The RS485 standard (TIA-485) specifies
differential data transmission over a terminated twisted pair.. The
standard specifies electrical characteristics of a driver and receiver,
and does not specify any data protocol or connectors. RS485 is popular
for inexpensive local networks, multidrop communication links and long
haul data transfer over distances of up to 4,000 feet. The use of a
balanced line means RS485 has excellent noise rejection and is ideal for
industrial and commercial applications. The RS422 standard is similar to
the RS485 standard but does not permit multiple drivers on a bus.
Similarly, the Profibus (Process Field Bus) protocol uses RS485ís
popular physical medium when deploying fieldbus solutions in factory and
process automation environments.
This FMC module provides 42 differential channels and is available
with two options:
Option "A": powered
by Linear Tech LTC2854
- 20Mbps RS485/RS422 Transceivers (x42)
- 3.3V Logic Supply Pin
- Recommended for use with Xilinx Kintex 7 FPGAs
Option "B": powered
by Linear Tech
- 20Mbps RS485/RS422 Transceivers (x42) - 1.65V to 5.5V Logic Supply Pin (VL)
for Flexible Digital Interface (+VADJ_FMC)
- Recommended for use with Xilinx Kintex UltraScale, Virtex
UltraScale, and Altera Arria10 FPGAs
the Nicomatic's mating connector:
- D222SP32B53 connector when using an EMI backshell.
DMM-S2-L-40-P-C EMI backshell used with this connector.
- D222SP32D53 connector when not using an EMI backshell.
►42 differential channels using Linear Tech 20Mb RS485/RS422
transceiver (LTC2854 or LTC2865) ►x1
Jtag Port ►TXCO
(direct interface to the FPGA)
HTG-FMC-RS485-A (supported by LTC2854) [Buy
HTG-FMC-RS485-B (supported by LTC2865) [Buy