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AT&T AT&T Summary of Voice Terminals, Terminal Circuit Pack Type Model Description Interface

Models: AT&T

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TABLE 4-C. Summary of Voice Terminals

TERMINAL			CIRCUIT PACK
TYPE *	MODEL	DESCRIPTION	INTERFACE
	420	Memory Set W/Built-In Speakerphone
	500MM	Rotary Desk Set	ZTN78
Single-Line	500SM	Rotary Set Compatible	TN742
Tip Ring		with 4A Speakerphone	TN742
(Analog)	554BMPA	Rotary Wall Set
†	2500MMGB	Basic Touch-Tone Desk Set
	2500DMGC	Basic Desk with Message Waiting
	2500SM	Basic Desk Compatible
		with 4A Speakerphone
	2514 BMW	Basic Desk with Headset Jack
	2554BM	Basic Wall
	7101A	Desk or Wall

	7302H01D	5-Button	ZTN79
MERLIN	7303H01D	10-Button
Multiline	7305H01D	34-Button
7300H Series	7305H02D	34-Button Deluxe
(Hybrid)	7305H03B	BIS Set (Built-In Speakerphone)
	7305H04C	BIS Set with Display
	7309H01B	HFAI Set (Hands-Free-Answer
		on Intercom)

MET ‡	2991C05	10-Button (Desk)	TN735
Multiline	2991D05	10-Button (Wall)
(Hybrid)	2993C04	10-Button with BIS
	7302M	12-Button (Desk)

*System 25 supports several voice terminals that are no longer orderable. These include MET sets and the 34-button (basic) MERLIN set.

†The system supports equivalent industry standard touch-tone single-line sets. Voice terminals connected via the ZTN78 Tip Ring Line CP must have a REN less than or equal to 1.20 A/B.

‡The 2991C04 set [with Busy Lamp Field (BLF)] will not operate with System 25 unless specially modified.

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AT&T AT&T manual Summary of Voice Terminals, Terminal Circuit Pack Type Model Description Interface, 554BMPA, ZTN79, Met ‡

Contents

AT&T System 1987 AT&T All Rights Reserved To Order Copies of this Document Refer to Document NumberMeans of Connection Notification to the Telephone CompanyRepair Instructions Private Line Service Rights of the Telephone CompanyHearing AID Compatibility FCC Registration InformationFCC Warning Statement Contents Section OverviewOverview OrganizationSystem 25 Description MerlinSystem 25 Block Diagram Safety Call Handling CapabilitiesBusiness Communications Needs Incoming Business Communications DidPDC Outgoing Business Communications Internal Call Movement Data Communications Page Growth & Rearrangement Page Conclusions List of Figures SmdrBIS StarlanSAT LED Administration Requirements DescriptionConsiderations InteractionsSystem Features Feature Name TypeNetwork Features Data FeaturesFeature Name FeatureStation Features Feature Name SINGLE-LINE Multiline Terminal Button Label †Attendant Features Feature Name Console Button Label † TypeAccount Code Entry Interactions Attendant Call Extending Selector Console optional Attendant CAMP-ON Interactions Call Coverage/Direct Group Calling DGC IfNone Attendant Cancel Attendant CONSOLE, Direct Trunk Direct Trunk Attendant ConsoleDual Console Operation Position BusySystem Assign Primary Secondary Attendant Direct Trunk Attendant Console Connections Attendant CONSOLE, Switched Loop Fixed Buttons FigureProgrammable Feature Buttons Figure Attendant Message Waiting Attendant Message Waiting Used byDSS Display FigureSwitched Loop Operation Console Buttons and DisplayAnswering a Call on a Loop Button Placing a Call on a Loop ButtonCall Types RingingAttendant Features Call OriginationsSwitched Loop Attendant Console Connections Attendant Direct Extension Selection Model 23A1 Attendant Direct Extension Selector Console Considerations Attendant Direct Extension Selector Console Connections Attendant Display V2 Slac Only Call Information DisplayIncoming did call Incoming call from a system userIncoming coverage call Returning parked call Call from console to system userOutgoing trunk call Conference set up by attendant Inspection ModeConference 3 Conference 4Timer Functions Attendant Forced Release V2 Slac Only Only JoinAttendant Message Waiting Systems with Switched Loop Attendant Consoles Slac Systems with Direct Trunk Attendant Consoles DtacCall Coverage Administration Requirements Manual Release Automatic ReleaseInteractions Attendant Return Coverage on Busy Administration Requirements Attendant Return Coverage on DON’T Answer Administration Requirements Attendant Source and Destination V2 Slac Only Attendant Splitting ONE-WAY Automatic Systems Technician Automatic Intercom Administration Requirements Automatic Route Selection ARS ARS Flow Chart ARS Routing Pattern Table FRLAutomatic Route Selection Flow Chart Sheet l Automatic Route Selection Flow Chart Sheet 2 0f Considerations ARS Hardware Requirements Automatic Route Selection Routing Pattern BUSY-TO-IDLE Reminder Call Accountability Call Accounting Page Facility Code #190-#199 is identified in this field Call Accounting System CAS CAS Model CAS Models 200, 300, 500,Page AT&T Call Accounting Systems CAS Model Stations Account CodesDate Time DUR FAC STN Account PDCAscii Character Description Valid Position Characters Column NumberAscii Character Description Position 12. Smdr Call Record Header FormatZ21OA Adapt 15. Smdr Output Equipment -On-Premises Switched Connections 16. Smdr Output Equipment-Off-Premises Direct Connections 17. Smdr Output Equipment-Off-Premises Switched Connections Standard Group Coverage DGC Group Coverage V2 only Page Administration Requirements Standard Group Coverage Interactions DGC Group Coverage V2 OnlyAdministration Requirements DGC Group Coverage V2 Only Sent to coverageCall COVERAGE-INDIVIDUAL Call Coverage -Group Unanswered Call Following Forwarding Interactions Call Park Considerations Attendant Selector Console Assign Call Park buttons Directed Call Pickup Group Call PickupAdministration Requirements Call Progress Tones Facility Access Restriction Outward RestrictionToll Restriction ARS Restriction Hardware Requirements Data call or place Data call Voice call V2 onlyOptions Current Default OptionsEXit Change options View options HangupPartial List of Permissible Data Port TN726 Options Option DefinitionHost Modem Computer Users 18. Communications Access Manager Architecture Page Multiline Voice Terminals Single-Line Voice Terminals101 Extended Stations An 102Switched Loop Attendant Consoles Multiline Voice Terminals except SlacAll Multiline Terminals 103104 Data Call Setup Data Endpoints DTE Devices106 Data Terminal Without Ascii Keyboard Ascii Data Terminal With Keyboard107 Host Computer Endpoint Analog Data EndpointDCE Devices 108Data Endpoint States Data Call Processing ModesConnecting Configurations Controlling Features111 Dialed Characters Dialing CorrectionPause 112End-to-End Signaling Call DispositionAnswering Endpoint 113114 Interactions End-To-End Signaling See above text 115Dial Code Assignments 116Voice Terminal Directed Features PDC to Voice Terminal AssociationData Dial Codes DDCs Direct Inward Dial did Number Assignments118 20. Dictation System Connections FCC Registered 11921. Digital Tape Unit 120121 122 123 Transfer For 124125 23. Delay Announcement Equipment Connections FCC Registered 126127 128 129 Access to Paging Zones and DGC Groups 130131 132 133 134 Activating Expert Mode Making a Data Call135 Activating the Third-Party Call Setup Feature DialUser Changeable Options ExamplesCommand PE Command MYInteractions Command Mode 137Conference 138139 24. External Alert Connections 14025. Supplemental Alert Adapter Connections 141Calls Eligible for Hands-Free Service BIS and Hfai Voice Terminals142 Voice Terminals with HFUs Voice Terminals without HFUs143 144 500A/502A Headset Adapters 145MET Headset Adapter 146147 148 149 150 151 152 153 154 Prime Line Preference Ringing Line Preference155 Preselection 156L-USE Indications LED IndicationsUse Line Status Meaning Red LED Green LED 157158 159 Console Configurations Message CENTER-LIKE Operation V2 Slac OnlyMessage Center Call Types 160161 Attendant Message Waiting Call Coverage Message Waiting162 Station-To-Station Message Waiting 163164 Calling Restrictions 165166 167 30. Music-On-Hold Equipment Connections FCC Registered 16831. Music-On-Hold Equipment Connections Non-Registered 169Directed NS 170Trunk-Answer-from-Any-Station 171172 AT&T 17332. Delay Announcement Equipment Connections FCC Registered 174175 176 177 178 179 180 Calls Placed to a PDC 181Calls Placed to a Floating PDC 182Direct Station Selection 183184 185 186 Facility 187188 189 190 35 B Emergency Transfer Unit ETU 36. Emergency Transfer Unit Connections 19237. Multiple ETU Arrangements 193Special Characters Char Used in Repertory Dialing NumbersCHAR. Used in Personal Speed Dialing Numbers 194Char Used in Personal Speed Dialing Numbers Transmits an actual195 To Program a Number by Using a Code To Program a Number by Using the Switch196 197 198 199 200 201 202 203 204 205 Speaker 4A Speakerphone System S101A/S102A Speakerphone PEC 3163-HFU207 38. Speakerphone Adjuncts 209 S102A210 41. Speakerphone Connections For 12-Button MET Sets 211System Speed Dialing CHAR.FUNCTIONChar Function 212Personal Speed Dialing 213214 System 25 Starlan Network Access Access Access215 Communications Access Manager CAM Starlan Interface Circuit Pack216 Starlan Network View of System System 25 View of a Starlan NetworkCalls from System 25 to the Starlan Network 217Wiring 218219 ZTN78220 Administrable Parameters Individually Administrable defaultCommon Administration default ATL AdaptersLinear Hunting Example Circular Hunting ExampleCombinational Hunting Example 222Call Coverage Station 223224 Centralized Administration 225226 Backspace Return SAT Connection Information227 45. Model 703 System Administration Terminal 228229 230 TYPICAL-103A Connection Block48. SAT On-Premises Switched Connections 23149. SAT Off-Premises Direct Connections 23250. SAT Off-Premises Switched Connections 233System Maintenance System Errors And AlarmsPermanent System Alarms Error sError Logs Automatic Maintenance Tests235 Tandem Trunking S c r i p t i o nTrunk Number C o n d A t i o n 236237 Test N s i d e r a t i o nsT e r a c t i o ns 238THIRD-PARTY Call Setup Voice Terminal sourceData Terminal source 239Setting Up a Third-Party Call 240Expert Mode Administration Requirements Data PortAT&T Starlan Network Access T e r a c t i o ns Call CoverageTIE Trunks 242243 TOUCH-TONE and Dial Pulse Services Touch-Tone Dial PadsTouch Dial Pads 244T e r a c t i o n s 245246 Data Call Origination Using Transfer to Data Transfer to DataData Call Preindication 247248 Trunk Groups 249N s i d e r a t i o n s C i l i t yS t r i c t i o n s e e Calling Restrictions 250251 TRUNK-TO-TRUNK Transfer 252User Changeable Options User Changeable Options Definition253 51. Command Mode Menu Tree Viewing Options Changing Options-General255 Changing Data Port Speed EXit Low256 Interactions Expert Mode 257Virtual Facilities 258A R a C T E RF U N C T I O N Examples of Virtual Facility Numbers259 Accessing a Virtual Facility Example260 261 TDM ATLMET List of Tables Digital Switch System 25 Digital SwitchCommon Control Call Processor Circuit Pack ZTN82 or ZTN128Call Processor ZTN82 or ZTN128 Circuitry Interrupt Level Memory Circuit Pack ZTN81 or ZTN127 Timing and Control Logic CircuitSwitching Network TDM Bus Time Slot Generation Not a Timing DiagramPhysical Characteristics Electrical CharacteristicsTime Slot No Function TDM Bus Diagram -Three Cabinet System Port Circuits SINGLE-LINE Voice Terminals SMD Asynchronous Data Unit CAS Call Accounting System Translated, and yellow circuit busy Port Circuit Pack Common Circuitry Ground Start Trunk ZTN76 Unique Ground Start Trunk ZTN76 Circuitry Loop Start Trunk ZTN77 Unique Loop Start Trunk ZTN77 Circuitry 10. Unique Tip Ring Line ZTN78 Circuitry Page ATL Line ZTN79 Port Circuits11. Unique ATL Line ZTN79 Circuitry Data Line TN726 12. Unique Data Line TN726 Circuitry MET Line TN735 13. Unique MET Line TN735 Circuitry Analog Line TN742 14. Unique Analog Line TN742 CircuitryPage Did Trunk TN753 15. Unique did Trunk TN753 Circuitry Tie Trunk TN760B 16. Unique Tie Trunk TN760B Circuitry Signaling Type Summary Signaling Transmit Receive Type ON-HOOK OFF-HOOKTN760B Tie Trunk Preferred Signaling Formats Auxiliary Trunk TN763 18. Unique Auxiliary Trunk TN763 Circuitry Starlan Interface ZTN84 NetworkService Circuit ZTN85 System ResourcesSaki On-BoardPage 19. Service Circuit ZTN85 Tone Detector TN748 20. Tone Detector TN748 Circuit Capability Data Module Mode Pooled Modem TN758Page Switched Services Software Administrative SoftwareMaintenance Software Memory AllocationSoftware Partitioning Memory Circuit PackCall Processor Circuit Pack Port Circuit Packs Step-By-Step Call Description22. System Software Partitioning On the terminal List HfaiADU SIPMadu Hardware Description System Cabinets J58901A1System 25 Cabinets J58901A-Three Cabinet System System Cabinet J58901A-Rear View Cabinet 1 Control and Port Circuits Cabinet Address PlugCabinets 2 and 3 Port Circuits System Circuit Pack Configurations Total Port Circuit Packs Per System Circuit Packs Required Circuit PacksOptional Circuit Packs System Resource Circuit PacksStation Port Circuit Packs Trunk Port Circuit Packs Circuit Pack CompatibilityCircuit Pack Features System Circuit Packs Title Circuit Number Circuit Pack Type PortsVoice Terminals Single-Line Voice TerminalsModel 500 Series PFTSummary of Voice Terminals Terminal Circuit Pack Type Model Description Interface554BMPA ZTN79Model 2500 Series Mode1 2500 Series Analog Voice TerminalsModel 7101A MD PEC 3170-00M Mode1 7101A Analog Voice TerminalSpeakerphone Speakerphone Voice Terminal Feature Operations Single-Line Voice Terminal Connection InformationMultiline Voice Terminals 7300H Series Voice TerminalsButton Voice Terminal 7302H01D PEC Button Voice Terminal 7302 HOlD Button Voice Terminal 7303H01D PEC Button Voice Terminal 7303HO1D Button Voice Terminal 7305H01D MD PEC Button Voice Terminal 7305HO1D MD Button Deluxe Voice Terminal 7305H02D PEC For General UseFor Use as a Direct Trunk Attendant Console 10 -Button Deluxe Voice Terminal 7305H02D Hfai 11. BIS Voice Terminal 7305H03B Feature Buttons only 12 have associated LEDs For Use as a Switched Loop Attendant Console 12. BIS Voice Terminal with Display 7305H04BPage 13. Hfai Voice Terminal 7309HO1B Ten Button Multibutton Electronic Telephone MET 2991 C/D05 14. Ten Button MET Set 2991C05 Ten Button MET With Built-In Speakerphone 2993C04 15. Ten Button MET With Built-In Speakerphone 2993C04 Twelve Button MET Set 7203M 16. Twelve Button MET Set 7203M Multiline Voice Terminal Connection Information Voice Terminal AdjunctsVoice Terminal Adjunct Power Supplies Supplemental Voice Terminal Power SuppliesVoice Terminal Adjunct Connection Information Unit Output For USE withAsynchronous Data Units AD US 17. Asynchronous Data Unit ADU ADU Connection Information Unit PEC Feature Asynchronous Data UnitsZ3A1 Optional Power Equipment Uninterruptible Power SupplyAC Power Line Surge Suppressor 346 Modular Bulk Power SupplyTrunk Access Equipment TAE 18. Trunk Access Equipment TAE Connections Station Interconnect Panel SIP 617A PanelAdapters 19 a Station Interconnect Panel 20. Typical SIP Connections Connectivity Figures 21. On-Premises Single-Line Voice Terminal Connections 22. Out-Of-Building Single-Line Voice Terminal Connections SINGLE-ENDED 25 Pair Cable A25D 7300H Type Voice Terminal Ground Wire 26. Ten Button MET Set Connections TYPICAL- 103A Connecting Block ZTN78 TIP Ring Line CP 103A Connecting Block 30. Typical Madu Connections 31. Z3A1/2/4 ADU Local Power Connections Technical Specifications Hardware And Software Parameters TotalHardware And Software Parameters Contd Traffic Data Simultaneous Unit Loads Unit Loads NoteEquipment Circuit Unit Load Pack PER Port ZTN79 BISSupporting Gauge Wire Circuit Cable Distance LimitationsPack Feet Meters ZTN78 5106mm Pack Feet MetersData Rate Gauge Wire Data Terminals RS-232 Connected To Asynchronous Data UnitsFeet Meters Indicator Lamp Signals Lamp SignalTones Tone FrequencyStation Type Circuit Pack Data Terminal Specifications Data Terminal Ports NoteData Terminals Data Requires Z3A1 TerminalZ3A4 ADU Dtmf RENPort Specifications Contd Voice Terminal Ports Contd Station Type Circuit Pack SpecificationsTrunk Ports Trunk Type Circuit Pack Specifications Ground Start Recommended Central Office Trunk Facilities Calling TrafficVoice Light Medium Heavy Terminals Traffic Analog Transmission Characteristics Signal Level Distortion LevelLoss Connection Type LossLoop Resistance Connection Bandwidth 64 Kbits Steady State Noise LevelImpulse Noise Single Frequency Return Loss Talking StateEnvironmental Requirements Floor Plans And LayoutsTypical System 25 Equipment Area Floor Plan Typical System 25 Equipment Area Elevation Plan Temperature and Humidity Wall Space RequirementsAir Purity LightingElectrical Noise RFI AC Power Requirements Single Cabinet SystemAC Power Distribution Multiple Cabinet System Grounding Lightning ProtectionParts Listed by PEC PartMerlin VT Part of 62512 62512 62512Apparatus Code Comcode ZTN76 Z3A5 ATL ADUMOH 10B ETUZ3A4 ADU PEC Description Apparatus Code CAMStarlan Network NEUPEC Description Apparatus Code Comcode 500BMPAS C R I P T I O N Merlin Hfai VTMerlin BIS VT IrobPEC CPU/MEMParts Listed by Comcode Comcode PEC DescriptionM C O DE PEC Description Apparatus Code M C O DE P E C Description Apparatus Code Merlin BISMerlin Hfai 105341382 1020-S91 Comcode PEC Description Apparatus Code AT&T Starlan NetworkBasic Manuals Supplementary MaterialDescriptions of Basic Manuals Planning Manual Reference ManualTerminal Operations Manual User Guides 700 SeriesAdminister Analog Voice TerminalsAppearance Asynchronous Data TransmissionAuxiliary Equipment Auxiliary TrunkBit Binary Digit Bridge BridgingClass of Service COS Common Control Switching Arrangement CcsaBus, Time Division Multiplex CCS Hundred Call SecondsConsole Coverage CallCoverage Path Coverage PointDelay-Dial Tie Trunk Data ModuleData Terminal Equipment DTE Digital Data EndpointsFeature Feature ButtonFacility physical Foreign Exchange FXHome Numbering Plan Area Code Hnpa Immediate-Start Tie TrunkIn-Use Lamp Intercept ToneMultifeature Single-Line Voice Terminal Modem PoolingMultilane Voice Terminal MultiplexedParameter Peripheral EquipmentPersonal Dial Code Pickup GroupRandom Access Memory RAM ProtocolPublic Network QueueSwitch SwitchhookSoftware SplitWide Area Telecommunications Service Wats Tie TrunkTime Division Multiplex Bus Tone RingerService Write OperationIndex 10-110-2 10-3 Line Contd10-4 Starlan Network