User Manual

AS4000 Release3 and Release 4 Central

Terminal Installation and Commissioning

DLP-009

605-0000-432

Issue 1.3a Date 18th October 1999

Page 6 of 8

DIP/LNA 1

Antenna Feed

30 dB Coupler

50 ohm Termination

N type connector

Figure 29. Coupler Connection

4.2. Installation of card sets when providing Modem Shelf 3

When installing cards into an existing installation the power is already connected and

the cards should be inserted in the order listed below.

A) For a installation of modem shelf 3 install the following

• RF Power Amplifiers Modules (2 PA’s per module) in the right hand

position in the combiner shelf

• TX Filter (Terminate output with 50ohm termination.)

• x PSU’s

B) Install the RF and Modem Shelf card set

Insert the following cards into the Combining Shelf:-

• 1 x RF Card (RF) (Third Slot)

Insert the following cards into the Modem Shelf:-

• 1 x Shelf Controller Card (SC)

• 1 x Analogue Card (AU)

• 1 x Tributary Card (TU) The Tributary unit DIL Switches should be set as

in Figure 28.

Note: Test Modem

A ‘test modem’ is also required. Any modem card supplied with the equipment will

suffice for this purpose. 3.4-3.6GHz Band installations will require two modem cards.