User Manual

AS4000 Central Terminal

Installation and Commissioning

DLP 010

605-0000-452

Issue 1.3dr Date 7/02/00

Page 1 of 6 © Copyright Airspan Communications Corporation 2000

SETTING THE RECEIVE SENSITIVITY USING DA

COMMISSIONING UNIT (DACU)

2.0-2.3MHZ BAND ONLY

1. Setting Up The DACU

1. Ensure that Sitespan has been set up as in DLP-009.

2. The DA Commissioning Unit (DACU) is used during system commissioning and

routine maintenance. The Commissioning Unit acquires a full low rate RF downlink /

uplink through RF cabling coupled into the CT transmit / receive antenna ports. The RF

receive level is adjusted as required using Sitespan. For details on the operation of the

unit see 605-0000-455 DA Central Terminal Commissioning Unit Operators Manual

3. The Commissioning Unit is set up as in Figure 32

CT Rack Expansion Rack

Modem

Shelf 1

Combiner

Shelf

Modem

Shelf2

Modem

Shelf 3

Modem

Shelf 4

Commissioning

Unit

TX/RX Shelves 1&2 TX/RX Shelves 3&4

PC with Sitespan

and LAT terminal

software

Power Meter

Supply

Figure 32 DACU Connections to AS4000 DA CT Rack