Figure 11: Connection Using Hub/Switch/Repeater - GE RX3i User Manual

Chapter 3. Installation and Start-up: Rack-based and RX7i Embedded Interface
10Base-T/100Base Tx Port Pinouts
Note: Pin assignments are provided for troubleshooting purposes only. 10Base-T/100Base-Tx
cables are readily available from commercial distributors. We recommend purchasing
rather than making 10Base-T/100Base-Tx cables.
Connection Using a Hub/Switch/Repeater
Connection of the Ethernet Interface to a 10Base-T or 100Base-Tx network is shown below.
To Other Network
Devices
Note: Care must be taken with the use of active network control devices, such as managed
switches. If a device inserts excessive latency, especially in regards to the ARP protocol,
produced EGD exchanges may generate PLC Fault Table entries indicating the loss of a
consumer when the PLC transitions from STOP to RUN. EGD data will be successfully
transferred after an initial delay.
28 PACSystems* RX7i & RX3i TCP/IP Ethernet Communications User Manual
Pin Number Signal
4
1 TD+
2 TD–
3 RD+
4 NC
5 NC
6 RD–
7 NC
8 NC
Hub/Switch/Repeater

Figure 11: Connection Using Hub/Switch/Repeater

Description
Transmit Data +
Transmit Data –
Receive Data +
No connection
No connection
Receive Data –
No connection
No connection
10/100
10/100
Ethernet
Interface
10BaseT/100Base Tx
Twisted Pair Cable
GFK-2224Q