User's Manual

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B. Not Opterate OPTIC Comp: Optic Comp is not executed.
C. Lack of ATT: There is no attenuation available.
Use various upper/lower limits. The following table shows recommended limit settings:
Item Recommended Limit Remark
TX OUTPUT HIGH ALM Max Composit Power+1dB Alarm
TX OUTPUT LOW ALM 0dBm Alarm
TX OUTPUT ALC Max Composit Power Auto Level control
TX OUTPUT SD Max Composit Power+2dB Shutdown
RX ALC -45dBm
If TX OUTPUT HIGH ALM is higher than a setting value, alarms will be genrated.
If TX OUTPUT LOW ALM is lower than a setting value, alarms will be genrated. TX OUTPUT
HIGH ALM/LOW ALM tends to work only as warning.
When you activate (“ON”) TX OUTPUT ALC, outputs will be restricted depending on a setting
output value.
When you activate (“ON”) TX OUTPUT SD, output will be turned OFF once output power level
reaches the same as SD setting value. Upon SD operation, check output level after 10 minutes
and then check the status again.
When you activate (“ON”) RX ALC, inputs will be restricted depending on a setting value.
As described above, when normal output level and alarm limit values are set, you need to check
if the value of MODULE FAILUER LED Indicator is normally seen green.
For unused bands, you need to use band turning-ON/-OFF function to turn them off. Once a
RDU band is turned off, its status value will not be used in case of alarms.
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6.3 OEU Operation
The figure below shows the level of the system link of SMDR-NH124 (BIU-ODU-OEU-ROU).
This section describes OEU-related information. OEU receives various signals through optical
modules. The optical signals are converted to RF signal and the RF signal also is amplified to
moderate signal level. To transmit to ROU, the signal is converted to optical signal