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14.4 VOICE/FAXMODEM EXTERNAL

MAXTECH CORPORATION

14.4 VOICE/FAXMODEM EXTERNAL

Card Type

Modem(synchronous/asynchronous)

Chip Set

Unidentified

I/O Options

Voice

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.21, V.22, V.22bis, V.32, V.32bis

Fax Modulation Protocol

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

Error Correction/Compression

MNP5, V.42, V.42bis

CONNECTIONS

Function

Label

Function

Label

Line in

CN1

DC power

CN4

Line out

CN2

Power switch

SW1

RS-232/422

CN3

   

USER CONFIGURABLE SETTINGS

Setting

Label

Position

í AT commands enabled

JP1

Pins 2 & 3 closed

AT commands disabled

JP1

Pins 1 & 2 closed

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

TST

Red

On

Normal operation

TST

Red

Blinking

Error detected and corrected

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

See document V1788 for a full command summary.