ANGIA COMMUNICATIONS, INC.

DATASTAR

Modem Type

Data (asynchronous)/Fax

Maximum Data Rate

2400bps

Maximum Fax Rate

9600bps

Data Bus

PCMCIA TYPE II

Fax Class

Class I & II

Data Modulation Protocol

Bell 103A/212A

ITU-T V.22, V.22bis

Fax Modulation Protocol

ITU-T V.21CH2, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

V1555

Proprietary AT Command Set

BIT-MAPPED REGISTER S14

Format

AT [cmds] S14=n [cmds]

Example:

ATS14=170<CR>

Default:

170

Range:

0-174

Unit:

Bit-mapped

Description:

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

Bit

Value

Function

0

0

Not used.

1

0

» 1

Command echo disabled.

Command echo enabled.

2

» 0

1

Result codes enabled.

Result codes disabled.

3

0

» 1

Display result codes in numeric format.

Display result codes in verbose format.

4

0

Command recognition enabled.

5

0

» 1

Tone dial enabled.

Pulse dial enabled.

6

0

Not used.

7

0

» 1

Answer mode enabled.

Originate mode enabled.

BIT-MAPPED REGISTER S21

Format

AT [cmds] S21=n [cmds]

Example:

ATS21=0<CR>

Default:

0

Range:

0 - 184

Unit:

Bit-mapped

Description:

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

Bit

Value

Function

0

» 0

Selects RJ-11

2, 1

0

Not used.

4, 3

» 00

01

10

11

DTR signal ignored.

Modem goes to command mode on low DTR.

Modem disconnects on low DTR. Auto-Answer is disabled.

Modem is initialized on low DTR.

5

» 0

1

DCD forced high.

DCD normal.

6

0

Not used.

7

» 0

1

Long Space Disconnect function disabled.

Long Space Disconnect function enabled.

BIT-MAPPED REGISTER S27

Format

AT [cmds] S27=n [cmds]

Example:

AT S27=64 <CR>

Default:

64

Range:

0 - 115

Unit:

Bit-mapped

Description:

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

Bit

Value

Function

1, 0

» 00

01

10

11

Asynchronous mode, serial port speed follows connect speed.

Asynchronous command mode and synchronous connect mode.

Asynchronous command mode and synchronous connect mode, DTR dialing enabled.

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

3, 2

0

Not used.

5, 4

» 00

01

10

11

Internal DCE transmit clock source.

External DTE transmit clock source.

Remote DCE transmit clock source.

Internal DCE transmit clock source.

6

0

» 1

CCITT mode.

Bell mode.

TEST MODES

Format

AT [cmds] S16=n [cmds]

Example:

ATS16=40<CR>

Default:

0

Range:

0-125

Unit:

Bit-mapped

Description:

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

Bit

Value

Function

0

» 0

1

Local analog loopback not in progress.

Local analog loopback in progress.

1

0

Not used.

2

» 0

1

Local digital loopback not in progress.

Local digital loopback in progress.

3

» 0

1

Modem not in remote digital loopback.

Remote digital loopback in progress.

4

» 0

1

Remote digital loopback not requested.

Remote digital loopback requested.

5

» 0

1

Remote digital loopback w/ self-test not in progress.

Remote digital loopback w/ self-test in progress.

6

» 0

1

Local analog loopback w/ self-test not in progress.

Local analog loopback w/ self-test in progress.