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Raisecom
iTN2100 (P100R002) Hardware Description
15 PDH and RCMS cards
Raisecom Technology Co., Ltd.
177
15.10.3 Interfaces
Interface types
There are four interfaces on the OPCOM3500E-120H×4 (Versions A and B) panel, as listed in
Table 15-52.
Table 15-52
Interfaces on the OPCOM3500E-120H×4 (Versions A and B),
Interface
Type
Description
A–D
(version A)
1×9 optical interface
Service downlink interface
TX indicates sending and RX indicates receiving.
1–4
(Version B)
SFP optical
interface
Service downlink interface
TX indicates sending and RX indicates receiving.
15.10.4 LEDs
There are 11 LEDs on the OPCOM3500E-120H×4 (Versions A and B), and the LEDs have
the same functions on the two versions, as listed in Table 15-53.
Table 15-53
LEDs on the OPCOM3500E-120H×4 (Versions A and B) 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.
ALM
Red
Office overall alarm LED
Red: one or more of TU-AIS, TU-LOP, E1-LOS, optical
interface LOF, and 1E-3 alarms are generated on local
optical interfaces A, B, C, or D.
Off: no TU-AIS, TU-LOP, E1-LOS, optical interface LOF,
or 1E-3 alarms are generated.
LPR (A–D)
LPR (1–4)
Red
Related interface remote device LPR alarm LED
Red: after the local device and the remote device connected
to the related interface are connected and work properly,
LPR occurs on the remote device.
Off: the remote device connected to the related interface is
working properly.