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Raisecom
iTN2100 (P100R002) Hardware Description
15 PDH and RCMS cards
Raisecom Technology Co., Ltd.
145
15.3.3 Interfaces
Interface types
There are two interfaces on the OPCOM3500E-P240EOS, as listed in Table 15-14.
Table 15-14
Interfaces on the OPCOM3500E-P240EOS panel
Interface
Type
Description
A, B
1×9 optical interface
Service downlink interface
TX indicates sending and RX indicates receiving.
Interfaces A and B are in 1+1 protection switchover
mode for each other.
15.3.4 LEDs
There are 18 LEDs on the OPCOM3500E-P240EOS panel, as listed in Table 15-15.
Table 15-15
LEDs on the OPCOM3500E-P240EOS panel
Interface Status
Description
PWR
Green
Power LED
Green: the power supply is normal.
Off: the power supply is abnormal.
SYS
Green
System status LED
Green: the system is working improperly.
Off: the system is working improperly.
Blinking green: the system is working properly.
LPR
Red
Remote device LPR alarm LED
Red: the remote device connected to the PDH interface is
powered off.
Off: no LPR occurs on the remote device connected to the PDH
interface.
ALM
Red
Alarm LED
Red: LOF, 10-3, or 10-6 alarms are generated on the PDH
optical interface, or TU-AIS and TU-LOP alarms are generated
on the lower order path.
Off: no LOF, 10-3, or 10-6 alarms are generated on the PDH
optical interface, or no TU-AIS or TU-LOP alarm are generated
on the lower order path.
WKA (L)
Green
Local optical interface A working LED
Green: local optical interface A is the working interface.
Off: local optical interface A is not the working interface.
WKA (R)
Green
Remote optical interface A working LED
Green: remote optical interface A is the working interface.
Off: remote optical interface A is not the working interface.