Agilent-technologies Wireless Network Optimization Platform E6474A Manual do Utilizador descarregar pdf (Página 32)

32 Agilent E6474A User’s Guide

3 Set Up Your System

Power Distribution Module (PDM) for the W1314A Receivers

The PDM provides power from the vehicle's battery to a

single or multiple receivers. Alternatively, you can power

receivers from the IEC power outlets (cigarette lighter). On

the rear of the PDM is the power cable that attaches to the

battery and connections for up to four receivers. On the

front of the PDM (see Figure 13 on page 32) you'll find the

following:

• On/off switch

• The ignition sense switch, if enabled will sound a warning

when the ignition switch is turned off. The sound warning

will repeat every minute and, after approximately 20

minutes, the power will be stopped to the attached

receivers. This gives you time to close the drive- test

software and power off equipment. If ignition sense is in

the off position, the PDM will operate independently of

the vehicle ignition.

• One fuse per receiver to protect receiver power output.

These can be replaced using an automotive blade- type

5amp fuse.

Figure 13 The rear view of the PDM plate

CAUTION

If the PDM is on and the vehicle ignition is off, the battery will drain in

as little as one hour.

5 amp fuses

PDM on/off

switch

Ignition

sense switch

On LED

Low Voltage

LED

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Agilent-technologies Wireless Network Optimization Platform E6474A Manual do Utilizador Página 32