Nortel Networks BCM1000 manual System equipment and supplies, Basic hardware, Optional equipment

Chapter 5 Installing the BCM1000 69

Analog loop

The following parameters must be met for an analog loop.

•maximum dc loop resistance of 208 Ω

•maximum cable length (0.5 mm or 24 AWG) of 1220 m (4000 ft.)

System equipment and supplies

Use the following checklists to ensure that you have all the required equipment.

Basic hardware

The Business Communications Manager system consists of some combination of the following hardware:

•BCM1000

•BCM1000e

•media bay modules

•telephones and other communication devices such as fax machines

•cabling for connections between hardware units

You can place a maximum of three media bay modules in the BCM1000. You must install an BCM1000e if you require more than three media bay modules.

Optional equipment

The following equipment can be added to the system to support specific requirements beyond the base unit:

•Station auxiliary power supply (SAPS)

•Central answering position (CAP or CAPN) module to as many as five M7324/M7324N telephones in the system

•Business Communications Manager Analog Terminal Adapter 2

(ATA 2) if connecting analog equipment to a digital media bay station module

•Uninterruptable power supply (UPS) as a standalone device

•Analog emergency telephone

Installation and Maintenance Guide