AT&T MLS-12DTM, MLS-12TM, MLS-6TM manual Removing a Module, Replacing a Module

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Removing/Replacing Modules

Removing a Module

To remove a processor or 206 module:

1.Disconnect the AC power cord from the wall outlet.

2.Remove the control unit cover by sliding it directly off the backplane.

3.Grasp the front top of the module with one hand while holding down the locking tab at the base of the module with the other hand. With the locking tab down, put one finger of the same hand in the wire bracket on the bot- tom front of the module. Using both hands, pull the module forward and out, being careful not to strain the wires connected to the module. (If there is not enough slack in the wires, label and disconnect them before remov- ing the module. )

WARNING: There are no field-serviceable components inside the 206 modules or backplane. Hazardous voltages within. DO NOT OPEN THE MODULES!

Figure 2-4. Removing 206 Module

Replacing a Module

To replace a defective processor or 206 module:

1.Complete the steps above for removing the module.

2.Disconnect the first telephone line from the old module and connect it to the new module. Repeat for the second telephone line (if applicable).

3.Disconnect the first extension line from the old module and connect it to the new module. Repeat for the other extensions.

4.Insert the new module as described on page 2-2.

5.Connect the AC power cord. The system performs the necessary reset procedures automatically. You should not need to reprogram the system unless you replaced the processor module, or unless you added or removed telephone lines and/or extensions when replacing the 206 modules.

2-6 Installing the Hardware

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Contents AT&T Copyright 1990 AT&T All Rights Reserved Issue October Contents Page Product Safety Labels How to Use This GuideAbout This Guide Reference Materials How to Comment on This GuideSystem Components Specifications Partner TeIephones Control UnitOther Equipment Example System Setup An Example System SetupSystem Components and Specifications Specifications Grounding to comply with Underwriters Laboratories UL Technical and Environmental SpecificationsInstalling the Hardware General Guidelines Mount the Backplane on a Wall Installing the Control UnitInstalling the Hardware Press and hold # button for 5 seconds Installing Telephones and Other EquipmentWall Mounting a Partner Telephone Replacing a Module Removing a ModuleSystem Programming Alphabetic List of Procedures Programming Extension Programming MethodsProgramming Overlay Programming Overlay General Instructions System Date Programming ProceduresSystem Day Number of Lines System TimeConsideration Transfer Return Rings PBX Dial-Out CodeCode #105 Code #106Code #107 Recall Timer DurationCode #108 Rotary Dialing Time out Outside ConferenceCode #109 Code #201 Dial ModeCode #202 Line TypeCode #203 Hold Disconnect TimeCode #301 Line AssignmentValid Entries 1 = Assigned Code #302 Line Use RestrictionValid Entries 1 = Code #303 Display LanguageValid Entries 1 = English Code #304 Automatic PrivacyCode #305 Abbreviated RingingCopy Settings Code #401 Outgoing Call RestrictionsValid Entries Any 4 digits Toll Call Prefix System PasswordCode #402 Code #403Code #404 Disallowed Phone Number ListsPrevents all ca!ls to area code Code #405 Disallowed List AssignmentCode #406 Emergency Phone Number ListCode #407 Allowed Phone Number ListsCode #408 Code #501 Pickup Group ExtensionsCode #502 Calling Group ExtensionsCode #503 Night Service ButtonProgramming Notes Code #504 Night Service GroupCode #601 Fax Machine ExtensionsCode #602 Music On HoldValid Entries 1 = Active Code #603 HotlineDoorphone 2 Extension Code #605 Doorphone 1 ExtensionCode #604 Code #606 Doorphone Alert ExtensionsCode #728 System Reset Programming Saved System Speed Dial NumbersPress Feature 0 0 . The display reads Stop EnableFunction Button Display Description and Example Pause RecallCentralized Telephone Programming Personal Speed Dial Numbers Overview Buttons and Labeling Sheets for Partner Phones To exit Automatic Line Selection, press the star * twice Automatic Line SelectionValid Entries Immediate ring Line Ringing OptionsPersonal Speed Dial Numbers Auto Dial Numbers Do Not Disturb Feature CodeExclusive Hold Recall Save Number RedialLast Number Redial Conference Drop Privacy Touch-Tone EnableMessage Light On Message Light Off Pickup Group Call PickupLoudspeaker Paging Calling Group Programming Method a Programming for Operation Behind PBX or CentrexProgramming Method B Dialing Restrictions Summary No Outside Line AccessOutside Dialing Allowed Dial 1 201 Dial 1 800 Dialing Restrictions An ExampleFCC Information Page Index Hotline #603, 3-31programming for, 2-1standard phone used as I i Wires, connecting, 2-2to 2-3Wiring specifications, 1-5,2-1 O g r a m m i n g Quick Reference System Programming Programming Quick Reference Issue 2, October
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MLS-12DTM, MLS-12TM, MLS-6TM, MLS-12D specifications

The AT&T MLS-12 and MLS-12D are advanced mobile communication solutions designed to meet the demands of modern businesses and organizations. These systems are known for their robust performance and reliability, making them ideal for various sectors including public safety, transportation, and industrial applications.

One of the main features of the MLS-12 is its strong emphasis on voice clarity and audio quality. The system is integrated with cutting-edge noise reduction technologies that ensure clear communication even in noisy environments. This is particularly important for users operating in the field, where ambient noise can significantly impact radio communications.

The MLS-12D, on the other hand, enhances the capabilities of the standard MLS-12 by incorporating digital technologies that allow for advanced data services alongside voice communications. This dual functionality is critical in today's fast-paced environment, where instant access to information can streamline workflows and enhance decision-making processes. Users can send and receive text messages, access applications, and share data in real time, all while maintaining high-quality voice communications.

Both models feature an intuitive user interface designed for ease of operation, enabling quick access to essential functions. They are equipped with durable hardware built to withstand harsh conditions, ensuring operational reliability in environments where traditional communication systems may falter.

In terms of connectivity, the MLS series supports various frequency bands and communication protocols, making it versatile and compatible with multiple networks. This flexibility allows organizations to tailor their communication systems to fit unique operational requirements, further enhancing productivity.

Security is a significant concern in any communication system, and the AT&T MLS-12 and MLS-12D address this with advanced encryption technologies that safeguard voice and data transmissions. This feature is crucial for sectors that handle sensitive information, as it helps protect against unauthorized access and data breaches.

In conclusion, the AT&T MLS-12 and MLS-12D stand out as formidable choices for organizations looking to enhance their communication capabilities. With their emphasis on audio quality, advanced data services, user-friendly interfaces, robustness, and security, these devices are well-equipped to meet the evolving demands of modern communication in various industries.
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