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Technical Manual 1.00, PNM-200 Series V1
Page 11 of 19
Interfacing to the RTCU CX1 flex and RTCU CX1 pro
The RJ-45 flying lead cable needs to be connected to the RJ-45 connector of the PNM
interface box and to the RTCU CX1. The PNM interface box does not require any external
DC supply, and will be supplied directly through the digital output #2 of the RTCU CX1.
An example of a connection to the RTCU CX1 pro is shown in the drawing below.
The flying lead cable is color coded, and these colors will be used in the following
description:
Note: only the used colored wires are shown
As seen in the above picture, there are 5 signals that must be connected to the CX1. The
cable colors and the signal names are given in the following table:
Color on RJ-45 flying lead cable
Color on CX1 interface cable
Signal Name
Green/white
Blue
DOUT2
Orange/white
Blue
DOUT2
Blue
White
DGND
Green
Orange
TXD
Blue/white
Yellow
RXD
PNM interface
RJ-45 flying
lead cable
