AT&T 206, 820, 410 manual Control Unit

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The Control Unit

The control unit is the center of the MERLIN system in that, one way or another, everything connects to it.

Feature Package 2, which contains the software that enables you to customize your MERLIN system, is a cartridge that plugs into your control unit. It can be used with the control unit for Models 206,410, or 820. These models differ from one another in the number of outside lines and voice terminals (MERLIN system telephones) that they support.

The diagrams on the next two pages show the parts of your control unit. The diagram of the Model 410 control unit serves to illustrate both Model 410 and Model 206.

1. Red Warning Light

The red Iight warns you about problems in the system. (See "Troubleshooting Chart," pages 36-37.)

2. Green Power Light

The green light indicates that power is on.

3. Admin/Normal Switch

When you administer the system, set this switch to Admin. You can leave it in the Admin position permanently, even during normal operation, if you wish. However, to ensure that no accidental administration takes place, you may want to set it back to Normal (see page 17).

4. ToII Prefix/Area Code Switch

If you use a 1 or 0 as a prefix when dialing long-distance calls, set this switch to Toll Prefix. If you do not use a prefix, set the switch to Area Code (see page 16).

5. Tone/Pulse Switch

If you have Touch-Tone service, set this switch to Tone. If you have rotary pulse lines from your telephone company, set it to Pulse.

6. Auxiliary Power

The Auxiliary Power Unit plugs in here to provide the auxiliary power you need if you have an unusual number of accessories, for example, Hands-Free Units or 34-but- ton deluxe voice terminals.

7. On/Off Switch (Model 820 only)

Controls electrical power to the MERLIN system.

8.AC Power Input (Model 820 only)

The electrical power cord plugs in here.

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Contents Merlin Contents Introduction Available Features Control Unit Telephone Company Line Jacks Line and Voice Terminal Modules Model 820 onlyVoice Terminal Jacks Three Types of Cartridges Type I Cartridges Give You Custom FeaturesType II Cartridges Give You Audio Options Type III Cartridges Give You Line-Associated OptionsFeatures and Benefits Feature Description Benefits Fixed FeaturesConference DropSpeaker MessageTransfer RecallProgrammable Features Saved Number button Programmable Features System Features-For Administrator Only Optional Features Equipment Setting Switches on the Control Unit Basic AdministrationADMINISTRATOR/ATTENDANT Voice Terminal Entering Administration Mode Line Administration Initial Feature Assignments Button Initial Feature AssignmentsOutside Auto Dial Or Line D Or Line C Line B Line a Intercom Administrator/Attendant Voice Terminal Call Restrictions Customizing Other Options in the SystemGroup Paging System Speed DialBUTTON-FREE Line Operation Instructions for Button-Free Line Operation System Reset Automatic Line Selection Programmable Line RingingPage Description Code Feature Programming ChartFeature Programming Feature Description Programming Programming Tips for 10-BUTTON Voice Terminals Programming Tips for 34-BUTTON Voice TerminalsProgramming Tips for 5-BUTTON Voice Terminals If You Have a Model 820 With More Than Four LinesTransferred Calls Ringing Patterns Special Information for the System AttendantTransferring Calls Touch TransferIntercom Auto Dial Touch Transfer Touch IntercomSend Message HeadsetTrouble Possible Cause Do This Troubleshootlng ChartWith Feature Package Troubleshooting ChartIndex Procedure Instructions For Use Quick Reference Guide to Administration ProceduresBasic Administration Administering Other System OptionsQuick Reference Guide Touch Administer Send MessageAT&T
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