7608 TRX Notification

Severity:	Object affected:	Object state:	Module/Unit:
Minor	TRX	Enabled	ECxx, ERxA, EXxA, EOCA
Fault reason:	Instruction:
ECxx RTC module incoming frame clock FCLK lost during runtime.	ECxx RTC module has detected that the Frame Clock coming from the ESMA System module is missing. Air3 loop services are unavailable. 1. Reset the BCF to allow ECxx to attempt resynchronisation to incoming FCLK. 2. Replace ECxx. 3. If alarm is raised for all ECxx modules connected to ESMA, replace ESMA.
ECxx RTC module loop synthesizer fails to lock.	The RF loop synthesizer in ECxx RTC module has not achieved phase lock state after several attempts. 1. Replace ECxx.
ERxx DDU module loop synthesizer fails to lock.	The RF loop synthesizer in ERxx DDU module has not achieved phase lock state after several attempts. 1. Replace ERxx.
ERxx DDU module SW upgrade impossible, unknown manufacturer.	EXxx TRX module cannot identify connected ERxx DDU module. 1. Download and activate the latest release of the BTS SW to the BTS site.
ESMA System module has lost connection to XEOCA Optical module.	EOCA Optical module is not responding to ESMA System module. 1. If on Local EOCA: 1.1 Check the bus cable, cable connectors between ESxx and Local EOCA. 1.2 Replace Local EOCA. 2. If on Remote EOCA: 2.1 Replace Remote EOCA. Note: If this alarm is starting and cancelling repeatedly then check input voltage supplied to alarming EOCA. Ensure that power supply provides voltage within 42V - 57.0V DC range.
EXxx TRX module cooling fan speed has increased from the set speed.	The cooling fan speed of TRX module has increased substantially from the commanded fan speed. 1. Check the ESMA operational voltage as an increased ESMA voltage could lead to overspeeding of the fans. 2. Replace the fan unit. 3. Replace EXxx.
EXxx TRX module cooling fan speed has reduced from the set speed.	The cooling fan speed has reduced substantially from the commanded fan speed. 1. Check that nothing obstructs the fan(s) from rotating. 2. Clean the fan unit of dust and/or dirt. 3. Replace the fan unit. 4. Replace EXxx. Note: If "Temperature high/dangerously high" and/or 7621 alarm(s) are also active, perform these actions as soon as possible.
EXxx TRX module temperature high.	EXxx TRX module has detected that its internal temperature has exceeded +90C/+194F. 1. Ensure that the ambient temperature of the base station is below +50C/+122F. 2. Check if any fan alarms are also active. If active, refer to fan alarm instructions to resolve. 3. Replace the EXxx. Note that this alarm remains active if the temperature still increases and the "temperature dangerously high" alarm is activated.
EXxx TRX module unable to read internal temperature sensors.	There is no temperature measurement in the EXxx TRX module. All temperature sensors inside the module are broken. Fans are rotating at maximum speed. 1. Replace the EXxx. Note: If fan alarm(s) are active at EXxx, perform this action as soon as possible.
OVP plug-in unit is damaged (of remote or local EOCA).	Replace the OVP plug-in unit.
Temperature inside XEOCA exceeds specified temperature range.	Internal temperature of EOCA Optical module has exceeded +85C/+185F. 1. Ensure that the ambient temperature of the base station is below +50C/+122F. 2. Check if fan alarm is also active. If active, refer to fan alarm instructions to resolve. 3. Replace the alarming EOCA.
XEOCA Optical module detected cooling fan speed degradation.	EOCA Optical module detected reduced or no rotation of fan against commanded speed. 1. Check that nothing obstructs the fan from rotating. 2. Clean the fan unit of dust and/or dirt. 3. Replace the fan unit. 4. Replace the alarming EOCA. Note: If temperature alarms are also active, perform these actions as soon as possible.
XEOCA Optical module detected over current on its output power port(s).	Over current occured on the output power port(s) of Remote EOCA Optical module. Affected EXxx TRX module(s) are powered down. 1. Check the power cable between Remote EOCA and EXxx. 2. Replace EXxx. 3. Replace Remote EOCA.
XEOCA Optical module detected temperature sensor problem.	There is no temperature measurement in the EOCA Optical module. All temperature sensors inside the module are broken. The fan is rotating at maximum speed. 1. Replace the alarming EOCA. Note: If EOCA fan alarm is active, perform this action as soon as possible.