Table of Contents
Advertisement
ICDM-RX/TCP Installation and Configuration Guide
RJ45 Connectors
7.2. RJ45 Connectors
This subsection provides the following information:
•
Connector pin assignments (below)
•
RJ45 Null-Modem Cables (RS-232)
•
RJ45 Null-Modem Cables (RS-422) on Page 81
•
RJ45 Straight-Through Cables (RS-232/485) on Page 81
•
RJ45 Loopback Plugs on Page 81
•
RJ45 RS-485 Test Cable on Page 82
•
Connecting RJ45 Devices on Page 82
You can build your own null-modem or straight-through RJ45 serial cables if you are using the DB9 to RJ45
adapters using the following subsections.
7.2.1. RJ45 Null-Modem Cables (RS-232)
Use the following figure if you need to build an RS-232 null-modem cable. A null-modem cable is required for
Pin
RS-232
RS-422
1
RTS
TxD+
2
DTR
Not used
3
Signal GND
Signal GND
4
TxD
TxD-
5
RxD
RxD-
6
DCD
Not used
7
DSR
Not used
8
CTS
RxD+
RS-485
TRxD+
Not used
Signal GND
TRxD-
Not used
Not used
Not used
Not used
80
Advertisement
Table of Contents
Troubleshooting
