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Raisecom
iTN2100 (P100R002) Hardware Description
15 PDH and RCMS cards
Raisecom Technology Co., Ltd.
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15.5.3 Interfaces
Interface types
There are four interfaces on the OPCOM3500E-120EOS×4 panel, as listed in Table 15-22.
Table 15-22
Interfaces on the OPCOM3500E-120EOS×4
Interface
Type
Description
A, B, C, D
1×9 optical interface
Service downlink interface
TX indicates sending and RX indicates receiving.
15.5.4 LEDs
There are 11 LEDs on the OPCOM3500E-120EOS×4 panel, as listed in Table 15-23.
Table 15-23
LEDs on the OPCOM3500E-120EOS×4 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,
and 1E-3 alarms are generated.
LPR (A–D)
Red
Optical interface A/B/C/D remote device LPR alarm LED
Red: after the local device and the remote device connected
to interface A, B, C, or D are connected and work properly,
LPR occurs on the remote device.
Off: the remote device connected to interface A, B, C, or D
is working properly.
LOS (A–D)
Red
Optical interface A/B/C/D LOS alarm LED
Red: input LOS alarms are generated on interface A, B, C,
or D.
Off: no input LOS alarms are generated on interface A, B,
C, or D.
Blinking green: input LOS alarms are generated on the
remote device connected to interface A, B, C, or D.