User's Manual Part 2

Test Equipment Setup

MAY 2004 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU 6-51

PRELIMINARY

Connecting Test Equipment to

the BTS

The following types of test equipment are required to perform calibration

and ATP tests:

S WinLMF

S Communications system analyzer model supported by the WinLMF

S Power meter model supported by the WinLMF (required when using

the HP 8921A/600 and Advantest R3465 analyzers)

S Non–radiating transmit line termination load

S Directional coupler and in–line attenuator

S RF cables and adapters

Refer to Table 6-21 for an overview of connections for test equipment

currently supported by the WinLMF. In addition, see the following

figures:

S Figure 6-14, Figure 6-15, and Figure 6-16 show the test set

connections for TX calibration

S Figure 6-17 through Figure 6-20 show the test set connections for

optimization/ATP tests

Test Equipment GPIB Address

Settings

All test equipment is controlled by the WinLMF through an

IEEE–488/GPIB bus. To communicate on the bus, each piece of test

equipment must have a GPIB address set which the WinLMF will

recognize. The standard address settings used by the WinLMF for the

various types of test equipment items are as follows:

S Signal generator address: 1

S Power meter address: 13

S Communications system analyzer: 18

Using the procedures included in the Verifying and Setting GPIB

Addresses section of Appendix B, verify and, if necessary, change the

GPIB address of each piece of employed test equipment to match the

applicable addresses above

Supported Test Equipment

CAUTION

To prevent damage to the test equipment in high power

configurations, all transmit (TX) test connections must be

through a 30 dB directional coupler plus a 20 dB in-line

attenuator for the 800 MHz BTSs.

Attenuators are not required for low power configurations.

IS–95A/B Operation

Optimization and ATP testing for IS–95A/B sites or carriers may be

performed using the following test equipment: