BL4S200 User’s Manual
10
1.4 RabbitNet Peripheral Cards
RabbitNet™ is an SPI serial protocol that uses a robust RS-422 differential signalling
interface (twisted-pair differential signaling) to run at a fast 1 Megabit per second serial
rate. BL4S200 single-board computers have two RabbitNet ports, each of which can sup-
port one peripheral card. Distances between a master processor unit and peripheral cards
can be up to 10 m or 33 ft.
The following low-cost peripheral cards are currently available.
•
Digital I/O
•
A/D converter
•
D/A converter
•
Relay card
•
Display/Keypad interface
Appendix E provides additional information on RabbitNet peripheral cards and the Rab-
bitNet protocol. Visit our
for up-to-date information about additional add-ons and
features as they become available.