Nortel Networks 400 4.0 Using the Ethernet crossover cable, Setting the crossover connections

178Chapter 13 Initializing the system

If you must change the IP address (due to a conflict with your network), connect to the BCM system using an Ethernet crossover cable (see “Using the Ethernet crossover cable” on page 178), through the serial port (see “Connecting through the serial port” on page 179), or change the IP address using Telset Administration.

Using the Ethernet crossover cable

You use an Ethernet crossover cable connected to a computer with a network card to connect your computer to the LAN card in the BCM main unit. With this connection, you can use Element Manager to configure the BCM system when you are unable to immediately connect your system to the LAN card or your system does not have a network connection.

You use this type of connection in these situations:

•The computer you are using does not have access to the BCM system through the network.

•The BCM system is not connected to a LAN or WAN.

•You have to change the IP address and netmask for the BCM system before you connect it to the network.

Setting the crossover connections

To connect to the BCM system using an Ethernet crossover cable, you need a computer equipped with a 10/100 Base T network interface card and TCP/IP protocol. Figure 90 shows the connections required.

Figure 90 Ethernet crossover cable

3TD+	3TD+
6TD-	6TD-
1RD+	1RD+
2RD-	2RD-

Connecting through Ethernet crossover cable

Use the following two procedures to connect the Ethernet crossover cable and configure your computer to connect to the BCM system.

To connect the Ethernet crossover cable

1Shut down the computer.

2Attach one end of the Ethernet crossover cable to the LAN card on the BCM main unit.

3Connect the other end of the cable to the network interface card on your computer.

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