OSITECH COMMUNICATIONS, INC.

TRUMPCARD FAX/MODEM 28.8

Modem Type

Data (synchronous/asynchronous)/Fax

Maximum Data Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

PCMCIA

Fax Class

Class I & II

Data Modulation Protocol

Bell 103A/212A

ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34

Rockwell V.FC

Fax Modulation Protocol

ITU-T V.17, V.27ter, V.29

Error Correction/Compression

MNP5, MNP10, V.42, V.42bis

Proprietary AT Command Set

V1491

AUTO-RETRAIN - FALLBACK/FALLFORWARD

Type:

Configuration

Format:

AT [cmds] %En [cmds]

Example:

AT %E1 <CR>

Description:

Controls auto-retrain mode and fallback/fall forward.

Command

Function

%E0

Line quality monitor disabled

%E1

Line quality monitor and auto-retrain enabled.

%E2

Line quality monitor and fallback/fall forward enabled.

%E3

Line quality monitor and fallback/fall forward enabled hangup on EQM .

BIT-MAPPED REGISTERS

Register

Default

S14

138

S16

0

S21

4

S22

117

S23

55

S27

74

S28

0

S31

194

S39

3

S40

105

S41

03

BREAK SEND

Type:

Configuration

Format:

AT [cmds] \Bn [cmds]

Example:

AT \B3 &W<CR>

Default:

3

Range:

0-9

Unit:

.1 second

Description:

Sends break to modem.

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Example:

AT \K1 <CR>

Description:

Configures action of break signal.

Command

Break from DTE

Break from DTE while in command mode

Break from remote modem

\K0

Enter command mode, do not send break to remote modem.

Buffers cleared and break sent to remote modem.

Buffers cleared and break sent to DTE.

\K1

Buffers cleared and break sent to remote modem.

Buffers cleared and break sent to remote modem.

Buffers cleared and break sent to DTE.

\K2

Enter command mode, do not send break to remote modem.

Send break to remote modem immediately.

Send break to DTE immediately.

\K3

Send break to remote modem immediately.

Send break to remote modem immediately.

Send break to DTE immediately.

\K4

Enter command mode, do not send break to remote modem.

Send break to remote modem with transmitted data.

Send break to remote modem with transmitted data.

\K5

Send break with transmitted data.

Send break to remote modem with transmitted data.

Send break to remote modem with transmitted data.

CELLULAR TRANSMISSION LEVEL

Type:

Register

Format:

AT [cmds] @Mn [cmds]

Example:

AT @M26 &W<CR>

Default:

26

Range:

10-31

Unit:

-1dBm when n>10.

Description:

Sets the signal level for transmission when in leased line mode.

Command

Function

@M0

-26dBm.

@M1

-30dBm.

@M2-@M10

-10dBm.

COMPRESSION

Type:

Configuration

Format:

AT %Cn

Example:

AT %C1 &B0<CR>

Description:

Selects data compression.

Command

Function

%C0

Data compression disabled.

%C1

MNP5 enabled.

%C2

V.42bis enabled.

%C3

MNP5 and V.42bis enabled.

COMPROMISE EQUALIZER

Type:

Configuration

Format:

AT [cmds] :En [cmds]

Example:

AT :E &W<CR>

Description:

Controls V.32 compromise equalizer.

Command

Function

:E0

Equalizer disabled.

:E1

Equalizer enabled.

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Example:

AT \N1 DT555-1212<CR>

Description:

Sets connect mode.

Command

Function

\N0

Normal mode enabled.

\N1

Normal mode enabled.

\N2

Reliable mode enabled.

\N3

Auto-reliable mode enabled.

\N4

LAPM mode enabled.

\N5

MNP mode 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 CHARACTER - XOFF

Type:

Register

Format:

AT [cmds] S33=n [cmds]

Example:

ATS33=20<CR>

Default:

19

Range:

0-255

Unit:

ASCII

Description:

Sets the character used to represent XOFF.

FLOW CONTROL CHARACTER - XON

Type:

Register

Format:

AT [cmds] S32=n [cmds]

Example:

ATS32=20<CR>

Default:

17

Range:

0-255

Unit:

ASCII

Description:

Sets the character used to represent XON.

LINE SIGNAL LEVEL

Type:

Immediate

Format:

AT [cmds] %L [cmds]

Example:

AT %L &W<CR>

Range:

9-43

Unit:

-1dB

Description:

Returns received line signal level.

MNP10 COMPRESSION

Type:

Configuration

Format:

AT [cmds] -Kn [cmds]

Example:

AT %C1 -K1 <CR>

Description:

Selects MNP10 data compression.

Command

Function

-K0

MNP10 disabled.

-K1

MNP10 enabled.

-K2

MNP10 enabled on originate mode only.

MNP10 LINK NEGOTIATION

Type:

Configuration

Format:

AT [cmds] *Hn [cmds]

Example:

AT *H0 <CR>

Description:

Sets the speed at which MNP10 link negotiation will occur.

Command

Function

*H0

Link will be negotiated at highest possible speed.

*H1

Link will be negotiated at 1200bps.

*H2

Link will be negotiated at 4800bps.

MNP10 POWER LEVEL ADJUST

Type:

Configuration

Format:

AT [cmds] )Mn [cmds]

Example:

AT )M1 %C1<CR>

Description:

Controls automatic transmit power level adjustment during MNP 10 link negotiation.

Command

Function

)M0

Power level adjustment disabled.

)M1

Power level adjustment enabled.

PROTOCOL/SPEED

Format

AT [cmds] S37=n [cmds]

Example:

ATS37=21<CR>

Default:

0

Range:

0-21

Unit:

Bit-mapped.

Description:

Selects protocol and line speed.

Command

Function

S37=0

Auto-select fastest common protocol.

S37=1

Connect at 300bps

S37=2

Connect at 300bps

S37=3

Connect at 300bps.

S37=4

Not used.

S37=5

Connect at 1200bps V.22.

S37=6

Connect at 2400bps.V.22bis

S37=7

Connect at 75/1200bps.V.32

S37=8

Connect at 4800bps V.32bis/V.32.

S37=9

Connect at 9600bps V.32bis/V.32

S37=10

Connect at 12Kbps V.32bis

S37=11

Connect at 14.4Kbps V.32bis

S37=12

Connect at V.32bis 7200bps

S37=15

Connect at V.FC 14.4Kbps

S37=16

Connect at 16.8Kbps

S37=17

Connect at 19.2Kbps

S37=18

Connect at 1600bps

S37=19

Connect at 24.0Kbps

S37=20

Connect at 26.2Kbps

S37=21

Connect at 28.8Kbps

REPORT SIGNAL QUALITY

Type:

Configuration

Format:

AT [cmds] %Q [cmds]

Example:

AT %Q &W<CR>

Description:

Reports signal quality.

SLEEP TIMER

Format

AT [cmds] S24=n [cmds]

Example:

ATS24=40<CR>

Default:

10

Range:

0 - 255

Unit:

10 second

Description:

Maximum duration of DTE and DCE inactivity allowed prior to initiating low-power sleep mode.