Andrew Wireless Innovations Group BCP-TFAM23 Manuel D’Utilisation

MN024-04

x Check that power supply voltage selector is in the correct position (115 or 230 VAC). In 

passive distribution version this selector is not present. 

x Have all the switches in OFF position 
x Check the connection polarity is not wrong 
x

P

ower on the TRS/TRSN unit through the back general switch 

x Power on each remote unit through the front panel switches 
x Check if the remote units shows the proper green supply led ON 

If the remote unit doesn't appear to be properly supplied  
x Check the fuses on the rear panel 
x Check the voltage at the front panel screw connectors: nominal value without load is -59VDC, 

nominal value with full load is -48VDC. If Those values are exceeded by 10% check the if the 
mains are within the allowed limits. In passive distribution version, the output voltage depends 
on the supply source. 

x Check the voltage at the remote side it should be in the range -36 to -72 VDC that is the 

maximum allowed range admitted by the remote units. 

If the protection switch jump always in OFF position 
x Check if any short on the line 
x Check if the remote unit shows the nominal current power consumption. 
x Check if any long period overshooting related to the mains supply. 

If the fuses blow up after a power-on with all the front switches ON, there should be a too high 
initial peak current transient: check the proper fuse  (delayed type) or substitute with an higher 
current fuse (i.e. 6A or 10 A). If the problem still persists check the proper ground /mains 
connection.