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COM Module CFLink Documentation

Legend:
RS232 without handshaking/flow control	RS232 with RTS/CTS	RS485 half-duplex	RS485/422 full-duplex

1 232 232 2 3 232 232 4 4 x RS232	1 232 232 2 3 232H   2 x RS232 1 x RS232 RTS/CTS	1 232H   3 232H   2 x RS232 RTS/CTS	1 485   3 232 232 4 1 x RS485 half-duplex 2 x RS232	1 485   3 232H   1 x RS485 half-duplex 1 x RS232 RTS/CTS
1 485   3 485   2 x RS485 half-duplex	1 485   3 485/422   1 x RS485 half-duplex 1 x RS485/422 full-duplex	1 485/422   3 485/422   2 x RS485/422 full-duplex	1 485/422   3 232H   1 x RS485/422 full-duplex 1 x RS232 RTS/CTS	1 485/422   3 232 232 4 1 x RS485/422 full-duplex 2 x RS232

Note that when using any RS232 mode in combination with RS485 or RS422 (any duplex type), the RS232 must be on ports 3 and/or 4.
RS232 can never be in ports 1 or 2 when using alongside RS485 or RS422.

THE FOLLOWING MODES ARE INVALID!
1 232 232 2 3 485   2 x RS232 1 x RS485 half-duplex	1 232H   3 485   1 x RS232 RTS/CTS 1 x RS485 half-duplex	1 232 232 2 3 485/422   2 x RS232 1 x RS485/422 full-duplex	1 232H   3 485/422   1 x RS232 RTS/CTS 1 x RS485/422 full-duplex