Service Manual

GSM-204-323

SURF harness

31st Oct 01

Tech. 2–4

Technical Description: Horizon

macro

outdoor

CONTROLLED INTRODUCTION

68P02902W02-A

SURF harness

detail

The SURF harness is fitted on the back wall of the cabinet. The chassis of the

harness supports the SURF module.

The SURF harness provides:

 Three connectors to the SURF, for RF and power.

 One RF connector to each CTU, consisting of three inputs, one each for

RxA, RxB and RF loopback test, as shown in Figure 2-4. The RF

connectors are free floating to ensure fitting of CTU modules.

 One connector to the backplane, for power from the PSMs.

Cabinet view

with installed

SURF harness

Figure 2-3 shows the SURF harness installed in an empty cabinet. The SURF

harness cables have been omitted for clarity.

SURF HARNESS

(see Figure 2-4 for a

detailed view)

Figure 2-3 Location of the SURF harness in the cabinet