Agilent Technologies 6634A Manual do Utilizador descarregar pdf (Página 5)

Introduction

Introduction This section contains:

■ Introduction, 2

■ Tools Needed, 3

■ Preparation, 3

Introduction

This document describes how to install DUT (device

under test) power supplies in the Agilent 3070 and

Agilent 79000 family systems. A DUT power supply

can be either a physical supply or a logical supply. A

physical supply is a box that might have one or more

logical supplies in it. For example, the 6624A has four

independent outputs, or four logical supplies. Logical

supplies can be split between two modules. Each logical

supply is assigned a unique number in the system and

board config files.

The Agilent 3070 / 79000-supported DUT power

supplies are listed below (product no. (model no.)):

■ 44940A (6624A) 4-Output DUT Power Supply

■ 44941A (6621A) 2-Output High-Current DUT

Power Supply

■ E4034A (6634A/B) 1-Output High-Voltage DUT

Power Supply

■ E3784A (6642A) 1-Output High-Current DUT

Power Supply

■ E3785A (faceless 6624A) 4-Output DUT Power

Supply

For ease of recognition, the supplies will be referred to

by their model numbers, as the 6624A, 6621A, 6634A,

6634B, 6642A, and faceless 6624A. Each kit includes

the power supply, a rack mount kit, overvoltage

protection cables, and in some cases, radiation shields.

The cables to connect the power supply to the ASRU

(Analog Stimulus and Response Unit) Card are included

with the testhead module. The ASRU and ASRU-B

cards used in most Series I testheads have only four

DUT power supply channels; the ASRU-C card in most

Series II testheads systems has six channels.

There are four basic steps to follow when installing one

or more DUT power supplies:

1 Determine the ac supply line voltage for the DUT

power supply and set up the DUT power supply line

input for this voltage.

2 Install the DUT power supply into the 3070 / 79000

testhead or support bay.

3 Connect the DUT power supply cables to the ASRU

Cards and DUT power supplies.

1 You set a logical supply’s value using the sps statement. See the Agilent 3070 Syntax Reference Manual for more information on using

the sps statement.

2 This changed in June 1999. See Setting the DUT Power Supply Line Voltage on page 8.

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