JPS6355267B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a 4-wire monitor system, and particularly to a 4-wire monitoring system in an automatic switching system that connects directional communication paths of 4-wire trunk lines to each other through a 2-wire main communication path network to perform 4-wire relay. Regarding monitoring method.

At commercial automatic switchboards and the like, calls on trunk lines may be monitored from a monitoring console or the like for the purpose of call auditing or testing. In particular, when monitoring a four-wire trunk line, it is necessary to simultaneously monitor two-wire communication paths for each direction, that is, both the incoming communication path and the outgoing communication path.

FIG. 1 is a diagram showing an example of a conventional four-wire monitor system. In Fig. 1, the 4-wire trunk line T1 to the 4-wire trunk line T housed in the automatic exchange
A relay call to 2 occurs, and the 2-wire main channel network
A 4-wire relay connection is made via NW. The incoming communication path II of the 4-wire trunk line T1 is from the terminal A of the incoming trunk ICT, via the 2-wire connection path 1 in the main communication path network NW, and via the terminal D of the outgoing trunk OGT 4.
Connected to the outgoing communication path OO of the wire trunk line T2,
In addition, the incoming communication path OI of the 4-wire trunk line T2 is connected to the terminal C of the outgoing trunk OGT, via the 2-wire connection path 2 in the main communication path network NW, and then via the 4-wire relay via terminal B of the incoming trunk ICT. It is connected to the outgoing communication path IO of line T1. Therefore, the four-wire trunk lines T1 and T2 are connected by a pair of two-wire connecting paths 1 and 2 in the main communication network NW. Now monitor calls using the 4-wire relay connection OBSD
In order to monitor from the monitor console OBSD, by performing an operation to specify and connect the outgoing trunk OGT that is connected via 4-wire relay on the monitor console OBSD, the communication path E and F and the outgoing communication path of the 4-wire trunk line T2
OO and incoming communication path OI are connected and implemented.

As is clear from the above explanation, in the conventional 4-wire monitor system, all 4-wire relay lines to be monitored are linked from the monitoring console OBSD.
In large-scale exchanges that accommodate dozens of trunk lines, the monitoring link OBSL also becomes large, which impairs economic efficiency.

An object of the present invention is to eliminate the drawbacks of the conventional 4-wire monitor system as described above, and to realize a 4-wire monitor system that does not impair economic efficiency even in large-scale exchanges with many trunk lines.

The purpose of this is to connect two incoming communication paths of the 4-wire trunk line connected to the 4-wire trunk incoming trunk and two outgoing communication paths of the 4-wire trunk line connected to the 4-wire trunk outgoing trunk. The incoming communication path of the 4-wire trunk line connected to the outgoing trunk and the outgoing communication path of the 4-wire trunk line connected to the incoming trunk are connected by a wire main communication path network. By connecting through the 2-wire main communication path network, monitoring is performed in an automatic exchange that performs 4-wire relay by connecting directional 2-wire communication paths of the 4-wire trunk line through the 2-wire main communication path network. When a console monitors a 4-wire relay call being made between the 4-wire trunk lines, the automatic switchboard determines whether the outgoing trunk is the Identify the 2-wire connection path being used for 4-wire relay in the main communication path network, and connect the communication path of the monitor console, the incoming communication path of the 4-wire trunk line connected to the incoming trunk, and the outgoing communication path of the 4-wire trunk connected to the incoming trunk. This is achieved by connecting the incoming communication paths of the four-wire trunk lines connected to the trunks within the main communication path network by respective two-wire interrupt connections.

An embodiment of the present invention will be described below with reference to FIG. FIG. 2 is a diagram of a four-wire monitor system according to an embodiment of the present invention. In FIG. 2, 4-wire trunk lines T1 and T2 are connected to a pair of 2-wire main communication network NW accommodated via incoming trunk ICT and outgoing trunk OGT, as in FIG. 1. A four-wire relay connection is made by two-wire connection paths 1 and 2. Monitoring communication paths E and F of the monitoring console OBSD that monitors these relay lines
is connected to the two-wire main channel network NW, and as shown in FIG. 1, a dedicated monitoring link OBSL is not provided. Now, in order for the monitoring console OBSD to monitor the 4-wire relay call taking place between the aforementioned 4-wire trunk lines T1 and T2, specify the connection to the outgoing trunk OGT for the 4-wire trunk line T2 on the monitoring console OBSL. When this operation is performed, the automatic switch identifies the two-wire connection paths 1 and 2 that the outgoing trunk OGT is using for four-wire relay in the main communication path network NW, and connects the communication path E of the monitoring console OBSD.
and F to set two-wire interrupt connections 3 and 4 for the connections 1 and 2 in the main communication network NW.

Therefore, from the monitoring console OBSD, the 4-wire relay line T1
Calls sent from the incoming path II of the 4-wire trunk T2 can be monitored via the two-wire interrupt connection 3, and calls sent from the incoming path OI of the four-wire trunk T2 can be monitored via the two-wire interrupt connection path 3.
It can be monitored via the wire interrupt connection 4.

As is clear from the above explanation, according to this embodiment, the monitor for the 4-wire relay connection from the monitoring console OBSD is connected to a pair of 2 wires provided in the main channel network NW.
This is done via a wired interrupt connection path, and there is no need to provide a dedicated monitoring link OBSL. By accommodating the monitoring console OBSD, automatic switchboards, especially main channel networks
The increase in equipment on the NW is extremely small. Therefore, even if the number of trunk lines to be monitored from the monitoring console OBSD increases, it will have almost no economic impact on the automatic switching system.

It should be noted that FIG. 2 is merely one embodiment of the present invention, and the present invention is not limited to monitoring from a monitoring console, for example, and the present invention can also be implemented when monitoring is performed from a location other than a monitoring console, such as a relay stand. The effect of is unchanged.

As described above, according to the present invention, by simply setting a pair of 2-wire interrupt connection paths within the 2-wire main communication path network of an automatic exchange, 4-wire relay calls can be made via the main communication path network. can be monitored, and a 4-wire monitoring system that has little impact on economic efficiency can be realized even in large-scale exchanges that accommodate a large number of trunk lines.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of a conventional four-wire monitor system, and FIG. 2 is a diagram of a four-wire monitor system according to an embodiment of the present invention. In the figure, NW...main channel network, T1, T2
... 4-wire trunk line, II, OI ... Inbound communication path,
IO, OO...outgoing communication path, ICT...incoming trunk, OGT...outgoing trunk, OBSD...monitoring console,
OBSL...Monitoring link, 1, 2...2-wire connection path, 3, 4...2-wire interrupt connection path.

Claims (1)

[Claims] 1. Incoming communication path of the 4-wire trunk line connected to the 4-wire trunk incoming trunk and outgoing communication path of the 4-wire trunk line connected to the 4-wire trunk outgoing trunk road 2
The incoming communication path of the 4-wire trunk line connected to the outgoing trunk and the outgoing communication path of the 4-wire trunk line connected to the incoming trunk are connected by a wire main communication path network. By connecting with the 2-wire main communication path network, two 2-wire communication paths for each direction of the 4-wire relay line can be connected.
In an automatic exchange that connects through a wire main communication line network and performs 4-wire relay, when the monitoring console monitors the 4-wire relay call being made between the 4-wire relay lines, input from the monitoring console is performed. Based on the designation of the outgoing trunk, the automatic switch identifies a two-wire connection path that the outgoing trunk is using for four-wire relay in the main communication path network, and connects the outgoing trunk to the communication path of the monitoring console; The incoming communication path of the 4-wire trunk line connected to the incoming trunk and the incoming communication path of the 4-wire trunk line connected to the outgoing trunk are connected to the main communication path by a 2-wire interrupt connection path, respectively. A 4-wire monitor system that is characterized by connection within the network.