Chapter 7 Tutorial System Cabling And Connections - Agilent Technologies 34972A User Manual

System Cabling and Connections
This section describes methods to reduce measurement errors that can
be introduced by your system cabling. Many system cabling errors can be
reduced or eliminated by selecting the proper cable and grounding
scheme for your system.
Cable Specifications
A wide variety of general-purpose and custom cables are available. The
following factors influence the type of cable that you choose.
• Signal Requirements – such as voltage, frequency, accuracy, and
• Interconnection Requirements – such as wire sizes, cable lengths, and
• Maintenance Requirements – such as intermediate connectors, cable
Cables are specified in a variety of ways. Be sure to check the following
specifications for the cable type you intend to use (continued on the
following page).
• Nominal Impedance (insulation resistance) – Varies with the
• Dielectric Withstand Voltage – Must be high enough for your
To prevent electrical shock or equipment damage, insulate all channels to
WARNING
the highest potential in the system. It is recommended that you use wire
with 600 V rated insulation.
measurement speed.
cable routing.
terminations, strain relief, cable lengths, and cable routing.
frequency of the input signal. Check for HI-to-LO, channel-
to-channel, and HI- or LO-to-shield. High frequency RF applications
have exact requirements for cable impedance.
application.
Chapter 7 Tutorial
System Cabling and Connections
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