IEC/IEEE bus interface
DESCRIPTION
The V is an implementation of the IEC-bus as described in IEC report 66 CO 22 interface system for programmable measuring apparatus as well as in IEEE standard 488-1975 standard digital interface for programmable instrumentation.
Together with bus-drivers, level converters and multiplexers it is suitable for connecting electronic programmable and non-programmable equipment to an IEC/IEEE interface bus.
All inputs have standard HE4000B family levels. In the circuit the following standard interface functions are incorporated:
• Complete source handshake subset SH1
• Complete acceptor handshake subset AH1
• Basic talker with serial poll and talk-only mode when It = LOW, subset T1; It = HIGH, subset T5
• Basic listener with listen-only mode when It = LOW, subset L1; It = HIGH, subset L3
• Complete service request subset SR1
• Complete remote local subset RL1
• Remote parallel poll configuration subset PP1
• Complete device clear subset DC1
• Complete device trigger subset DT1
• Some controller facilities