Control Output Signals - Keysight E4980A User Manual

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Electrical Characteristics of the Input/Output Signals

Control Output Signals

The /INDEX and /EOM signals have optocoupled open collector outputs. The
combination of pull-up resistor and pull-up voltage must result in a current
through the optocoupler of less than 6 mA (Refer to
Figure F-8
Table F-10 Output signal electrical characteristics
Signal Name
/INDEX
/EOM
Figure F-8 Simplified diagram of the output circuits
Keysight E4980A/AL User's Guide
shows a schematic of the /INDEX and /EOM output circuits.
External Pull-up Vol tage
15 V max.
Table F-10).
Maximum Current
6 mA
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