Microwave Switch/Attenuator Driver

7

Figure 7- 1 shows the components of the L4445A microwave switch/attenuator driver configuration. The L4445A driver is shown connected to a single 34945EXT remote module.

L4445A Instrument Driver

9-pin D-SUB cable

(power to master 34945EXT)

 

Y1150A-Y1155A Distribution Board

34945EXT Extender

User-supplied switch and cabling

Figure 7-1. L4445A Microwave Switch / Attenuator Driver Configuration.

Each 34945EXT module can have up to four distribution boards installed. You can have up to eight 34945EXT modules per L4445A.

The L4445A driver interface can supply 24 V power to the first (master) remote module only. The first remote module can also use an external power source..

Slave modules are connected in a daisy chain fashion using standard ethernet RJ- 45 connectors and Cat 5 cables.

All slave modules must obtain 24V power from an external power supply. Each module can be powered by a separate supply.

The Cat 5 Ethernet cable must be plugged- in to port 1 on the master remote module. Port 1 and Port 2 are interchangeable on all slaves.

All distribution boards on each remote module must use the same power supply voltage.

L4400 User’s Guide

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Agilent Technologies L4400 manual L4445A Microwave Switch / Attenuator Driver Configuration