To connect an expansion unit – Nortel Networks BCM50 User Manual
Page 101

Chapter 9 Connecting the cables to the BCM50 system
101
Installation and Maintenance Guide
If your BCM50 system does not have an expansion unit, proceed to
To connect an expansion unit
1
Locate the expansion cable supplied with the expansion unit.
If have no expansion cable, you can use a shielded category 5e-compliant Ethernet cable
(maximum length of 10 m).
2
Plug one end of the expansion cable into the expansion port on the expansion unit.
3
Perform one of the following tasks (see the figure
Connecting the expansion unit to the
BCM50 main unit
on page 101):
•
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.
Figure 50 Connecting the expansion unit to the BCM50 main 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.
Note: When you plug an expansion unit into the correct port on the main unit, the
LEDs on the expansion unit port light, while the LEDs on the main unit port turn
off.
Expansion unit 1
Main unit
Expansion unit 2
Buses 5/6
Buses 7/8