Andrew Wireless Innovations Group BCEL-FAST900 User Manual

Page 18  of 28

 

 

The system is designed to be powered by standard telecom voltage  –48VDC. The power 
consumption is 12W for the TFAF. The supply connector part name is MOLEX 5569-03.  A 
connectorized jumper is shipped with each remote unit. 
 

ü  WARNING: The system is connected POSITIVE to GROUND. Grounding connections must be carefully managed 

 
 
 
 
 

 
 
 

Figure 14  DC Power Connections for Remote Unit TLAF 

 
 

The RF port is a duplexed N-female connector. A DC loop mechanism is implemented to detect 
a broken cable or a disconnected antenna.  To perform this functionality a DC loop antenna 
must be used. If the DC loop functionality cannot be used, follow the “store” procedure in the 
TFLF to mask the DC loop alarm. 
 

ü  WARNING: If passive distribution is used after the remote unit, verify that passive splitters can be DC loop 

ü  WARNING: Both RF ports are supplied with a DC current of 2mA(max) @5Volts.  

 
 
 
 
 

 

 

 

Figure 15 Remote Unit TFAF RF Connectors 

 
 

Optical connectors need to have proper alignment and mechanical support. When inserting an 
optical connector, take care to handle it carefully to avoid damage to the fibre. Remove the dust 
cap only prior to making connections. 
 

ü  Do not force or stretch the fibre pigtail with curve radius less than 5 cm. 
ü  See Figure 16 for optimal fibre cabling.   

 
 

Blue NEGATIVE –48VDC 

Black GROUND 0V