Ethernet Port

Overview

The TM3BCEIP is equipped with two isolated switched Ethernet ports (CN1, CN2) enabling easy daisy-chain configuration.

Characteristics

This table describes the Ethernet characteristics:

Characteristic	Description
Function	Modbus TCP, EtherNet/IP
Connector type	RJ45
Auto negotiation	From 10 Mbps half duplex to 100 Mbps full duplex
Cable type	Shielded
Automatic cross-over detection	Yes
Topology	Ring type

Pin Assignment

This graphic shows the RJ45 Ethernet connector pin assignment:

This table describes the RJ45 Ethernet connector pins:

Pin N°	Signal
1	TD+
2	TD-
3	RD+
4	-
5	-
6	RD-
7	-
8	-

NOTE: The TM3 Ethernet Bus Coupler supports the MDI/MDIX auto-crossover cable function. It is not necessary to use special Ethernet crossover cables to connect devices directly to this port (connections without an Ethernet hub or switch).

NOTE: Ethernet cable disconnection is detected every second. In case of disconnection of a short duration (< 1 second), the network status may not indicate the disconnection.

Status LEDs

This graphic shows RJ45 connectors status LEDs:

This table describes the Ethernet status LEDs:

Label	Description	LED
Label	Description	Color	Status	Description
1	Ethernet activity	Green	Off	No activity
1	Ethernet activity	Green	Flashing	Transmitting or receiving data
2	Ethernet link	Green/Orange	Off	No link
			Orange on	Link at 10 Mbit/s
			Green on	Link at 100 Mbit/s