IPTools.net.ua

Modem Type

Data (synchronous/asynchronous)/Fax

Maximum Data Rate

2400bps

Maximum Fax Rate

9600bps

Data Bus

8-bit ISA

Fax Class

Unidentifed

Data Modulation Protocol

Unidentifed

Fax Modulation Protocol

ITU-T V.21, V.27ter

Error Correction/Compression

MNP5, V.42, V.42bis

CONNECTIONS

Purpose

Location

Purpose

Location

Line out

CN1

Line in

CN2

BASE I/O ADDRESS SELECTION

Port

SW1/A

SW1/C

SW1/E

SW1/F

Off

On

Off

On

On

Off

Off

On

Off

On

On

Off

On

Off

On

Off

INTERRUPT SELECTION

IRQ

SW/B

SW1/D

JP1

On

Off

Pins 2 & 4 closed

Off

On

Pins 2 & 4 closed

Off

Off

Pins 3 & 4 closed

Off

Off

Pins 1 & 2 closed

Note: Location of JP1 is unidentified.

ACCEPT RELIABLE MODE

Type:

Immediate

Format:

AT [cmds] \U [cmds]

Example:

AT \U B1<CR>

Description:

Accepts remote modem�s request for reliable link.

AUTO-RELIABLE FALLBACK CHARACTER

Type:

Configuration

Format:

AT [cmds] %An [cmds]

Example:

AT%A19<CR>

Default:

19

Range:

0-127

Unit:

ASCII

Description:

Sets the character used as the auto-reliable fallback character. %A0 will disable this function.

AUTO-RELIABLE TIME BUFFER CONFIGURATION

Type:

Configuration

Format:

AT [cmds] \Cn [cmds]

Example:

AT \C1 &W<CR>

Description:

Controls the handling of incoming data during auto-reliable time period.

Command

Function

\C0

Data is discarded.

\C1

Data is buffered.

\C2

Data is discarded, modem returns to normal mode on receiving auto-reliable fallback character.

BIT-MAPPED REGISTER S14

Format

AT [cmds] S14=n [cmds]

Example:

ATS14=0<CR>

Default:

Unidentified

Range:

0-174

Unit:

Bit-mapped

Description:

Controls echo, result codes, result code display, dial mode, and answer/originate mode.

Bit

Function

0

0

Not used.

1

1

Command echo enabled.

2

1

Result codes disabled.

3

1

Display result codes in verbose format.

4

1

Dumb mode.

5

1

Pulse dial enabled.

6

0

Not used.

7

1

Originate mode enabled.

BIT-MAPPED REGISTER S21

Format

AT [cmds] S21=n [cmds]

Example:

ATS21=0<CR>

Default:

Unidentified

Range:

0-253

Unit:

Bit-mapped

Description:

Selects jack type, CTS signal, low DTR action, DCD signal, DSR signal, and the Long Space Disconnect function.

Bit

Function

0

1

Not used.

1

1

Parallel.

2

1

CTS forced high (synchronous only).

4, 3

11

Modem is initialized on low DTR.

5

1

DCD normal.

6

1

DSR normal.

7

1

Long Space Disconnect function enabled.

BIT-MAPPED REGISTER S22

Format

AT [cmds] S22=n [cmds]

Example:

ATS22=0<CR>

Default:

Unidentified

Range:

0-127

Unit:

Bit-mapped

Description:

Controls speaker volume and controls, and limits results codes.

Bit

Function

1, 0

11

High level volume.

3, 2

11

Speaker on during handshake.

6, 5, 4

111

All result codes enabled.

BIT-MAPPED REGISTER S23

Format

AT [cmds] S23=n [cmds]

Example:

ATS23=0<CR>

Default:

Unidentified

Range:

0-189

Unit:

Bit-mapped

Description:

Grants/denies remote digital loopback, controls DTE rate and parity, and sets guard tone.

Bit

Value

Function

0

1

Remote digital loopback allowed.

2, 1

Sets serial port speed to 2400bps.

3

Not used.

5,4

11

Mark/ No Parity.

7, 6

10

Guard tone 1800Hz enabled.

BIT-MAPPED REGISTER S27

Format

AT [cmds] S27=n [cmds]

Example:

AT S27=0 <CR>

Default:

Unidentified

Range:

0 - 108

Unit:

Bit-mapped

Description:

Selects sync/async mode, Line type, internal clock, and ITU-T/Bell modes.

Bit

Value

Function

1, 0

11

Asynchronous command mode on low DTR, synchronous connect mode on high DTR.

2

1

Leased line.

3

Not used.

5, 4

10

Remote DCE transmit clock source.

6

1

Bell mode.

BIT-MAPPED REGISTER S36

Format

AT [cmds] S36=n [cmds]

Example:

ATS36=0<CR>

Default:

Unidentified

Range:

0 - 207

Unit:

Bit-mapped

Description:

Selects connect mode, flow control, XON/XOFF flow control, and DTE port flow control.

Bit

Function

1, 0

11

Auto-reliable mode enabled.

2

1

Flow control enabled.

3

1

XON/XOFF passed through local modem.

5, 4

0

Not used.

6, 7

11

RTS/CTS flow control enabled.

BIT-MAPPED REGISTER S38

Format

AT [cmds] S38=n [cmds]

Example:

ATS38=40<CR>

Default:

Unidentified

Range:

0 - 158

Unit:

Bit-mapped

Description:

Controls auto-reliable buffer, lock serial port speed, data echo, extended result codes, and transmit break.

Bit

Function

1, 0

10

Data is discarded, modem returns to normal mode on receiving auto-reliable fallback character.

2

1

Serial speed follows connect speed.

3

1

Data echo enabled.

4

1

Extended result codes enabled.

6, 5

0

Not used.

7

1

300ms break transmitted.

BIT-MAPPED REGISTER S40

Format

AT [cmds] S40=n [cmds]

Example:

ATS40=0<CR>

Default:

Unidentified

Range:

0 - 163

Unit:

Bit-mapped

Description:

Controls MNP block size, and break type.

Bit

Function

1, 0

11

Maximum MNP block size is 256 characters.

2, 3, 4

0

Not used.

5, 6, 7

101

Send break with transmitted data.

BREAK SEND

Type:

Configuration

Format:

AT [cmds] \Bn [cmds]

Example:

AT \B3 &W<CR>

Range:

1-9

Unit:

.1 second

Description:

Sends break to modem.

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Example:

AT \K5 <CR>

Description:

Configures action of break signal.

Command

Function

\K0

Online command mode enabled, send no break to remote modem.

\K1

Break sent to remote modem and buffered cleared.

\K2

Online command mode enabled, send no break to remote modem.

\K3

Send break to remote modem immediately.

\K4

Online command mode enabled, send no break to remote modem.

\K5

Send break with transmitted data.

COMPRESSION

Type:

Configuration

Format:

AT [cmds] %Cn [cmds]

Example:

AT \V1 %C0 &W<CR>

Description:

Selects data compression.

Command

Function

%C0

Data compression disabled.

%C1

Data compression enabled.

COMPRESSION

Type:

Register

Format:

AT [cmds] S41=n [cmds]

Example:

AT S41=0 &W<CR>

Description:

Selects data compression.

Function

S41=0

Data compression disabled.

S41=1

Data compression enabled.

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Example:

AT \N0 DT555-1212<CR>

Description:

Sets connect mode.

Command

Function

\N0

Normal mode enabled.

\N1

Direct mode enabled.

\N2

Reliable mode enabled.

\N3

Auto-reliable mode enabled.

CONVERT TO RELIABLE MODE

Type:

Immediate

Format:

AT [cmds] \Y [cmds]

Example:

AT \Y<CR>

Description:

Initiates reliable mode link.

ECHO DATA

Type:

Configuration

Format:

AT [cmds] \En [cmds]

\Example:

AT \E0 <CR>

Description:

Enables modem to echo received data.

Command

Function

\E0

Data echo disabled.

\E1

Data echo enabled.

EXTENDED RESULT CODES

Type:

Configuration

Format:

AT [cmds] \Vn [cmds]

Example:

AT \V0 %C1<CR>

Description:

Selects extended result codes.

Command

Function

\V0

Extended result codes disabled.

\V1

Extended result codes enabled.

FLOW CONTROL

Type:

Configuration

Format:

AT [cmds] \Gn [cmds]

Example:

AT \G1 &K3<CR>

Description:

Selects modem port flow control.

Command

Function

\G0

Flow control disabled.

\G1

Flow control enabled.

FLOW CONTROL TYPE

Type:

Configuration

Format:

AT [cmds] \Qn [cmds]

Example:

AT \Q0 A <CR>

Description:

Sets type of flow control used by modem.

Command

Function

\Q0

Flow control disabled.

\Q1

XON/XOFF flow control enabled.

\Q2

CTS flow control to DTE enabled.

\Q3

RTS/CTS flow control enabled.

INACTIVITY TIMER

Type:

Configuration

Format:

AT [cmds] \Tn [cmds]

Example:

AT\T20<CR>

Default:

Unidentified

Range:

0-90

Unit:

1 minute

Description:

Sets the length of time that the modem does not receive information before it disconnects.

LOCK SERIAL PORT

Type:

Configuration

Format:

AT [cmds] \Jn [cmds]

Example:

AT %L3 %B14 \J0<CR>

Description:

Sets operation of serial port speed.

Command

Function

\J0

Serial speed locked.

\J1

Serial speed follows connect speed.

MAXIMUM BLOCK SIZE FOR TRANSMISSION

Type:

Configuration

Format:

AT [cmds] \An [cmds]

Example:

AT \A3 %C1<CR>

Description:

Sets the maximum transmittable block size.

Command

Function

\A0

Maximum MNP block size is 64 characters.

\A1

Maximum MNP block size is 128 characters.

\A2

Maximum MNP block size is 192 characters.

\A3

Maximum MNP block size is 256 characters.

ON-LINE IN RELIABLE MODE

Type:

Immediate

Format:

AT [cmds] \O

Example:

AT \O <CR>

Description:

Returns to on-line and requests reliable mode connection.

SWITCH TO MNP MODE

Type:

Immediate

Format:

AT [cmds] \Z [cmds]

Example:

AT \Z &W<CR>

Description:

Switches to normal mode from MNP mode.

TEST MODES

Format

AT [cmds] S16=n [cmds]

Example:

ATS16=0<CR>

Default:

Unidentified

Range:

0-125

Unit:

Bit-mapped

Description:

Controls loopback tests, analog, digital, remote digital, and self tests.

Bit

Value

Function

0

1

Local analog loopback in progress.

1

0

Not used.

2

1

Local digital loopback in progress.

3

1

Remote digital loopback in progress.

4

1

Remote digital loopback requested.

5

1

Remote digital loopback w/ self-test in progress.

6

1

Local analog loopback w/ self-test in progress.

XON/XOFF PASS-THROUGH

Type:

Configuration

Format:

AT [cmds] \Xn [cmds]

Example:

AT \X0 O<CR>

Description:

Selects whether XON/XOFF signals are sent to remote modem.

Command

Function

\X0

XON/XOFF signals trapped by local modem.

\X1

XON/XOFF passed through local modem.