AT&T 518-455-317 manual System Modules, System Capacity

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 music-on-hold audio source, a loudspeaker paging system, and a call reporting (SMDR) device, such as a printer. It also has a green-wire grounding screw to properly ground the control unit.

■Expansion Processor Module extends the primary processor module’s software capabilities to the lines and extensions located on modules in the expansion carrier.

■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 per-line basis, then connect those lines associated with Caller ID to the line jacks on the 206EC and/or 400EC modules. Any users with system display phones who have Caller ID lines assigned to their extensions will get Caller ID. For more information, see “Caller ID”in Chapter 5.

If you are upgrading from a PARTNER or PARTNER Plus system, you can still use its 200 modules, each providing two line jacks.

If you want message waiting capability on standard phones that are equipped with message waiting lights, you must connect those phones to extension jacks on Release 3.1 (R3.1) 206 modules. Additionally, you need an R3.1 primary processor module.

Hereafter, references to 206 modules include 206E, 206EC, and all 206 modules used the previous release on the product. Similarily references to 400 modules include 400E, 400EC, and all 400 modules used with previous releases of the product.

System Capacity

The combination of 206 and 400 modules installed determines the number of available lines and extensions. The system allows up to 24 lines and up to 48 extensions; however, these maximums cannot be achieved simultaneously:

■For maximum line capacity (24 lines), install four 206 modules and four 400 modules. This arrangement allows up to 24 extensions.

■For maximum extension capacity (48 extensions), install eight 206 modules. This arrangement allows up to 16 lines.

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