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MA-12

WESTERMO TELEINDUSTRI AB

MA-12

Card Type

Modem

Chip Set

Unidentified

I/O Options

AC power, 25-pin serial port, network interface via terminal block

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

AC power

CN1

25-pin serial port

CN3

UTP interface (terminal block)

CN2

   

USER CONFIGURABLE SETTINGS

Setting

Label

Position

115V AC enabled

S2

On

230V AC enabled

S2

Off

CARRIER CONTROL

Setting

S1/1

S1/2

S1/3

S1/4

S1/5

S1/6

í Carrier forced high

Off

On

Off

Off

Off

Off

Carrier activated by AUX

Off

On

On

Off

Off

Off

Carrier activated by SRS

Off

On

Off

On

Off

Off

Carrier activated by RFR

Off

On

Off

Off

On

Off

Carrier activated by RTS

Off

On

Off

Off

Off

On

Carrier activated by DTR

On

Off

Off

Off

Off

Off

Carrier activated by DTR and AUX

On

Off

On

Off

Off

Off

Carrier activated by DTR and SRS

On

Off

Off

On

Off

Off

Carrier activated by DTR and RFR

On

Off

Off

Off

On

Off

Carrier activated by DTR and RTS

On

Off

Off

Off

Off

On

CLEAR TO SEND CONTROL

Setting

S1/7

S1/8

S1/9

í CTS controlled by RTS

On

Off

Off

CTS forced high

Off

On

Off

CTS follows DCD

Off

Off

On

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

RTS

Unidentified

On

RTS signal is high

RTS

Unidentified

Off

RTS signal is low

DCD

Unidentified

On

Data carrier present

DCD

Unidentified

Off

Data carrier not present. Connection not established