Technical Specifications:
Board Type: Serial Gateway Module
System: Foxboro I/A Series DCS
Serial Ports: 2 independent RS-232/RS-485 serial ports
Baud Rates: 300 to 115200 baud (configurable per port)
Protocols: Modbus RTU (Master/Slave), DF1, Foxboro FIM, and custom protocols
Data Bits: 7 or 8 (configurable)
Parity: None, Even, Odd (configurable)
Stop Bits: 1 or 2 (configurable)
Buffer Size: 4KB per port for data buffering
Isolation: 500V RMS opto-isolated per port
Communication: I/A Series UIM/LIM backplane
Power: 5V DC from backplane
Form Factor: Eurocard (3U height)
Operating Temperature: 0 to 60 degrees Celsius
Functional Features:
Protocol Translation: Translates between I/A Series internal data format and external serial protocols (Modbus, DF1, etc.) in real time.
Dual Independent Ports: Two serial ports can communicate with different devices simultaneously using different protocols.
Buffered Communication: 4KB buffers per port prevent data loss during high-traffic periods or backplane bus contention.
Master/Slave Support: Each port can operate as either Modbus master or slave, providing maximum flexibility.
Isolated Ports: Each serial port is galvanically isolated, protecting the DCS from ground loops and voltage spikes.
Configurable Timing: All serial parameters (baud, parity, data bits) are configurable from the I/A Series engineering station.
Diagnostic LEDs: Per-port LEDs show transmit, receive, and error status at a glance.











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