AT&T MLC-5 Installation Manual Download Page 6

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.

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.

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).

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
plugglng one end of the line cord into one of these jacks,
and the other end into a Iine 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 programming 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. Similarly, 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 ring 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.

2

An Example System Setup

Summary of Contents for MLC-5

Page 1: ...AT T PARTNER Plus Communications System Release 3 Installation ...

Page 2: ...s set out in the Radio Interference Regulations of the Canadian Department of Communications Le present appareil numerique n emet pas de bruits radioelectriques depassant Ies Iimites applicables aux appareils numeriques de la classe A prescrites dans Ie Reglement sur Ie brouillage radioelectrique edicte par Ie ministere des Communications du Canada Trademarks MLS 34D MLS 18D MLS 12D MLS 12 MLS 6 C...

Page 3: ...es Installing the Control Unit and Modules Connecting Lines and Extensions Connecting Caller ID Display Units Assembling System Phones Desk Mounting Wall Mounting Connecting and Testing Telephones Connecting Paging Music On Hold and Call Reporting SMDR Devices Connecting Intercom Autodialers ii 1 2 4 5 5 6 6 6 7 7 9 11 12 12 13 14 15 16 Equipment Upgrades 17 Adding New Modules 17 Replacing System ...

Page 4: ... They prevent the product from overheating DO NOT place the product in a separate enclosure unless proper ventilation is provided Additional Safety Instructions for Installation Personnel 1 DO NOT install telephone wiring during a lightning storm 2 DO NOT install telephone jacks in a wet location unless the jack is specifically designed for wet locations 3 Never touch uninsulated telephone wires o...

Page 5: ...ly it ends with important system specifications and requirements If your company already has modular jacks for all outside lines and extensions you may be able to use the existing wiring to install the system hardware and connect telephones to the system yourself To have an AT T service technician install and customize your system or change existing wiring call 1 800 247 7000 in the continental U ...

Page 6: ...ng 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 programming extension 10 has an MLS 34D display phone like the one shown here The display shows the time...

Page 7: ...CONTROL UNIT EXTENSIONS Extension 10 Extension 18 Extension 11 Extension 12 Extension 17 Extension 16 Extension 15 Extension 13 Extension 14 An Example System Setup 3 ...

Page 8: ...ur 206 modules and a processor module weighs approximately 27 5 pounds or 12 3 kilograms In addition if you need modular telephone cords for connecting the extension jacks on the control unit to the modular connecting blocks for extensions in the equipment room short telephone cords for wall mounting MLS model phones or a 355A 355AF adapter and D8W telephone cord for connecting a call reporting de...

Page 9: ...stem phone on one extension you may want to turn off the standard phone s ringer during normal use Hotlines A hotline extension should be connected to a standard phone rather than a system telephone but can ring any type of phone A hotline phone can also be set up to ring the paging system so announcements can be made over the loudspeaker Do not connect a Hotline phone to extension 10 16 22 or 28 ...

Page 10: ...ng adapter see Using A Direct Connection below If your system phone does not provide a built in auxiliary jack or if you want to connect two standard devices together you must use an AT T 267F2 bridging adapter to combine the two devices on one extension see Using a Bridging Adapter below Using A Direct Connection Figure 2 shows you how to connect a standard device directly to a system phone using...

Page 11: ... leaving the screw heads approximately 1 4 away from the wall Slip the backplane onto the screws and tighten them Slide the processor module into the center slot of the control unit pressing the locking tab on the bottom of the slot as you push in the module will make insertion easier Push slowly but firmly until the module locks into place with two snaps and is attached to the rear of the backpla...

Page 12: ... main Power Jack circuit breaker On a PARTNER Plus 220V system move the on off switch to the on position l 5 Check all green lights on the fronts of the modules If all the lights are lit you can go to the next section otherwise A If a single light is out power down the control unit reseat the module then power up the control unit If multiple lights are out power down the control unit reseat the fi...

Page 13: ...s on 206 and 400 555 1345 555 1346 Network Interface Jacks modules starting with the top line jack on the leftmost 206 module Route each cord through the hook on the front of the module and then push the cords through the space below the module and out through the back Pull the cords from behind the backplane leaving at least two feet of slack in the cords for future maintenance so you can easily ...

Page 14: ...ou can easily reconnect cords after replacing system modules Connect the free end of each modular telephone cord to the modular connecting blocks for system extensions Place the cover on the control unit this is especially important to keep the modules dust free and the system working efficiently To cover the control unit while holding the cover at an angle gently move the top rear edge of the cov...

Page 15: ...hat has Caller ID service 2 B C 3 A B C D E A Plug one end of a line cord into a jack on the bridging adapter Plug the free end of the line cord into the appropriate line jack in the control unit Route the cord as you did for other line and extension cords Plug one end of a second line cord into the other jack on the bridging adapter Plug the free end of the cord into the appropriate modular conne...

Page 16: ...ltiple jacks plug the cord into the LINE jack Push the cord into place along the channel on the bottom of the phone If you want to raise the angle of the phone go to Step 2 if not or if you have a phone with a fixed stand go to Step 3 To install the telephone stand required for the MLS 34D gently place the phone upside down with the low end of the phone to your right Insert the tab on the narrow e...

Page 17: ... the hole in the center of the stand and plug it in Insert the other tab into the right slot pushing the stand down and slightly inward until the tab locks into place Insert the phone cord through the center of the stand and plug it into the jack on the base of the phone then plug the other end into the modular wall jack Mount the phone on the wall plate using the screw keyholes on the base of the...

Page 18: ...ing Step 1A and label the button sheet as in Steps 3A and 3B Connecting and Testing Telephones 1 To connect a phone plug the modular telephone mounting cord into a modular wall jack or directly into a 206 module extension jack If you are connecting a standard phone and its mounting cord is loose try an AT T D2R mounting cord instead To install two phones or other devices on a single extension jack...

Page 19: ...n such a license 1 A B 2 A B Insert an RCA phono plug into the MUSIC ON HOLD jack on the processor module Route the cord as you did for line and extension cords and then connect it to the audio source First set the unit s volume to the lowest setting Use a flathead screwdriver to turn the volume control on the processor module counterclockwise until it stops Place a call on hold and listen while a...

Page 20: ... through the groove at the back of the autodialer and plug it into the OUT jack Route one end of the modular telephone cord through the groove at the back of the autodialer and plug it into the IN jack plug the other end into the wall jack for extension 10 or 11 Connect the keyed power cord supplied with the autodialer to the POWER jack on the bottom of the autodialer routing it through the groove...

Page 21: ...d to the rear of the backplane and held in place by the locking tab on the bottom of the slot Do not force the module If it does not insert easily remove the module clear any obstruction and reinsert See Connecting Lines and Extensions for instructions on connecting line and or extension jack cords to the new module To power up the control unit push in the main circuit breaker On a PARTNER Plus 22...

Page 22: ... until it detaches from the backplane Power Jack Handle Check the slack in the wires If there is not enough slack to remove the module without pulling the line and extension cords free label and disconnect the wires before continuing with Step 2B Place one hand on top of the module With your other hand grip the plastic bracket on the bottom front of the module and use your middle finger to hold do...

Page 23: ... unit reseat the module then power up the control unit If multiple lights are out power down the control unit reseat the first leftmost module that has a light out then power up the control unit B If the lights are still out call the appropriate support telephone number as instructed on the inside front cover 5 A To replace the cover while holding the cover at an angle gently move the top rear edg...

Page 24: ... x 12 7 x 17 1 cm MLC 6 phone 9 4 D x 3 4 H x 7 W or 23 9 x 8 6 x 17 8 cm MLS CA24 Autodialer 9 7 D x 5 3 H x 3 4 W or 24 6 x 13 5 x 8 6 cm 4 0 lbs or 1 8 kgs 4 5 lbs or 2 0 kgs 4 0 lbs or 1 8 kgs 5 5 lbs or 2 5 kgs 3 1 lbs or 1 4 kgs 2 8 lbs or 1 3 kgs 2 8 lbs or 1 3 kgs 2 7 lbs or 1 2 kgs 2 7 lbs or 1 2 kgs 2 8 lbs or 1 3 kgs 1 3 lbs or 0 6 kgs Switch Fabric Full digital nonblocking Electrical 1...

Page 25: ...t or system B The grounding conductor mentioned in item A is to be connected to ground at the service equipment C The attachment plug receptacles in the vicinity of the product or system are all to be of a grounding type and the grounding conductors serving these receptacles are to be connected to earth ground at the service equipment Requirements for Installation of a telephone or other standard ...

Page 26: ...518 455 213 Issue 1 June 1992 Graphics 1988 ...

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