MOTOROLA, INC.

3261/3266

Modem Type

Data (synchronous/asynchronous)

Maximum Data Rate

14.4Kbps

Data Bus

External

Data Modulation Protocol

Bell 103A/212A

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

Error Correction/Compression

MNP5, V.42, V.42bis

Motorola Codex

CONNECTIONS

Purpose

Location

Purpose

Location

RETURN button

BT1

Leased line out

CN3

DOWN button

BT2

120VAC power

CN4

ACROSS button

BT3

RS-232/422

CN5

ENTER button (Talk/Data)

BT4

Network control out

CN6

Switched line out

CN1

Network control in

CN7

Line in

CN2

Power switch

SW1

ELECTRICAL INTERFACE SELECTION

Interface

SW2/1

» EIA/TIA 232-D

On

ITU-T V.35

Off

TEST/BUSY OUT ON PIN 25

Mode

SW2/2

» Enable busy out when pin 25 is high

Off

Self test is in progress when pin 25 is high

On

FRONT PANEL CONFIGURATION

Mode

SW2/3

» Front panel enabled

Off

Front panel disabled

On

RESET MEMORY

Mode

SW2/4

» Normal operation

Off

Reset modem to factory settings

On

COMMAND SETS

Mode

SW2/5

» Command sets enabled

Off

Command sets disabled

On

FACTORY CONFIGURED - DO NOT ALTER

Switch

Position

SW2/6

Off

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

RD

Red

On

Modem is receiving data

RD

Red

Off

Modem is not receiving data

TR

Red

On

DTR signal is high

TR

Red

Off

DTR signal is low

RI/OH

Red

On

Switched line is off-hook or is ringing

RI/OH

Red

Off

Switched line is on-hook and is not ringing

TD

Red

On

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

RC/NC

Red

On

Modem is under remote or network control

RC/NC

Red

Off

Modem is under local control

Proprietary AT Command Set

See document V1280 for a full command summary.