User's Manual

Installing 24 Volt or 48 Volt DC Power Supply Unit
You can replace the 220V AC PSU with a 24 Volt or 48 Volt DC PSU as
follows:
1. Switch the repeater off and remove the mains plug from the PSU
(’1’ in Figure 3-9).
2. Disconnect the two connectors (2) on the PSU.
3. Loosen the three fixing screws (3) using a 5mm Allen key.
4. Remove the PSU from the repeater.
5. Mount the 24/48 Volt DC PSU with the three fixing screws (3).
6. Connect the PSU to the DIA board (2).
7. Connect the DC power cable. The supplied cable should have a
radiation limiter. The cable shall be connected as follows:
The + pole shall be connected to one of the left terminals in the PSU
connector with the BROWN part of the DC cable.
The – pole shall be connected to one of the right terminals in the
PSU connector with the BLUE part of the DC cable.
8. Switch the repeater on.
9. The yellow LED on the PSU shall now be lit.
The DC Power Supply Unit must be galvanically separated from the mains
supply with an equipment fulfilling the IEC65 safety requirements.
MS
DPX
ANT
TEST
DC
-30 dB
-20 dB
MS
DPX
ANT
TEST
DC
-30 dB
-20 dB
Figure 3-9. Replacing the PSU
BROWN BLUE
ALLGON System AB AR Repeaters & OMT32 Hardware – Installation
User’s Manual VD202 90/EN Rev. 1A 1999-07 3 - 15