JPH01246992A - Isdn line adaptor - Google Patents

Abstract

PURPOSE:To set line control information against plural communication controlling means so as to make information setting time shorter by supplying line setting information to a control information setting means. CONSTITUTION:Each of plural communication controlling means 111 corresponds to the actual lines of an ISDN one-to-one and controls the data transmission- reception made through corresponding actual line. Moreover, a control information setting means 121 corresponds to an imaginary line and, when line setting information is introduced, sets line control information to each of the communication controlling means 111 in accordance with the line setting information. Therefore, when the line setting information is supplied to the control information setting means 121, the information can be set against plural communication controlling means 111.

Description

[Detailed Description of the Invention] [Table of Contents] Overview Industrial Application Fields Conventional Technology Problems to be Solved by the Invention Means for Solving the Problems Action Examples ■, Correspondence between the Examples and FIG. 1 ■ , Configuration of the embodiment (i) Configuration of the line adapter (ii) Configuration of the line control unit ■, Operation of the embodiment (i) Line setting information (ii) Addressing operation (iii) Setting operation of the line control information ■, Implementation Summary of Examples ■9 Modifications of the Invention Effects of the Invention [Summary] Reducing the time required to set line control information regarding an ISDN line adapter when setting line control information corresponding to each ISDN line prior to communication In an ISDN line adapter that accommodates multiple ISDN lines and performs data communication via each ISDN line, it has multiple communication controls that correspond one-to-one to the actual line and control data transmission and reception. and a control information setting means that corresponds to the virtual line and sets line control information in a plurality of communication control means in accordance with the line setting information introduced.

[Industrial application field]

The present invention relates to an ISDN line adapter, and more particularly to an ISDN line adapter for setting line control information corresponding to each ISDN line prior to communication.

[Conventional technology]

In recent years, with the increase in the amount of information and associated communication data, ISDN (Integrated Service Digital, LII), which makes it possible to transmit large amounts of data, has
rvices Digital Network) is becoming a reality.

ISDN replaces the conventional analog line network, and can also realize voice transmission via a telephone network, image information communication via a data communication network, and the like.

For example, the basic interface in ISDN is 64
It has two kbit/s information channels (B channels) and one 16 kbit/s signal channel (D channel).

The line adapter in the communication control processing device has a line unit for accommodating lines corresponding to these multiple channels, multiplexes the data (including control signals) stored in the line unit, and sends it out to the transmission path. , a multiplexing/demultiplexing circuit that separates multiplexed data received via a transmission path and stores it in a line unit. Prior to data communication, the main control section in the communication control device needs to set line control information for each of the plurality of lines connected to the line adapter in this line unit.

[Problem to be solved by the invention]

By the way, in the conventional method described above, communication control information was set for each channel of the line unit, so there was a problem that the setting process took time.

In particular, ISDN is a telephone network and a facsimile network.

This is a network that integrates packet networks, etc., and requires a lot of line control information to be set. For example, as an example of line control information, ■ synchronization method, ■ bit length of communication character,
■Stop bit length, ■Full-duplex/half-duplex distinction, ■Control mode (which CCITT recommendation to follow), ■Terminal speed,
■There are priorities for the D channel, etc.

In addition, the ISDN primary group interface has 23 B
channel and one D channel, and as the number of channels increases, the time required for setting processing of line control information also increases.

The present invention was created in view of these points, and an object of the present invention is to provide an ISDN line adapter that reduces the time required for line control information setting processing.

[Means to solve the problem]

FIG. 1 is a block diagram of the principle of the ISDN line adapter of the present invention.

In the figure, multiple ISDN lines are accommodated, and each ISDN
A plurality of communication control means 111 in an ISDN line adapter that performs data communication via a line are arranged one-to-one on an actual line.
, and controls data transmission and reception.

The control information setting means 121 corresponds to a fictitious line, and the plurality of communication control means 11 corresponds to the line setting information to be introduced.
Set the line control information in step 1.

Therefore, as a whole, by supplying the line setting information to the control information setting means 121, the plurality of communication control means 11
It is configured to set line control information for 1.

[Function] Each of the plurality of communication control means 111 has a one-to-l correspondence with an actual line of ISDN, and controls the transmission and reception of data via the corresponding actual line.

Further, the control information setting means 121 corresponds to a virtual line, and when line setting information is introduced, line control information is set in each of the communication control means 111 according to the line setting information.

In the present invention, by supplying line setting information to the control information setting means 121, the plurality of communication control means 111
Since the line control information can be set for the line control information, the time required for the line control information setting process can be shortened.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 2 shows the configuration of an embodiment using the ISDN line adapter of the present invention.

LJJJ 1 and 1''... Here, the correspondence between the embodiment of the present invention and FIG. 1 will be shown.

The communication control means 111 includes a B1 channel control section 211, a
2 channel control section 213. This corresponds to the D channel control section 215.

The control information setting means 121 corresponds to the control information setting section 221.

Examples of the present invention will be described below assuming that the correspondence relationship as described above exists.

The communication control processing device shown in FIG. 2 controls, for example, data communication between a host computer (not shown) and an rsDN line.

This communication control processing device accommodates a plurality of corresponding ISDN lines, controls the transmission and reception of data on each ISDN line, and also has a line adapter 210 (line adapter 210o) that multiplexes or separates the transmitted and received data.
, 210+, . . . ) and a line control section 230 that controls each line adapter 210.

I lower, up J line adapter 210. a B1 channel control unit 211o that controls one (B1 channel) of the two B channels (64 kbit/s) of the basic interface;
B2 controls the other B channel (B2 channel)
Channel control unit 213° and D channel (16kbit
/s), and control information that sets line control information for the B1 channel control unit 211°, B2 channel control unit 2130, and D channel control unit 215° prior to communication. It includes a setting section 221° and a demultiplexing circuit 217° that multiplexes data to be sent to the B1 channel, B2 channel, and D channel, and separates received multiplexed data.

The demultiplexing circuit 217° includes a B1 channel control unit 211,
, B2 channel control section 213. , D channel control section 21
5° and an external transmission line (IS with a capacity of 192 kbit/s including two B channels and one D channel)
DN line). The control information setting unit 221° is connected to each channel control unit.

Each line adapter after the line adapter 210I has the same configuration as the line adapter 210°, and a description thereof will be omitted. still,
Each component in the line adapter 210I has a subscript “,”
”.

Further, each component in each line adapter except for the multiplexing/demultiplexing circuit 217.degree. is assigned an address number corresponding to one to one. For example, line adapter 210o and line adapter 210. Table 1 shows the address numbers corresponding to each component.

The first table line control unit 230 includes a line control memory 231 that stores transmission/reception data, control information, etc.;
A read register 23 that holds data read from
3, a line control ALU 241 that performs data input/output control to and from the line control memory 231, and a line control memory 231.
an interface register 243 that holds data exchanged between the above-mentioned line adapters 210, and a scan counter 260 that increments an address number;
It includes a line address register 251 that stores the address number output from the scan counter 260 and supplies it to each line adapter.

The scan counter 260 consists of a register 261 that stores an address number, and an adder 263 that adds 1 to the address number stored in the register 261 and supplies it to the register 261 again.

The output terminal of the register 261 is connected to the address terminal of the line control memory 231 and the input terminal of the line address register 251. The output end of the line address register 251 is connected to each channel control section and each control information setting section 221 of the line adapter 210.

Further, the data output terminal of the line control memory 231 is connected to the input terminal of the read register 233. The line control ALU 241 is the output terminal 1 of the read register 233.
It is connected to the data input terminal of the line control memory 231 and the interface register 243. Further, the interface register 243 is connected to each channel control section and each control information setting section 221 of the line adapter 210.

The address number output from register 261 is sent to each line adapter 210 via line address register 251. Only the component designated by this address number (either the channel control section or the control information setting section) can exchange data or control information with the line control section 230.

Made by m Rakyu Next, the operation of the embodiment of the present invention described above will be explained.

Now, prior to data communication via each line adapter 210o, the B1 channel control unit 211°.

B2 channel H control section 213°, D channel control section 215
Consider the case where line control information is set in ゜.

Further, it is assumed that the connection bus width between each line adapter 210 and the line control section 230 is 8 bits, and the number of bits of data stored in the line control memory 231 is 8 bits.

First, from the line control unit 230 side to each line adapter 210
The line setting information supplied to the control information setting section 221 will be explained.

For example, consider the 8-bit data shown in Table 2 as line setting information.

In Table 2, 'D6 to D,' indicates each bit data of the 8-bit line setting information, 'Priority' indicates the priority of the D channel, and 'S/A' indicates the distinction between synchronous type and start-stop type. ,
r H/F indicates the distinction between half duplex or full duplex, "unit number" indicates the bit length of the communication character, and "stop length"
is the bit length of the stop bit, and "mode" is CCIT.
I of T Recommendation.

460.1.461 or 1.463 (X mark in the table indicates arbitrary bit data). Note that D, and D correspond to the B1 channel, and B6 and D correspond to the B2 channel.

j Address 2 Next, the address designation operation based on the count of the scan counter 260 will be explained.

Initially, the register 261 stores data "0",
This data "O" is output as address number "0". This address number “0” is the line address register 2.
51 to each line adapter 210.

When the address number “OJ” is supplied from the line control unit 230 side, only the B1 channel control unit 211° of the corresponding line adapter 2100 is enabled, and the B1 channel control unit 2
It becomes possible to perform data communication via 11o.

For example, when transmitting data, the line control memory 231
The 8-bit data stored in the area corresponding to the address number "0" is read out and stored in the read register 233, and the data is stored in the interface register 243 under the control of the line control ALU 241. Further, the data stored in the interface register 243 is supplied to the Bl channel control unit 211°, and sent to an external transmission line via the demultiplexer circuit 217°.

In addition, when receiving data, the B1 channel control unit 21
The data received at 1° is transferred to the interface register 243.
and further stored in the area corresponding to the address number "0" of the line control memory 231 under the control of the line fee 1 BALU 241.

Also, at this time, the adder 263 adds 1 to the address number output from the register 261, and again adds 1 to the address number output from the register 261.
Enter 1. As a result, the register 261 outputs the address number "0" followed by the address number "rl".

Thereafter, in the same way, only the components of the corresponding line adapter 21O are enabled.

When the corresponding component of the line adapter 210 no longer exists, the address number output from the register 261 is reset, and the address number "0" is output again.

In addition, the address number "
0'' is outputted is sufficiently long compared to the access time of the line control memo IJ 231. Therefore, the process of storing transmitted data in the line control memory 231, the process of reading received data stored in the line control memory 231, etc.
This is done using a time other than the above-mentioned access time.

iii Mouth, 71,1' = 1st order,
The operation of setting line control information for each channel control unit in the line ADADEC 210 will be explained.

For example, the control information setting section 221 of the line adapter 210°
Let us consider the case where line control information is set in each channel control unit in the line adapter 210°.

It is assumed that the 8-bit line setting information shown in Table 2 has already been stored in the area corresponding to the address number "3J" in the line control memory 231.

First, when the address number "3" is output from the register 261, this address number is sent to the line address register 25.
1 to the control information setting unit 2 in the line adapter 210°
21° and also to the address terminal of the line control memory 231.

When address number "3" is supplied to the line control memory 231, the 8-bit data (
For example, '0OxxO101') is output.The output data of the line control memory 231 is stored in the read register 23.
3 and is further supplied to the control information setting unit 221° of the line adapter 210° via the interface register 243.

The control information setting unit 221° sets line control information according to the supplied 8-bit data to the B1 channel control unit 211°, the B2 channel control unit 213o, and the D channel control unit 2.
Send it to each of 15 degrees.

As shown in Table 2, the 8-bit line setting information is 00x.
x0101"', the B1 channel control unit 211
Communication via the B1 channel controlled by ゜ and communication via the B2 channel controlled by the B2 channel control unit 213o are both synchronous full-duplex communication, so control information to that effect is set in the control information. The signal is supplied from the unit 221° to the B1 channel control unit 211o and the B2 channel control unit 213°. For example, the control information setting unit 221° is configured with a logic circuit that performs a decoding operation, and D, D.

- When "ooo", create data indicating whether it is synchronous type, start-stop type, half duplex or full duplex according to the 2-bit data D, D. The signal is supplied to the B1 channel control section 211°.

When it is necessary to set other line control information, the name and address number output from the register 261 will be "3".
Perform the same process when .

In this way, the line adapter 210° has a B1 channel control unit 211° and a B2 channel control unit 213o that control the B channel, and a D channel control unit 215° that controls the D channel. Each of these channel control units corresponds to the address number output from the scan counter 260 in a one-to-l ratio. Furthermore, the control information setting unit 221° in the line adapter 210° corresponds to an address number different from that of each channel control unit (ISDN
(not corresponding to lines), line control information is supplied to each channel control unit based on the 8-bit line setting information supplied to the control information setting unit 2210.

Therefore, by supplying the line setting information to the control information setting unit 221°, it is possible to set the line control information for other channel control units, compared to the case where the setting process is performed individually for each channel control unit. , it is possible to shorten the time required for setting processing.

Furthermore, when viewed from the line control unit 230 side, the line setting information supplied to the control information setting unit 221 of each line adapter 210 is adapter number “3”.

This corresponds to supplying data to the virtual lines corresponding to "7", . . . Therefore, the existing line control unit 230
By adding the line adapter 210 of the present invention, it becomes possible to easily support ISDN.

■、■・Mark "hi".

In the embodiment of the present invention described above, the basic interface was considered, but other ISDN interfaces (1
The next group interface, etc.) can be considered in the same way.

Furthermore, in the embodiment, line setting information is supplied to one control information setting section 221 and expanded to other plurality of channel control sections, but two or more control information setting sections 22
In order to increase the number of bits of data that is supplied at once), it may be expanded to a plurality of channel control units.

Furthermore, in "■, Correspondence between Examples and FIG. 1",
Although the correspondence between the present invention and the embodiments has been explained, those skilled in the art can easily imagine that the present invention is not limited to this and that there are various modifications. Dew.

〔Effect of the invention〕

As described above, according to the present invention, line control information can be set for a plurality of communication control means by supplying line setting information to the control information setting means. This makes it possible to shorten the time required for processing, which is extremely useful in practice.

[Brief explanation of the drawing]

FIG. 1 is a principle block diagram of the ISDN line adapter of the present invention, and FIG. 2 is a block diagram of an embodiment using the ISDN line adapter of the present invention. In the figure, 111 is a communication control unit, 121 is a control information setting unit, 210 is a line adapter, 211 is a B1 channel control unit, 213 is a B2 channel control unit, 215 is a D channel control unit, 217 is a demultiplexing circuit, and 221 is a demultiplexing circuit. 230 is a line control unit; 231 is a line control memory; 233 is a read register; 241 is a line control ALU. 243 is an interface register, 251 is a line address register, 260 is a scan counter, 261 is a register, and 263 is an adder. Diagram 1 of unexploded θ eyes

Claims (1)

[Claims] (1) In an ISDN line adapter that accommodates multiple ISDN lines and performs data communication via each ISDN line, a plurality of communication control means (111 ), and control information setting means (121) corresponding to the virtual line and setting line control information in the plurality of communication control means (111) according to the line setting information introduced. An ISDN line adapter characterized by comprising: