Keithley 2750 User Manual page 430

Model 2750 Multimeter/Switch System User's Manual
Figure G-1
IEEE-488 bus configuration
Device 1
able to talk,
listen, and
(computer)
Device 2
able to talk
and listen
Device 3
only able to
Device 4
only able to
To Other Devices
control
2750
listen
(printer)
talk
IEEE-488 Bus Overview
Data Bus
Data Byte
Transfer Control
General Interface
Management
DIO 1–8 Data
(8 Lines)
DAV
NRFD
Handshake
NDAC
IFC
ATN
Bus
SRQ
Management
REN
EOI
G-3