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Raisecom
iTN2100 (P100R002) Hardware Description
7 SDH tributary cards
Raisecom Technology Co., Ltd.
43
LED
Status
Description
SYS
Green
System status LED
Green: the system is working improperly.
Off: the system is working improperly.
Blinking green: the system is working properly.
LOF (1–4)
Red
LOF alarm LED
Red: input Loss of Frame (LOF) alarms are generated on
related optical interfaces.
Off: no input LOF alarms are generated on related
optical interfaces.
LOS (1–4)
Red
LOS alarm LED
Red: input Loss of Signal (LOS) alarms are generated on
related optical interfaces.
Off: no input LOS alarms are generated on related
optical interfaces.
7.2.5 Alarms
Table 7-12 lists alarms of the OPCOM3500E-4STM1-S.
Table 7-12
Alarms of the OPCOM3500E-4STM1-S
Alarm
Cause
Level
RS-LOS
Attenuation of received signals is over great.
The peer sender fails.
The connector of fiber is dirty or improperly connected.
The local receiver fails.
Critical
RS-LOF
The TX clock of the peer device fails.
Optical signals do not match.
The local receiving referential clock fails.
Critical
RS-TIM
The received trace byte of the local device and the sent
trace byte of the peer device are inconsistent.
Services are improperly configured.
Critical
AU-AIS
The AU-AIS alarm of the VC4 channel is triggered by MS-
AIS, R-LOS, R-LOF alarms.
Services are improperly configured.
The peer device sends AU-AIS alarms.
The TX part of the peer device or the RX part of the local
device fails.
Minor
AU-LOP
The RX part of the peer device fails.
Services are improperly configured on the peer device.
Bit Error Rate (BER) of the local device is over great.
Critical
MS-EXC
BER in the multiplexing section is over high.
Optical signals are improperly transmitted.
The performance of the local card is bad.
Major