Keysight 34959A, Руководство пользователя

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Keysight 34959A User’s Guide 9
34959A Breadboard Module Description
The 34959A Breadboard Module provides a 137mm x 190mm x 23mm (5.4” x 7.5” x
0.9”) space inside the 34980A Multifunction Switch/Measure Unit, for you to
install custom circuitry to support applications not available on the standard
plug-in modules.
This module minimizes the need for customer-supplied circuitry by pro5V
and +12V power supplies for logic and relay drive use, 16 general purpose digital
I/O bit lines with control lines, and 32 relay drive lines. Your custom circuitry can
access the 34980A mainframe’s internal DMM and four Analog Buses. Desired
measurement and I/O functions can be programmed using standard read/write
commands.
Internally, most of the customer-provided circuitry connects to the module
through two ribbon cables; the Analog Bus connections are made by
hard-soldering to a grid of holes provided on the Keysight-supplied PC board. Two
external ports are provided for Dsub connectors (DB50 or DB78) between the
module and your field wiring.
The sheet metal base of the module provides fifteen countersunk holes for flexible
mounting of circuit boards, terminal blocks or other components. As with all other
plug-in modules for the 34980A, cooling is provided within the mainframe chassis.