Installation Manual

PX/QX with Coupler Installation Manual Version *61

Wiring between PABs

When multiple antenna aisles are installed, it may require installing sync wire and network

munication cable between the aisles. For PX/QX with Coupler installation, all sync cables and

network communication cables are connected to the TR4026 electronic boards in the primary

antennas (PABs).

Sync Cable

The sync cable (RF Sync) needs to be installed between PABs if the distance between aisles is

under 40 feet. If two aisles are more than 40 feet apart, no sync cable is needed. Use 22 AWG

4-conductor (STP) (5594) cable for sync cable. Follow the Sync Cable Wiring Table below to

wire it to appropriate terminals. Sync cables are wired in daisy chain style. There are two sync

cables in a PAB antenna, the input cable and the output cable The first PAB only uses Sync

Output cable, the last PAB has the Input sync cable. The Output cable connects from terminal (J10)

to next PAB’s Sync Input terminal (J9). Figure 8 Wiring Sync Cable illustrates the wiring method.

Please refer the table below for Sync wire terminal connector pin assignment.

J10

First PAB

Second PAB

To Third PAB

Figur

e 8 Wiring Sync Cable

Figu

re 9 Sync cable with ferrite core

Note: A ferrite core with three (3) turns is attached at each end.