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CMN-C423/422

RAD DATA COMMUNICATIONS

CMN-C423/422

Card Type

Serial interface converter

Chipset

Unidentified

I/O Options

Serial port

Maximum Data Rate

19.2Kbps

Data Bus

Proprietary

CONNECTIONS

Function

Label

Function

Label

RS-423 DTE serial data port

CN1

Ground

SC1

RS-422 DCE serial data port

CN2

Test mode switch

SW1

USER CONFIGURABLE SETTINGS

Setting

Label

Position

Receive line connected with 100 ohm impedance

JP1

Pins 2 & 3 closed

 

Receive line not connected with 100 ohm impedance

JP1

Pins 1 & 2 closed

Test switch enabled

JP2

Pins 1 & 2 closed

 

Test switch disabled

JP2

Pins 2 & 3 closed

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Green

On

Power is on

PWR

Green

Off

Power is off

TD

Yellow

On

Modem is transmitting data

TD

Yellow

Off

Modem is not transmitting data

RX

Yellow

On

Modem is receiving data

RX

Yellow

Off

Modem is not receiving data

TST

Red

On

Modem is in test mode

TST

Red

Off

Modem is not in test mode

MISCELLANEOUS TECHNICAL NOTE

This card is intended for use in the CMN-16 rack-mount system. The bus is used only for supplying power for the card. All other card functions are accessed through the serial port.