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Vodavi Infinite 4096 Key Telephone System Installation And Maintenance Manual

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    							LIST OF FIGURES 
    SECTION 100 
    SECTION 200 
    SECTION 300 
    SECTION 400 
    SECTION 500 
    SECTION 600 
    SECTION 700 
    SECTION 710 
    SECTION 720 
    SECTION 730 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . loo-1 
    GENERAL DESCRIPTION ..................... zoo-1 
    Flgure2QO-1 &@ni&4096SystanBlockDiagram ......... ..2-00- 2 
    Figure 200-2 b@&eStatton Instruments ................. .2QO-6 
    FEATURE DESCRJPTION ..................... 30~1 
    Figure300-1 &@&e4096DefauitMapping ............. .3UO-11 
    FEATURE OPERATION ....................... 400-1 
    Figure 400-l m Executive Key Telephone ............. .4OO-2 
    INSTALLATION ............................... ~~00-1 
    Figure 500-l Mounting Arrangements .................... .500-2 
    Figure 500-2 Mounting Dimensions ...................... .500-3 
    Figure500-3BasicKSUandExpanslonKSU .............. ..5ClO- 4 
    Figure 5004 Esrt. Power Supply Housing & Power Supply ..... .500-6 
    Figure 500-5Tone 
    RnttteronBCCard .................... .500-7 
    Figure 
    500-6 Apical Battery Interconnectton Layout ......... .5OO-8 
    Figure 500-7 DC/DC Converter Unit (DC/DC) .............. .500-g 
    Figure 500-8 Central Processing Board (CPB) .............. .5OO-10 
    Figure500-9CentralOf&eInterf&ceBoard(COB) .......... .500-12 
    Figure 500-10 Ampwed CO Interface Board (COA) .......... .5OO- 
    14 
    Figure500-11 KeyStationInterfaceBoard(KlB) ............ .500-15 
    Figure 500-12 Powq FailureTransfer Circuit (PFT) .......... .5OO-18 
    Figure 500-13 Station Modular Block Wiring .............. .500-20 
    Figure 500-14 Key Telephone 
    Wall Mounting .............. .500-22 
    Figure 500-15 Application Board (APL) ................... .5QO-24 
    Figure 500-16 Applk!aUon Board Connections ............. .500-25 
    Figure 500- 17 Application Board Modular Connections ....... NO-26 
    Figure 500-18 CO and SLT RAN Connections .............. .5OO-27 
    Figure 500-19 RSM Baud Rate Selection. ................. .500-29 
    Figure 500-20 I?%m2c connecttons 
    .................... .%I&30 
    Figure 500-21 Installing the Expansion KSU .............. .5OO-33 
    SYSTEM CHECKOUT ......................... coo-1 
    CUSTOMER DATA aASE PROG-G . . . . 
    700-1 
    Ffgure 700-l Data Terminal Program Codes Cross Reference . . . .700-2 
    Figure 700-2 &jZnite 4096 Default Button Mapping . . . . . . . . . .700-3 
    SYSTEM PARAMET ERS PROGRAMMING.. . . . 710-1 
    CO LINE ATTRIBUTES PROG-G . . . . . . 720-1 
    STATION ATTRIBUTES PROGRAMMING . . . . . 
    730-1 
    Figure 730-l DSS Console Maps 1-3 Button Assignment . . . . . . .730-6 
    x Jssue 1. January 1992  
    						
    							INFINlTE 4096 Hybrid Key Telephone System LIST OF FIGURES 
    SECTXON 740 
    SECTION 745 
    SECTION 750 
    SECTION 755 
    SECTION 760 
    SECTION 765 
    SECTION 800 
    APPENDIX A 
    APPENDIX B 
    APPENDIX C UNIFORM CALL DISTRXBUTION ............. .740-l 
    VOICE lldAIL GROUPS (VM) ................... .745-1 
    EXCEPTION TABLES PROGIiAMMING ....... .760-l 
    LEAST COST ROUTING 
    PROGIUSMMING ..... .ms-1 
    INITXALIZING DATA RASE PARAMETERS .... 
    .760-l 
    PRINTING DATA BASE PARAMETERS ....... .76&l 
    Figure 765-l DB Prfntout ofSystem Parameters ............. 765-3 
    Flgure765-2DBPrintoutofCOLineAtt.rlbutes.. ............ 765-6 
    Figure 765-3 DB Printout of Station Attributes .............. 765-8 
    Figure 765-4 DB Printout of ExcepUonTables .............. 765-10 
    Figure 765-5 DB Printout of System Speed Numbers ......... 765-12 
    Figure 765-6 DB Printout of LCR Default .................. 76514 
    AtWINTENANCE AND TROUBLESHOOTING ... .800-l 
    Figure 800-l Remote Maintenance 
    Help Menu ............... 800-7 
    Figure 800-2 &jinite 4096 Configuration wlth/LCR .......... 800-8 
    Figure 800-3 CO Line ConfIguration Printout ................ 800-9 
    Figure 800-4 Station Configuration Printout ............... 800-10 
    Figure 800-5 APL Configuration Printout .................. 800-l 1 
    Figure 800-6 Event Trace as it appears on Display ........... 800-14 
    zNFY.MTE 4096 PROG RAMMING FORMS ...... A-l 
    IlVF- 4096 COMPONENT LIST ............ B-I 
    AEC The MessengerTM 212 Plus 
    ............... Cl 
    Figure C-l SLTtoAEC Connections ........................ C-2 
    FigureC-2 ACT8Cond.to6Cond.RANUneCord ............. C-3 
    Figure C-3 COB to AEC Connecttons ........................ C-4 
    Issue 1, January 1992 xi  
    						
    							UST OF TAB- lNF= 4096 Hybrid Key Telephone System 
    LIST OF TABLES 
    SECTION 100 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . loo- I 
    SECTION 200 GENERAL DESCRIPTION ..................... 
    200-1 
    Table 200-l System Capacity ........................... .200-8 
    Table 200-2 Environmental Spsons ................. .200-g 
    Table200-3LoopIfmlt-s .............................. ..2QO- 9 
    Table 200-4 Dialing [email protected] ....................... .200-g 
    Table 200-5 Electrical Specifications .  ..................... .200-10 
    Table 200-6 Regulatory Numbers ........................ 200-10 
    Table2UO-7DimensionsandWeight.. ................... .200-11 
    Table 200-8 Miscellaneous Specifications ................. .200-l 1 
    Table 200-g KeyTelephone Audible Signals ............... .200-12 
    Table 200- 10 DSS/BLF Button Visual Indicators ........... .200- 13 
    Table 200- 11 CO Line Button Visual Indicators ............ .200- 13 
    Table 200-12 Function Button Visual Indicators ............ .200-14 
    Table 200- 13 Single Line Telephone Audible Signals ......... .200- 15 
    Table 200- 14 Ring Gen./Message Wait (RG) Specifications .... .200- 15 
    Table 200-15 OPXTelephone Audlble Signals .............. .200-16 
    Table 200-16 Mean Time Between Failures (MTBF) .......... .200-17 
    SECTION 300 FEATURE DESCRIPTION ..................... 300-1 
    Table 300-l Alphabetical Feature Index ................... .300-2 
    SECTION 400 
    SECTION 500 FEATURE OPERATION ....................... 400-1 
    Table 400-l wte 4096 System Numbering Plan .......... .400-3 
    Table400-2FLEXButtonProgrammingCodes ............. .400-11 
    Table 410-l Ii&ire 4096 LCD Displays .................. .410-l 
    INSTALLATION ............................... 500- 1 
    Table 500-l Pl C-cmnecting Block ...................... -500-13 
    Table 500-2 P2 Cmnecting Block ...................... .500-13 
    Table 500-3 
    Station Connecting Block 
    (KIB) ............... .500-16 
    Table 5004 Station Connecting Block (KIB/OHV) .......... .500-16 
    Table 500-5 
    Station Connecting Block (SL?) ............... .500-17 
    Table 500-6 Pwr Failure Transfer Unit Connections (Pm .... .500-17 
    Table 500-7 OPX Station Connecting Block (OPXl .......... .%0-21 
    Table 500-8 SMDR Printout ........................... .500-32 
    SECTION 600 SYSTEM CHECKOUT . . . . . . . . . . . . . . . . . . . . . . . . . 600-l 
    SECTION 700 CUSTOMER DATA BASE PROGRAMMING.. . . 700-1 
    Table 700-l Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .700-4 
    SECTION 710 SYSTEM PARAMET ERS PROGRAMMING.. . . . 710-l 
    Table 710-l Hook Switch Activity . . . . . . . . . . . . . . , . . . . . . . . .710-17 
    SECX’ION 720 CO LINE ATTRIBUTES PROGRAMMING . . . . . . 720-l 
    Table 720-l Class of Service (COS) . . . . . . . . . . . . . . . . . . . . . . . .720-5 
    SECTION 730 STATION ATTRIBUTES PROGRAMMING . . . . . 730-l 
    Table 730- 1 Flexible Button Display Designations . . . . . . . . . . .730- 12 
    xii Issue 1. January 1992  
    						
    							SECTION 740 
    SECTXON 745 
    SECTION 750 
    SECTION 755 
    SECTION 760 
    SECTION 765 
    SECZION 800 
    APPENDIX A 
    APPENDIX B 
    bsue1.January1992 
    UNIFORM CALL DISTRIBUTION ............. ,740-l 
    VOICE MAIL GROUPS (V&I) ................... .74s-1 
    EXCEFX’ION TABLES PROGRAMMING ....... .mo-1 
    Table 750-l Class of Service (COS) 
    ........................ 750-l 
    Table 750-2 Allow/Deny Toll Table 
    ........................ 750-2 
    LEAST COST ROUTING PROGRAMMING 
    ..... .ms-1 
    Table 755-l LCRClass ofServiceTahle 
    .................... 755-6 
    Table 755-2 Daily Start TYme & Weekly Schedule Tables ....... 755-9 
    Table 755-3 Exampks: Daily & Wkly Start Tlme Tables ....... 755- 10 
    INITIALIZING DATA BASE PARAMETERS .... .760-l 
    PRINTING DATA BASE PARAMETERS ....... .7651 
    AUINTENANCE AND TROUBLESHOOTING ... .800-l 
    Table 800-l Central Processing Board (CPB) 
    ................ 800- 1 
    Table 800-2 DC/DC Converter Unit (DC/DC) ................ 800-2 
    Table 800-3 Battery Chargtng Board IBC) ................... 800-2 
    Table 800-4 Key Station Interface Board (KIB) ............... 800-3 
    Table 800-5 Key Station Interface Board w/OHVA (KIB/OHVj ... 800-3 
    Table 800-6 Central Office Interface Board (COB) ............. 800-3 
    Table 800-7 Single Line Interface Board (SIB) 
    ................ 800-4 
    Table 800-8 SLT Ring Generator (RG) and 
    M/W Power Supply ... 800-4 
    Table 800-9 Application Board (APL) 
    ...................... 800-4 
    Table 800-10 Single Line Receiver/Sender Unit (SLU) ......... 800-5 
    Table 800- 11 RS-232C Module (RSM) 
    ..................... 800-5 
    Table 800- 12 Power Failure Transfer Unit (PFIJ .............. 800-5 
    Table 800- 13 Amplified Conference Board (COA) ............. 800-6 
    Table 800- 14 Off-Premise Extension Board (OPXI ............ 800-6 
    RVF.- 4096 PROGRAMMIN 
    GFORMS ...... A-l 
    Appendix A- 1 System Parameters 
    ........................... A- 1 
    Appendix A-2 UCD and Hunt Group Parameters ............... A-3 
    Appendix A-3 Voice Mail Group Parameters 
    ................... A-4 
    Appendix A4 CO Line Pr ogramming(Flash40) .............. ..A- 5 
    Appendix A-5 CO Line Ringing Assignment Chart .............. A-7 
    Appendix A-6 Station Pro 
    @xmm&q(Flash 50) ................. A-8 
    Appendix A-7 Flexible Station Buttons ....................... A-9 
    AppendkA-8SystemSpeedDialNumbers 
    ................. .A-11 
    Appendix A-9 Exception Tables (J?lash 60) ................... A- 13 
    AppendixA-10LeastCostRmking@%sh61). ............... .A-15 
    Appendix A-l 1 Route List Table ........................... A-16 
    Appendix A- 12 Insert/Delete Tables 
    ........................ A-20 
    Appendix A- 13 3-Digit Area/Of&e Code Route List Table ....... A-22 
    Appendix A-14 6-Digit Office Code Table .................... A-23 
    Appendix A- 15 LCR Exception Code Table 
    ................... A-24 
    AlFlA?ITE 4096 COMPONENT LIST ............ ~-1 
    Appendix El &finite 4096 Component List .................. El  
    						
    							LsIST OF TABIE-6 
    rmFrrmTE 4096 Hybrid Key Telephone System 
    APPENDIX C AEC The MessengerTM 212 Plus 
    . . . . . . . . . . . . . . . Cl 
    xiv Issue 1, January 1992  
    						
    							~~WRV~TE 4096 Hybrid Key Telephone System INFINITE 4096 ISSUE CONTROL SHEET 
    INFINITE 4-096 ISSUE CONTROL SHEET 
    ‘1 l”““Lj uc11J2 bA LN.UcI 
    1 JANUAKY 1992 First Release of Infinite 4096 General Description, Installation ant 
    i 
    Maintenance Manual. 
    I 
    l 
    Issue 1, January 1992 xv  
    						
    							Inmite 4096 Hybrid Key Telephone System 
    INTRODUCTION 
    SECTION100 
    INTRODUCTION 
    100.1 PURPOSE 
    This manual provides the information neces- 
    say to program, install, operate and maintain 
    the I- 4096 Hybrid 
    Key Telephone System. 
    100.2 REGULATORY INFORMATION 
    The Federal Communications Commission 
    IFCC) has established rules which allow the 
    direct connectton of the Ir3finfte 40% Key Tele- 
    phone System to the telephone network Gzr- 
    tain actions must be undertaken or 
    understood before the connection of customer 
    provided equipment is completed. 
    A Telephone Company NoMication 
    Before connecung the I@ni& 4096 Hybrid 
    Key Telephone System to the telephone 
    network, the local serving telephone com- 
    pany must be given advance notice of in- 
    tention to use customer provided 
    equipment and provided with the following 
    information: 
    The telephone numbers to be connected 
    to the system. 
    The FCC ReglstraUon Number located 
    on the Key Service Unit mu): 
    DLP82V- 17568-MF-E 
    If no Key Telephones are programmed to 
    have a pooled group button. use the 
    following FCC 
    RegistraUon Number 
    DLF%2V- 
    17567~KF-E 
    The Ringer Equivalence Number also 
    located on the KSU: 0.5B 
    The Universal System Ordering Code 
    IIJSOC) jack required for direct titercon- 
    nection with the telephone network: 
    FLJ2lX 
    B. lnddcncc of Harm 
    If the telephone company detexmines that 
    the customer provided equipment is faulty 
    and possibly causing harm or interruption 
    to the telephone network, it should be 
    disconnected until repairs can be made. If 
    this is not done, the telephone company 
    may temporarily disconnect service. C. 
    D. 
    E. 
    changes ln service 
    The local telephone company may make 
    changes fn its communications facilities or 
    procedures. Ifthese changes should affect 
    the use of the 1r@f& 4096 or compatibility 
    with the network. the telephone company 
    must give wrltten notice to the user to 
    allow uninterrupted Service. 
    h¶alntenana umltations 
    Maintenance on the 4096 Hybrid KeyTele- 
    phone System is to be performed only by 
    the manufacturer or its authorized agent. 
    The user may not make any changes 
    and/or repairs except as specifically noted 
    in t.h& manual. If unauthorized altera- 
    tions or repairs are made. any remaining 
    warranty may be voided. 
    Notice of CompIiance 
    The 4096 Hybrid Key Telephone System 
    complies with rules regarding radiation 
    and radio frtquency emissions by Class A 
    computing devices. In accordance with 
    FCC Standard 15 (Subpart J). the follow- 
    ing tiormatton must be supplied to the 
    end user: 
    “This equipment generates and uses 
    RF energy and if not installed and 
    used in accordance with the Instnx- 
    Uon Manual. may cause interference 
    to Radio Communications. It has 
    been tested and found to comply with 
    the limits for a Class A computing 
    device. pursuant to Subpart J of part 
    15 of the FCC Rules, which are de- 
    signed to provide reasonable protec- 
    tion against such interference, when 
    operated in a commercial environ- 
    ment. Operation of this equipment in 
    a residential area is likely to cause 
    interference, in which case the user. 
    at his own expense, will be required to 
    take whatever measures may be re- 
    quired to correct the interference.’ 
    Issue I. January 1992 
    100-l  
    						
    							F. 
    G. 
    The HearingAid Compatibility 
    All In&&e 4096 Key Telephones are Hear- 
    lng Aid Compatible. as defined in Section 
    68.3 16 of Part 68 FCC Rules and Regula- 
    UOXlS 
    OPX CYrcuit 
    I@nfte 4096 Key Telephone System may 
    be equipped with single line OPX boards which 
    provide four (4) 48 volt FCC registered 2500- 
    type single line interface ports. 
    l Each OPX port when used to support an 
    off-premise extension requires an 
    OL 13C network circuit. 
    l An FCC registered interface such as a 
    W2 1X is also required to connect to the 
    public network. 
    100.3 
    RECUUTORY INFORMATION CA- 
    HADIAN) 
    Depariment of Communications (DOC) 
    Won Number: 676 2799A 
    Load Number: 19 
    Standard Connector: CA21A 
    Can- Standards Association (CSAI 
    File Number: LR!57228 
    A. Notice 
    The Canadian Department of Communi- 
    cations’ label identifies certified equip- 
    ment. Thfs certification means that the 
    equipment meets certain telecommunica- 
    tions network protective. operational and 
    safety requirements. This Department 
    does not guarantee the equipment will 
    operate to the user’s satisfaction. 
    Before installing this equipment, users 
    should ensure that It is permissible to be 
    connected to the factlitles of the local tele- 
    communlcaUons company. The equip- 
    ment must also be installed using an 
    acceptable method of connection. In some 
    cases, the company’s inside wiring asso& 
    ated with single line individual service may 
    be extended by means of a certified con- 
    nector assembly (telephone extension 
    cord). The customer should be aware that 
    compliance with the above condition may 
    not prevent degradation of service in mrne 
    situations. 
    Repairs to cerUfled equipment should be 
    made by an 
    authorized Canadian matnte- 
    nance facility designated 
    by the supplier. 
    Any repairs 
    or alterations made by the 
    user to this equipment. or equipment mai- 
    functtons. may give the telecommunica- 
    tions company cause to request the user 
    to disconnect the equipment. 
    Users should ensure for their own protec- 
    tion that the electrical ground connections 
    of the power utility. telephone lines and 
    fnternd metallic water pipe system, if pre- 
    Senk are connected together. This pre- 
    caution may be particularly important in 
    rural areas. 
    I-4 
    Users should not attempt to make 
    such 
    connections themselves, but 
    should contact the appropriate elec- 
    tric inspection authority. or electri- 
    dan, as appropriate. 
    B. ErpladdonofLoadNumber 
    The 
    Load Number (LN) assigned to each 
    terminal device denotes the percentage of 
    the total load to be connected to a tele- 
    phone loop which is used by the device to 
    prevent overloading. The termination on 
    a loop may consist of any combination of 
    devices subject only to the requirement 
    that the total of the load numbers of all the 
    devices does not exceed 100. 
    C. 
    MaiJltenallcc L4.mitationB 
    Maintenance on the In&&e 4096 Hybrid 
    Key Telephone System is to be performed 
    only by the manufacturer or its authorized 
    agent. The user may not make any 
    changes and/or repairs except as sped- 
    tally noted in this manual. If unauthor- 
    ized alterations or repairs are made, any 
    remalnlng warranty may be voided. 
    D. Notice of Compliance 
    The In&&e 4096 Hybrid Key Telephone 
    System complies with Class A or Class B 
    limits of the Canadian Radio Interference 
    Regulations. In accordance with FCC 
    Standard 15 (Subpart J). the following 
    information must be supplied to the end 
    user: 
    loo-2 Issue 1, January 1992  
    						
    							Infinite 4096 Hybrid Key Telephone System 
    INTRODUCTION 
    YlXis equipment generates and uses 
    RF energy and if not installed and 
    used in accordance with the Ins&~- 
    tion Manual+ may cause interfennce 
    to Ftadio comml.mlcauons. It has 
    been tested and found to comply with 
    the limits for 
    a Class A or Class B 
    computing device, pursuant to Sub- 
    part 
    J or Part 15 of the FCC Rules, 
    whfch are designed to provide 
    rcason- 
    able protection against such interfer- 
    ence. when operated in a commercial 
    environment. Operation of this 
    equipment in a residential area is 
    likely to cause interference, in which 
    case the user, at his own expense. will 
    be required to take whatever meas- 
    ures may be required to correct the 
    interference. * 
    E. OPX Circuit 
    The Zrzfznite 4096 Key Telephone Systems 
    may be equipped w-ith single line 
    OPX 
    boards which provide four (41 48 volt reg- 
    istered 2500-type single line interface 
    PO-. 
    l A DOC nglstered interface such as a 
    CA2 1A is also required to connect to the 
    public network. 
    loo.4 uL/csA SAFETY COMP~CE 
    The Irsfznite 4096 Hybrid Key Telephone System 
    has met all safety requirements and was found 
    be in compliance with the United Laboratories 
    KJL) 1459 Second Edition and Canadian 
    Standards Assodatlon (CXiAj CS-03 Standard. 
    The k#nife 4096 is authorized to bear the UL 
    and CSA marks. 
    Issue 1, January 1992 
    loo-3  
    						
    							Infinite 4096 Hybrid Key Telephone System 
    GENERAL DESCRIPTION 
    SECTION200 
    GENERALDESCRIPTION 
    200.1 SYSTEM TEcHN0LoGY 
    The In&f& 4096 Hybrid Key Telephone System 
    is an expandable modular system engineered 
    for growth through modular card IPCB) expan- 
    sion as well as KSU module expansion and 
    provides a flexible assortment of features 
    through software options and optional circuit 
    cards. F&p-e 200-l is a block diagram of the 
    System. 
    The Zn$nf& 4096 Hybrid Key Telephone System 
    is the upper end of a family of Electronic Key 
    Telephone Systems designed to meet the needs 
    of telephone users from small to large. The 
    other members of this family are the In&f& 
    816 and 1224. 
    The In&&e 4096 Hybrid Key Telephone System 
    is a modular system designed for growth using 
    state of the art Di&al Technology for switching 
    control. co mmand processing and also utilizes 
    a CMOS based microprocessor controlled cross 
    point switching matrix, and provides a fl&ble 
    assorunent of features. 
    This family of systems Is englneered ‘to allow 
    the same telephones to migrate through the 
    complete product line. 
    This system has a capacity of up to 40 outside 
    lines. 96 internal telephone stations. and 14 
    intercom channels. The system architecture 
    allows for non-blocking access to all 40 CO 
    lines. The KSU is designed as two cabinets. 
    The Basic cabinet will support 24 outside lines 
    and 48 internal stattons. The Expansion cabi- 
    net will support an additional 16 outside lines 
    and 48 internal statlons. Standard single-line 
    (2500 type) telephones can be installed in the 
    system by exchanging key telephone boards for 
    single-Une boards. 
    200.2 COMMON EQUIPMENT 
    The following components are necessary to 
    operate the @?nf& 4096 Hybrid Key Telephone 
    System: (Refer to Appendix B for a complete 
    4096 component list with Part #‘s) 
    0 
    Basic KSU 
    0 
    Central Processor Board (CPB) with ge- 
    neric software 
    l DC/DC Converter (DC/DC) 
    l Key Station Interface Board (KIB) 
    e 
    l 
    l 
    0 
    l 
    A 
    B. 
    C. Central Ofiice Interface Board (COB) 
    Power supply Es) 
    External Power Housing (EPS) 
    Enhanced Key Telephone or 
    Executive Key Telephone 
    Basic Key Sewice Unit (BKSIJj 
    The Basic KSU is housed in a wall-mount 
    cabinet that contains card slots for modu- 
    lar boards and associated pre-wired con- 
    nectors. 
    The KSU provides card slot 
    positions for DC/DC Converter (DC/DC), 
    Central Processing Board (CPB), 24 
    CO/PBX lines (3 COB’s), 48 stations (6 
    KIB’sl. an Application Board (APL), and 
    two Power Failure Transfer untts. One ( 1) 
    BKSU is required per system. 
    Expansion Key Service Unit [EKSUJ 
    The Expansion KSU is an add-on cabinet 
    that mounts next to the Basic KSU with 
    ribbon cable connectors to interface to the 
    Basic KSU, card slots to support up to 8 
    PCB’s and a pre-wired CO line interface 
    connector (a). The lQcpa.nsion KSU will 
    support a configuration of 16 CO lines and 
    48 Key Telephones/DSS Units/Phone 
    Boxes. One (1) EKSU is required when the 
    system exceeds 24 CO lines or 48 stations. 
    Two power supplies are required in the 
    External Power Supply Housing (EPS) for 
    Expansion KSU operation. 
    External Power Supply Housing (EPS) 
    The External Power Supply Housfng (EPS) 
    is a wall mountable cabinet that houses 
    the EPS motherboard (backplane), two 
    Power Supply Units 0%). the Single Lfne 
    Ringing Generator and Message Waiting 
    Power Supply Unit (RG), and the Battery 
    Charging Unit (BC). The EPS contains an 
    ON/OFF power switch. an AC input cord. 
    a DC output cord, battery connector panel 
    for connecting 24V dc of battery power, an 
    AC ON LED, a DC ON LED and a RING ON 
    LED for the Battery Charging Board (BC). 
    One (1) EPS Is required per system. 
    Issue 1, January 1992 
    200-l  
    						
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