MERLIN LEGEND Communications System Release 6.1
Maintenance and Troubleshooting
555-661-140
Issue 1
August 1998
Page 4-9
Power Supply Problems
Figure 4-3. Replacing an Auxiliary Power Supply
!
CAUTION:
Do not plug the power supply or the auxiliary power unit into the
AC outlet until you are ready to turn on the system, as described in
“Powering Up the System” in Chapter 2 of
Installation.
Do not attach the power cord(s) to any building surfaces.
AC
Outlet
-48 VDC
Auxiliary
Power
Input
AC
Input
Auxiliary
Power
Unit
AUX
POWER
AC
INPUT
-48 VDC
Power Cord
Control Unit
AC Power Cord
Ground
Wire
Ferrite
Cores
UX Power Unit
C Power Cord
Process