CN2807641Y

CN2807641Y - Unsymmetrical digital user loop separator plate module

Info

Publication number: CN2807641Y
Application number: CN 200520062148
Authority: CN
Inventors: 张敏华; 刘波
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2005-07-26
Filing date: 2005-07-26
Publication date: 2006-08-16
Anticipated expiration: 2015-07-26

Abstract

The utility model relates to an unsymmetrical digital user loop separator plate module which comprises an over-current over-pressure protective module, a low pass filter module and a connector module, wherein the low pass filter module is composed of a two-stage transformer and peripheral devices. The connector module serves as an interface connecting user's signal, ADSL signal and PSTN signal. The unsymmetrical digital user loop separator plate module is characterized in that the connector module adopts a double-layer high-density connector. The utility model improves the line output density of unit space, reduces the product cost, and improves the reliability of a trunk cable. The phenomenon of business interruption caused by the unreliable contact of the inside of the cable in the process of actual device operation can be efficiently avoided. The assembly performance of the cable is improved, and the utility model is more conveniently inserted and pulled when the unsymmetrical digital user loop separator plate module is installed and maintained.

Description

A kind of ADSL (Asymmetric Digital Subscriber Line) separator board module

Technical field

The utility model relates to a kind of separator board module, is specifically related to a kind of separator board module that is applied to adsl equipment.

Background technology

ADSL (Asymmetric Digital Subscriber Line) (ADSL) is a kind of technology of using existing copper twisted pair cable transmitting high speed data in the local loop.The ADSL technology has been subjected to extensive concern.Engineers is all over the world carrying work on by candle-light so that ADSL is connected in the network at present.Simultaneously, the designer is also making great efforts the new broadband network equipment of exploitation, so that make the end user can enjoy the ADSL service early.

The ADSL connecting system relies on existing plain old telephone copper cable twisted-pair feeder, enough bandwidth capacitys are provided, neither influence the narrowband voice business, support broadband data services such as video request program, video conferencing, online high speed surfing, ecommerce again, the most economical existing communication net resource that effectively utilizes, can realize smoothly to full optical networking transition,, become a brand-new point of economic increase of telecommunications industry for operator and ISP create infinite commercial opportunities.

Present adsl equipment is made up of a few bulk function veneers, comprises control power board, backboard, line interface base, separator board and upper connective plate.The control power board is the exchcange core and the higher management of entire equipment.Backboard provides the connection of the signal bus of each groove position.Line interface base mainly provides multi-user ADSL user interface.Separator board adopts the method for low-pass filtering, from phone and and the data mixing signal isolate telephone signal and ADSL modulation signal, give PSTN exchanger user interface and ADSL broadband interface respectively, and this plate circuit provided the function of overcurrent, overvoltage protection.Upper connective plate mainly is to finish converging of broadband services.

On adsl equipment, use cable through regular meeting and come the transmission trunking signal.When processing and manufacturing, generally adopt certain processing technique, the end of connector and cable is coupled together.When in use, connector one end links to each other with equipment, and perhaps connector directly patches on pcb board, and the other end of cable is with digital distribution frame or directly link to each other with other equipment, thus realize signal transmission and switching.

For junction cable, require processing technology good, installability is good, and along with the raising of product integrated level, also more and more higher for the density requirements of junction cable.In addition, connector overall dimension must meet the specific requirement of product.

For adsl equipment, (U is a mile to 9U, and 1U=44.45mm) outlet of the veneer of height employing front panel is a kind of very general way.One road repeating signal needs a pair of differential lines to realize, like this, 32 road repeating signals need 32 pairs of differential lines to realize, corresponding connector also needs at least 64 pin positions.Such as, on the dsl device of 9U height, adopt the curved formula PCB welding of 1.27 common spacings SCSI socket to connect ADSL or PSTN subscriber signal.This common way and weaknesses analysis thereof are as follows:

Adopt common SCSI socket, as double pin or the curved formula PCB welding of four row's pins, 1.27 spacings socket.ADSL signal, PSTN signal all are differential signals, the just directly outlet over the ground one to one of general double socket; If the socket of four row's pins is with regard to two pairs two outlets over the ground.The fewer socket of this row's number, it is also fewer to stoop row's number of coming veneer, but the length of socket is bigger, and for the front panel of regular length, integrated level is lower like this, is unfavorable for the global design of system.On the veneer of 9U height, if design 64 road DSL separator veneers, need the differential lines of 3 kinds of functions so, be respectively veneer subscribers feeder, ADSL holding wire, PSTN holding wire.Every kind of line need go out 64 pairs, needs 192 pairs of differential lines altogether.Adopt general SCSI socket noted earlier, the height of 9U fails to lay down so many sockets at all.Therefore, adopting general SCSI socket is a fatal bottleneck for the raising of 9U board integration.

The utility model content

The technical problems to be solved in the utility model provides a kind of new ADSL separator board module, overcomes the existing low problem of connector integrated level that is used for junction cable, can improve the integrated level of veneer outlet, and installability is good, the connection reliability height.

The technical solution of the utility model is: ADSL separator board module comprises overcurrent and overvoltage protective module, low pass filter blocks and connector modules; described low pass filter blocks is made of two-stage transformer and peripheral components; described connector modules is as the interface that connects subscriber signal, ADSL signal, PSTN signal; it is characterized in that described connector modules adopts double-deck high-density connector.

The high high-density connector of described bilayer comprises that one is that female connectors and one are public connector.

Described female connectors patches on pcb board; Described public connector is a cable type, is connected with cable.

Described female connectors comprises insulating body, is arranged at intrinsic several conducting terminals, metal shell, be fixedly arranged on the clasp on the pcb board; Described public connector comprises insulating body, is arranged at intrinsic several conducting terminals, covers clamshell up and down, with the screw rod of female connectors secure engagement.

Described public connector goes out the two rows plastic sheet, every plastic removal tablet be close to up and down two row conducting terminals; Female connectors goes out up and down two fillet shape dead slots, respectively being embedded with up and down and the corresponding conducting terminal of the conducting terminal of public connector of each dead slot.

Described connector can be 64 core connectors of output 32 road differential signals, can be to comprise 6 64PIN connectors or 3 128PIN connectors.

The utility model has improved the line density that of unit space, has reduced the cost of product; Improved the reliability of junction cable, can avoid effectively equipment in actual moving process owing to the unreliable service disconnection phenomenon that occurs of the inner contact of cable; Improved the assembling capacity of cable, plug is more convenient in installation and maintenance.

Description of drawings

Fig. 1 is the block diagram of the separator board module of adsl equipment;

Fig. 2 is the public connector structural representation of the connector modules used of the utility model;

Fig. 3 is the female connectors structural representation of the connector modules used of the utility model.

Embodiment

As shown in Figure 1, the utility model separator board module is made up of overcurrent and overvoltage protective module, low pass filter blocks, connector modules.Wherein, overcurrent and overvoltage protective module mainly is to wait by some over-current protection devices commonly used of serial connection on holding wire such as semistor to realize overcurrent protection function, realizes over-voltage protecting function by adopting over the ground and connect some over-voltage protectors commonly used.Low pass filter blocks can add simple peripheral components by two-stage transformer and realize the filtering high-frequency signal.Connector modules comprises three class signals: subscriber signal, ADSL signal and PSTN signal.This three classes signal all is the two-way signaling of transmitting-receiving, and each road signal all is a pair of differential signal, and the signal on the subscribers feeder is the mixed signal of phone and ADSL data.Mixed signal is at first passed through over-current overvoltage protector spare, is divided into two-way then, and one the road to broadband A SL part, the low pass filter of another road through constituting by two-stage transformer and peripheral components, and the filtering high-frequency signal outputs to the user interface of PSTN switch.

The operation principle of separator board module is very simple, but inserts influence to plain old telephone service in order to reduce ADSL, and all there are strict requirements to separator index such as Insertion Loss, reflection loss, time delay etc. for telecommunication department.

The utility model separator board module adopts the front panel outlet, and its main feature has been to use a kind of double-deck high-density connector.This connector can comprise a socket (being female connectors) and a plug (being public connector), constitutes 64 core connectors of exportable 32 road differential signals.This connection device body structure is seen Fig. 2, shown in Figure 3.The female connectors of this electric connector is used and is patched on pcb board, and public connector is a cable type, is connected with cable.

Fig. 2 is the public connector structural representation, this public connector contains an insulating body, is arranged at intrinsic several conducting terminals, covers clamshell up and down, with the screw rod of female connectors secure engagement.

Fig. 3 is the female connectors structural representation, and this female connectors contains an insulating body, is arranged at intrinsic several conducting terminals, metal shell, be fixedly arranged on the clasp on the pcb board.

This connector adopts double-decker, and the interface of connector male head goes out the two rows plastic sheet, every plastic removal tablet be close to two row's metallic conduction terminals, i.e. outlet point, 64 pins altogether up and down.Similarly, the connector female goes out up and down two fillet shape dead slots, each dead slot respectively be embedded with metallic conduction terminal, 64 pins altogether up and down.As long as a cable just can go out 32 pairs of repeating signals.The general in the past CSCI socket that goes out 32 pairs of signals is long, has dwindled length greatly at present on profile, and it is less to take up room, and can improve the integrated level of veneer greatly, thereby improves the line density that of equipment.

For 64 road ADSL separator boards, need go out subscriber signal, ADSL signal, PSTN signal each 64 the tunnel, need 192 pairs of differential signals so altogether, promptly take 384PIN altogether.On the separator board module, use this bilayer connector, make on the panel of 9U height, can go out 6 such 64PIN connectors or 3 128PIN connectors, thereby solved the outlet problem of 64 road ADSL separator boards.Can improve the line density that of unit space, reduce the cost of product; Improved the reliability of junction cable, can avoid effectively equipment in actual moving process owing to the unreliable service disconnection phenomenon that occurs of the inner contact of cable; Improved the assembling capacity of cable, plug is more convenient in installation and maintenance.

Claims

1, a kind of ADSL (Asymmetric Digital Subscriber Line) separator board module; comprise overcurrent and overvoltage protective module, low pass filter blocks and connector modules; described low pass filter blocks is made of two-stage transformer and peripheral components; described connector modules is as the interface that connects subscriber signal, ADSL signal, PSTN signal; it is characterized in that described connector modules adopts double-deck high-density connector.

2, the described ADSL (Asymmetric Digital Subscriber Line) separator board of claim 1 module is characterized in that, described double-deck high-density connector comprises a female connectors and a public connector.

3, the described ADSL (Asymmetric Digital Subscriber Line) separator board of claim 2 module is characterized in that, described female connectors patches on pcb board; Described public connector is a cable type, is connected with cable.

4, claim 2 or 3 described ADSL (Asymmetric Digital Subscriber Line) separator board modules is characterized in that, described female connectors comprises insulating body, is arranged at intrinsic several conducting terminals, metal shell, be fixedly arranged on the clasp on the pcb board; Described public connector comprises insulating body, is arranged at intrinsic several conducting terminals, covers clamshell up and down, with the screw rod of female connectors secure engagement.

5, the described ADSL (Asymmetric Digital Subscriber Line) separator board of claim 4 module is characterized in that, described public connector goes out the two rows plastic sheet, every plastic removal tablet be close to up and down two row conducting terminals; Female connectors goes out up and down two fillet shape dead slots, respectively being embedded with up and down and the corresponding conducting terminal of the conducting terminal of public connector of each dead slot.

6, claim 2 or 3 described ADSL (Asymmetric Digital Subscriber Line) separator board modules is characterized in that, described connector is 64 core connectors of exportable 32 road differential signals.

7, the described ADSL (Asymmetric Digital Subscriber Line) separator board of claim 1 module is characterized in that, described connector modules comprises 6 64PIN connectors or 3 128PIN connectors.