Andrew Wireless Innovations Group BCEL-FAST719 User Manual

Page 14  of 28

 

 

 
 
 
 
 

UL AGC out of range 

RU1, 2, 3, or 4 

Flashing 

MINOR 

Optical power below –4dBm: 
check for fiber or splices 
stresses, clean optical 
connectors 

UL optical power too low  

RU1, 2, 3, or 4 

Fixed 

MAJOR 

Low optical power below –6 
dBm: check for fiber or splices 
stresses, clean optical 
connectors 

If TFAF has faulty laser, 
replace TFAF 

DL laser optical power too low  

LU 

Fixed 

MAJOR 

Laser failure: replace TFLF 

UL RF amplifier  

LU 

Fixed 

MAJOR 

Internal failure: replace TFLF 

DL RF amplifier  

LU 

Fixed 

MAJOR 

Internal failure: replace TFLF 

Temperature alarm 

LU 

Flashing 

MINOR 

External temperature too high: 
check air circulation 

Supply alarm 

LU 

Fixed 

MAJOR 

Internal failure: replace TFLF 

REMOTE UNIT ALARM DESCRIPTION 

DL AGC out of range 

RU1, 2, 3, or 4 

Flashing 

MINOR 

Optical power  below –4dBm: 
check for fiber or splices 
stresses, clean optical 
connectors 

DL optical power too low  

RU1, 2, 3, or 4 

Fixed 

MAJOR 

Optical power below –6dBm: 
check for fiber or splices 
stresses, clean optical 
connectors 

DL RF amplifier 1  

RU1, 2, 3, or 4 

Fixed 

MAJOR 

Internal failure: replace TFAF 

DL RF amplifier 2  

RU1, 2, 3, or 4 

Fixed 

MAJOR 

Internal failure: replace TFAF 

Antenna disconnected 

 (DC loop) 

RU1, 2, 3, or 4 

Flashing 

MINOR 

Antenna cable probably broken 
or disconnected. 

Antenna connected to TFAF 
doesn’t support DC-loopà see 
store procedure to mask 
unwanted alarm 

External 1 

RU1, 2, 3, or 4 

Fixed 

MAJOR 

External alarm 1 

External 2 

RU1, 2, 3, or 4 

Fixed 

MAJOR 

External alarm 2 

 

NOTE: All major alarms will trigger the dry contacts to “closed” status.