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FOM-E3, FOM-T3 (AC POWER, FC CONNECTORS)

RAD DATA COMMUNICATIONS

FOM-E3, FOM-T3 (AC POWER, FC CONNECTORS)

Card Type

T3 or E3 CSU/DSU

Chipset

Unidentified

Wire Type

Fiber optic cable

Transfer Rate

34.368Mbps (FOM-E3) or 44.736Mbps (FOM-T3)

Protocol

B8ZS, HDB3

Frame Type

Unidentified

Data Bus

N/A

CONNECTIONS

Function

Label

Function

Label

T1 fiber optic receive FC connector

CN1

T1 signal out via 75ohm coaxial cable connector

CN4

T1 fiber optic transmit FC connector

CN2

Alarm signal connector

CN5

T1 signal in via 75ohm coaxial cable connector

CN3

AC power in

CN6

USER CONFIGURABLE SETTINGS

Setting

Label

Position

Signal ground connected to chassis ground

JP3

Pins 1 & 2 closed

 

Signal ground not connected to chassis ground

JP3

Pins 2 & 3 closed

Coaxial cable length may be up to 225 feet

JP5

Pins 1 & 2 closed

 

Coaxial cable length may be up to 450 feet

JP5

Pins 2 & 3 closed

Device will transmit All Ones Signal when major alarm is detected

JP8

Pins 1 & 2 closed

 

Device will transmit nothing when major alarm is detected

JP8

Pins 2 & 3 closed

TEST MODE

Setting

SW4

Normal operation

Position 2

 

Local loopback test

Position 1

 

Remote loopback test

Position 3

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

PWR

Green

On

Power is on

PWR

Green

Off

Power is off

LOC

Yellow

On

Device is in local loopback test mode

LOC

Yellow

Off

Device is not in local loopback test mode

REM

Yellow

On

Device is in remote loopback test mode

REM

Yellow

Off

Device is not in remote loopback test mode

LOW

Red

On

Electrical input signal is below valid signal level

LOW

Red

Off

Electrical input signal is within valid signal levels

AIS1

Yellow

On

All Ones Signal received on electrical interface

AIS1

Yellow

Off

All Ones Signal not received on electrical interface

ERR

Red

On

Bit Error Rate of optical interface is 10 -6 or worse

ERR

Red

Off

Bit Error Rate of optical interface is better than 10 -6

AIS2

Yellow

On

All Ones Signal received on fiber optic interface

AIS2

Yellow

Off

All Ones Signal not received on fiber optic interface