Cisco Cisco OptoStar II 1550nm EDFA 설치 가이드
General Troubleshooting Information, Continued
Troubleshooting
If the red alarm indicator on the front panel of the module is illuminated, check
the OptoStar II ICIM display, the OptoStar II console, or the OptoStar II NMS for
alarm code. See Alarm Code List (on page 3-15) to determine the cause of the
alarm. See the table below.
the OptoStar II ICIM display, the OptoStar II console, or the OptoStar II NMS for
alarm code. See Alarm Code List (on page 3-15) to determine the cause of the
alarm. See the table below.
Alarm
Possible Cause Servicing Instruction
Low or High
RF Input
Level
Low or High
Low or High
RF Output
Level
RF source
failure
RF cable or
connector
failure
Make sure the RF connector matches
Make sure the cable works properly
Inspect if the RF input signal level
meets the specifications
The specifications are:
1. If the RF input signal has only an
The specifications are:
1. If the RF input signal has only an
analog signal, the analog signal
input level is 15 ± 5 dBmV/channel
at the broadcast RF input port.
Recommended input level: the
Recommended input level: the
analog signal is 15 dBmV/channel
at the broadcast RF input port.
2. If the RF input signal has both
analog signal and digital signal, the
analog signal input level is 15 ± 5
dBmV/channel at the broadcast RF
input port; digital signal input level
is 9 ± 5 dBmV/channel at the
broadcast RF input port; and digital
signal input level is 21 ± 5
dBmV/channel at the narrowcast
RF input port.
Recommended input level: the
Recommended input level: the
analog signal is 15 dBmV/channel
at the broadcast RF input port; the
digital signal input level is 9
dBmV/channel at the broadcast RF
input port; and the digital signal
input level is 21 dBmV/channel at
the narrowcast RF input port.
3. If the RF input signal has only
digital signal, the digital signal
input level is 15 ± 5 dBmV/channel
at the broadcast RF input port.
Recommended input level: the
Recommended input level: the
digital signal is 15 dBmV/channel
at the broadcast RF input port.
If the input level is normal, contact the
manufacturer for servicing
Continued on next page
4-4
Troubleshooting
OL-29667-02