Table 1. Signal Descriptions
Signal |
Terminal |
Description |
DIO1 |
1 |
Data Input/Output Bit. |
DIO2 |
2 |
Data Input/Output Bit. |
DIO3 |
3 |
Data Input/Output Bit. |
DIO4 |
4 |
Data Input/Output Bit. |
EOI |
5 |
End-Or-Identify. |
DAV |
6 |
Data Valid. |
NRFD |
7 |
Not Ready For Data. |
NDAC |
8 |
Not Data Accepted. |
IFC |
9 |
Interface Clear. |
SRQ |
10 |
Service Request. |
ATN |
11 |
Attention. |
SHIELD |
12 |
Shield. |
DIO5 |
13 |
Data Input/Output Bit. |
DIO6 |
14 |
Data Input/Output Bit. |
DIO7 |
15 |
Data Input/Output Bit. |
DIO8 |
16 |
Data Input/Output Bit. |
REN |
17 |
Remote Enable. |
GND |
18 |
Ground—Wire twisted with DAV. |
GND |
19 |
Ground—Wire twisted with NRFD. |
GND |
20 |
Ground—Wire twisted with NDAC. |
GND |
21 |
Ground—Wire twisted with IFC. |
GND |
22 |
Ground—Wire twisted with SRQ. |
GND |
23 |
Ground—Wire twisted with ATN. |
SIGNAL GROUND |
24 |
Logic Ground. |
Table 2. LED State/Device Status
LED |
LED Color |
Device Status |
READY |
Green |
The GPIB device is plugged into a USB full-speed (USB 1.1) port. |
Amber |
The GPIB device is plugged into a USB Hi-Speed (USB 2.0) port. |
ACTIVE |
Amber |
There is activity on the GPIB bus. |