Panasonic CPC-EX manual 48Vpower supply installation

Chapter 4. Trunks and Lines Section 300-Installation

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 connector on CN2 (Figure 4-4).

Note: Use cables that are 18 AWG or larger to connect the power supply to the DBS.

Figure 4-4. -48Vpower supply installation

C N11

C N 5 C N 4

C N 2

C N 12 C N 3

C N 13

C N14 C N 15

CN 1

C N1

C N2

RG

-48V

SG

SYN

R G

+24V G N D

C

B

M

Z0

Z1

Z2

Z3

Z4

R E2 RE1

-48V Pow erSupply

R ecom m end:

Tellabs-8001

Tellabs-8002

-

+

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 50-pin cable to connect the trunks from the MDF to the main trunk connector CN1.

6.Use a test set to verify the polarity of the trunk.

4-10 DBS Manual - Revised April 2000 DBS-2.3/9.2-300