JPH0463049A - Subscriber line carrier device - Google Patents

Abstract

PURPOSE:To perform connection without interposing the exchange of a private line, etc., by sending the identification number of a channel and an interruption number for a subscriber line on which a test or monitoring is desired to perform at a central station terminal side to a remote terminal side via a data link, and connecting a designated subscriber line to a port for test. CONSTITUTION:When the identification number of the channel provided with the subscriber line desiring to connect to a port for subscriber line test is designated by the external input device 1 of a central station terminal 2 and the connection is requested, the identification number of the channel and the interruption signal for the request of connection are sent to the channel control circuit 6 of a remote terminal 5 via the interface 3 of the central station terminal 2 and the data link 4. The channel control circuit 6 sends a channel control signal to a relay 9 so as to connect the designated subscriber line 10 to the port 12 for test for a channel board 7 provided with the subscriber line desiring to connect to the port for test based on the identification number. The channel board 7 receiving the channel control signal switches the relay 9, and connects the subscriber line 10 to the port 11 for test.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a subscriber line carrier, and more particularly to a subscriber line carrier having a subscriber line monitoring or testing function.

[Conventional technology]

Conventionally, when testing a subscriber line, this type of subscriber line carrier equipment selects a channel at the exchange in order to connect the tester to the subscriber line, applies an initial voltage to the exchange, and then connects the test cord to the subscriber line. The tester is connected to the subscriber line by sending the signal to a channel in the remote terminal.

[Problem to be solved by the invention]

In the conventional subscriber line carrier device described above, in order to connect a tester to a subscriber line, a channel is selected in the exchange, an initial voltage is applied to the exchange, and a test code is sent to the channel in the remote terminal. As a result, the tester is connected to the subscriber line, which has the disadvantage that a subscriber line such as a dedicated line that does not go through an exchange cannot be connected to the tester.

[Means to solve the problem]

The subscriber line transport device of the present invention includes a central office terminal that sends to a data link an identification number of a subscriber line designated by an operation input and an interrupt signal requesting connection of the subscriber line to a test port; and a remote terminal for connecting the subscriber line selected by a switch to the test boat in response to the identification number and interrupt signal received from the link.

〔Example〕

Next, the present invention will be explained with reference to the drawings. FIG. 1 is a block diagram of one embodiment of the present invention.

This embodiment includes an external input device 1 that outputs the identification number of the subscriber line 10 and an interrupt signal for connecting the subscriber line 10 to the test boat 11 based on an operation input, and a data link 4 that outputs the identification number and the interrupt signal. a central office terminal 2 having an interface 3 for transmitting data to a central office terminal 2; a channel control circuit 6 for controlling channel boards 7, 7a, 7b corresponding to identification numbers and interrupt signals received from a data link 4; identification signals and interrupt signals; and a remote terminal 5 having an interface 8 which connects the subscriber lines 10, 10a, 10b specified by the test boat 11 with the contacts 9a of the relay 9.

In this way, when you specify the identification number of the channel with the subscriber line that you want to connect to the subscriber line test boat using the external input device 1 of the central office terminal 2 and request a connection, the channel identification number and the connection request are sent. The interrupt signal is sent to the central office terminal 2.
interface 3 and data link 4 to the channel control circuit 6 of the remote terminal 5. Upon receiving the channel identification number designation signal and the interrupt signal, the channel control circuit 6 tests the specified subscriber line 10 on the channel board 7 having the subscriber line to be connected to the test boat based on the identification number. A channel control signal is sent to a relay 9 through an interface 8 provided in each channel board 7.7a, 7b for connection to the commercial boat 12. Upon receiving the channel control signal, the channel board 7 switches the relay 9 and can connect the subscriber line 10 to the test boat 11.

〔Effect of the invention〕

As explained above, the present invention sends a channel identification number and an interrupt signal to a remote terminal side through a data link for a subscriber line to be tested or monitored on the central station terminal side, and By connecting the subscriber line to the test boat, there is an effect that the subscriber line can be connected to the test equipment without going through an exchange such as a dedicated line.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention. 1... External input device, 2... Central office terminal, 3.8.
...Interface, 4...Data link, 5...
Remote terminal, 6... Channel control circuit, 7... Channel board, 9... Relay, 10... Subscriber line, 11
...Test boat.

Claims (1)

[Claims] a central office terminal that sends to a data link an identification number of a subscriber line designated by an operational input and an interrupt signal requesting connection of the subscriber line to a test port; and a remote terminal for connecting the subscriber line selected by a switch to a test port in response to a signal.