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GM144E

MAXTECH CORPORATION

GM144E

Modem Type

Data (synchronous/asynchronous)/Fax

Maximum Data Rate

14.4Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

External

Fax Class

Class I & II

Data Modulation Protocol

Bell 103A/212A

ITU-T V.22, V.22bis, V.32, V.32bis

Fax Modulation Protocol

ITU-T V.17, V.21CH2, V.27ter, V.29

Error Correction/Compression

MNP 5, V.42, V.42bis

CONNECTIONS

Purpose

Location

Purpose

Location

Line out

CN1

DC power

CN4

Line in

CN2

Power switch

SW1

RS-232/422

CN3

   

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

TST

Red

On

Normal operation

TST

Red

Flash

Modem has detected and corrected error

HS

Red

On

Modem is operating at 4800bps or faster

HS

Red

Off

Modem is operating at slower than 4800bps

AA

Red

On

Auto-answer enabled

AA

Red

Off

Auto-answer disabled

AA

Red

Blinking

Phone is ringing

CD

Red

On

Carrier signal detected

CD

Red

Off

Carrier signal not detected

OH

Red

On

Modem is off-hook

OH

Red

Off

Modem is on-hook

RD

Red

On

Modem is receiving data

RD

Red

Off

Modem is not receiving data

SD

Red

On

Modem is transmitting data

SD

Red

Off

Modem is not transmitting data

TR

Red

On

DTR signal is high

TR

Red

Off

DTR signal is low

MR

Red

On

Power is on

MR

Red

Off

Power is off

Proprietary AT Command Set

AUTO-RELIABLE TIME BUFFER CONFIGURATION

Type:

Configuration

Format:

AT [cmds] $An [cmds]

Example:

AT $A1 &W<CR>

Description:

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

í Command

Function

$A0

Data is discarded.

í $A1

Data is buffered.

CALLBACK ATTEMPTS

Type:

Register

Format:

AT [cmds] S16=n [cmds]

Example:

ATS16=6<CR>

Default:

4

Range:

1-255

Unit:

1 attempt

Description:

Sets the maximum number of login attempts after initial callback connection.

FAILED PASSWORD ATTEMPTS

Type:

Register

Format:

AT [cmds] S26?

Example:

ATS26?<CR>

Default:

Read-only

Range:

0-255

Unit:

1 attempt

Description:

This register stores the number of failed password attempts.

DISTINCTIVE RING

Format

AT [cmds] S101=n [cmds]

Example:

ATS101=40<CR>

Default:

0

Range:

0 - 255

Unit:

Bit-mapped

Description:

 

Bit

í Value

Function

0

0

í 1

Do not respond to ring type A.

Respond to ring type A.

1

í 0

Not used.

2

0

í 1

Do not respond to ring type C.

Respond to ring type C.

3

0

í 1

Do not respond to ring type D.

Respond to ring type D.

4

0

í 1

Do not respond to ring type E.

Respond to ring type E.

5

í 0

Not used.

6

0

í 1

Do not respond to ring type G.

Respond to ring type G.

7

0

í 1

Report RING for all ring types.

Report RING n where n is the ring type.