User's Manual Part 1

Table Of Contents
3EM21522AAAA OPERATION
Issue 1, March 2008 DTR-0200-SA-SIRIUS
5-45
5.8.3
Power Distribution Unit (PDU) Front Panel Controls
The PDU front panel houses seven circuit breakers for controlling repeater electrical
power. There is also an auxiliary power receptacle for future use. See Figure 5 - 49.
Figure 5 - 49 Power Distribution Unit Front Panel
CONTROL COMMENTS
MAIN POWER Removes all power from the entire repeater cabinet.
FANS Removes power from the four axial fans; two on the top of
the HPA and two on the back door of the cabinet.
HPA Removes input power from the HPA drawer.
SPU Removes input power from the SPU drawer.
AUX POWER Removes power from the AUX receptacle.
EXTERNAL HEATER This is an optional connection for use by the customer as
desired.
INTERNAL HEATER Removes power from the SPU area heater. The heater is
not part of the SPU.
AUX OUTLET Controlled by AUX POWER CB. Supplies 120v, 5A.