Agilent Technologies 8753ET User Manual page 108

Network analyzers

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Table of Contents

Making Measurements

Using Test Sequencing

Electrical speciﬁcations for TTL high:

• volts(H) ≥ 2.7 volts (V)

• current = 20 microamps (µA)

Electrical speciﬁcations for TTL low:

• volts(L) ≤ 0.4 volts (V)

• current = 0.2 milliamps (mA)

Figure 1-67 Parallel Port Input and Output Bus Pin Locations in GPIO Mode

Test Set Interconnect Control

Figure 1-68 Test Set Interconnect Pin Designations

Control of the external switch (8762B Option T24) can be done through the test set

interface on the rear panel of the analyzer.