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Comdial Dsu II Installation Manual

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    							CLIP TERMIINALS
    26
    1
    {
    {
    Common
    Audible
    Station 17
    Audible
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    Station Connector Block
    (4-Line, 8-Station and
    8-Line, 16-Station Base Units)
    (Wiring shown for low current application - see caution text)
    Wir e to
    Common
    Audible
    Interface
    Relay
    Wir e to
    Common
    Audible
    Interface
    RelaySignalling
    Device
    Signalling
    DevicePower
    Source for
    Signalling
    DeviceAC or DC
    Input as
    Required
    AC or DC
    Input as
    Required
    AC or DC
    Input as
    Required 24V @ 1A Max.
    48V @ .5A Max.
    24V @ 1A Max.
    48V @ .5A Max. (Wiring shown with slave relay connection for high current application - see caution text)
    Power
    Source for
    Slave
    Relay
    Voltage Clamping Device
    Recommended
    Slave
    RelayPower
    Source for
    Signalling
    Device
    DSU222
    Common Audible Jack (pins 1 & 6)
    (16-Line, 32-Station Base Unit)123456
    Pin 1
    Pin 6}Common Audible Pair=
    Connecting Typical Common Audible Interface Wiring
    DSU II Digital Telephone System IMI66–132
    Installing The DSU II Digital Telephone System 2 – 31 
    						
    							2.10 Using The External Paging Interface
    The system provides a special transformer-isolated paging port that you can use to couple the
    system to a customer-supplied external paging amplifier. This external paging port does not
    provide a talk-back path nor will it recognize DTMF dial tones.
    You can use the relay closure dry-contact points that the system makes available at the ringing
    port terminal for controlling the external paging amplifier during a paging operation. These
    contacts close and stay closed during the time that a paging operation is active to provide a
    constant enable signal path for the paging amplifier.
    NOTE: This paging enable constant closure function overrides the ring pattern closure
    provided when ringing is sent to the paging port.
    ·Connect the audio input of a customer-supplied external paging amplifier to the paging port.
    ·If the paging amplifier requires an enable signal, connect the enable leads to the station 17
    audible terminals.
    J1632 Base Unit
    J1 Connector Block
    Station 17 Audible Connection for
    (J0408 and J0816 Systems)
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    CLIP TERMIINALS
    50
    26
    1 25
    Audio Input
    Enable Input Connect Audio
    Input To Common
    Equipment
    Paging Port
    DSU224
    PA System
    J0408 Base UnitPaging Port
    J0816 Base UnitPaging Port
    Paging Port
    DSU224
    1 2 3 4 5 6
    Pin 2
    Pin 5}Station 17 Audible Pair=
    Connecting A Typical External Paging Interface
    IMI66–132 DSU II Digital Telephone System
    2 – 32  Installing The DSU II Digital Telephone System 
    						
    							2.11 Using A Line Port As An
    External Paging Interface
    You can use class of service programming to program a line port to be an AUXILIARY port. As
    an AUXILIARY port, a user can use it to couple a telephone to an external paging device that
    you have wired to the line port. He or she does this from any station with that line presence by
    pressing the proper line button to select the AUXILIARY port. The user can dial DTMF tones or
    dial pulses through the AUXILIARY port as needed. The paging enable relay closure feature
    discussed previously is not available for use with this installation.
    ·Connect the audio input of a customer-supplied external paging amplifier to the tip and ring
    leads of the AUXILIARY port.
    ·You can install a DTMF tone select, zone-paging amplifier if you wish. If you do install
    this type of amplifier, the user must dial the zone-select code after he or she presses the
    AUXILIARY port line select button.
    RING 2
    RING 1
    TIP 1
    TIP 2
    RING 4
    RING 3
    TIP 3
    TIP 4
    RING 6
    RING 5
    TIP 5
    TIP 6
    RING 8
    RING 7
    TIP 7
    TIP 8CO/PBX
    LINES
    Line Termination
    Type 66M-XX
    Connector Block
    or
    Individual 6-Position
    Modular Jacks.
    .
    PA S y s t e m
    Program line port as
    auxiliary port and connect
    PA system to tip and ring
    pair of that port.
    Audio
    Input
    {
    {
    {
    {
    DSU215
    Connecting A Line Port As An External Paging Port
    DSU II Digital Telephone System IMI66–132
    Installing The DSU II Digital Telephone System 2 – 33 
    						
    							2.12 Connecting Data Devices To The System
    The DSU II includes serial data ports for use. The common equipment cabinet provides these
    ports as standard modular jacks labeled COM 1 and COM 2 This section contains information on
    two stages of wiring these connections for data devices.
    Section 2.12.1 explains connections from stations to modular jacks. Section 2.12.2 details wiring
    from the modular jack to the DSU.
    2.12.1 Making Modular Jack Data Connections
    Modular jack connections are wiring connections from a station to a modular (wall) jack.
    The system provides two serial data ports on the J0408 and four serial data ports on the J0816
    and J1632 for use.
    ·When you use a personal computer (PC) to perform class of service programming or to load
    system software into the system, connect it to COM 1.
    ·When you use a serial data printer for SMDR, SMDA, COS printout, or Caller ID, connect
    it to the COM 2.
    NOTE: The distance between a data device and the common equipment can be up to 500 feet
    in a quiet electrical environment. Some sites may require shielded cable for long
    runs. For longer distances, you must install limited distance modems to relay the data
    communications between the common equipment and a data device.
    When preparing a cable for connection to a data device, refer to the manufacturer’s manual for
    the equipment being interfaced and make the following wiring connections:
    ·Wire the common equipment RD (data from device to common equipment) connection to
    the device TD (transmit data) connection.
    ·Wire the common equipment TD (data to device from common equipment) connection to
    the device RD (receive data) connection.
    ·Wire the common equipment SG (signal ground) connection to the device SG (signal
    ground) connection.
    ·If required for proper operation, wire the common equipment CTS (clear-to-send status
    from device to common equipment) connection to the device RTS (request-to-send)
    connection.
    NOTE: The common equipment requires a positive voltage, with respect to signal ground, in
    order to send data.
    IMI66–132 DSU II Digital Telephone System
    2 – 34  Installing The DSU II Digital Telephone System 
    						
    							IBM
    IBM
    IBM
    5 4
    3
    2
    Front View
    of Jack654321
    TD
    RD
    SG
    }From COM 1
    Serial Data Port
    Typical VDT
    Interface
    Typical
    625A2
    Modular
    Jack
    Industry Standard
    Modular Line Cord
    (4-conductor)Typical modular to EIA adapter
    wiring shown for reference only.
    Typical Personal Computer
    Typical
    Data Printer
    1
    2
    3
    4
    5
    6
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    1
    2
    3
    4
    5
    6
    Front
    Vi ew o f
    JackSG RD TD
    5 4
    3
    2
    Front View
    of Jack654321
    TD
    SG
    }From COM 2
    Serial Data Port
    Typical Data
    Printer Interface
    Typical
    625A2
    Modular
    Jack
    Industry Standard
    Modular Line Cord
    (4-conductor)Typical modular to EIA adapter
    wiring shown for reference only.
    1
    2
    3
    4
    5
    6
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    1
    2
    3
    4
    5
    6
    Front
    Vi ew o f
    JackSG RD
    dsu263.cdr
    CAJS105
    1
    2
    3
    4
    5 6
    7
    8
    91
    2
    3
    4
    5
    6
    Front View
    of 6-Conductor
    Modular Jack
    Rear View
    of 9-Pin Female
    EIA ConnectorSG
    TD
    RD
    CTS
    Typical Modular To 9-Pin EIA Adapter
    Wiring Shown For Reference Only
    Connecting Data Devices Through Modular Connections
    DSU II Digital Telephone System IMI66–132
    Installing The DSU II Digital Telephone System 2 – 35 
    						
    							2.12.2 Making The Common Equipment Data Connections
    You must make wiring connections from the modular jack (wall jack) to the common equipment
    cabinet modular jack for the data connection.
    The default data communications format is as follows:
    ·8-bit data with 1 stop bit and no parity
    ·Baud rate of 9600 baud.
    Configure a data device to match this format for initial operation or reprogram the system’s data
    format to match those of a data device. The tables below list the system’s data ports.
    NOTE: The distance between a data device and the common equipment can be up to 500 feet
    in a quiet electrical environment. Some sites may require shielded cable for long
    runs. For longer distances, you must install limited distance modems to relay the data
    communications between the common equipment and a data device.
    IMI66–132 DSU II Digital Telephone System
    2 – 36  Installing The DSU II Digital Telephone System 
    						
    							J1632 Base UnitJ0408 Base Unit
    J0816 Base UnitCom 2
    Com 2
    Com 2 Com 3
    Com 3
    1.= Request to Send (RTS)
    2.= Clear to Send (CTS)
    3. = Receive Data (RD)
    4. = Transmit Data (TD)
    5. = Signal Ground (SG)
    6. = No ConnectionCom 1
    Com 1
    Com 1 Com 4
    Com 4
    DSU225
    (Front View of Jack)
    6
    5
    4
    3
    2
    1
    Making Data Connections To The System
    DSU II Digital Telephone System IMI66–132
    Installing The DSU II Digital Telephone System 2 – 37 
    						
    							2.12.3 Connecting A Personal Computer
    For Remote Programming
    You can connect a personal computer (PC) to the DSU II digital telephone system remotely
    through modems as described below. (For information on direct connection, refer to Section
    2.12.1. )
    You will need the following customer-supplied equipment:
    ·PC and appropriate software program,
    ·Pair of data modems.
    The data modems must be: “Hayes-compatible,” capable of 300-, 1200-, 2400-, or 9600-baud
    data speeds, and have auto-answer capability. Be sure to verify the auto-answer capability before
    purchasing the units. You are assured of best results if you employ modems of the same make
    and model at both the installation site and the remote programming site.
    Make the equipment connections per the following procedure:
    1. Determine the signal needs of the modem from the user’s manual for it. (The digital
    telephone system only requires TD, RD, and SG but the modems may require more signals.
    Check with the modem manufacturer for special requirements).
    2. Wire the proper connector (to match the data jack) on one end of a length of multiline cable.
    3. Punch down the appropriate leads on the connector block.
    4. Connect the network jack of the data modem to an outside telephone line. (If a line is not
    reserved for remote programming, have a line switch installed so that on site personnel can
    switch the outside telephone line between the data modem and the digital telephone system
    cabinet when you are going to perform remote programming.)
    5. Refer to the user’s manual for the modem, and program the modem to automatically answer
    after the first ring.
    6. Interface the PC with the modem at the programming site per the user’s manuals for the
    equipment be used.
    7. Establish a communications link for programming the system from a remote site.
    ·If you have had a line switch installed at the customer site, call someone there and ask them
    to set it for modem operation.
    ·After the outside line is connected to the modem, make the data link between the
    originating and the remote modems, and perform programming from your remote site just
    as if the PC was connected directly to the system.
    IMI66–132 DSU II Digital Telephone System
    2 – 38  Installing The DSU II Digital Telephone System 
    						
    							If you experience difficulty in establishing a communications path between your PC, modems,
    and the digital telephone system, note the suggestions that are listed below.
    ·Confirm that the modems are wired correctly. Be sure RD, TD, and SG are connected to the
    system’s serial data connection. Reverse connections at pins 2 and 3 if necessary.
    Sometimes you must strap pin 4 to 5, or pin 6 to 7, or pin 6 to 8 to 20 in the modem wiring.
    Check the modem’s installation manual for this requirement. Also check the manual for any
    additional wiring connections.
    ·Use a breakout box data tester to troubleshoot the data communications lines.
    ·Be sure that your modem has: auto-answer capability, DTR override, and CD override and
    that the Result Codes, On-Line Echo, Off-Line Echo, and Flow Control are disabled. Plus,
    make sure that you have enabled the modem’s auto-answer feature. The way to do this is to
    program an initialization string into the modem. A typical initialization string that uses
    generic modem AT Commands for connection to a telephone system’s serial data port is as
    follows:
    AT E0 F1 L2 Q1 S0=0 &C0 &D0 &K0 &W0 &Y0.Remember, this is a typical
    initialization string—not all modems will respond to it. You should refer to your modem’s
    instruction manual if you have difficulty.
    Typical
    Personal Computer
    Data JackLine
    Switch Telco Network
    Network
    Jack Data
    JackTypical Common
    Equipment Cabinet
    Data
    Port
    Line
    Port
    Network Jack Data
    Modem
    Data
    Modem
    dsu260.cdr
    Installing A Personal Computer For Remote Programming
    DSU II Digital Telephone System IMI66–132
    Installing The DSU II Digital Telephone System 2 – 39 
    						
    							2.13 Using The Music Interface
    If music is to be part of the system, connect a customer-provided music source to the common
    equipment music interface jack (phono jack) provided for this purpose. The impedance of this
    input is approximately 500W. Use the volume control on the music source to adjust the audio
    level of the music as required.
    Music Interface
    Music Source
    (for music on hold
    and background music)
    DSU216
    Using The Music Interface
    IMI66–132 DSU II Digital Telephone System
    2 – 40  Installing The DSU II Digital Telephone System 
    						
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