Справочник Пользователя для National Instruments DAQ 6527

© National Instruments Corporation

TTL

transistor-transistor logic, or 5 V digital voltage levels originally used with 
transistor-transistor logic

typ

typical

V

volts

V

cc

supply voltage; for example, the voltage a computer supplies to its plug-in 
devices

VDC

volts direct current

VI

virtual instrument—a combination of hardware and/or software elements, 
typically used with a PC, that has the functionality of a classic standalone 
instrument

V

IH

volts, input high

V

IL

volts, input low

V

IN

input voltage

V

OH

volts, output high

V

OL

volts, output low

W

watts