JPS6214981B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for rewriting identification information held by a plurality of utilization devices connected to an exchange via data lines.

Conventionally, the identification information of the equipment connected to the exchange via a data line is unique to the equipment, and once it is set, it is used semi-permanently. This was realized using various hardware.

Therefore, there is a drawback that it takes a lot of time to make changes depending on the operating conditions of the system.

The present invention provides a circuit that stores, splits, and distributes data issued from the exchange at a position connected to the exchange by a data line, writes the same identification information to the devices used, groups the devices used, and changes the identification information. An object of the present invention is to provide an identification information rewriting method that can control the above information according to system requirements.

According to the present invention, in a system in which an exchange and a plurality of utilization devices are connected via a data line, a storage device for storing identification data is provided at a connection position of the utilization devices, and the plurality of utilization devices are connected to each other via a data line. On the other hand, an identification information rewriting method is obtained which is characterized in that the contents of a plurality of storage devices of the user device are simultaneously rewritten in response to a command from an exchange.

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

FIG. 1 is a system diagram showing a connection state between an exchange and a plurality of utilization devices. The exchange 1 has a plurality of devices, for example, telex terminals 3 to n connected to data lines m to
They are connected by m+i, and an identification information rewriting device 2 is connected to the data line l. Furthermore, this identification information rewriting device 2 is connected to each of a plurality of utilization devices 3 to n on the network.

Figure 2 shows the identification information rewriting device 2 in Figure 1.
FIG. This identification information rewriting device 2 includes a line control unit 21, a data storage buffer 22, a memory group 23 for determining the group configuration of a plurality of devices to be used, and a memory group 23 for determining which device to use. It is comprised of a counter 24 for reading out the memory group 23, a comparison circuit 25 for determining which device is being used, and the like. Exchange 1
and identification information rewriting device 2 connected by data line l.
The line control unit 21 is driven from the exchange 1 according to the necessary configuration of the system, and reports the communication enabled state to the exchange 1. Next, exchange 1 sends the identification information required by the system to multiple devices,
Various data are sent to the identification information rewriting device 2.
The first transmission information from the exchange 1 is temporarily stored in the buffer register 22, and after being divided, it is sent to the memory group 23.
written to.

Next, identification information to be written to the utilization device is sent from the exchange and stored in the buffer register 22, and then outputted to a plurality of utilization devices through the data line 7. At the same time, the information written in the memory 23 is read out from the memory 23 sequentially by activating the counter 24 according to the activation condition of the buffer register 22, and is compared with the data stored in the buffer register 22 in the comparison circuit 25. If the comparison results match, a selection signal is sent through the selection line 8, and a selection signal is sent to the plurality of usage devices 3 to n.
data for identification is written to a storage device.

In the above embodiment, if the exchange 1 is a telex exchange and the utilization devices 3 to n are telex terminals, then the telex terminals at the telex exchange center are
The ABS can be freely changed from an exchange-only terminal to an inquiry-only terminal, or vice versa, according to traffic conditions or system requirements without making any changes to the terminal.

As described above, the present invention has the advantage that it is installed at a position connected to a data line, and by simultaneously rewriting a plurality of pieces of identification information of the medical equipment, it can be changed to the identification information required by the system.

[Brief explanation of the drawing]

FIG. 1 is a connection diagram showing the relationship between an exchange according to the present invention and a plurality of utilization devices, and FIG. 2 is a block diagram showing details of the identification information rewriting apparatus according to the present invention. 1...Switching machine, 2...Identification information rewriting device, 2
1...Line control unit, 22...Buffer register,
23...Memory, 24...Counter, 25...Comparison circuit, 3-n...Using device, 7...Data line,
8...Selection line.

Claims (1)

[Claims] 1. In a system in which an exchange and a plurality of utilization devices are connected via a data line, a storage device that stores identification data at a connection position of the utilization device, and an identification information device connected to the exchange and the utilization device. 1. An identification information rewriting method, comprising: a rewriting device, and simultaneously rewriting the contents of a plurality of storage devices of the plurality of utilization devices in accordance with a command from an exchange.