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Vodavi Starplus Spd 4896 Hybrid Key Telephone System Installation Manual

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    							STARPLUS @ SPD 4996
    Digital Key Telephone SystemGENERAL DESCRIPTION
    l The system capacities are listed in Table 400-l
    Digital System Capacities.
    0Electrical specifications are listed in Table 400-2
    Electrical Specifications.l Environmental specifications are iisted in Table
    400-3 Environmental Specifications.
    lLoop limits are listed in Table 
    400-4 Loop Limits.
    0 Dialing specifications are listed in Table 400-5Dialing Specifications.
    l FCC Registrations Numbers are listed in Table
    400-6 FCC Registration Numbers.
    l Trunk Ordering information for Public Network
    Lines are listed in Table 400-7 Trunk Ordering
    Info: Public Network Lines
    l Miscellaneous Specifications are listed in Table
    400-9 Miscellaneous Specifications.
    l Key telephone, Single Line Telephone and OPX
    Audible Indications are listed in Table 400-10
    Digital Terminal Audible Signals, Table 400-I 1
    Single tine Telephone Audible Signals and Table
    400-12 OPX Telephone Audible Signals.
    l Key Telephone Visual Indications are listed in
    Table 400-l 3 
    DSWBLF Button Visual Indicators,
    Table 400-14 CO Line Button Visual Indicators,
    and Table 400-15 Function Button Visual
    Indicators.Issue 
    1, March 1994400-29 
    						
    							GENERAL DESCRIPTION
    STARPLUS @ SPD 4896
    Digital Key Telephone System
    Table 400-l Digital System CapacitiesTime Slots:144 
    PCM/TDM time slots
    Ports:
    CO/PBWCentrex Lines
    Digital Terminal Stations/  48 (max.) loop start (12 per CO1 2 board)
    /96 (max.) Digital Terminals (12 per KT12 board)
    Standard Single Line Telephones184 (max.) Standard 2500 type 
    SLTs (12 per SLI 2 board)
    Off-Premise Extensions
    Paging: (one way paging)/  96 (max.) OPX Stations (1 per single line adapter (OPX))
    Internal Paging
    1  4 (max.) internal Page Zones (software controlled)
    External Paging!  7 (max.) One zone per KT12 board.
    DTMF Receivers:12 (max.) per system (one 
    4-ck-t card on each SL12 board)
    (up to a max of 3 SL12 boards 
    w/DTM4’s can be installed in the
    system)DTMF Sender:
    l/O Ports:
    Contacts/Sensors (Relay Sensor
    Module)
    Conference:
    Circuits
    Parties per “bridge”
    DISA Circuits:
    Attendants:, 1 per system (time shared)
    /3 (max.) per system (one RS-232C included on CPU)
    ;  and two RS-232C on optional Backplane I/O module
    ;  4 Relay/Sensor Modules per system. Each Relay/Sensor Module
    /  has 3 relays and 3 sensing circuits.
    j  31 Conference “bridges” per system
    /  5 parties per “bridge”
    /  An unlimited number of CO Lines may be programmed
    I  simultaneously.
    I  Up to 3 stations can be designated as attendant(s).
    I
    Digital 
    DSS/DLS Consoles:
    Hunt Groups:
    Groups:
    Members:
    Types:
    ACD Groups:
    Groups:
    Members:
    RAN Announcements:
    Calls in Queue:
    UCD Groups:
    Groups:
    Members:
    RAN Announcements:
    Calls in Queue:
    Voice Mail Groups:
    Groups:
    Members: (ports)
    Integration Method:
    VM Message Wait:
    VM Disconnect Signal:
    Loop Supervision Disconnectj  72 (max.) Up to 3 DSS/DLS units can be programmed to function
    j  with each station. Each 
    DSS/DLS unit reduced station capacity by
    11. (96 Ports 
    + 4= 24 ports. 24 ports x 3 = 72 ports used for DSS
    /  Consoles)
    I  Software supports up to 8 groups.
    Software supports up to 8 stations in each group.
    Station or Pilot Hunting
    Software supports 16 Groups.
    Software supports up to 16 stations per group.
    ~  Eight RAN Announcements with any two per ACD Group.
    All CO Lines may be in queue for an ACD Group.
    I  Software supports 8 Groups.
    j  Software supports up to 8 stations per group.
    :  Eight RAN Announcements per UCD Group.
    -All CO Lines may be in queue for an UCD Group.
    ISoftware supports 8 Groups.
    ;  Software supports up to 8 stations per group.
    j  In-Band Signaling. 
    (DTMF)I  
    [420] to turn message waiting on,
    [421] to turn message waiting off.
    Programmable 
    12-digit (DTMF) string. If no digits are programmed,
    I  15 seconds of silence followed by busy tone.
    )  700 
    msec duration.(CO or Internal call to SLT)
    400-30Issue 1, March 1994 
    						
    							STARPLUS @ SPD 4996Digital Key Telephone SystemGENERAL DESCRIPTION
    Table 400-2 
    Electricai Specifications
    AC Input to Power Supply:117V ac + lo%, 60 Hz single phase
    Power Consumption:
    Power Supply Fuse 
    - AC input
    Longitudinal Balance:
    Idle Channel Noise:
    Cross Talk Attenuation:
    Single Frequency Distortion:
    (300 Hz 
    - 3400 Hz)
    Ringing Sensitivity:
    Ringer Equivalence Number: (REN)
    CO Line Signaling 
    - DTMF:
    Music Source (input)
    Contact Rating
    Multi Purpose Relay
    External Page Port
    Output Impedance
    Output Power 
    w/o compression
    Single Line Adapter (OPX)
    Battery Backup (UPS) Specifications*:
    Maximum Current Drain: (per system)
    UL File Number:120V ac 
    Q750VA max.
    430 watts maximum (per power supply)
    1 OA, 250V acBetter than 60db from 200 Hz to 1,000 Hz
    Better than 40db from 1,000 Hz to 4,000 Hz
    Less than 15 dbrnc for all connections
    Greater than 75dbm Station to CO and Station to
    StationStation to CO Line and Station to Station:
    Better than 2.0% or 34db
    Output level -30 dbm to 0 dbm
    16 Hz to 30 Hz at 40 VRMS minimum
    30 Hz to 67 Hz at 50 VRMS minimum
    1.9BFrequency pair at -5 dbm to 0 dbm
    Frequency tolerance, better than 
    +I .5%0 
    dBm max. at 600 ohms input impedance
    1 .OA, 24V dc600 ohms 
    Q 0 dBm1 
    mW Maximum
    Each OPX box requires 
    .5 amps of current.
    750VA min., Sine-wave output, on-line type
    550 watts
    El 09461
    _* End user must determine battery size needed for desired backup time.
    Table 400-3 Environmental Specifications
    /Operating Temperature
    1  Recommended Operating Temperature
    /  Storage Temperature
    Relative Humidity
    !, Heat Dissipation (BTU’s)
    !32’to104”F!
    60’ to 80’ F
    ’  
    -40’ to 140’ F
    :  5% to 95% non-condensing
    1200 BTU’s per power supply (maximum)
    Issue 1, March 1994400-31 
    						
    							GENERAL DESCRIPTIONSTARPLUS @ SPD 4696
    Digital Key Telephone SystemTable 400-4 Loop Limits
    Electronic Telephone:
    (including 
    DSS/DLS Console)1000 feet of 26 AWG Cable
    1000 feet of 24 AWG Cable
    1000 feet of 22 AWG Cable
    Standard Single Line TelephonesI  2000 feet of 24 AWG Cable
    Off-Premise Extensions (OPX) (Adapter to 
    SLT)1400 Ohms maximum loop, not including telephone.
    Table 400-5 Dialing Specifications
    DTMF Dialing
    Frequency Deviation
    Rise Time
    Duration of DTMF Signal
    Interdigit Time
    PULSE Dialing
    Pulse Dialing Rate
    Pulse Break/Make Duration
    _+I .5%
    5 msec.
    7.5 msec. minimumj  75 msec. minimum
    I
    !
    I
    (  
    lOor20pps./  
    60/40 or 66/33CO Type/  Loop Start, 600 ohm, current sensing
    Table 400-6 FCC Registration Numbers
    1  For Systems configured as a key system (button
    1appearance) use:/  
    DLPHKG-74722 KF-tFor Systems configured as a hybrid system (dial
    access codes) use:I
    j  DLPHKG-74723-MF-E
    Table 400-7 Trunk Ordering Info: Public Network Lines
    SYSTEM PORT IDENTIFICATION, FACILITY INTERFACE 
    & SERVICE ORDER CODES
    RINGER
    INTERFACE CARDEQUIVALENT iFACILITY LINE ;
    NUMBER (REN)INTERFACEJACK TYPE
    co Port:
    1  Off-Premise Extension: (OPX)
    1.902LS2 ~RJ21 X
    OL13CRJ21 X
    400-32Issue 
    1, March 1994 
    						
    							STARPLUS @ SPD 4896
    Digital Key Telephone SystemGENERAL DESCRIPTION
    dTable 400-8 Dimensions and Weight
    KEY SERVICE UNIT
    Height
    16”
    Width26”
    Depth
    15”Weight42 
    Ibs. (unloaded)
    POWER SUPPLY
    Height
    14.5”
    Width7.25”
    Depth
    6”Weight
    19.5 Ibs.OFF-PREMISE EXTENSION MODULE (OPX)
    Height
    1.75”
    Width7.625”
    Length8.0”
    Weight
    3.5 Ibs.
    REMYISENSOR MODULEDDIU UNIT
    Height
    1.75”
    Width7.625”
    Length 8.0”
    Weight
    3.5 Ibs.TRI-OUTPUT SUPPLY
    Height
    9”
    Width4”
    Length8.25”
    Weight
    10 Ibs.j  
    34-BUT-TON ENHANCED TERMINAL
    Height3.5”
    Width7.625”
    Depth9.625”.
    Weight
    3 Ibs.j  
    34-BUTTON EXECUTIVE DISPLAY TERMINAL
    1  Height3.5”
    ’  Width7.625”
    Depth9.625” .
    Weight
    3 Ibs./  
    14-BUTTON BASIC TERMINAL
    Height3.5”
    Width7.625”
    Depth9.625”
    Weight
    2.0 Ibs.
    DSS/DLS CONSOLE j
    /  Height3.0”
    /  Width7.625”
    /  Depth9.625”
    :  Weight
    2 Ibs.I
    Table 
    400-9 Miscellaneous Specifications
    Memory:Programmable Read-Only Memory (EPROM)
    Random Access 
    Memory (RAM):
    Telephone Transmitter:
    Talk Paths:
    CO/PBX/Centrex paths:Intercom Paths:
    Music Channels:
    Account Codes:
    Number of digits per account code:
    Number of Account Codes:
    Speed Dialing Memory:
    Station Speed Dial:
    System Speed Dial:
    Total speed dial bins:512K expandable to 4 Megabytes
    !  256K expandable to 2 Megabytes
    :  
    Electret mic compatible.
    j  48 CO/PBX 
    Centrex talk paths (non-blocking)
    j  Non blocking
    I  2 channels provides for music-on-hold and
    I  background music
    I
    !
    /  up to 12 unverified digits
    /unlimited (unverified)
    I  20 bins per station (24-digits)
    j  80 bins per system (24-digits)
    ’  1980 speed locations to be divided among all
    j  telephones.
    Issue 1, March 1994
    400-33 
    						
    							GENERAL DESCRIPTION
    STARPLUS @ si=D 4696
    Digital Key Telephone System
    Table 400-10 Digital Terminal Audible SignalsTYPE OF SIGNAL
    Key Teleohone Sianals:
    Incoming CO tine
    Intercom Tone Ringing
    Intercom Call Announce
    6-wTransferred CO Line
    CO Line Recall
    Message Wait Call Back
    Message Wait Reminder Tone
    CO Queue Call Back
    Camp-on
    Paging Alert ToneI
    f
    FREQUENCY !SIGNAL DURATION
    I/
    1
    1215/14710.8s on/2.4s off; repeated
    1215/14710.4s oni0.4s 0fflOAs on/2.0s off
    9350.2s on/0.2s off (2 bursts)
    1215/147
    12151147
    1215/l 47
    771
    1215/1471
    1215/1471
    935
    0.8s onl2.4s off
    0.2s on/.6s off, repeated
    0.4s otiO.4~ off(O.4~ on/2.0s off
    0.6s on (timed)
    0.2s onlO.6~ off; repeated
    0.2s on (1 burst)
    1 sec. (1 burst)Key Teleohone Confidence Tones:
    Intercom 
    RingbackCall Announce
    Busy Tone
    Error Tone
    Intercom Dial Tone
    DND Tone
    Paging Confirmation
    935Programming Confirmation
    1471Programming Error
    1471Confirmation Tone
    1471701
    935
    701
    701
    421
    701
    0.4s on/O.4s off(O.4~ onM.Os off
    0.2s on/0.2s off (2 bursts)
    0.4s onlO.4s off, repeated
    0.2s 
    on/0.2s off, repeated
    Continuous
    0.2s on/0.2s off, repeat 3x’s. pause,
    0.6s repeat
    1 
    set burst
    1.4 set burst
    0.2s on/0.2s off, 6x’s
    1.4 set burst. 1 time
    Table 
    400-l 1 Single Line Telephone Audible SignalsTYPE OF 
    SiGNALFREQUENCY 1SIGNAL DURATION
    Single Line Sianals:
    incoming CO Line
    Intercom Tone Ringing
    Transferred CO Line
    CO Line Recall
    CO Queue Call Back
    Sinale Line Confidence Tones:
    Intercom 
    RingbackCall Announce
    Busy Tone
    Error Tone
    intercom Dial Tone
    DND Tone
    Paging Time-out
    480+620Call 
    NVD Warning Tone
    420
    Camp-on Tone420
    Conference Warning Tone
    420
    Confirmation Tone420
    DND Warning Tone
    420 30 
    Hz! 50-9OV AC2.0s oni4.0s off
    30 Hz, 
    50-9OV AC1 .Os on/O.2s off(O.8~ on/4.0s off
    30 Hz, 
    50-9OV AC2.0s on/4.0s off
    30 Hz, 
    50-9OV AC2.0s on/4.0s off
    30 Hz, 
    50-9OV AC2.0s on/4.0s off
    440+480420
    480+620
    480+620420
    480+6201 
    .Os on/3.0s off; repeated
    0.2s on/0.2s off (3 bursts)
    0.5s on/0.5s off; repeated
    0.25s on/0.25s off; repeated
    Continuous
    0.2s on/O.2s off, repeat 3x’s, pause,
    0.5s; repeated
    0.5s on/O.5s off; repeated
    0.2s 
    on/0.2s off (six times)
    0.2s burst (1 time)
    1 set burst (1 time)1.4 
    set burst (1 time)
    0.2s on/O.2s off (6 bursts)
    400-34
    Issue 1, March 1994 
    						
    							STARPLUS @ St’D 4696
    Digital Key Telephone SystemGENERAL DESCRIPTION
    Table 400-12 OPX Telephone Audible Signals
    TYPE OF SIGNAL
    OPX 
    Sionals:incoming CO tine
    Intercom Ringing
    Transferred CO Line
    CO Line Recall
    CO Queue Call BackI
    IFREQUENCY /SIGNAL DURATION
    I
    30 Hz, 
    50-9OV AC2.0s on/4.os off
    30 Hz, 
    50-9OV AC2.0s on/4s off
    30 Hz, 
    50-9OV AC2.0s on/4.0s off
    30 Hz, 
    50-9OV AC2.0s on/4.0s off
    30 Hz, 
    50-9OV AC2.0s on/4.0s off
    OPX Confidence Tones:*
    Intercom 
    RingbackBusy Tone
    Error Tone
    intercom Dial Tone
    DND Tone440+480
    480+620
    480+620
    350+440
    480+6201 s 
    on/3s off
    0.5s 01Y0.5~ off; repeated
    0.25s on/O.25s off, repeated
    Continuous
    0.2s 
    on/O.2s off, repeat 3x’s, pause,
    Paging Time-out
    Call 
    F‘rND Warning Tone
    Camp-on Tone
    Conference Warning Tone
    Confirmation Tone
    DND Warning Tone
    *Precise Tone Plan420
    420
    420
    420
    420
    420
    0.5s; repeated
    0.5s 
    od0.5s off
    0.2s 
    on/O.2s off (six times)
    0.2s burst (1 time)
    I set burst (1 time)
    1.4 
    set burst (1 time)
    0.2s 
    onlO.2~ off (6 bursts)
    Issue 
    1, March 199440035 
    						
    							STARPLUS @ SPD 4896
    GENERAL DESCRIPTION
    Digital Key Telephone SystemTable 400-13 
    DSS/BLF Button Visual Indicators
    TYPE OF SIGNAL
    Off-Hook/Busy (All Stations)
    Incoming Intercom Ring (Destination)
    Call Announce (Destination)
    Message Waiting Call Back (Destination)
    Do Not Disturb (All Stations)
    Automatic Call Back (Destination)
    ACDAJCD Available/Unavailable
    ACD Overflow Station Available/UnavailableINDICATOR FLASH RATES
    Steady
    120 ipm flutter (Default)
    steady
    120 ipm flutter
    480 ipm triple wink
    120 ipm flash
    60 ipm flash
    60 imp flash
    Table 400-I 4 CO Line Button Visual Indicators
    TYPE OF SIGNAL
    Incoming CO Ring
    Transferred CO Ring
    RecallQueued Line
    1  Exclusive Hold
    )  System Hold
    /  I-Hold (only when hold preference is system)
    /  In UseINDICATOR FLASH RATES
    30 ipm flash (Default)
    120 ipm flash
    480 ipm flutter
    480 ipm flutter
    120 ipm flash
    60 ipm double wink
    60 ipm wink
    Steady
    Table 400-l 5 Function Button Visual Indicators
    TYPE OF SIGNALINDICATOR FLASH RATES
    Call Forward (active)30 imp flash (Default)
    Message Waiting (active)15 ipm flash (Default)
    Camp-on (active)120 ipm flash
    Call Back (active-initiator)120 ipm flash
    CO Line Queue (active)480 flutter
    Do Not Disturb (DND active)60 ipm flash
    Mute (microphone off, handset xmit off)Steady
    ON/OFF (speakerphone on/on-hook dialingSteady
    Conference (active)Steady
    Speed (momentarily ON until bin address dialed)Steady
    Personalized Messages15 ipm flash
    Intercom Call (Hold Button)15 ipm flash
    LoopSame as CO Line buttons
    PoolSame as CO Line buttons
    TransferSteady until transfer complete
    400-36Issue 1, March 1994 
    						
    							STARPLUS @ SPD 4896
    Digital Key Telephone SystemINSTALLATIONSECTION 500
    INSTALLATION
    500.1SITE PLANNING
    Selection of a suitable location is the most basic, yetmost critical consideration in the installation of a
    telephone system. The following should be consid-
    ered when choosing an appropriate location for
    equipment installation:
    0 Ample space must be allowed to remove
    the KSU cover, to access assemblies and
    cards within the cabinet and allow space for
    the MDF (Main Distribution Frame).
    lLocation of 
    CO/PBX line terminations must
    be considered when selecting a location for
    the KSU. In the case of telephone companyline, FCC approved connectors supplied by
    the telephone company, should be within 5
    feet (1.5 meters) of the cabinet/main distri-
    bution frame.
    l To minimize the length of cable runs be-
    tween the stations and the system KSU, thelocation of the majority of the telephone
    sets (stations) should be taken into consid-
    eration when selecting a location for the
    cabinet.
    lA well ventilated, and well lighted area hav-
    ing an optimum temperature range of 60
    degrees to 80 degrees F and a relative
    humidity range of 5 to 90% (non-condens-
    ing) must be provided.
    lArea lighting should be adequate for instal-
    lation and maintenance of the system. Haz-ardous or flammable materials should be
    removed from the vicinity. The immediate
    area must not be subject to flooding or
    excess moisture. The KSU should be 
    iso-
    !ated from areas of moving machinery or
    equipment. It is also recommended that
    static electricity-producing carpets not be
    installed in this area.
    l A separately fused, dedicated 
    117V ac,
    clO%, 15 Amp., 60 Hz, single phase, 3-wire (parallel blade with ground) power out-
    let should be located within 5 feet (1.5
    meters) of the system power supply.
    l The KSU and main distribution frame
    should be placed in an electrically noise
    free environment, isolated and shielded
    from equipment that causes 
    electro-mag-
    netic interference (EMI) or radio frequency
    interference (RFI). Examples of electricalnoise are rotating electrical machinery and
    arc welding equipment, refrigerators, copy
    machines, etc. Floor coverings that gener-
    ate static electricity should also be avoided.The system KSU should not be installed
    close to any equipment which may produce
    RR (Radio Frequency Interference) such
    as a radio frequency transmitter, or micro-
    wave oven.
    If the system is to be installed in a location
    prone to lightning strikes, provide lightning
    protection on the power line, any station
    cable runs outside the building, and CO
    lines.A. System Grounding
    To ensure that the system will operate properly,a good earth ground is required. Use of the
    Telco ground (source not demark) or a metallic
    COLD water pipe usually provides a reliable
    ground path. Carefully check that the pipe does
    notcontaininsulatedjointsthatcouldisolatethe
    ground. In the absence of the COLD water pipe,a ground rod or other source may be used. A
    No.14 AWG copper wire should be used be-
    tween the ground source and the KSU (25 feet
    maximum). The farther from the ground source,
    the larger the ground wire used should be. The
    wire should be kept as short as possible and
    can be connected to the ground lug provided on
    the lower left side of the backplane on the KSU
    with the cover off.
    B. Lightning ProtectionThe 
    Starplus Digital Key Telephone System
    should have Central Office lines, Single Line
    Telephones and Off-Premise Extension sta-
    tions protected with proper lightning surge ar-
    restors. This will provide protection from
    damaging surges on sensitive cabling by 
    non-direct lightning strikes.
    -The protection should contain a compliment of
    three-element gas-discharge tubes to ground
    high potential surges, and associated circuits toabsorb and filter lower level surges. This type
    of lightning protection is available through tele-
    phone equipment supply houses. Care should
    be taken to ensure that such protection devices
    are installed in accordance with the manufac-
    turers instructions and to ensure that no more
    than one set of protectors be installed on centraloffice lines at the installation premises. 
    Im-
    Issue 1, March 1994500-l 
    						
    							INSTALLATlON
    STARPLUS@ SPD 4896Digital Key Telephone System
    proper installation can be a serious safety haz-
    ard.Failure to provide the proper lightning protec-
    tion will increase maintenance expense and
    require more available spare parts.
    500.2
    INSTALLAnON PLANNING FOR THE
    SPD 4696 SYSTEM
    Prior planning of the installation will aid in a smooth
    cut-over and a satisfied customer. Select a suitable
    location for the system. Determine the number of
    telephones of each type, and the number of Key
    Telephone Boards 
    (KT12), Single tine Telephone
    Boards (SL12) from the sales contract and discus-
    sions with the customer. Refer to Figure 500-l Basic
    KSU Cabinet Mounting Arrangement for additional
    information.
    Only one station set is- allowed per digital
    extension number. it is not possible to bridge
    digita/ station ports so thatan extension number
    may appear in more than one location.
    l Programming information should also be
    gathered from the customer at this time so
    that the system may be programmed either
    before, or while the system is being in-
    stalled.l Determine the location and type of each
    telephone, and mark floor plans accord-
    ingly.
    *Determine the location for the operator sta-
    tions, and mark the floor plans.
    l Arrange for power cabling (if necessary)
    and station cabling of the site.
    l If the system is to be installed in an area
    subject to frequent lightning storms, con-
    sideration should be given to providing ad-
    ditional lightning protection on the CO lines
    beyond what is provided by the local tele-
    phone operating company.
    1
    Installers should be trained and thoroughly 1
    familiar with the &sic components of the system
    before attempting installation of this product/
    /
    500.3SYSTEM COMPONENTS FOR THE
    SPD 4696 SYSTEM
    A.Equipment Cabinet With Power Supply
    WWThe KSU is wall mounted. It is of metal con-
    struction with a backplane motherboard that
    has 23 card slots. The CPU card is inserted into
    the CPU card slot. Slots 
    2,3, and 4 are reservedfor future common cards. The VCB card is
    inserted into the VCB slot. The remaining slots
    are designated Slots 1 thru 19 for peripheral
    cards. The system defaults to a configurationthat designates peripheral slots 
    1,2,3 and 4 for
    Station boards, peripheral slots 5,6,7 and 8 arefor CO boards, and peripheral slots 9, 10, 11
    and 12 for the remaining station boards. Refer
    to figure 500-2 Basic KSU Equipment Cabinet
    for circuit board layout and location of connec-
    tors.
    Grounding:
    A No. 14 AWG 
    copper wire should be used to
    connect a ground between the ground source
    and the KSU (25 feet maximum). A two positionterminal strip (J25) is located on the lower left
    corner of the mother board and is accessible
    through the right side of the KSU. One terminal
    position can be used to connect the ground wirefrom a ground source.
    Power Supply:The system KSU is powered by modular power
    supplies that are mounted on the sides of the
    cabinet. The cabinet is divided so that one
    power supply will support a system configured
    with up to 48 CO lines and 60 stations (key or
    SLT). If the CO line or station requirements
    exceed the aforementioned configuration, the
    second power supply is needed. The power
    supplies provide the system with 24V power.
    They are plugged into a 120V ac circuit. The
    power supply and cabinet meet all safety re-
    quirements to comply with UL 1459 Second
    Edition and CSA C22.2 No. 225 standards.
    The power supply is recognized under the
    Component Program of Underwriters Laborato-
    ries Inc.
    8. Cabinet Installation
    Once the area for the telephone equipment has
    been selected, mount a plywood back board to
    the wall. The back board size will vary depend-
    ing upon the size of the MDF. The entire systemand frame can be mounted on a 4’ x 
    6’ x 3/4”plywood. A fully loaded cabinet can weigh ap-
    proximately 
    130 Ibs. Make certain proper
    mounting procedures are followed.
    Check local building and electrical codes before
    mounting the system. Forexample, certain areas1
    1
    may require a flame retardant plywood back 
    fboard.
    I
    1,Mount the cabinet to the plywood using 3/4”
    #12 pan-head sheet metal screws such that
    the top of the cabinet is approximately three
    feet (1 meter) from the ceiling, and bottom is
    at least six feet (1.8 meters) from the floor.
    Make certain before mounting the cabinet thatcircuit cards slide easily in and out of their
    respective card slots.
    2.Use the mounting template supplied with the
    500-2
    Issue 1, March 1994 
    						
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