Chapter 3
Connector and Cabling
NI-FBUS Hardware and Software User Manual
3-4
ni.com
USB-8486
The USB-8486 hardware has a 9-pin male D-SUB (DB-9) connector for the
H1 port.
Figure 3-5 shows the male DB-9 connector pinout.
Figure 3-5.
Male DB-9 Connector Pinout for the USB-8486
The pinout of the USB-8486 uses pins 6 and 7 of the connector for the
Fieldbus signals as specified in the
Fieldbus Standard for Use in Industrial
Control Systems, Part 2, ISA-S50.02.1992
.
9-Pin D-SUB (DB-9) Cable Information
A 2-meter cable has been included in your kit which converts the 9-pin
D-SUB connector to three wire pigtails.
Figure 3-6.
DB-9 Cable for the USB-8486
1
2
3
45
6
7
8
9
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
No Connection
Data –
Data +