Control Unit
The control unit is the heart of the system; it is made up of one or two carriers, and it houses the system modules. You can use either the primary carrier, or the primary carrier and the expansion carrier if you need more lines and extensions. Each carrier housing includes a backplane and a cover. All system modules slide into the backplane, which channels power to the system. The cover slides onto the front of the backplane after all the system modules have been installed.
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System Modules
The following system modules can be installed in your system:
■Primary Processor Module provides the software intelligence that controls the system’s features. It has jacks for a
■Expansion Processor Module extends the primary processor module’s software capabilities to the lines and extensions located on modules in the expansion carrier. It has a
■206E Module has jacks to connect a maximum of two outside telephone lines and six extensions to the system. You can connect telephones and other telecommunications devices (such as fax machines and modems) to the extension jacks (either directly or through your building’s modular wall jacks). Each 206E module has a green power indicator that shows it is receiving power. The system requires at least one 206E module.
■400E Module is similar to the 206E module, but without extension jacks. It has four outside line jacks. This module is an inexpensive way to add lines when you do not need more extensions.
■206EC/400EC Modules provide the same capabilities as the 206E and 400E modules, but add support for Caller ID information on system display phones. To get Caller ID, first you must subscribe to the service from your local phone company (if it is available) on a
Hereafter, references to 206 modules include 206E, 206EC, and all 206 modules used with previous releases of the product. Similarly, references to 400 modules include 400E, 400EC, and all 400 modules used with previous releases of the product.
