GAI-Tronics ITR2000A User And Installation Manual
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GAI-Tronics ITR2000A User And Installation Manual

Tone remote desk set
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Pub. 43004-006E
G A I - T R O N I C S ® C O R P O R A T I O N
A H U B B E L L C O M P A N Y
ITR2000A Tone Remote Desk Set
User and Installation Manual
GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA
610-777-1374  800-492-1212  Fax: 610-796-5954
V
.
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ISIT WWW
GAI
TRONICS
COM FOR PRODUCT LITERATURE AND MANUALS

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Summary of Contents for GAI-Tronics ITR2000A

  • Page 1 A H U B B E L L C O M P A N Y ITR2000A Tone Remote Desk Set User and Installation Manual GAI-Tronics Corporation 400 E. Wyomissing Ave. Mohnton, PA 19540 USA 610-777-1374  800-492-1212  Fax: 610-796-5954 ISIT WWW...
  • Page 2 GAI-Tronics. WARRANTY GAI-Tronics warrants for a period of one (1) year from the date of shipment, that any GAI-Tronics equipment supplied hereunder shall be free of defects in material and workmanship, shall comply with the then-current product specifications and product literature, and if applicable, shall be fit for the purpose specified in the agreed-upon quotation or proposal document.

  • Page 3: Table Of Contents

    ..........................1   NTERFERENCE ARNING CMOS I ..................2   ANDLING OF NTEGRATED IRCUIT EVICES   DESCRIPTION................................3 ITR2000A T ..............3   EATURES AND ENEFITS OF THE EMOTE ITR2000A D ......................4   NTRODUCTION TO THE ............................4   UTTON ANEL ........................
  • Page 4 Table of Contents ITR2000A Tone Remote Desk Set ..........................14   ARALLEL TATUS PERATION   INSTALLATION ............................... 15 ..........................15   LANNING THE NSTALLATION ......................... 15   ECHANICAL ECEIPT NSPECTION ................................15   OUNTING FCC I ..........................15   NTERFERENCE...

  • Page 5: Foreword

    Foreword Scope of Manual This manual offers descriptive data and service information for the ITR2000A Tone Remote Desk Set. Service diagrams and printed circuit board details are a part of this service manual. Nomenclature The model number, located on the nameplate on the bottom, specifically identifies GAI-Tronics equipment.

  • Page 6: Safe Handling Of Cmos Integrated Circuit Devices

    Foreword ITR2000A Tone Remote Desk Set Safe Handling of CMOS Integrated Circuit Devices Many of the integrated circuit devices used in communications equipment are of the Complementary Metal Oxide Semiconductor (CMOS) type. Because of their high open circuit impedance, CMOS integrated circuits are vulnerable to damage from static charges.

  • Page 7: Description

    Description Features and Benefits of the ITR2000A Tone Remote Desk Set Table 1. Features and Benefits Feature Benefit Programmable 4-frequency Any one of 16 EIA standard tones can be programmed for each function control frequency/function key. Parallel status updating Enhanced system flexibility when multiple desk sets are connected in parallel.

  • Page 8: Introduction To The Itr2000A Desk Set

    ITR2000A Tone Remote Desk Set Introduction to the ITR2000A Desk Set The ITR2000A Desk Set is an effective tool for maximizing the flexibility of radio systems. When used with a tone remote adapter, it provides numerous options for remote control of base station radio.

  • Page 9: Internal Microphone And Speaker

    Figure 2. ITR2000A Desk Set – Rear View Power Connector The ITR2000A is powered by a listed ac wall transformer supplying nominal 12 V dc. The operating range is 10.5 to 16 V dc. The five-pin power connector diagram and pinout are shown below: Figure 3.

  • Page 10: Audio Accessory/Rs-232 Port (P411)

    ITR2000A Tone Remote Desk Set Audio Accessory/RS-232 Port (P411) The ITR2000A contains an eight-pin modular desk mic port to provide audio accessory options. Possible accessories include desk mic, gooseneck mic, boom mic, headset, or footswitch. The port is also used as the connector to a PC for CARD Suite programming.

  • Page 11: Tone Levels

    When the monitor (CTCSS disable) is activated, the HLGT is generated for 120 ms, then a function tone of 2050 Hz is generated for 40 ms. Tone Levels Assuming that the ITR2000A has the HLGT output level set to 0 dBm:  The FT level and audio voice level are –10 dBm (10 dB below HLGT) ...

  • Page 12: Field Replacement Items

    Description ITR2000A Tone Remote Desk Set Field Replacement Items Table 5. Replacement Items Description Part No. PTT Handset with Cord, Black HANDSET-BLACK Replacement Power Supply, 100–240 V ac/12 V dc 40419-008 Power Supply Adapter, European 40420-001 Power Supply Adapter, UK...

  • Page 13: Operation

    ITR2000A control tones are sent to the remote adapter through a telephone line, and are used to control radio functions such as transmit, channel change, and monitor. Receive audio from the radio system is sent to the ITR2000A from the radio via the same telephone line connection. The , and buttons allow selection of four different base station frequencies.

  • Page 14: Ic (Intercom) Button

    Operation ITR2000A Tone Remote Desk Set IC (Intercom) Button Press to communicate between desk sets without transmitting over the radio. When is pressed and held, microphone audio is routed to the line without activating the radio transmitter. Other tone remote desk sets on the same line will hear the audio automatically.

  • Page 15: F1, F2, F3, And F4 Programmable Buttons

    “CARD Suite Software Programming” section for programming instructions. Each time the ITR2000A is powered up, the status of the radio is unknown. The red LED flashes in the programmable button last selected before the unit was powered down to provide indication of the currently selected function tone.

  • Page 16: Initiating Calls

    For the best transmit audio quality, maintain a distance of about 12 to 18 inches from the microphone. Transmit From Desk Microphone or Footswitch The ITR2000A can be keyed to transmit with an external desk microphone, headset, or footswitch through the audio accessory port. When a PTT is asserted through this port, the TX audio is originates there.

  • Page 17: Scanning Operation

    An example of this operation is as follows: 1. While scanning, the ITR2000A Desk Set operator wishes to transmit on channel 3. Before doing so, the operator must ensure that the channel is clear by placing the radio in monitor mode on channel 3.

  • Page 18: Parallel Status Operation

    ITR2000A Tone Remote Desk Set Parallel Status Operation The ITR2000A supports parallel status updating. This feature allows the dispatch positions to know the status of the base station. To decode this information, the unit senses high level guard tone (HLGT), then decodes the function tone (FT2) following.

  • Page 19: Installation

    Figure 5. Typical ITR2000A Installation Mechanical Receipt Inspection The ITR2000A Tone Remote Desk Set is shipped in a cardboard container with inserts. Thoroughly inspect it as soon as possible after delivery. In-transit damage should be immediately reported to the transportation company.

  • Page 20: Electrostatic Discharge (Esd) Protection

    ITR2000A Tone Remote Desk Set Electrostatic Discharge (ESD) Protection The ITR2000A has ESD protection circuitry that provides a high degree of protection against ESD, and power and telephone line surges. The circuitry shunts the transient currents to earth ground through the ground terminal.

  • Page 21: Line Connection

    1 through 6. Line Considerations - Private Circuit If leased lines from your local telephone company are used between the ITR2000A and the ITA2000A or similar tone remote adapter, the telephone company (Local Exchange Carrier) may request a Facility Interface Code (FIC).

  • Page 22: Microphone Sensitivity

    ITR2000A Tone Remote Desk Set Microphone Sensitivity After connections have been made, the ITR2000A must be configured for transmit and receive audio levels. These adjustments are made using the front panel buttons. The microphone sensitivity adjustment is used to compensate for different user voice levels and varied acoustical conditions. Refer to the following instructions to adjust the different microphones.

  • Page 23: Level Adjustments And Diagnostics

    After connections have been made, the desk set must be configured for transmit and receive audio levels. These adjustments are made using the front panel buttons. , and are used to program the ITR2000A for specific installations and perform diagnostics. They are: ...

  • Page 24: F1 - Line Output Adjust (Transmit)

    Installation ITR2000A Tone Remote Desk Set F1 – Line Output Adjust (Transmit) Connect an ac voltmeter or SinAd meter across the line to achieve the proper level setting. Ensure that the line is terminated with a 600-ohm load. After entering the main programming selection mode, press the button to adjust the line output level.

  • Page 25: F2 - Line-In Sensitivity (Receive)

    For example, if the RX audio output of the radio tone panel or ITA2000A is –10 dBm and the phone system has 10 dB of line loss, the ITR2000A line-in sensitivity should be set to level 6 (−9 dBm) to accommodate the 10 dB of incurred line loss.

  • Page 26: F3 - Internal Diagnostics

    TRANSMIT Not supported in the ITR2000A. Returns the ITR2000A to the main programming selection mode. TRANSMIT To quickly reset the desk set to default levels: Enter the main programming selection mode and while depressing the...

  • Page 27: Card Suite Programming Software

    Connection The GAI-Tronics equipment must be connected to your personal computer with the programming cable, Part No. XAC0004A, before the programming software can be used. To make this connection, attach the cable to the COM1 or COM2 connector on the computer.
  • Page 28 CARD Suite Software ITR2000A Tone Remote Desk Set 04/15...

  • Page 29: Troubleshooting

    The following is a list of potential problems you may encounter and possible solutions. Table 12. Troubleshooting Problem Possible Solution Refer to these solutions in Verify that there is a valid telephone line path from the ITR2000A to the addition to the ones tone remote adapter. suggested for the problems below.

  • Page 30: Fuse Replacement

    “Adjustments and Diagnostics” information to set the transmit output level for the internal microphone. ITR2000A does not Ensure that the ITR2000A is connected to an ac or dc (if using a dc power transmit or receive. supply option) power source.

  • Page 31: Circuit Boards

    Circuit Boards 04/15...
  • Page 32 Circuit Boards ITR2000A Tone Remote Desk Set...
  • Page 33 ITR2000A Tone Remote Desk Set Circuit Boards...
  • Page 34 Circuit Boards ITR2000A Tone Remote Desk Set...

  • Page 35: Schematics

    Schematics 04/15...
  • Page 36 Schematics ITR2000A Tone Remote Desk Set Line Interface Schematic - Sheet 1...
  • Page 37 ITR2000A Tone Remote Desk Set Schematics User Audio I/O Schematic Diagram - Sheet 2...
  • Page 38 Schematics ITR2000A Tone Remote Desk Set Control Microprocessor I/O Schematic Diagram - Sheet 3...
  • Page 39 ITR2000A Tone Remote Desk Set Schematics DSP Block Schematic Diagram - Sheet 4...
  • Page 40 Schematics ITR2000A Tone Remote Desk Set Tone Keypanel Schematic Diagram - Sheet 5...
  • Page 41 ITR2000A Tone Remote Desk Set Schematics Power Supply Schematic Diagram - Sheet 6...
  • Page 42 Schematics ITR2000A Tone Remote Desk Set Signaling Section Schematic Diagram - Sheet 7...

  • Page 43: Definitions And Acronyms

    Definitions and Acronyms Term Definition Carrier squelch A means of grouping users of a common radio channel. Subaudible tones are transmitted CTCSS with audio; a particular radio’s speaker (or the speakers of a group of radios) will unmute to broadcast a transmission only if the associated subaudible tone identifies it as belonging to the radio’s user group.
  • Page 44 Notes: ITR2000A Tone Remote Desk Set...

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