COMPUTER PERIPHERALS, INC.

VIVA 24 EXTERNAL

Modem Type

Data (asynchronous)

Maximum Data Rate

2400bps

Data Bus

External

Data Modulation Protocol

Bell 103A/212A

ITU-T V.21, V.22, V.22bis

Error Correction/Compression

MNP5, 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

HS

Red

On

Modem is operating at 2400bps

HS

Red

Off

Modem is operating at slower than 2400bps

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

Blinking

Loopback tests enabled

MR

Red

On

Power is on

MR

Red

Off

Power is off

Note: The LEDs are Icons.

Proprietary AT Command Set

See document V1610 for a full command summary.