©
National Instruments Corporation
C-1
80188EB-Based Fieldbus Round Card User Manual
Appendix
C
Specifications
This appendix describes the characteristics of the Fieldbus Round Card.
Table C-1.
Fieldbus Round Card Specifications
Characteristic
Specification
Dimensions
6.2
×
1.52 cm (2.44
×
0.6 in.)
Processor
Intel 80188EB, 8 MHz system clock
Fieldbus Interface
Fuji Electric Frontier-1, bus-powered,
31.25 kb/s
Fieldbus Power Supply
14–32 V at 20 mA at 8 MHz,
50
Ω
terminated
Power Supply to External
Electronics
3.9 V at 8 mA
Table C-2.
Fieldbus Round Card Components
Component
Location on Round Card
Fieldbus Connection
2-position terminal block JI
3 V Output
2-position terminal block J2
Reset Switch
Switch S1
Program Mode Jumper
Jumper B on W1
