TTC PCM30U - Page 23

PCM30U, PCM30U-OCH – User's, Operating and Maintenance Manual
E.1.9.2 LED - Channel module variant 2 LED - Channel module 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
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
IN
Orange
• Input command
active
Orange
and test
• Command being
tested
Orange –
flashing
and TEST
• Test error at this
command
TEST
Orange
• Test in
progress
Orange -
flashing
• Test error
PWR
Green
• Operational
state
Dark • No power or
“out of order!
Power Channel Modules E-22 446S037.914.14N00