 (en) * | 2018-12-11 | 2022-10-18 | 株式会社Piezo Sonic | Piezoelectric motor and method of manufacturing piezoelectric motor and connector assembly |
CN114268851B (en) * | 2022-02-28 | 2022-05-20 | 深圳中科德能科技有限公司 | Array moisture-proof industrial switch |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4076356A (en) * | 1976-10-18 | 1978-02-28 | Bell Telephone Laboratories, Incorporated | Interconnection pin for multilayer printed circuit boards |
US4828514A (en) * | 1988-01-21 | 1989-05-09 | Gte Products Corporation | Electrical connector with compliant section |
US4883429A (en) * | 1988-02-03 | 1989-11-28 | Japan Aviation Electronics Industry, Limited | Electronic device packaging structure |
US4992054A (en) * | 1987-07-28 | 1991-02-12 | Societe Francaise Metallo S.A. | Connector with a retractable base plate to protect its contact outlets |
US5181855A (en) * | 1991-10-03 | 1993-01-26 | Itt Corporation | Simplified contact connector system |
US5348488A (en) * | 1993-04-09 | 1994-09-20 | The Whitaker Corporation | Electrical connector with board-mounting alignment system |
US5522730A (en) * | 1993-07-01 | 1996-06-04 | The Whitaker Corporation | Electrical pin field |
US5761050A (en) * | 1996-08-23 | 1998-06-02 | Cts Corporation | Deformable pin connector for multiple PC boards |
US6171133B1 (en) * | 1998-08-06 | 2001-01-09 | Mannesmann Vdo Ag | Contact-making device |
US6203356B1 (en) * | 1999-03-02 | 2001-03-20 | International Business Machines Corporation | Device and method for protecting pins of an electrical component |
US6305949B1 (en) * | 1999-03-08 | 2001-10-23 | Fujitsu Takamisawa Component Limited | Press-fit pin, connector and printed circuit board-connected structure |
-
1998
- 1998-10-26 JP JP30439498A patent/JP3701481B2/en not_active Expired - Fee Related
-
1999
- 1999-07-02 US US09/347,219 patent/US6390831B2/en not_active Expired - Fee Related
- 1999-07-23 CN CNB991105370A patent/CN1173582C/en not_active Expired - Fee Related
-
2002
- 2002-03-11 US US10/095,328 patent/US20040235319A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4076356A (en) * | 1976-10-18 | 1978-02-28 | Bell Telephone Laboratories, Incorporated | Interconnection pin for multilayer printed circuit boards |
US4992054A (en) * | 1987-07-28 | 1991-02-12 | Societe Francaise Metallo S.A. | Connector with a retractable base plate to protect its contact outlets |
US4828514A (en) * | 1988-01-21 | 1989-05-09 | Gte Products Corporation | Electrical connector with compliant section |
US4883429A (en) * | 1988-02-03 | 1989-11-28 | Japan Aviation Electronics Industry, Limited | Electronic device packaging structure |
US5181855A (en) * | 1991-10-03 | 1993-01-26 | Itt Corporation | Simplified contact connector system |
US5348488A (en) * | 1993-04-09 | 1994-09-20 | The Whitaker Corporation | Electrical connector with board-mounting alignment system |
US5522730A (en) * | 1993-07-01 | 1996-06-04 | The Whitaker Corporation | Electrical pin field |
US5761050A (en) * | 1996-08-23 | 1998-06-02 | Cts Corporation | Deformable pin connector for multiple PC boards |
US6171133B1 (en) * | 1998-08-06 | 2001-01-09 | Mannesmann Vdo Ag | Contact-making device |
US6203356B1 (en) * | 1999-03-02 | 2001-03-20 | International Business Machines Corporation | Device and method for protecting pins of an electrical component |
US6305949B1 (en) * | 1999-03-08 | 2001-10-23 | Fujitsu Takamisawa Component Limited | Press-fit pin, connector and printed circuit board-connected structure |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006000959A1 (en) * | 2006-01-07 | 2007-07-12 | Leopold Kostal Gmbh & Co. Kg | Electrical device for motor vehicle, has pressing pin that is pressed with end section into switch carrier to establish electrical connection, and another end section of pin is pressed into another carrier to establish connection |
US20070281504A1 (en) * | 2006-05-30 | 2007-12-06 | Makoto Aoki | Connector system, packaging structure, and electronic device using the same |
US7491086B2 (en) * | 2006-05-30 | 2009-02-17 | Kabushiki Kaisha Toshiba | Connector system, packaging structure, and electronic device using the same |
US20110050052A1 (en) * | 2009-09-01 | 2011-03-03 | Emerson Network Power, Energy Systems, North America, Inc. | Telecommunications Enclosures |
WO2011028211A1 (en) * | 2009-09-01 | 2011-03-10 | Emerson Network Power, Energy Systems, North America, Inc. | Telecommunications enclosures |
CN102754536A (en) * | 2009-09-01 | 2012-10-24 | 艾默生网络能源系统北美公司 | Telecommunications enclosures |
US8403431B2 (en) | 2009-09-01 | 2013-03-26 | Emerson Network Power, Energy Systems, North America, Inc. | Telecommunications enclosures |
Also Published As
Publication number | Publication date |
---|---|
CN1173582C (en) | 2004-10-27 |
US6390831B2 (en) | 2002-05-21 |
CN1259832A (en) | 2000-07-12 |
JP2000134646A (en) | 2000-05-12 |
JP3701481B2 (en) | 2005-09-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6390831B2 (en) | Shelf-type telecommunications device including main and sub back wired boards connected by relay connectors | |
US6129592A (en) | Connector assembly having terminal modules | |
CA1226058A (en) | Main distributing frame board for an electronic switching system | |
US7101188B1 (en) | Electrical edge connector adaptor | |
US4968260A (en) | Bix block adapter | |
US5484295A (en) | Low profile compression electrical connector | |
US5595505A (en) | Electrical connector for conductive leads | |
US6699072B1 (en) | Cable assembly | |
US4976628A (en) | Modules for cable assemblies | |
US4490775A (en) | Universal programmable interface | |
US4192570A (en) | Insulated electrical conductor termination construction | |
US5967803A (en) | Card connector | |
JPH09505435A (en) | Right angle electrical connector and member for inserting it | |
US4863393A (en) | Modular jack assembly with improved bridging arrangement | |
US20040077220A1 (en) | High density patching system | |
WO1998031075B1 (en) | High density connector arrangement for a circuit board module | |
US6074220A (en) | Direct circuit to circuit stored energy connector | |
US6447305B1 (en) | Circuit to printed circuit board stored energy connector | |
US4012096A (en) | Telephone connector block apparatus | |
US10530081B1 (en) | Dual connector assembly for a circuit board | |
CN1159665A (en) | Electric plug-in assembly mountable on thin cross section | |
US4099826A (en) | Feed-through terminal block | |
CA2021122C (en) | Electrical connector for connecting heat seal film to a printed wiring board | |
US3743890A (en) | Diode matrix card assembly with conductive elastomeric material connectors | |
JPS5816311B2 (en) | Komid Connector Plug Assembly |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |