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Comdial Dxp Plus Instructions Manual

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    							Installing And Programming The Off-Premise Extension
    Interface On The Digital Communications System
    1.0 Introducing The Off-Premise Extension Interface
    This publication describes the features, applications, installation, specifications, and operation of the off-premise
    extension interface (OPX-X). The OPX-X is a multipurpose accessory with dual circuits that provide the
    following features:
    ·OFF-PREMISE EXTENSION—This feature adapts most industry-standard telephone devices to the digital
    communications system and allows them to be remotely located. The OPX-X will accept both tone (DTMF)
    and pulse (rotary) dialing from these devices.
    ·TIE-LINE—This feature allows you to connect two systems to each other using single-pair wiring of dedicated
    telephone lines.
    ·MODEM ADAPTER—This feature allows the flow of switched data between a data source and a data receiver
    through the DXP Plus analog station ports.
    The OPX-X is a dual off-premise extension (OPX) unit. It is housed in a self-contained metal enclosure that you
    can either wall or rack mount. The OPX-X has an internal power supply and ringing generator. Dual, high
    quality, low-loss, balanced, telephone transmission circuitry supports two off-premise extensions.
    Each off-premise circuit can drive a load with a maximum ringer equivalence number (REN) of two (2) thus
    allowing more than one industry-standard telephone connection at each off-premise location if desired.
    The OPX-X will support virtually any industry-standard telephone device such as 500 and 2500-type telephones,
    cordless telephones, answering machines, and data modems. The OPX-X provides the interfacing capability
    required to connect these devices to analog station ports in digital communications system.
    R
    This manual has been developed by Comdial Corporation (the “Company”) and is intended for the use of its customers and service personnel. The information in this manual is subject to change
    without notice. While every effort has been made to eliminate errors, the Company disclaims liability for any difficulties arising from the interpretation of the information contained herein.
    The information contained herein does not purport to cover all details or variations in equipment or to provide for every possible contingency to be met in connection with installation, operation, or
    maintenance. Should further information be desired, or should particular problems arise which are not covered sufficiently for the purchaser’s purposes, contact Comdial, Inside Sales Department,
    Charlottesville, Virginia 22906.
    Printed in U.S.A.IMI89–209.02
    9/95 
    						
    							1.1 Detailing The Specifications
    Electrical Specifications
    Power requirements: 117VAC +/- 10% single-phase @ .13A
    maximum
    Ringing voltage: 95 VAC Nominal @ 20 Hz
    Power rated to maximum REN = 2.0
    Battery feed voltage: 50 VDC nominal
    Loop current limits: 20 ma min. at 1500 ohms
    50 ma max. at 0 ohms
    DC loop limits: 1500 ohms maximum including telephony
    device (Approximately 20,000 feet with #24
    AWG twisted-pair cable and 400 ohm device
    load)
    Cable insulation resistance: 30,000 ohms minimum
    Cable requirement OPX-X to digital communications system 2-pair, twisted
    Cable terminations: 623-type, 4-conductor minijacks
    Dialing: Industry-standard DTMF
    Dial pulse (rotary) with nominal
    make/break ratio of 40/60 @ 10 PPS
    Ringing cadence: 1 second on/4 seconds off
    (typical for intercom calls)
    IMI89–209 Installing And Programming The OPX-X
    2 – Installing The OPX-X 
    						
    							Environmental Specifications
    Operating temperature: 32-122 F (0-50 C)
    Humidity: 90 % relative, non-condensing
    Mechanical Specifications
    Height: 3.0 in.
    Width: 10.25 in.
    Length: 11.50 in.
    Weight: 8 lbs. (plus 2 lbs. for packing material)
    Industry/Regulatory Standards
    FCC registered Key System: CVW7WC-12829-KF-E
    Hybrid/Key System: CVW7WC-16553-MF-E
    FCC certified, Part 15 (class A)
    UL listed
    Leased Line Specifications
    Facility interface code: 0L13C
    Line conditioning: Dry metallic
    Installing And Programming The OPX-X IMI89–209
    Installing The OPX-X – 3 
    						
    							2.0 Installing the Off-Premise Extension Interface
    2.1 Detailing The Mounting Considerations
    ·You can attach the OPX-X to any sturdy, flat, surface. It may be vertically rack mounted if desired.
    ·you must locate the OPX-X within six (6) feet of the proper electrical outlet. It requires a 117VAC circuit, with
    a third-wire ground, supplied to a standard (NEMA 5-15R) electrical outlet.
    ·you must keep the distance between the OPX-X and the KSU to 25 feet or less.
    ·Be sure that the mounting location is secure and dry and have adequate ventilation. Be sure that the temperature
    range of the location is within 32-122° F (0-50° C).
    ·If the mounting surface is damp or if it is concrete or masonry material, you must attach a backboard to the
    mounting surface. Suitable mounting backboards are available commercially or can be constructed out of
    1/2-inch plywood cut to size.
    ·Tools and hardware required for mounting the KSU cabinet include:
    ·Fasteners - wood screws (1/4 x 1-inch round head), toggle bolts, or wall anchors.
    ·Screwdriver - to match fasteners.
    ·Electric drill - if prepared holes are required.
    ·Connecting tool - for fastening wires to a type-66 connector block.
    ·Crimping tool - for 623-type modular plugs.
    2.2 Mounting The Cabinet
    1. Unpack, and carefully inspect the OPX-X for shipping damage. Notify the shipper immediately of any
    damages found. Verify that the packages contain all parts and accessories needed for proper installation and
    operation.
    2. If a backboard is required at the mounting location, attach it securely to provide a stable KSU mounting
    surface.
    3. Use the base of the OPX-X as a template or measure for mounting hole locations per the dimension details
    shown in Figure 1.
    4. Drill holes in the mounting surface of a proper size to accommodate the hardware being used. If necessary,
    prepare these holes with inserts, anchors or other attachment devices as dictated by the type of mounting
    surface.
    5. Attach the OPX-X to the mounting surface with four (4) screws installed through the mounting flange and
    into the mounting surface holes. Note that the flange holes are elongated with an enlargement at one end of
    the hole. This feature allows the mounting screws to be partially installed in the mounting surface before the
    KSU is hung on them.
    IMI89–209 Installing And Programming The OPX-X
    4 – Installing The OPX-X 
    						
    							AW1002A
    11.50
    10.25
    3.0
    8.75
    7.0
    Detailing The OPX-X Dimensions
    Installing And Programming The OPX-X IMI89–209
    Installing The OPX-X – 5 
    						
    							2.3 Connecting The Equipment
    ·Route the necessary cabling, and connect the OPX-X to the digital communications system per the connections
    detailed on the next page.
    ·The installation requires a grounding wire separate from the third-wire AC line cord ground. The OPX-X
    cabinet provides a ground stud. Connect a #10 or #12, insulated, solid copper, wire between this ground stud
    and either the ground stud on the digital communications system cabinet or a reliable earth ground.
    ·Plug the AC line cord for the OPX-X into a 117 VAC outlet. Observe the status light on the unit, and insure
    that it turns on steady.
    CAUTION
    To help insure that foreign voltages, which could appear on the TELCO lines, do not damage the system,
    be sure gas discharge tubes or similar protection devices are installed, and properly grounded, in all
    connected TELCO lines.
    2.4 Verifying Proper Installation
    Use a voltmeter to check for the presence of either AC or DC voltage on the OPX1 and OPX 2 ports.
    Make these voltage measurements with all system wiring installed and the AC power turned off.
    1. Measure for both AC and DC voltage between the TIP lead of the OPX 1 port and the KSU grounding stud.
    The measured voltage must be 0 volts.
    2. Measure for both AC and DC voltage between the RING lead of the OPX 1 port and the KSU grounding stud.
    The measured voltage must be 0 volts.
    3. Repeat steps 1 and 2 for the OPX 2 port.
    4. Apply AC power to the OPX-X.
    5. Repeat steps 1–3. The measured voltage must now be approximately -50VDC.
    IMI89–209 Installing And Programming The OPX-X
    6 – Installing The OPX-X 
    						
    							Connecting The Equipment
    Installing And Programming The OPX-X IMI89–209
    Installing The OPX-X – 7 
    						
    							2.5 Setting The Configuration Switches
    You must set the OPX-X’s configuration switches to match the digital communications system. The switches are
    located in an opening on the left side of the cabinet.
    Setting The Configuration Switches
    Switch System Condition Setting
    A
    System programmed to assign analog station port to OPX-X for circuit 1 Yes Closed
    No Open*
    BSystem programmed to assign analog station port to OPX-X for circuit 2 Yes Closed
    No Open*
    C
    Key- System
    Configured
    with . .Voice first intercom signalling enabled(note 1)Closed*
    Tone first intercom signalling enabled Open
    Prime line automatic enabled Open
    Hybrid system configured Open
    D
    (note 2)Off-premise device is intercom only Closed*
    Off-premise device has access to outside line through the digital communications system Open
    NOTE 1: This switch setting matches the system requirements. It is not possible to perform voice signalling
    from a device connected through an OPX-X to the common equipment.
    NOTE 2: When you have programmed the system to allow the off-premise device to have access to outside
    line, you must also enable a signal delay to prevent transmission of extraneous DTMF tones from the
    device over the outside line. When you enable this delay, the user must wait approximately 2 seconds
    before speaking when performing call announce and paging over intercom line. When the off-premise
    device is an intercom only device with no access to an outside line, you can disable the delay to facilitate
    faster cut-through to call announce and paging.
    *Factory settings
    BOTTOM
    OF
    HOUSINGLEFT SIDE
    OF HOUSING
    A
    B
    D
    CLOSED
    OPEN
    AW1001
    Locating The Switches
    IMI89–209 Installing And Programming The OPX-X
    8 – Installing The OPX-X 
    						
    							3.0 Programming For Off Premise Extension Interface Operation
    When operated through the OPX-X, the IST provides basic intercom service coupled with the ability to access
    outside lines. You can program the analog station port (through which the IST is being interfaced via the OPX-X)
    for eitherprime intercomoperation orprime line automatic and idle line preferenceoperation. Default is for
    prime intercom. Under either operating condition, you can program the station port to receive outside line ringing
    and to match either the rotary or DTMF dialing employed by the IST.
    3.1 Detailing The Prime Intercom Operating Condition
    With key-system configured digital communications systems, a system multiline telephone user can extend line
    access for call origination to an IST station by employing the call transfer feature. To provide outside line ringing
    to a prime intercom IST, program the OPX-X station port to have the ringing line preference feature and then
    enable ringing for all lines that you want to ring at the IST.
    With hybrid configured digital communications systems, you can make outside lines available to the IST for call
    origination by programming the IST for line group access. With line group access, the IST user can access an
    outside line by dialing the group access code over the intercom line. The digital communications system then
    selects one of the grouped lines for IST use.
    3.2 Detailing The Prime Line Automatic Or Idle Line
    Preference Operating Condition
    You can program an outside line as a prime line at the station port through which the IST is being interfaced, or
    you can program that station port for idle line preference and then assign several lines to the station port.
    With either prime line automatic or idle line preference, the IST has outside line dial tone for call origination
    when its user lifts its handset. You can enable outside line ringing at the IST station port that you have
    programmed for either prime line automatic or idle line preference. Alternately, you can enable the ringing line
    preference feature for the IST station port.
    The intercom line is still available to an IST even though you have provided outside line access. After going
    off-hook, the IST user obtains intercom dial tone by performing a hookflash (press and release the hookswitch) or
    by pressing the TAP button if one is available. Hookflash either drops the outside line (if the used dialed no digits
    after lifting the handset) or (if the user dialed some digits) places the line on hold and provides intercom dial tone.
    3.3 Detailing The Distinctive Ringing Condition
    Intercom calls that ring at equipment connected through an OPX-X have a different cadence than outside calls
    have. If desired, you can disable this distinctive ringing feature to make the intercom ring cadence the same as that
    for outside calls.
    3.4 Detailing The Through Dialing Condition
    You can program the station port through which the IST is being interfaced for through-dialing or you can disable
    the feature.  The system automatically enables the feature when you connect an OPX-X to the station port.
    Through dialing enabled is necessary if the connected IST is a dual-tone multifrequency (DTMF) tone dial device
    that requires that its generated dialing tones pass through the OPX-X, the common equipment, and onto a tone
    dial compatible telephone line.
    If the IST is a rotary telephone, you must disable the through dialing feature.
    Installing And Programming The OPX-X IMI89–209
    Installing The OPX-X – 9 
    						
    							3.5 Programming Procedures
    The OPX-X automatically identifies itself as an analog terminal interface for the digital station board as soon as
    you connect it to the digital communications system.
    Prime Line Programming
    Prime Line Type
    When you enable this feature, the station automatically selects a line, line group, or intercom number for use when
    the station user takes the station off hook. Use the programming procedures shown below to select the line port,
    line group, or intercom number to serve as the prime station calling interface.
    1. Press CONTROL T for main menu.
    2. From main menu, select stations and press ENTER.
    3. From stations menu, select station programming.
    4. Type personal intercom number or previously assigned name and press ENTER.
    5. From station programming menu, type item number for feature and press ENTER.
    6. Press SPACE BAR for desired value and press ENTER.
    7. When finished, press ESCAPE twice.
    8. Type y to accept changes, n to reject them, or r to resume editing and press ENTER.
    9. Repeat steps 4-8 for each station or press ESCAPE to end.
    Prime Line
    Use this procedure to choose the prime line.
    1. Press CONTROL T for main menu.
    2. From main menu, select stations and press ENTER.
    3. From stations menu, select station programming and press ENTER.
    4. Type personal intercom number or station name and press ENTER.
    5. From station programming menu, type item number for feature and press ENTER.
    6. From prime line menu, type line port number (type as n,nn,nnn or n–nnn) and press ENTER.
    7. When finished, press ESCAPE twice.
    8. Type y to accept changes, n to reject them, or r to resume editing and press ENTER.
    9. Repeat steps 4-8 for each station or press ESCAPE to end.
    Prime Intercom Number
    Use this procedure to choose the prime intercom number.
    1. Press CONTROL T for main menu.
    2. From main menu, select stations and press ENTER.
    3. From stations menu, select station programming and press ENTER.
    4. Type personal intercom number or station name and press ENTER.
    5. From station programming menu type item number for feature and press ENTER.
    6. From prime intercom menu, type personal intercom number and press ENTER.
    7. When finished, press ESCAPE twice.
    8. Type y to accept changes, n to reject them, or r to resume editing and press ENTER.
    9. Repeat steps 4-8 for each station or press ESCAPE to end.
    IMI89–209 Installing And Programming The OPX-X
    10 –  Installing The OPX-X 
    						
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