RS-232

• One RS-232 serial port, 921.6K baud maximum speed
• The RS232 interface on the industrial serial card is identical to the one on the basic serial card.

RS-485

• One 22 KV isolated RS-485 serial port, 921.6 Kbaud maximum speed
• Connector: Examples of the connector you should use are:
  • Phoenix (MC 1,5/5ST-3,81)
  • Würth (691361300005)
• Termination switch: With this switch you can choose to terminate the RS485 network with a 120 Ohm resistor
• Wire selection: This switch allows you to use a 4 wire network or a 2 wire network

In a 2 wire network:

In a 4 wire network:

Note: By default the TX and RX of the RS485 connection are disabled. Enable them before using the RS485 port. (You can enable this by using the DE and RE signals).
For a 2 wire interface (=half duplex) enable only one direction at the same time.