User's Manual Part 2

Test Equipment Setup

08/01/2001

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1X SCt4812ET Lite BTS Optimization/ATP

PRELIMINARY

Connecting Test Equipment to

the BTS

All test equipment is controlled by the LMF through an IEEE–488/GPIB

bus. The LMF requires each piece of test equipment to have a factory set

GPIB address. If there is a communications problem between the LMF

and any piece of test equipment, verify that the GPIB addresses have

been set correctly as follows:

S Power meter address should be 13

S Communications test set should be 18

The following test equipment is required to perform optimization,

calibration and ATP tests:

S CDMA LMF

S Communications test set model supported by the CDMA LMF

S Power meter model supported by the CDMA LMF (required when

using the HP 8921A/600 and Advantest R3465 test sets)

S Non–radiating transmit line termination load

S Directional coupler and in–line attenuator

S RF cables and adapters

Refer to Table 3-22 for an overview of connections for test equipment

currently supported by the CDMA LMF. In addition, see the following

figures:

S Figure 3-15 and Figure 3-16 show the test set connections for TX

calibration

S Figure 3-17 and Figure 3-18 show the test set connections for

optimization/ATP tests

Supported Test Equipment

Optimization and ATP testing may be performed using the following test

equipment:

S CyberTest

S Advantest R3465 and HP–437B or Gigatronics Power Meter

S Hewlett–Packard HP 8935

S Hewlett–Packard HP 8921 (W/CDMA and PCS Interface (1.9 GHz))

and HP–437B or Gigatronics Power Meter

S Spectrum Analyzer (HP8594E) – optional

S Rubidium Standard Timebase – optional

To prevent damage to the test equipment, all transmit (TX)

test connections must be through a 30 dB directional

coupler plus a 20 dB in-line attenuator for both the 800

MHz and 1.9 GHz BTSs.

CAUTION