Field Logo

+44 (0) 1403 713772

Control & Instrumentation Expertise Since 1982

Home » Products » Field Electronics 990 Series

Field Electronics 990 Series

Simple, compact, versatile, DIN rail mount serial communication converter or line driver.

  • RS232, RS422, RS485
  • Half or full duplex operation
  • Baud rates from 1k2, through to 78k2
  •  Isolated serial communications circuits with the benefit of a microprocessor controlled timing circuit. >1000vdc/μs CMR / Isolation between serial circuits.




Power Requirements

1 Watt, 24V dc ±10%


Comms A to Comms B: 1000V dc/ us, Power to Logic 1000 V dc /us


RS232, RS422, RS485

Baud Rates

1k2, 2k4, 4k8, 9k6, 14k4, 19k2, 38k4, 57k6, 78k8