User Manual

AS4000 Central Terminal Installation and

Commissioning

DLP 015

605-0000-432

Issue 1.3a Date 18th October 1999

Page 1 of 8 Copyright Airspan Communications Corporation 1999

CT TX AND RX POWER SET-UP (2.0-2.3GHZ BAND) USING

TEST CRU

Note: This method of setting up the CT should be used if a Level Control Unit is not

available.

1. Tools and equipment needed.

Item Description Recommended Model Quantity

1 Digital Multimeter Fluke 77 1

2 Test CRU ACC(“Battleship CRU”)

Part No.: 503-0300-001

3 30dB Attenuators; 1W Suhner 6830-19-A 4

6 11dB Variable Attenuator HP8499B 1

7 2 Way Power Divider Narda 4313-2 3

8 50 ohm Termination 1W Suhner 65 SMA-50-0-1 1

9 50 ohm Termination 15W Suhner 6515.17.A 1

10 Adaptor; N-SMA Suhner 33N-SMA-50-1 2

11 Adaptor; N-SMA Suhner 31N-SMA-50-1 1

12 Adaptor; Female-Female Suhner 32 SMA-50-0-1 1

13 Co-ax Cables Suhner Sucoflex 104; 0.5m 5

Suhner Sucoflex 104; 4.0m 2

14 RF Power Meter Marconi 6970 1

15 Power Sensor Marconi 6932 1

STEP PROCEDURE

Observe full ESD precautions.

2. Note:

The system may be commissioned using either a Voice or a Data CRU as a test CRU. IF

using a Data CRU, it should be programmed using STMON (see 605-0000-436 for details)

and not a test telephone in step 6(e). If a Data CRU is being used for commissioning then

steps 6(f) and 6(h) are not necessary.

3. Preparation

a) System Soak The system must be switched on for at least 2 hours to ensure that it

is fully warmed up before proceeding any further. To minimise the down time the

test equipment can be prepared during this time ready for testing.