User's Manual

Corning Restricted - Draft for public release
Appendix A: System Specifications
CMA-XXX-AEN
Page 53
RF Adjustment
HX 2.5GHz TDD UNIT shall be capable of performing DL RF adjustment upon user request.
Adjustment targets shall be user-configurable within valid working range according to MRD (19 to 34dBm)
A change in adjustment target value shall set "Adjustment Result" to "N/A" (regardless previous adjustment result was
"Success" or "Fail")
HX2500-TDD UNIT shall be able to perform successful DL RF adjustment upon the following conditions:
- input power to OCH unit shall be -20dBm on OPTM DL port during calibration
- Optical loss on optical connection is within valid loss range defined
- Successful adjustment shall comply with target RF output power set by user
- Successful adjustment shall update time and date for adjusted device
- Upon failure in adjustment process DCA value shall revert to default state or last good known configuration if
available, adjustment date shall be N/A
- Failure in adjustment shall include the information:
- For failure due to overpower : “Adjustment failed due to over power, power exceed max value by (calculate
gap between desired value and achieved value)
- For failure due to under power : “Adjustment failed due to under power, power exceed max value by (calculate
gap between desired value and achieved value)
Units that was never adjusted shall display N/A in adjustment information fields
#
Alarm name
Severity
Raise
Clear
Event
SNMP
LED
1
DL RF Under
Power
Major
(RF Power reading)
< (Max output
power -20)
(Max output power -18)
< (RF Power reading) <
(Max output)
yes yes service
2
DL RF Over
power
Major
(RF Power reading)
> (Max output
power +2)
(RF Power reading) <
(Max output)
yes yes service
3
DL RF Over
power
protection
Major
(RF Power reading)
> (Max output
power +3)
(RF Power reading) <
(Max output)
yes yes service
4
DL RF
Adjustment
Minor
DL RF Adjustment =
Fail
DL RF Adjustment =
Success / NA
yes yes service