SIIG, INC.

DASH 28.8I FAX/MODEM EXTERNAL

Modem Type

Data (synchronous/asynchronous)/Fax

Maximum Data Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

External

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.21CH2, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

CONNECTIONS

Purpose

Location

Purpose

Location

Line out

CN1

Power switch

SW1

Line in

CN2

Data/Voice

SW2

RS-232/422

CN3

Answer/Originate

SW3

AC power

CN4

   

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PW

Red

On

Power is on.

PW

Red

Off

Power is off

TR

Red

On

DTR signal is high

TR

Red

Off

DTR signal is low

CS

Red

On

CTS signal is high

CS

Red

Off

CTS signal is low

TD

Red

Blinking

Modem is transmitting data

TD

Red

Off

Modem is not transmitting data

CD

Red

On

Carrier signal detected

CD

Red

Off

Carrier signal not detected

RD

Red

Blinking

Modem is receiving data

RD

Red

Off

Modem is not receiving data

AA

Red

On

Auto-answer enabled

AA

Red

Off

Auto-answer disabled

AA

Red

Blinking

Phone is ringing

OH

Red

On

Modem is off-hook

OH

Red

Off

Modem is on-hook

Proprietary AT Command Set

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

Auto-retrain disabled.

%E1

Auto-retrain enabled.

%E2

Fallback/fall forward enabled.

BIT-MAPPED REGISTERS

Register

Default

S14

138

S16

0

S21

0

S23

54

S27

9

S28

0

S31

2

S36

7

S40

105

S41

3

S82

128

S91

10

S92

10

S95

0

S201

58

BREAK TYPE

Type:

Configuration

Format:

AT [cmds] \Kn [cmds]

Example:

AT \K1<CR>

Description:

Configures action of break signal.

Command

Break from DTE

Break received from remote modem

\K0

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

Buffers cleared, break sent to DTE.

\K1

Break sent to remote modem and buffered cleared.

Buffers cleared, break sent to DTE.

\K2

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

Break sent immediately to DTE.

\K3

Send break to remote modem immediately.

Break sent immediately to DTE.

\K4

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

Break sent with received data to the DTE.

\K5

Send break with transmitted data.

Break sent with received data to the DTE.

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

Serial interface enabled

\N2

Reliable mode enabled.

\N3

Auto-reliable mode enabled.

\N4

LAPM mode enabled.

\N5

MNP mode enabled.

FLOW CONTROL CHARACTER - XON

Type:

Register

Format:

AT [cmds] S32=n [cmds]

Example:

AT S32=20<CR>

Default:

17

Range:

0 - 255

Unit:

ASCII

Description:

Sets the character used to represent XON.

FLOW CONTROL CHARACTER - XOFF

Type:

Register

Format:

AT [cmds] S33=n [cmds]

Example:

AT S33=20<CR>

Default:

19

Range:

0 - 255

Unit:

ASCII

Description:

Sets the character used to represent XOFF.

HDLC ADDRESS

Type:

Register

Format:

AT [cmds] S20=n [cmds]

Example:

AT S20=6<CR>

Default:

0

Range:

0 - 255

Unit:

N/A

Description:

Sets the HDLC address/BSC character.

DISPLAY LINE SIGNAL LEVEL

Type:

Immediate

Format:

AT [cmds] %L [cmds]

Example:

AT %L &W<CR>

Description:

Displays a value of the received line signal level.

DISPLAY LINE SIGNAL QUALITY

Type:

Immediate

Format:

AT [cmds] %Q [cmds]

Example:

AT %Q &W<CR>

Description:

Displays line signal quality.

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.

MODULATION SELECTION

Type:

Configuration

Format:

AT [cmds] +MS=xx,y,zzz,aaa [cmds]

Example:

AT +MS11,1,300,28800 &W<CR>

Description:

Sets options for active protocol. The transfer rates specified by z and a must be valid for the protocol selected.

Command

Function

x=0

V.21

x=1

V.22

x=2

V.22bis

x=3

V.23

x=9

V.32

x=10

V.32bis

x=11

V.34

x=64

Bell 103A

x=69

Bell 212A

x=74

V.FC

y=0

Automode disabled.

y=1

Auto-detect highest speed enabled.

z, a=300

Set minimum or maximum transfer rate at 300bps, respectively.

z, a=1200

Set minimum or maximum transfer rate at 1200bps, respectively.

z, a=2400

Set minimum or maximum transfer rate at 2400bps, respectively.

z, a=4800

Set minimum or maximum transfer rate at 4800bps, respectively.

z, a=7200

Set minimum or maximum transfer rate at 7200bps, respectively.

z, a=9600

Set minimum or maximum transfer rate at 9600bps, respectively.

z, a=12000

Set minimum or maximum transfer rate at 12000bps, respectively.

z, a=14400

Set minimum or maximum transfer rate at 14400bps, respectively.

z, a=16800

Set minimum or maximum transfer rate at 16800bps, respectively.

z, a=19200

Set minimum or maximum transfer rate at 19200bps, respectively.

z, a=21600

Set minimum or maximum transfer rate at 21600bps, respectively.

z, a=24000

Set minimum or maximum transfer rate at 24000bps, respectively.

z, a=26400

Set minimum or maximum transfer rate at 26400bps, respectively.

z, a=28800

Set minimum or maximum transfer rate at 28800bps, respectively.

MODULATION SELECTION DISPLAY

Type:

Immediate

Format:

AT [cmds] +MS?

Example:

AT &V +MS?<CR>

Description:

Displays modulation, automode, minimum rate and maximum rate settings

V.42 HANDSHAKE OPTIONS

Type:

Register

Format:

AT [cmds] S48=n [cmds]

Example:

AT S48=7<CR>

Default:

7

Range:

0, 7, or 128

Description:

Controls the V.42 handshake sequence.

Command

Function

S48=0

V.42 negotiation disabled.

S48=7

V.42 negotiation enabled.

S48=128

V.42 disabled; fallback according to S36.