84 Chapter 7 Installing the main unitN0027152 01N0027152 01Installing the BCM50 unit on the wallTo wallmount a BCM50 unit, you need a wallmount bracket. The wallmount bracket is attached tothe wall, and the BCM50 unit is connected to the wallmount bracket. If the BCM50 systemincludes additional units, you need a wallmount bracket for each unit. Each wallmount bracketincludes a cable management tray that you use to store and organize the cables connected to theBCM50 units. An optional wiring field card simplifies the cable connections for the lines andextensions.If desired you can install an optional plywood backboard 2 cm (3/4 in.) thick.Use the following procedures to install the BCM50 unit on a wall:• “To install the BCM50 wallmount bracket”• “To install the BCM50 unit on the wallmount bracket” on page 86To install the BCM50 wallmount bracket1 Use a pencil to mark the location of the plywood backboard on the wall. Use a ruler and a levelto make sure that the plywood backboard is level.2 Mount the plywood backboard securely to the wall.3 Place the wallmount bracket on the backboard and mark the location of the centerkeyhole-shaped screw hole on the plywood backboard (see Figure 32 on page 85).Caution: Refer to “Checking the installation prerequisites” on page 75 for acceptableenvironmental conditions before selecting a location for the BCM50.Caution: BCM50 units must be mounted side-by-side on the wall. DO NOT attempt tomount units on top of each other when using the wallmount option.Caution: To keep the BCM50 operating at the optimal internal temperature, keep the top,sides, and rear clear of obstructions and away from the exhaust of other equipment.Note: Nortel recommends the use of a plywood backboard to simplify installingmultiple BCM50 units. However, due to the compact size and light weight of theBCM50 units, a backboard is not required.If you are not using a backboard, use the appropriate wall anchors or ensure the screwsare in a stud.
