Nortel Networks BCM50 manual To connect an expansion unit

Chapter 9 Connecting the cables to the BCM50 system 99

To connect an expansion unit

Note: Keycodes are required for the expansion ports to function. If you purchase a keycode for one expansion port only, expansion/LAN port 2 (on the left) is active.

1Locate the expansion cable that was supplied with the expansion unit.

If you do not have the expansion cable, you can use a shielded category 5e-compliant Ethernet cable (maximum length of 10 m).

2Plug one end of the expansion cable into the expansion port on the expansion unit.

3Do one of the following (see Figure 43):

•To connect the first expansion unit: Plug the other end of the expansion cable into expansion/LAN port 2 on the main unit. This expansion unit is now designated as Expansion 1 in Element Manager.

•To connect the second expansion unit: Plug the other end of the expansion cable into expansion/LAN port 3 on the main unit. This expansion unit is now designated as Expansion 2 in Element Manager.

Note: When you plug an expansion unit into the correct port on the main unit, the LEDs on the expansion unit port light up, while the LEDs on the main unit port go out.

Figure 43 Connecting the expansion unit to the BCM50 Main Unit

Expansion unit 1 Main unit Expansion unit 2

Buses 5/6

Buses 7/8

BCM50 Installation and Maintenance Guide