Omega Vehicle Security zSeries manual 10 RJ45 Pinout 2 10Base-T Crossover Wiring

2.8 Network Communication Interfaces 2.8.1 10Base-T RJ-45 Pinout

The 10BASE-T Ethernet network (RJ-45) system is used in the Coordinator for network connectivity. The 10 Mbps twisted-pair Ethernet system operates over two pairs of wires. One pair is used for receiving data signals and the other pair is used for transmitting data signals. This means that four pins of the eight-pin connector are used.

Pin	Name	Description
1	+Tx	+ Transmit Data
2	-Tx	- Transmit Data
3	+RX	+ Receive Data
4	N/C	Not Connected
5	N/C	Not Connected
6	-Rx	- Receive Data
7	N/C	Not Connected
8	N/C	Not Connected

Figure 2.10 RJ45 Pinout

2.8.2 10Base-T Crossover Wiring

When connecting the Coordinator directly to the computer, the transmit data pins of the computer should be wired to the receive data pins of the Coordinator, and vice versa. The 10Base-T crossover cable with pin connection assignments are shown below.

Figure 2.11 10Base-T Crossover Cable Wiring

Use straight through cable for connecting the Coordinator to an Ethernet hub. The ports on the hub are already crossed

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