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SRM-31A

RAD DATA COMMUNICATIONS

SRM-31A

Card Type

Short Range Modem

Chip Set

Unidentified

I/O Options

25-pin DTE port, terminal block

Wiring Type

Unshielded twisted pair

Maximum Data Rate

115.2Kbps

Data Modulation Protocol

2B1Q

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

DTE serial port (25-pin connector)

CN1

Terminal block

CN2

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

LOS

Red

On

Loss of signal condition detected on network

LOS

Red

Off

Loss of signal condition not detected on network

TST

Red

On

Device is conducting a loopback test

TST

Red

Off

Device is not conducting a loopback test

RX

Yellow

On

Data is being received

RX

Yellow

Off

Data is not being received

TX

Yellow

On

Data is being transmitted

TX

Yellow

Off

Data is not being transmitted

PWR

Green

On

Power is on

PWR

Green

Off

Power is off