Nortel BCM50, Installation And Maintenance Manual

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Chapter 6 Checking the installation prerequisites 75
BCM50 Installation and Maintenance Guide
Chapter 6
Checking the installation prerequisites
Before you install a main unit or expansion unit, do the following:
• Determine the location for the BCM50 units, telephones, and other equipment based on
spacing and electrical requirements.
• Order the required trunks from the central office.
• Ensure that you have all the equipment and supplies you need to install the system.
Refer to the following sections for information on BCM50 installation prerequisites:
• “Environmental requirements”
• “Electrical requirements”
• “Site telephony wiring requirements” on page 76
• “System equipment, supplies, and tools” on page 77
Environmental requirements
Ensure you meet the installation environmental requirements. The installation area must be:
• a minimum of 4 m (13 ft.) from equipment such as photocopiers, electrical motors, and other
equipment that produces electromagnetic, radio frequency, and electrostatic interference
• within 1.5 m (5 ft.) of a three-wire grounded electrical outlet
• clean, free of traffic and excess dust, dry, and well ventilated
• within the temperature ranges of 5°C and 50°C (40°F and 120°F)
• between 20% and 80% non-condensing relative humidity
• structurally strong enough and with enough space to support the BCM50 units
• a minimum of 46 cm (18 in.) from the floor
Electrical requirements
Ensure you meet the following electrical requirements:
• Power must be supplied from a non-switched, unobstructed outlet within 1.5 m (5 ft.) of the
BCM50 units.
• The supplied power must be a dedicated 110 V to 120 V ac nominal (or 220 V to 240 V ac
nominal), 50/60 Hz, 15 A minimum service with a third-wire safety ground. The third-wire
safety ground provides shock protection and prevents electromagnetic interference.
Note: The installation area must be of sufficient height from the floor to prevent water
damage.