Figure E-1. Gpib Connector And The Signal Assignment - National Instruments Corporation GPIB-1014P User Manual

Multiline Interface Messages
The GPIB uses negative logic with standard TTL logic level. When DAV is true, for example, it is a
TTL low level ( ≤ 0.8V), and when DAV is false, it is a TTL high level ( ≥ 2.0V).

Figure E-1. GPIB Connector and the Signal Assignment

GPIB-1014P User Manual
DIO1 1 13
DIO2 2 14
DIO3 3 15
DIO4 4 16
EOI 5 17
DAV 6 18
NRFD 7 19
NDAC 8 20
IFC 9 21
SRQ 10 22
ATN 11 23
SHIELD
12 24
E-4
DIO5
DIO6
DIO7
DIO8
REN
GND (TW PAIR W/DAV)
GND (TW PAIR W/NRFD)
GND (TW PAIR W/NDAC)
GND (TW PAIR W/IFC)
GND (TW PAIR W/SRQ)
GND (TW PAIR W/ATN)
SIGNAL GROUND
© National Instruments Corporation
Appendix E