CN2416672Y

CN2416672Y - Long-distance monitoring distributing exchanger

Info

Publication number: CN2416672Y
Application number: CN 99251514
Authority: CN
Inventors: 罗七华; 韩继军
Original assignee: Dongfang Telecommunication Science & Technology Co Ltd Huizhou City
Current assignee: Dongfang Telecommunication Science & Technology Co Ltd Huizhou City
Priority date: 1999-10-22
Filing date: 1999-10-22
Publication date: 2001-01-24
Anticipated expiration: 2009-10-22

Abstract

The utility model relates to a long-distance monitoring distributing exchanger, which comprises a housing, a main circuit board and auxiliary circuit boards, wherein a ringing signal is judged and confirmed by a ringing receiving circuit and a processor circuit on the main circuit board, and is selected by a processor and a decoder to drive any group of four groups of the auxiliary circuit boards so as to switch on any terminal equipment connected to the output terminal of the auxiliary circuit boards to communicate; any output terminal of the auxiliary circuit board is formed via a corresponding relay and is connected with a communication interface; the output terminal of the auxiliary circuit boards can be also connected with the main circuit board to form secondary connection communication; the quantity of the parallel connection and the stage number of the secondary connection can be decided as required. The utility model is used for the long-distance monitoring of a plurality of terminals by a telephone line.

Description

Remote monitoring separated time interchanger

The utility model belongs to digital communication network equipment, particularly a kind of remote monitoring separated time interchanger.

At present, digital communication network has advanced local telephone communication net and internet.Local network is to utilize larger switch to realize the communication of terminal use to the terminal use, internet is to utilize the MODEN computer of will surfing the Net to connect into a network, realize the digital communication of terminal use to the terminal use, use local network or internet expense bigger for the user among a small circle, when with the small switch of several families, utilize two-stage dialing to transfer once to tens families.

The purpose of this utility model is to provide a kind of and utilizes a pair of connection to realize a plurality of terminals are carried out the selectivity communication, and can utilize coding that a plurality of remote monitoring separated time interchangers are carried out and connect or more terminal use is carried out the selectivity communication from connecing to enlarge, realize that administrative department utilizes a local telephone, just can carry out the remote monitoring separated time interchanger of remote monitoring a plurality of terminal uses of section.

The utility model can be realized by following scheme, comprise shell, main circuit board, subbreadboard, after ring receiving circuit on the main circuit board and processor circuit are distinguished judgement with the bell signal of monitoring computer or other communication, by processor circuit control off-hook, command signal that monitoring computer sends or control signal, what export after filter circuit filtering is double-audio signal, this double-audio signal is demodulated to digital signal by receiving circuit, processor circuit is judged affirmation according to the coding of the code switch in control command signal and the processor circuit, can select to drive in four groups of secondary electronic circuit boards arbitrary group by junction block XIC by processor and decoder, cry and lead to the arbitrary terminal equipment that is connected on the subbreadboard output and carry out communication.

Switch coding circuit on the processor circuit, code clerk are provided with coding according to the coding rules when mounted, have only when the code clerk of the switch coding circuit of bell signal and setting matches, processor just enters operating state, drives subbreadboard work, selects different terminal passageway.The P point of junction block XIC is drawn S9, form with place S8 and meet communication port S8, S9, and connect another main circuit board and drive its subbreadboard work, and the quantity that connects can determine as required.

The output of subbreadboard still can connect other main circuit board and drive other subbreadboard work, composition is from connecting news, can select more terminal passageway to provide Communications service,, can decide as required from the level that connects to enlarge the monitoring range of remote terminal to terminal.

The utility model compared with prior art has following advantage: 1, can realize a plurality of user terminals are carried out the selectivity communication with a pair of existing local telephone communication line, can save communication resources, reduce network.2, the utilization coding carries out some separated time interchangers and connects news and from connecting to interrogate to expand the more users terminal is carried out communication.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a circuit structure block diagram of the present utility model;

Fig. 3 is circuit theory diagrams of the present utility model.

A step is described in detail when below in conjunction with drawings and Examples invention being done.

Referring to accompanying drawing, main circuit board 2 and subbreadboard 3 all are fixed on shell 1 the inside.

Among Fig. 2, bell signal is through S5, the S6 input, send control signal control relay JK adhesive by the back P36 mouth of ringing circuit 4 identifications by processor circuit 6, make separated time interchanger off-hook on connection, the control command signal that monitoring computer sends is through filter 5 and receiving circuit 8, double-audio signal is demodulated to digital signal, treated again device circuit 6 is judged and is confirmed, if the coding that the code switch of monitoring computer control command coding and processor circuit 6 sets matches, the P21 of processor～P24 pin can be selected in four groups of auxiliary lines 3 arbitrary group with decoder 9, selected one group of subbreadboard 3 also drives switching circuit on this auxiliary line 3 and controls the first to the 16 relay J K1～JK16 adhesive on the subbreadboard 3 respectively, like this at 16 terminal use P01 of subbreadboard 3 output terminations, G01～P16, the terminal use of P16 sets up digital channel logical with communication line with regard to monitored computer.

The P point of junction block XIC is drawn S9, form and connect communication port S8 with place S8, S9, and connect another main circuit board 2 and drive 3 work of its subbreadboard, the control command coding that sends when monitoring computer changes, be attempted by and connect communication port S8, judge behind the coding that the processor 6 of the main circuit board 2 on the S9 receives, when the coding that sets when the coding that receives and its autocoding switch is identical, processor circuit 6 in this motherboard circuit 2 just enters operating state, again can select in four group secondary circuit boards 3 arbitrary group with decoder 9 this moment, drive the switching circuit on the subbreadboard 3, control the first to the 16 relay J K1～JK16 adhesive on the subbreadboard 3 respectively, be connected on 16 output P01 of subbreadboard like this, G01～P16, terminal use on the G16 can monitored computer logical, set up digital channel with communication line, according to above-mentioned and connect mode, and meet communication port S8, on the S9, the quantity that can determine as required and connect.

If the output on subbreadboard 3, be that terminals P01, the G01～P16 of relay J KI～JKI6, the arbitrary end of G16 connect another separated time interchanger main circuit board 2 formation again from connecting news, the control command of monitoring computer or digital signal are directly by the output on the subbreadboard 3, connection can be decided from the level that connects as required from connecing the signal input part of main circuit board 2.When control command at different levels is finished, send on-hook signal by the processor 6 that is connected the main circuit board 2 on the telephone wire.Relay J K discharges, and communication is finished.

Claims

1, a kind of remote monitoring separated time interchanger, comprise shell (1), main circuit board (2), subbreadboard (3), it is characterized in that: after ring receiving circuit (4) on the main circuit board (2) and processor circuit (6) are distinguished judgement with the bell signal of monitoring computer or other communication, by processor circuit (6) control off-hook, command signal that monitoring computer sends or control signal, what export after filter circuit (5) filtering is double-audio signal, this double-audio signal is demodulated to digital signal by receiving circuit (8), processor circuit (6) is judged affirmation according to the coding of the code switch in control command signal and the processor circuit (6), can select to drive in four groups of secondary electronic circuit boards (3) arbitrary group by processor (6) and decoder (9), cry and lead to the arbitrary terminal equipment that is connected on subbreadboard (3) output and carry out communication.

2, remote monitoring separated time interchanger according to claim 1, it is characterized in that: the switch coding circuit on the processor circuit (6), code clerk when mounted, according to the coding rules coding is set, have only when the code clerk of the switch coding circuit of bell signal and setting matches, processor just enters operating state, the P point of junction block XIC is drawn S9, form and connect communication port S8, S9 with place S8, and connect another main circuit board (2) and drive its subbreadboard (3) work, and the quantity that connects can determine as required.

3, remote monitoring separated time interchanger according to claim 1 is characterized in that: the output of subbreadboard (3) still can connect other main circuit board (2) and drive other subbreadboard (3) work, forms from connecing communication port, selects more terminal passageway.