CompactPCI serial quad isolated RS-485 interface

September 13, 2018 // By Julien Happich
Proven and reliable, RS-485 (EIA/TIA-485) stays a popular fieldbus communication interface, due to simple installation via low cost twisted pair copper cables, up to 1200m in length. EKF's SU1-TWIST is a peripheral slot card for CompactPCI Serial systems, equipped with four isolated front panel RS-485 ports.

For optimum noise and EMC immunity, the board features high speed RS-485 balanced line transceivers with 5kV internal isolation barrier. The SU1-TWIST is equipped with an octal PCI Express to UART bridge. The 950-style UARTs are compatible with many asynchronous serial applications and protocols. Four isolated EIA/TIA-485 transceivers are wired to Micro-D front panel connectors, individually configurable for full or half-duplex operation, either point-to-point or multipoint (PartyLine) applications. Another four UART channels are available via the CompactPCI Serial backplane connector P4 for versatile rear I/O usage.

EKF Elektronik - www.ekf.com


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