4
OPERATION
Front Panel Operation
LEDs
Front Panel LED Indicators
Power
Off Unit is unpowered
Red Self Test failure
Green
Unit is powered and
operational
Blinking Red Configuration conflict***
Red Alarm
Red T1 LOS
Blinking Red
T1 OOF
Configuration conflict***
Slow Blinking Red T1 AIS
Yellow Alarm Yellow T1 Yellow Alarm detected
Data
Green Valid Data is Present
Blinking Green
Network Set, Reset or
Test code is detected
Red Test Active
Blinking Red
Network BPV’s or
CRC errors
Configuration conflict***
TxD Yellow Receiving data from DTE
RxD Yellow Transmitting data to DTE
CTS Yellow Clear to Send asserted
RTS Yellow
Request to Send
asserted
***In the event of a configuration conflict the D-SERV unit will flash the front
panel POWER, RED ALARM, and DATA LEDs red until the configuration error
is corrected by the operator.
Operator's Manual
36
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