An Example System Setup, Control Unit, Extensions

An Example System Setup

The next page shows a control unit with two 206 modules and two 400 modules, giving the system a capacity of 12 outside lines and 12 extensions. Although your system may differ, this example will give you an idea of the types of equipment you can connect to it. In the example, system phones and industry-standard devices are connected to nine extensions. The circled numbers in the figure refer to the following list, which gives a brief description of the system’s hardware components.

Control Unit

The control unit consists of these components:

Backplane. The backplane channels power to the system and connects the system modules.

206 Modules. Each 206 module has jacks for two lines and six extensions.

400 Modules. Each 400 module provides four line jacks but no extensions. Notice that the 400 modules are installed to the right of the 206 modules.

Processor Module. The processor module contains the software that provides the system’s features. It also has PAGE, SMDR, and MUSIC ON HOLD jacks.

PAGE Jack. A loudspeaker paging system plugs directly into this modular jack. The system is compatible with any AT&T paging system, including the AT&T PagePac6® shown here.

SMDR Jack. A call reporting (or SMDR–Station Message Detail Recording) device connects directly to this jack. AT&T’s Call Accounting Terminal serial printer and box are shown here.

MUSIC ON HOLD Jack. AT&T’s Magic on Hold® is connected to this jack to provide customized music and messages for callers on hold. Other types of audio equipment (including a CD player, cassette player, or stereo receiver) can be connected using an audio cord with an RCA phono plug (not supplied).

If you use equipment that rebroadcasts music or other copyrighted materials, you may be required to obtain a license from a third party such as ASCAP or BMI. Or you can purchase a Magic On Hold system from AT&T, which does not required you to obtain such as license.

Line Jacks. The top two jacks on each 206 module, and all four jacks on each 400 module, connect to outside telephone lines.

Extension Jacks. The bottom six jacks on each 206 module connect inside wiring for telephones and other telecommunications equipment.

Network Interface Jacks. These jacks provide access to telephone lines from the local telephone company. Each outside line is connected to the system by plugging one end of the line cord into one of these jacks, and the other end into a line jack on a 206 or 400 module.

Extensions

Various devices—including system phones and industry- standard devices—can be connected to the modular wall jacks. The modular wall jacks connect to the extension jacks in the control unit by way of the building’s inside wiring.

Extension 10: These devices are connected:

■MLS-34D® Display Phone. Typically, the receptionist on extension 10 has an MLS-34D display phone like the one shown here. The display shows the time, dialed numbers, the duration of calls, and programming messages.

An MLS-34D, MLS-18D®, or MLS-12D® is required for system programming at extension 10 or 11, or both. Use an MLS-18D only if there are no MLS-34D phones in the system; use an MLS-12D only if there are no MLS-34D or MLS-18D phones in the system.

■Call Assistant™ Intercom Autodialer. An Intercom Autodialer is connected to the phone, for dialing extensions and transferring calls to them with one touch and for seeing which extensions are busy.

■Standard Touch-Tone Phone. During a power failure, the MLS-34D phone on extension 10 will not work, but the receptionist can use the standard phone to place and receive calls on line 1.

Extension 11: MLS-34D Display Phone. Another MLS-34D is connected to programming extension 11. This means you can program the system from this extension while the receptionist at extension 10 is free to handle calls.

Extension 12: MLS-18D Phone and Answering Machine. An MLS-18D phone and an answering machine are connected to this extension.

Extension 13: Standard Phone. A standard phone (such as you might have in your home) is connected directly to the extension jack.

Extension 14: Doorphone. A doorphone is installed at the building entrance. When someone at the entrance presses the button on the doorphone, the designated extensions in the office signal automatically. (Any number of extensions can be designated as doorphone alert extensions.)

Extension 15: Bell. A loud bell is connected directly to this extension jack. Any line programmed to ring on extension 15 activates the loud bell—to alert users of an incoming call in a large area, such as a warehouse.

Extension 16: MLS-12D Display Phone. This display phone can handle 10 outside lines.

Extension 17: Fax Machine and Standard Phone. A fax machine and standard phone share this extension. This lets you have the use of another phone when the fax machine is idle. (You can use a system phone at another extension to monitor fax machine activity—see “Fax Management Feature” of “Using Fax Machines” in Chapter 4 of the PARTNER Plus Communications System Programming and Use guide.)

Extension 18: MLC-6 Cordless Phone. An AT&T MLC-6 cordless phone is connected to this extension. It works like the corded MLS-6® system phone.

2An Example System Setup