User Manual

AS4000 Subscriber Terminal

Installation and Commissioning DLP 010

605-0000-436

Issue 1.5 Date: 18th October 1999

Page 1 of 8 1988 Airspan Communications Corporation

CABLE TERMINATION FOR ST-D128 WHEN USING

TYPE 1 & TYPE 4A PSU.

STEP PROCEDURE

Drop Cable Termination at CRU.

Important Notice: Care should be taken when plugging the drop cable into the

connector on the rear plate of the CRU. The cable approaches the socket from above.

The cable socket has a polarisation key and the plug has a polarisation slot to ensure

that the connectors mate correctly. Support the cable so that the plug does not connect

to the socket at an angle. The plug must be eased into the socket ensuring the

polarisation key locates. Damage to the pins may result if the pins are not inserted

straight into the sockets or the polarisation key is not located correctly. Ensure that the

pins are fully mated before attempting to tighten the locking ring. Tighten the locking

ring using the fingers. Do not use a wrench as over-tightening will strip the thread on

the locking ring.

1. Table 11 below, details the 12 way CRU connector block showing pin number,

function, limits, description and colour drop cable conductors.

1 Logic 0 volts

2 AGC Mon

3 PC Mon

4 + DC supply

5 0V - DC supply

6 Downlink Comms

7 Uplink Comms

8 2Mbit/s TX

9 2Mbit/s TX

10 2Mbit/s RX

11 2Mbit/s RX

12 0V Drain/Screen

Polarisation Key

Figure 25. CRU Drop cable connector