JPS62266947A - Data transmission controlling equipment - Google Patents

Abstract

PURPOSE:To change a prescribed terminal equipment protocol without giving effect on the communication job of other lines by giving a terminal equipment protocol control task to a terminal interface section card by kinds of required protocols. CONSTITUTION:A program is arranged to the terminal interface section card in a form shown in figure by power-on of a data transmission controller and link information between a terminal side line 2 and a terminal protocol control task 15 is set to a line control information area 17 by the network management or a default. In starting the communication job of a terminal equipment, a protocol identification control section 18a in a procedure control section 18 reads protocol identification information of the line from the area 17 and accesses a protocol classification table 18b depending on the contents. Thus, a corresponding terminal protocol control task 15 is started by using line start information read from the table 18b. The area 17 is rewritten by using an input section in a similar way of revising other parameters.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data transmission control device that supports a plurality of different protocols.

[Conventional technology]

Figure 2 is a configuration diagram of a general data transmission control device.
) is a data transmission control device, (2) is a terminal side line connected to a terminal, (3) is a terminal interface unit card that accommodates a plurality of terminal side lines (2), and (4) is this terminal interface unit card (3). ) and network side interface card (
(5) is an internal bus that connects the network side interface card (5) and the network side line for connecting the switching network, etc. (7).
) is a network management card for managing and controlling the data transmission control device (1), (8) is an auxiliary storage device for holding programs and parameters, and (9) is for people to change parameters, etc. The input section (10) exists in the terminal interface section card (3) and is a task (software) for controlling the terminal protocol.

(12) is a data transmission control device! Internal bus (4) in (+)
) and an internal control task group (software) that executes protocol control and changes of the time meter from the network management unit card (7). (11) is a monitor (
(14) is the network management card (7).
) is a network management task group (software) that performs device management, auxiliary storage control, input unit control, etc.

Further, (13) is located in the network side interface unit card (5) and is a network side protocol control task for controlling the protocol between the network and the switching network.

FIG. 3 is an enlarged view of the terminal interface section card (3), showing the internal configuration of the terminal protocol control task group (10). (18a) to (18n) are tasks for controlling the protocol of the terminal side line (2), and are fixed for each terminal side line. Just 2a
) and (2b) are the same protocol, (lea)
and (+8b) are the same task.

Next, the operation will be explained. In Figure 2, when the power is turned on, the software in the network management card (7) loads programs (each task) from the auxiliary storage device (8) to each card, and the data transmission vibration damping device (1) performs communication operations. You will be able to do this. At this time, the terminal protocol control task group (+6a) in the terminal interface card (3)
~(+6n) As shown in Figure 3, the terminal side line (2
a) Terminal protocol control task (lea) supporting seven protocols for each of (2b) to (2n), (
16b) ~(+8n) are fixedly present and operate. Taking Figure 3 as an example, the flow of data from the terminal is as follows.
Data from the terminal connected to the terminal side line (2a) is received by the terminal protocol control task (18a), and is processed and passed to the internal control task group (work 2) via the monitor (11). . At this time, if necessary, the terminal protocol control task (lea) sends a response to the terminal side line (2a).
) to the terminal. The internal control task group (12) sends this data to 1. via the internal lotus (4). The data is sent to the network side interface card (5) or, in the case of internal exchange, to the terminal interface section card (3), and further, the data is sent to the outside of the data transmission control device (1) for data transmission. Further, data from the terminal side line (2b) is transmitted by the terminal protocol control task (+6b), (2c) by (16c), and (2d) by (16d) in the same manner as described above. At this time, for example, in Fig. 3, in order to change the protocol of the terminal connected to the terminal side line (2b) to one supported by the terminal protocol control task (lea), (2a), (2c), (2d ) is connected to (If
la) and (18b) recode similar affordable software and then resume communications operations.

[Problem that the invention seeks to solve]

Conventional data transmission control devices are configured and operate as described above, so when changing the protocol of one terminal,
Another problem was that it was necessary to temporarily stop the communication operations of the terminals connected to the same card and reroute the program.

This invention was made to solve the above-mentioned problems, and its purpose is to provide a data transmission control device that can perform communication operations on other lines without interfering with other lines when changing the protocol of a terminal. shall be.

[Means for solving problems]

The terminal interface card of the data transmission control device according to the present invention supports protocols for the number of terminal-side lines or the required number of lines in the card, and is also provided with a terminal protocol control task group that supports necessary types of protocols in advance. At the same time, by reading protocol identification information from the line control information area based on the transmission data information at the start of data transmission, and activating the corresponding protocol control task in the protocol control task group based on the read protocol identification information, The protocol is made to correspond to the line, and a linkage relationship between the physical terminal-side line and the terminal-side protonyl control task is established.

[Effect]

The data transmission control device according to the present invention is equipped with a plurality of types of terminal protocol control tasks for controlling the protocol of the terminal line in an interface section on the side of a single line terminal, each corresponding to the number of terminal lines or the required number of lines, and transmitting data each time via each line. By adapting each of the above protocols to each line according to the transmitted data information, it becomes easy to adapt the protocol to each line, and when changing the protocol of a specific terminal line, it is possible to change the communication operations of other lines. Easily make changes without stopping.

〔Example〕

The internal configuration of the terminal interface section card of a data transmission control device which is an embodiment of the present invention is shown in FIG.
(2), (3), and (If) are the same parts as shown in FIG. The terminal protocol control task (15) in the terminal protocol control task group (1o) can support the number of terminal lines (n lines in this case) for each protocol.
a) and (15b) to (15z) support different protocols. (17) is a line control information area and has identification information of the protocol of line (2). (1
B) is a procedure control unit that determines which protocol is compatible with the line and activates the terminal protocol control task (15), and combines the functions of the protocol identification control unit (+8a) and the protocol classification table (18b). It is a task.

Next, the operation will be explained. When the power of the data transmission control device is turned on, a program is placed in the terminal interface card in the form shown in Figure 1, and the connection between the terminal side line (2) and the terminal protocol control task (15) is performed by network management or by default. The link information is stored in the line control information area (
17).

When the communication service of the terminal is started, the procedure control unit (18)
The medium protocol identification control unit (18a) reads the protocol identification information of the outgoing line from the line control information area (17) and accesses the protocol classification table (18b) based on its contents. This results in the protocol classification table (18b)
The corresponding terminal protocol control task (15) is activated based on the line activation information read from the terminal protocol control task (15). This operation is performed every time the communication service of the terminal is started.In addition, line (2a)
~(2n) Even if all the procedures are the same, no problem will occur because the terminal protocol control task can support n lines at the same time. Terminal protocol control task (15
) is activated, the operation is the same as before. Also(
To rewrite the line control information area in 17), use the input section (9)
This can be done in the same way as changing other parameters.

In addition, although the parameters of the above line information area were changed from the input section connected to the network management card, it is not possible to change the parameters by setting up a specific protocol between the terminal and the data transmission control device and requesting the changes from the terminal. A similar effect can be obtained.

In addition, in the above embodiment, the program is loaded from the auxiliary storage device, but it is loaded in RO1'l of the terminal interface card and parameters such as the line information area are loaded in R.
A similar effect can be obtained even if the signal is generated on AM and changed.

〔Effect of the invention〕

As described above, according to the present invention, the terminal protocol control task can be supported as many times as the number of terminal lines in the card or as many times as necessary, and only the necessary types of protocols are present in the terminal interface section card, and the tasks can be performed as many times as necessary for the terminal lines. The link with the terminal protocol control task is configured as a parameter in the line control information area, so when changing the protocol of a given terminal, it can be changed without affecting the communication operations of other lines, allowing for functional data transmission control. This has the effect of providing a device.

[Brief explanation of drawings]

FIG. 1 is a software configuration diagram of a terminal interface section card of a data transmission control device according to an embodiment of the present invention;
FIG. 2 is a block diagram of the entire data transmission control device, and FIG. 3 is a block diagram of the software B of a conventional terminal interface card. In the figure, (1) is the data transmission control device itself, (2) is the terminal side line, and (3) is the terminal interface card. (3) is an input section, and (10) is a terminal protocol J + control task group. (15) is the terminal protocol control task according to the present invention, (16) is the conventional terminal protocol control task, (17)
is the line control N information area, and (13) is the procedure control section. In addition, in the figures, the same reference numerals indicate fields or corresponding parts.

Claims (1)

[Claims] In a data transmission control device that supports a plurality of protocols and is equipped with a terminal interface card that accommodates a group of lines each transmitting a plurality of data and each line has a different type of protocol, the terminal interface card can transmit a plurality of A terminal protocol control task group that stores tasks for controlling each type of terminal protocol for the number of lines mentioned above; a line control information area that stores protocol identification information for data transmitted to the terminal via each line; and a procedure control unit that identifies the transmission data information of each line and reads the protocol identification information of the corresponding line from the line control information area based on the identification information when the terminal starts communication operations, Data transmission characterized by starting a corresponding protocol control task from a protocol control task group to support a terminal side line protocol, and having means for arbitrarily setting the protocol identification information to appropriately select a terminal side line protocol. Control device.