Operation Manual

Troubleshooting
142
Analog Pre-distortion (APD) Amplifier Alarms
ID Name Class Severity Unit
1 AD Converter Fault 0x0104 Error APD
Description The analog to digital converter has failed. This is a hardware error.
NOC Actions Dispatch field tech to change the remote unit.
Field Actions Replace remote unit.
ID Name Class Severity Unit
2
EEPROM read or write
fault
0x0104 Error APD
Description
Reading from or writing to the EEPROM memory failed. This is a hardware
fault.
NOC Actions Dispatch field tech to change the remote unit.
Field Actions Replace remote unit.
ID Name Class Severity Unit
3 Calibration fault 0x0104 Warning APD
Description
The database holding the calibration data for the unit is corrupt. The unit may
need to be replaced but will work of default parameters.
NOC Actions
Schedule unit for replacement. Not imminent since the unit will work on
default parameters.
Field Actions Replace remote unit.
ID Name Class Severity Unit
4 DAC Fault 0x0104 Warning APD
Description The digital to analog converter has failed. This is a hardware fault.
NOC Actions Dispatch field tech to change the remote unit.
Field Actions Replace remote unit.
ID Name Class Severity Unit
5 I/O port 0x0104 Warning APD
Description The communications port may have failed on the board.
NOC Actions Dispatch field tech to change the remote unit.
Field Actions Replace remote unit.