DL manuals National Instruments Extender GPIB-140A User Manual National Instruments GPIB-140A User Manual - page 47 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 Page of 47 Go Download Print this page Bookmark us Glossary G-4 | ni.com T TTL transistor-transistor logic U UL Underwriter’s Laboratories V V volts VAC volts alternating current « ‹ Prev41424344454647