Page 12 AXIS P1353/P1354 Installation Guide
RS-485/422 - two 2-pin terminal blocks for RS-485/422 serial interface used to control auxiliary
equipment.
The RS-485/422 serial port can be configured in the following port modes:
• Bidirectional RS-485 half-duplex port for data transmission using two wires, one
combined RX/TX pair.
• Bidirectional RS-485 full-duplex port for data transmission using four wires, one RX
pair and one TX pair.
• Unidirectional RS-422 port for transmitting or receiving data using two wires,
RX- or TX pair.
• Bidirectional RS-422 full-duplex port for data transmission (point-to-point) using four
wires, one RX pair and one TX pair.
Function Pin Notes
RS 485/422TX(A) 1 TX pair for RS-422 and 4-wire RS-485
RS 485/422TX(B) 2
RS-485A alt RS-485/422RX(A) 3 RX pair for all modes (combined RX/TX for 2-wire RS-485)
RS-485B alt RS-485/422RX(B) 4
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