TTC PCM30U - LED Indication; E.1.9 LED Indication

PCM30U, PCM30U-OCH – User's, Operating and Maintenance Manual
E.1.9 LED indication
E.1.9.1 LED - PWA variant
PBS
ERR - Urgent alarm
Red
• Transmission
protocol error
• Identification error
• Opposite PBS error
(duplex mode)
Red –
flashing
quickly
• Invalid
configuration
Red –
flashing
slowly
• Not specified
TEST
Orange
• Test in
progress
Orange -
flashing
• Test error
PWR
Green
• Operational
state
Dark • No power or
“out of order!
LM – GREEN
Activity at LM interface
1, 2
Green Line interfaces in
operational state
Yellow • High BER, slip at
line interface 1,2
Yellow -
flashing
• Loop at line
interface 1,2
• Laser
permanently ON
Red Loss of signal
IN
Orange
• Input command
active
Orange
and test
• Command being
tested
Orange –
flashing
and TEST
• Test error at this
command
OUT
Orange
• Output command
active
Orange
and test
• Command being
tested
Orange –
flashing
and TEST
• Test error at this
command
E2 – other alarms
Red
• Single bit error (light
prolonged to 100 ms)
• -48 V DC for relays
and bias source below
threshold
• Opposite PBS error
(simplex mode)
Yellow
flashing
Service alarm
• Data signal loop
detected
Green Not specified
Power Channel Modules E-21 446S037.914.14N00