Figure 4-4. -48Vpower Supply Installation - Panasonic CPC-EX Installation Manual

Chapter 4. Trunks and Lines
Installation
1. Install the G-TRK/8 or DID card in a trunk slot.
2. Connect the power supply by cabling the positive side to the SG

Figure 4-4. -48Vpower supply installation

C N 11
C N 1
3. Ground the positive side of the -48V power supply to the building
4. Install power-surge protectors between the wall outlet and the -48V
5. Use a standard 50-pin cable to connect the trunks from the MDF to the
6. Use a test set to verify the polarity of the trunk.
4-10
connector on CN2 (Figure 4-4).
Note: Use cables that are 18 AWG or larger to connect the power supply
to the DBS.
C N 5 C N 4 C N 2
C N 3
C N 12
C N 14 C N 15
C N 13
C N 1
R G
- 48V SG SYN R G +24V
ground.
Note: Resistance to ground must be 10 Ohms or less, and the ground
cable must be 18 AWG or larger.
power supply.
main trunk connector CN1.
DBS Manual - Revised April 2000
C N 2
G N D C B M Z0 Z1
- 48V Pow erSuppl y
R ecom m end:
Section 300-Installation
Z2 Z3 Z4 R E2 R E1
Tel l abs- 8001
Tel l abs- 8002
-
+
DBS-2.3/9.2-300