User's Manual

HiperMAX Masthead Equipment Installation Guide
Page 39 Commercial in Confidence UGD-D00093 Rev A.1
8 Connect to Power System
Hazardous voltage! Before working, ensure that the power is removed from the
power connection cables. When the system is powered on, do not touch the
power terminals.
8.1 Power Output to SCRT
Each SCRT is provided with various lengths 48 volt power cable terminated with a male connector at
one end and a female connector at the other.
Warning: The male connector attaches to the SDR and the female connector
attaches to the SCRT. It is important that the power connector is attached at the
correct end (see illustration below) or damage to the connector/equipment will
result.
8.2 Run cables to SCRTs connectorised at both ends
Use this procedure to terminate the DC supply for the SCRT at the -48VDC source when using
connectorised DC cable parts.
 PWR-10-INST-1
 PWR-30-INST-1
 PWR-100-INST-1 (if using this cable the supply must be sufficient to ensure -40.5 volts are
available at the SCRT)
Some implementations of HiperMAX use connectorised 48V UL1015 DC cables. These same cables
are used for HiperMAX-micro where both the connectorised ends are used. When using these cables
for HiperMAX, however, the connectorised end at the 48VDC Source (labelled SDR) has to be
removed to allow for a wires only termination.
Conventional power wiring within the 48VDC Source uses blue for 48V negative and black for 48V
positive.
The SDR-micro uses black for 48V negative and white for return, and there is a
possibility that the wires could be incorrectly terminated when used on HiperMAX.
This can result in permanent damage to the SCRT.
The correct termination is cited below.
To run cables to SCRTs connectorised at both ends, perform the following steps: