American Magnetics 187 Self-Compensating Liquid Level Controller - Manual (Page 70)

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Appendix
IEEE-488 Connector
A.3 IEEE-488 Connector
Table A-1. IEEE-488 female connector J7 description.
Pin Mnemonic Description
1 DIO1 Data In/Out Bit 1
2 DIO2 Data In/Out Bit 2
3 DIO3 Data In/Out Bit 3
4 DIO4 Data In/Out Bit 4
5 EOI End or Identify
6 DAV Data Valid
7 NRFD Not Ready for Data
8 NDAC Not Data Accepted
9 IFC Interface Clear
10 SRQ Service Request
11 ATN Attention
12 SHIELD Cable Shield (connected to 187 chassis gnd)
13 DIO5 Data In/Out Bit 5
14 DIO6 Data In/Out Bit 6
15 DIO7 Data In/Out Bit 7
16 DIO8 Data In/Out Bit 8
17 REN Remote Enable
18 GND Ground, Twisted pair with DAV
19 GND Ground, Twisted Pair with NRFD
20 GND Ground, Twisted Pair with NDAC
21 GND Ground, Twisted Pair with IFC
22 GND Ground, Twisted Pair with SRQ
23 GND Ground, Twisted Pair with ATN
24 SGND Signal Ground
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