Telephone System Installation and Maintenance Guide

80 Chapter 7 Installing the main unit
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Refer to the following sections for information on installing the main unit:
• “Unpacking the main unit”
• “Installing the BCM50 unit in an equipment rack”
• “Installing the BCM50 unit on the wall” on page 84
• “Installing the BCM50 unit on a desktop or shelf” on page 89
Unpacking the main unit
Open the main unit box and check that you have all of the components listed below:
• one main unit (either a BCM50, a BCM50a, or a BCM50e)
• one power supply
• one power supply cable
• one power supply retention clip
• four rubber feet
• one screw to secure the RJ-21 telephony connector
• one cable tie
• a documentation CD
•the BCM50 First Time Installation and Configuration Guide (N0027149)
Visually inspect the components for any damage that may have occurred during shipping.
If you find any damage, contact your Nortel sales representative.
Installing the BCM50 unit in an equipment rack
You can install a BCM50 main unit in a standard 19-inch equipment rack along with your other
networking and telecommunications equipment.
To rackmount a BCM50 unit, you need the optional rackmount kit (NT9T6325). This kit provides
the parts to mount up to four BCM50 units into a standard 19-inch equipment rack. The BCM50
unit mounts into the tabs on the rackmount shelf. These tabs prevent the unit from sliding around
or falling off the shelf. If the BCM50 system includes additional units, another unit can be
mounted to a second set of tabs on the rackmount shelf. Any additional units can be mounted to
tabs on the top of the other units.
If you need to better secure a BCM50 unit, use the screws provided (four per unit) to screw the
BCM50 to the rack. This is known as a hardened installation. For a hardened installation, install
only two units per rack – do not stack the units.
You can also use the optional patch panel to simplify the connections to the BCM50 RJ-21
telephony connector.
Caution: Refer to “Checking the installation prerequisites” on page 75 for acceptable
environmental conditions before selecting a location for the BCM50 system.