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4. Trunks and Lines
Section
Installation
1. Install the
or DID card in a trunk slot.
2.
Connect the power supply by cabling the positive side to the SG
connector on CN2 (Figure 4-4).
Note: Use cables that are 18 AWG or larger
to
connect the power supply
to
the DBS.
4-4.
wer
CN2
SG
GND C
8 M
Z2
RE2
Recommend:
3. Ground the positive side of the -48V power supply to the building
ground.
Note: Resistance to ground must be 10 Ohms or less, and the ground cable
must be 18 AWG or larger.
4. Install power-surge protectors between the wall outlet and the -48V
power supply.
5. Use a standard
cable to connect the trunks from the MDF to the
main trunk connector
6. Use a test set to verify the polarity of the trunk.
4-10
DBS Manual Issued
DBS-70-300
Summary of Contents for DBS 40
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