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IPEX
(IP Electronix)
PH485iX
:
User’s Manual
Page 11 of 12
Doc No. : PH485iX-UM-001
21 August 2019
10.
RS-422 Connecting methods
According to the signal labels on the device, the RS-422 signals are: TX-, TX-, RX+ and RX- that their connections
are as below:
10.1)
RS-422: Point to Point
10.2)
RS-422: Multi Drop Network
RS-422 Cable:
The best cable type for RS-422 side is shielded twisted pair. Maximum cable length could be
1200m.
Terminator-Resistor:
A 120 ohm Terminator-Resistor is installed internally and further external Terminator-
Resistor is NOT REQUIRED.
