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Hardware Reference Guide - NX-Series NetLinx Integrated Controllers
Wiring and Connections
The following table lists the pinouts for the RS-232 ports.
In the above table, pin 1 is located on the right side of the port, and the pinouts count up to the left.
RS-232/422/485 Ports
The RS-232/422/485 ports (ports 1 and 5 on the NX-3200/4200; port 1 on the NX-1200/2200) are 10-pin 3.5 mm mini-Phoenix
(male) connectors used for connecting A/V sources and displays. By default, these ports are RS-422- and RS-485-disabled ports.
These ports can be used as RS-232 ports by disabling RS-422 and RS-485 on the ports. Only with RS-422/485 disabled will the
ports operate as RS-232. See the
command in the NetLinx Programming chapter of the
NX-Series Controllers WebConsole and Programming Guide for more information on disabling RS-422 and RS-485 on these ports.
These ports support most standard RS-232, RS-422, and RS-485 communication protocols for data transmission.
FIG. 22 displays the RS-232/422/485 ports for each NX-series controller.
FIG. 22
RS-232/422/485 ports
The following table lists the pinouts for the RS-232/422/485 ports.
In the above table, pin 1 is located on the right side of the port, and the pinouts count up to the left.
RS-232 Port Pinouts
Pin 1
GND
Pin 2
RXD
Pin 3
TXD
Pin 4
CTS
Pin 5
RTS
RS-232/422/485 Port Pinouts
Pin 1
GND (used in RS-232 and RS-422)
Pin 2
RXD (used in RS-232)
Pin 3
TXD (used in RS-232)
Pin 4
CTS (used in RS-232)
Pin 5
RTS (used in RS-232)
Pin 6
TX+ (used in RS-422 and RS-485)
Pin 7
TX- (used in RS-422 and RS-485)
Pin 8
RX+ (used in RS-422 and RS-485)
Pin 9
RX- (used in RS-422 and RS-485)
Pin 10
+12V
NX-3200/4200
NX-2200
NX-1200
