The Agilent 34902A module for the 34970A Data Acquisition/Switch Unit employs reed relays to achieve scan rates up to 250 channels-per-second. Use this module for high-throughput automated test applications as well as high-speed data logging and monitoring tasks.

Sixteen two-wire inputs switch up to 300 V. Two-and four-wire channels may be mixed on the same module. User provided shunt resistors are required for current measurements.

Modules specifications
The Agilent 34970A accuracy specifications already include the switching offset and reference junction errors shown in the chart. These errors are listed separately for determining system error with external measurement devices. These errors are listed separately for determining system error with external measurement devices.

Up to three modules, in any combination, can be inserted into a single mainframe. The 34970A’s internal DMM connections are accessible only through the 34901A, 34902A, and 34908A low frequency multiplexers.

On-module screw terminals accept wire sizes from 16 gage to 22 gage. Twenty-gage wire is recommended for high channel count applications. The 34905A and 34906A RF Multiplexers use SMB connectors. A standard set of (10) BNC-to-SMB adapter cables is provided with each RF module for convenient BNC connections.