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 |
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RS 485/422TX(A) | 1 | TX pair for RS-422 and 4-wire RS-485 |
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RS 485/422TX(B) | 2 | |
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RS-485A alt RS-485/422RX(A) | 3 | RX pair for all modes (combined RX/TX for 2-wire RS-485) |
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RS-485B alt RS-485/422RX(B) | 4 | |
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