Specifications

Appendix C - Glossary of Terms RS-422 And RS-485 Applications Ebook
Page 129 of 137 Manual Documentation Number: <DocNumber>
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V
Vcm
Common mode voltage. Voltage (with respect to ground) that is common to
both inputs of a balanced device input. If Vcm is greater than the device's
specified maximum value, the device could be damaged.
VDC
Volts DC. Steady state voltage.
Voltage Spikes
A transient, very short term high voltage on a signal or power line.