NA 031

DIN Standards Committee Firefighting and Fire Protection

Technical rule [CURRENT]

ITU-T V.31bis
Electrical characteristics for single-current interchange circuits using optocouplers

Title (German)

Elektrische Eigenschaften von Einfachstrom-Schnittstellenstromkreisen mit Optokopplern

Edition 1988-11
Original language English
Price On Request
Table of contents