IRD-2900 Series Professional Integrated Receiver ... - TBC Integration

IRD-2900 Series
Professional Integrated Receiver Decoders
2.5.1.2. DC Power Supply
DC power supply is an optional feature of the IRD-2900. If the unit is fitted with
a -48V CD power supply, connect the external 48V DC source by performing the
following (refer to Figure 2-11):
1. Connect a (+) 48V DC source wire to the (+) contact on the power terminal
board.
2. Connect a (-) 48V DC source wire to the (-) contact on the power terminal
board.
3. Connect Grounding point wire to the (GND) contact on the power terminal
board.
When the IRD is rack-mounted, the jackscrew (see Figure 2-11) must be
connected to the rack housing, which in turn should be properly grounded.
Grounding
Jackscrew
Figure 2-11: DC Power Supply and Rack-Mount Grounding Jackscrew
GND Contact
+ Contact
- Contact
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