Specifications

User Manual 301/302

USING The INSTRUMENT.

Overview

This chapter contains information about how to operate the Model

301/302. The Model 301/302 must be programmed to turn on

functions, change parameters and configure various operating

modes. The Model 301/302 is supplied with WaveWiz, a PC based

software package with a graphical user interface to allow users to

program all of the functions directly. LabView drivers and a set of

SCPI commands are available for more experienced programmers.

SCPI (standard commands for programmable instruments)

commands for the Model 301/302 are listed in Table 4-1. This manual

provides information on low-level programming using SCPI

commands and using WaveWiz to control the same functions.

The following paragraphs describe the various modes of operation

and give examples of how to program the Model 301/302. The

manual is organized by instrument function and instructions are given

in each paragraph on how to use the function from both SCPI and

WaveWiz.

Inter-Channel

Dependency

The Model 302 has two output channels. Although this is a two-

channel instrument, most of the commands that set parameters and

functions are common for both channels. For example, sample clock

and trigger modes can not be set separately for each channel. On the

other hand, you may program each channel to have different function

shape, amplitude and offset. Table 3-1 lists the function and

parameters and their related Inter-channel dependency.

Output

Termination

During use, output connectors must be properly terminated to

minimize signal reflection or power loss due to impedance mismatch.

Proper termination is also required for an accurate amplitude level at

the main output connector. Use 50Ω cables and terminate the main

and SYNC cables with terminating resistors. Always place the 50Ω

termination at the far end of the cables.

Input / Output

Protection

The Model 301/302 provides protection for internal circuitry connected

to input and output connectors. Refer to the specifications in Appendix

A to determine the level of protection associated with each input or

output connector.

Configuring the Instrument