User's Manual

UHF Fibre-Fed Remote Site
User Handbook
Handbook N.-60-137601HBK Issue No:-1
Date:-18/03/2005
Page:-
36 of 38
4.8 DC/DC Converter, 24V in, 12V 8A out (13-003011)
4.8.1 Description
The DC/DC converter fitted is a high power modular unit with a 5 amp @ 12V output
capability. The circuit is basically an O.E.M semiconductor regulator (one side of which has
a heatsink mounting plate, usually bolted to the casing of a Cell Enhancer/rack shelf) with
screw block terminations.
Note: no circuit diagram of the O.E.M. regulator is available. This unit should not be
repaired, only replaced.
4.8.2 Technical Specification
PARAMETER SPECIFICATION
Input Voltage Range: 18-36V DC
Output Voltage: 12V±0.5V
Max. Current Load: 5.0Amps (100Watts)
operation
:
-10°C to +60°C
Temperature range:
storage: -20°C to +70°C
Size(PCB): 190 x 63mm
Weight: 300gms