Agilent Technologies 34970A, Service Manual, Page: 10 / 273

34907A Multifunction Module
•
Two 8-bit Digital Input/Output ports, 400 mA sink, 42 V open collector
• 100 kHz Totalize input with 28 bits of resolution
•
Two 16-bit,
±
12 V Calibrated Analog Outputs
Use this module to sense status and control external devices such as
solenoids, power relays, and microwave switches. For greater flexibility,
you can read digital inputs and the count on the totalizer during a scan.
34908A 40-Channel Single-Ended Multiplexer
• 40 channels of 300 V single-ended (common LO ) switching
• Built-in thermocouple isothermal reference junction
•
Switching speed of up to 60 channels per second
• Connects to the internal multimeter
Use this module for high-density switching applications which require
single-wire inputs with a common
LO
. All relays are break-before-make
to ensure that only one relay is connected at any time.
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