DIN IEC 60625-1/A2:1989-11

An interface system for programmable measuring instruments (byte serial, bit parallel); functional specifications, electrical specifications, mechanical specifictions, system applications and requirements for designer and user; amendment no 2; identical with IEC 65C(Central Office)27

An interface system for programmable measuring instruments (byte serial, bit parallel); part 1: functional specifications, electrical specifications, mechanical specifications, system applications and requirements for designer and user; amendment No. 1; identical with IEC 65C(Central Office)12, 13, 14, 15 and 16

An interface system for programmable measuring instruments (byte serial, bit parallel); part 1: functional specifications, electrical specifications, mechanical specifications, system applications and requirements for designer and user