HwMuseum | Index

WESTERMO TELEINDUSTRI AB

LD-01

Card Type

Modem

Chip Set

Unidentified

I/O Options

9-pin serial port (RS-232), terminal blocks (3)

Data Modulation Protocol

ITU-T V.24/V.28

Wiring Type

Unshielded twisted pair

Maximum Data Rate

38.4Kbps

Data Bus

External

CONNECTIONS

Function

Label

Function

Label

9-pin DCE serial port - channel 1

CN1

DCE serial port - channel 4

CN4

DCE serial port - channel 2 (5 pole terminal block)

CN2

AC power (3 pole terminal block)

CN5

DCE serial port - channel 3

CN3

   

Note: CN3 & CN4 are separate serial interfaces on a 9 pole terminal block

USER CONFIGURABLE SETTINGS

Function

Label

Position

10mA balance current loop enabled on channel 2

J1

Pins 2 & 3 closed

RS-232-C/V.24 interface enabled on channel 2

J1

Pins 1 & 2 closed

10mA balance current loop enabled on channel 3

J2

Pins 2 & 3 closed

RS-232-C/V.24 interface enabled on channel 3

J2

Pins 1 & 2 closed

í Factory configured - do not alter

S1/3

Off

í Factory configured - do not alter

S1/4

Off

MASTER/SLAVE CONFIGURATION

Setting

S1/1

S1/2

í Communication between all units enabled

On

On

Communication between masters and slaves enabled

Off

Off

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Unidentified

On

Power is on

PWR

Unidentified

Off

Power is off

RD

Unidentified

On

Modem is receiving data

RD

Unidentified

Off

Modem is not receiving data

TD

Unidentified

On

Modem is transmitting data

TD

Unidentified

Off

Modem is not transmitting data

DCD2

Unidentified

On

Data carrier present on channel 2

DCD2

Unidentified

Off

Data carrier not present. Connection not established on channel 2

DCD3

Unidentified

On

Data carrier present on channel 3

DCD3

Unidentified

Off

Data carrier not present. Connection not established on channel 3

DCD4

Unidentified

On

Data carrier present on channel 4

DCD4

Unidentified

Off

Data carrier not present. Connection not established on channel 4