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SRM-8H (RJ-45)

RAD DATA COMMUNICATIONS

SRM-8H (RJ-45)

Card Type

Short Range Modem

Chip Set

Unidentified

I/O Options

25-pin DTE port, RJ-45 connector, terminal block

Wiring Type

Unshielded twisted pair

Maximum Data Rate

64Kbps

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

DTE serial port (25-pin connector)

CN1

Terminal block

CN3

RJ-45 connector

CN2

   

USER CONFIGURABLE SETTINGS

Setting

Label

Position

í 64Kbps connection speed enabled

SW2/4

Off

56Kbps connection speed enabled

SW2/4

On

í Asynchronous stop bit shortening set to 25%

SW2/5

Off

Asynchronous stop bit shortening set to 12.5%

SW2/5

On

í Carrier forced high

SW3/2

On

Carrier follows RTS signal

SW3/2

Off

í DTE control of analog loop disabled

SW3/3

Off

DTE control of analog loop enabled

SW3/3

On

í DTE control of remote digital loop disabled

SW3/4

Off

DTE control of remote digital loop enabled

SW3/4

On

LOOPBACK TEST SELECTOR

Function

SW1

Activates local analog loopback

1

Normal operation. Loopback not activated

2

Remote digital loopback initiated

3

TRANSMIT CLOCK SOURCE

Source

SW2/1

SW2/2

SW2/3

í Transmit clock generated internally

Off

Off

Off

Transmit clock derived from receive line signal

Off

Off

On

Transmit clock derived from terminal interface

On

Off

Off

Asynchronous mode enabled

Off

On

Off

CHARACTER LENGTH (ASYNC MODE)

Setting

SW2/6

SW3/1

8 bits

Off

Off

9 bits

Off

On

í 10 bits

On

Off

11 bits

On

On

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Green

On

Power is on

PWR

Green

Off

Power is off

TST

Red

On

Device is conducting a loopback test

TST

Red

Off

Device is not conducting a loopback test

CD

Yellow

On

Carrier signal high

CD

Yellow

Off

Carrier signal low

TD

Yellow

On

Device is transmitting data

TD

Yellow

Off

Device is not transmitting data