JP2919068B2 - Line failure collection method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is used for a digital line fault collection system of a digital switching system.

The present invention is used particularly for a line fault information collection method of the transmission side device or the like.

〔Overview〕

The present invention relates to a line fault collection system in a digital switching system having a transmission side device connected to a digital switch via a call highway, wherein a maintenance highway is provided separately from the call highway after detecting and editing line fault information. It is possible to collect detailed fault information by making it possible for the exchange side to collect the information via the Internet.

[Conventional technology]

FIG. 2 is a block diagram showing an example of a line fault collection system in a conventional digital switching system.

The transmission side device 10 and the digital switch 20 are connected by a communication highway 61, and the digital switch 20 is connected to a fault processing device 30 including a call processing processor or a fault processing processor.

For example, in the case of a conventional digital switching system, the time slot 33 of the digital highway on the transmission line side is used.
Insert the transmit-not-ready information (hereinafter referred to as TNR information) into the time slots 33 and 99 that are not used for calls on the switching digital call highway,
The failure processing device 30 has been notified.

[Problems to be solved by the invention]

The line fault collection method in this conventional digital switching system employs a method of notifying fault information of the transmission-side digital highway to the call processing processor or fault processing processor via the switching-side digital communication highway. There are disadvantages that all types of equipment cannot be obtained in many types, and only one TNR bit is allocated to the line, and there is no means for notifying the failure information when a failure occurs on the switching digital communication highway.

The object of the present invention is to eliminate the disadvantages mentioned above,
An object of the present invention is to provide a failure information collection method capable of collecting detailed failure information.

[Means for solving the problem]

The present invention relates to a line fault collection system in a digital switching system including a digital switch and a communication highway connecting the transmission side device outside the system and the digital switch, wherein a primary line is provided between the transmission side device and the digital switch. A digital highway terminator connected by a group transmission line drop line, detecting a line failure, transmitting after editing, a maintenance highway transmitting failure information transmitted from the digital highway termination device, and a maintenance highway transmitted by the maintenance highway. And a system monitoring and control device that collects fault information.

Also, the present invention provides a digital highway terminating device, comprising: a highway interface unit for interfacing the transmission side device with the digital switch and detecting the fault information; and a parallel bus for editing the detected fault information. A fault information editing unit, a fault information transmitting / receiving unit that receives the output fault information and outputs the fault information to the maintenance highway according to a clock signal input thereto, and a clock supply unit that supplies a clock signal to the fault information transmitting / receiving unit The system monitoring and control device may include a failure information reception control unit that collects failure information from the maintenance highway, and a failure information reading unit that reads out the collected failure information.

In the present invention, the failure information may correspond to a forward highway failure due to a primary transmission line drop line from the transmission side device, a backward highway failure due to a primary transmission line drop line, and a handling group of a primary transmission line. , A backward failure corresponding to the handling group of the primary transmission line, a multi-frame synchronization failure of the primary transmission line, and a failure corresponding to the transmission channel.

[Action]

The digital highway terminating device detects and edits various types of line fault information, and sends the information to a system monitoring control device that collects fault information via a maintenance highway provided separately from the call highway.

Therefore, required fault information can be sufficiently collected regardless of the number of empty time slots.

The collected failure information includes a forward highway failure due to a primary transmission line drop line from a transmission side device, a backward highway failure due to a primary transmission line drop line, and a forwarding group corresponding to a handling group of a primary transmission line. It can include a side failure, a backward failure corresponding to the handling group of the primary transmission line, a multi-frame synchronization failure of the primary transmission line, and a failure corresponding to the transmission channel.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention.

In this embodiment, the transmission side device 10 and the digital switch 20
And a line fault collection method in a digital switching system having a communication highway 61 connecting the transmission side device 10 and the digital switch 20. A digital highway terminating device 40 that is connected to a primary transmission line drop line 60 and detects and edits a line fault and sends the edited data; a maintenance highway 62 that transmits fault information sent from the digital highway terminating device 40; System monitoring and control device that collects fault information transmitted by highway 62
With 50.

The digital highway terminating device 40 interfaces the transmission side device 10 and the digital switch 20 and detects the fault information. The highway interface unit 41 edits the detected fault information and outputs the edited fault information to the parallel bus 45. And a fault information transmitting / receiving unit 43 which receives the output fault information and outputs it to the maintenance highway 62 in accordance with the input clock signal 46a.
The fault information transmitting / receiving unit 43 includes a clock supply unit 44 that supplies a clock signal 46a with a clock signal 46 input from the outside. The system monitoring and control device 50 collects the fault information from the maintenance highway 62. It includes a failure information reception control unit 51 to be performed, and a failure information reading unit 52 including a processor that reads the collected failure information.

 Next, the operation of the present embodiment will be described.

The various types of fault information received on the primary transmission line drop line 60 are synchronized with the internal system clock by the highway interface unit 41 and transmitted to the fault information editing unit 42 serially. The failure information editing unit 42, based on the received various types of failure information, forward and backward highway failure information (hereinafter referred to as PALM) by the primary transmission line drop line 60, and forward and back corresponding to the handling group of the primary transmission line. Word side failure information (HGALM
That. ), And failure information (TN
R) is extracted, edited into the maintenance highway format of the system monitoring control device 50, and transmitted to the fault information transmitting / receiving unit 43 via the parallel bus 45.

The failure information transmitting / receiving unit 43 converts various types of failure information received via the parallel bus 45 into serial data together with the failure information of the maintenance highway 62 based on the clock signal 46a from the clock supply unit 44, and transmits the converted information via the maintenance highway 62. And sends it to the failure information reception control unit 51. The maintenance highway information received by the failure information reception control unit 51 is read out and output as failure information 53 from the failure information reading unit 52 by software control.

According to the present embodiment, for example, in the case of the digital switching system of the present invention, it is possible to read 264 bits of detailed failure information such as PALM, HGALM and TNR information from 128 bits of TNR information which is conventional failure information. become.

〔The invention's effect〕

As described above, according to the present invention, in a digital switching system, a digital highway terminating device is provided between a digital switch and a transmission side device, and each fault information from the transmission side device is physically communicated with the switching side digital communication highway. By transmitting the information to the system monitoring and control apparatus through different maintenance highways, it is possible to read necessary detailed fault information.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 2 is a block diagram showing a conventional example. 10 ... Transmission side device, 20 ... Digital switch, 30 ...
Fault handling device, 40 ... Digital highway termination device,
41 highway interface section, 42 fault information editing section, 43 fault information transmitting / receiving section, 44 clock supply section, 45 parallel bus, 46, 46a clock signal, 5
0: System monitoring control device, 51: Failure information reception control unit, 52: Failure information reading unit, 53: Failure information, 60:
Primary transmission line drop line, 61: Call highway, 62: Maintenance highway.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Junhiro Yamamoto 2-3-2 Nishishinjuku, Shinjuku-ku, Tokyo International Telegraph and Telephone Corporation (72) Inventor Yukio Ueno 2-3-3 Nishishinjuku, Shinjuku-ku, Tokyo No. 2 International Telegraph and Telephone Corporation (58) Field surveyed (Int. Cl. ⁶ , DB name) H04M 3/22

Claims (3)

(57) [Claims] A line fault collection method in a digital switching system comprising a digital switch and a communication highway connecting the transmission side device outside the system and the digital switch, wherein a line failure collection system is provided between the transmission side device and the digital switch. A digital highway terminator connected by a primary transmission line drop line, detecting a line failure, transmitting after editing, a maintenance highway transmitting failure information transmitted from the digital highway termination device, and transmitted by the maintenance highway A line monitoring system for collecting fault information to be collected. 2. The digital highway terminating device includes a highway interface section for interfacing the transmission side device with the digital switch and detecting the fault information, and edits the detected fault information to a parallel bus. A fault information editing unit to output, and a fault information transmitting / receiving unit that receives the output fault information and outputs it to the maintenance highway according to a clock signal input thereto,
A clock supply unit that supplies a clock signal to the failure information transmission / reception unit, wherein the system monitoring and control device includes a failure information reception control unit that collects failure information from the maintenance highway, and the collected failure information. The line fault collection method according to claim 1, further comprising: a fault information reading unit for reading. 3. The failure information includes a forward highway failure due to a primary transmission line drop line from the transmission side device,
Backward highway failure due to primary group transmission line drop line, forward side failure corresponding to primary group transmission line handling group, backward side failure corresponding to primary group transmission line handling group, multi-frame synchronization failure of primary group transmission line, 3. The line fault collecting method according to claim 1, further comprising a fault corresponding to a transmission line channel.