CN2370636Y

CN2370636Y - Circuit spare structure for program control exchanger user

Info

Publication number: CN2370636Y
Application number: CN 99235903
Authority: CN
Inventors: 雷海强; 芮柏林
Original assignee: Shenzhen Zte Corp
Current assignee: ZTE Corp
Priority date: 1999-04-30
Filing date: 1999-04-30
Publication date: 2000-03-22
Anticipated expiration: 2009-04-30

Abstract

The utility model relates to a circuit spare structure for a user of a program control exchanger, which comprises a user board set and a test board. The utility model is characterized in that a spare user board is additionally arranged in the user board set of a program control exchanger; user circuit testing internal lines in all user boards and the spare board are connected with a testing internal line of the test board by butt-joint after multiple connection; the testing external line of each user board is coupled in different user lines of the user plates, and the testing external line of the spare user board is coupled in the test board. When a user circuit is damaged, the user circuit enters the testing external line state by software, so that the user circuit can be replaced when the external line is communicated with the corresponding user circuit in the spare user board.

Description

Stored-program control exchange subscriber line circuit backup architecture

The utility model relates to SPC telephone exchange.

At present, most of SPC telephone exchange are not all to backing up with the subscriber line circuit in the plate, when a certain subscriber line circuit in user's plate or certain several subscriber line circuit break down, before maintenance subscriber line circuit or replacing user plate, the phone that is connected with out of order subscriber line circuit just can not normally use.For addressing this problem, the scheme that someone has proposed to utilize the subscriber line circuit on the test board in the stored-program control exchange to back up: damage but outside surveying under the normal situation of relay operation in subscriber line circuit, by software command the subscriber line circuit number that damages is joined and test board, make the subscriber line circuit work of the subscriber line circuit replace damaged on the test board, make the outer relay adhesive of survey on user's plate simultaneously, replace test board to survey outer phone.There is following shortcoming in backup to the subscriber line circuit of user's plate to utilize test board: 1, the test board subscriber line circuit backup number that can provide is less, a test board can only provide the backup of a subscriber line circuit, when the subscriber line circuit number that damages more for a long time, the subscriber line circuit of some damage still can not in time not enter normal operating conditions because of backup is not additional; 2, the subscriber line circuit on the test board is as the backup of the subscriber line circuit on user's plate, and the test function of test board can be affected.

The purpose of this utility model is to provide a kind of can overcome above-mentioned shortcoming, the SPC telephone exchange subscriber line circuit backup architecture that does not promptly influence the test board function and can provide a plurality of subscriber line circuits to back up.

Increase backup user plate in user's plate group that the purpose of this utility model is achieved in that in SPC telephone exchange, after surveying the interior lines multiple connection, subscriber line circuit in all user's plates and the backup user plate docks with the survey interior lines of test board, the survey outside line of each piece user plate is inserted the different user line that backs up in user's plate, and the survey outside line that will back up again in user's plate inserts test board.When a certain subscriber line circuit is damaged, make this subscriber line circuit enter the test external line state by software, make subscriber line circuit connection corresponding in outside line and the backup user plate can replace the subscriber line circuit work that damages.

Below in conjunction with drawings and Examples this utility model is described in detail.

Fig. 1 is common user card of program controlled switch group and test board syndeton schematic diagram.

Fig. 2 is user card of program controlled switch group in the utility model and test board, backup user board connecting structure schematic diagram.

Fig. 3 is the connection diagram of the subscriber line circuit in subscriber line circuit and the backup user plate in user's plate among the novel embodiment of this real user.

As shown in Figure 1, in common SPC telephone exchange, user's plate A1, A2, A3 ... the survey interior lines among the An and survey outside line be multiplexed to respectively survey internal bus R and survey external bus T after, insert the survey interior lines among the test board B and survey outside line.

As Fig. 2, in user's plate group, increase backup user plate C, user's plate A1, A2, A3 ... insert the survey interior lines of test board B after the survey interior lines multiple connection of the survey interior lines of An and backup user plate C.User's plate A1, A2, A3 ... the survey outside line in the subscriber line circuit among the An change into the different user line D1 that inserts respectively among the backup user plate C, D2, D3 ... Dn.Survey outside line Tc among the backup user plate C inserts the survey outside line in the test board.

An embodiment of the present utility model such as Fig. 3.If each client layer of certain stored-program control exchange comprises 16 user's plate A1, A2, ..., An (n=16), each piece user plate comprises 16 tunnel subscriber line circuit U1, U2, ..., U16, join a backup user plate for each client layer, the ratio that is the backup subscriber line circuit number in subscriber line circuit number and the backup user plate in user's plate is 16: 1, subscriber line circuit with the syndeton of backup subscriber line circuit is: user's plate Ai (i=1,2, ..., 16) after the survey outside line multiple connection in all subscriber line circuits in backup user plate in subscriber line circuit Di in the survey outside line dock, after the survey outside line multiple connection in all subscriber line circuits in the backup user plate, insert the survey outside line in the test board.After surveying the interior lines multiple connection, subscriber line circuit in all user's plates and the backup user plate docks with the survey interior lines of test board.Suppose a subscriber line circuit damage among a certain user's plate Ai, making this subscriber line circuit enter the outer state of survey by the control board in the same client layer makes outside line be connected with the backup subscriber line circuit, just can make the i subscriber line circuit of backup user plate substitute the subscriber line circuit work that has damaged.

The ratio of the subscriber line circuit number during this real user is novel and backup subscriber line circuit number also can be 8: 1 or 12: 1,16: 1,24: 1,32: 1 etc.

The ratio of subscriber line circuit number and backup subscriber line circuit number is that 8: 1 circuit connection structure is: two blocks of user's plates of backup in each client layer, after the survey outside line multiple connection of half subscriber line circuit in each piece user plate, dock with a subscriber line circuit in the backup user plate, after the survey outside line multiple connection in two blocks of backup user plates in all subscriber line circuits, insert the survey outside line in the test board.Dock with the survey interior lines of test board after the survey interior lines multiple connection in all user's plates and the backup user plate.

The ratio of subscriber line circuit number and backup subscriber line circuit number is that 32: 1 circuit connection structure is: user's plate of backup in per two client layers, after the survey outside line multiple connection of all subscriber line circuits in per two blocks of user's plates, dock with a subscriber line circuit in the backup user plate, after the survey outside line multiple connection in the backup user plate in all subscriber line circuits, insert the survey outside line in the test board.Dock with the survey interior lines of test board after the survey interior lines multiple connection in all user's plates and the backup user plate.

The subscriber line circuit number is other ratios with the ratio of backup subscriber line circuit number, and circuit connection structure can solve according to top same principle.

Utilize user's board back-up structure of the present utility model, when some subscriber line circuits in the switch break down, substitute because of the subscriber line circuit in the backup user plate is arranged, switch still can operate as normal.

Claims

1. stored-program control exchange subscriber line circuit backup architecture comprises: user's plate (A1, A2, A3 ..., An), test board (B) is characterized in that: it also comprises backup user's plate (C); Insert successively respectively after the survey outside line multiple connection in the subscriber line circuit in described user's plate on the different user line in described backup user's plate (C), the survey outside line of described backup user's plate (C) inserts in the survey outside line in the described test board (B).

2. the stored-program control exchange subscriber line circuit backup architecture in the claim 1 is characterized in that: the ratio of the backup subscriber line circuit number in the subscriber line circuit number in described user's plate and the described backup user plate is 16: 1.