GAI-Tronics ITR1000-001 User And Installation Manual
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GAI-Tronics ITR1000-001 User And Installation Manual

Basic tone remote desk set with line select
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Pub. 43004-032C
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
ITR1000-001 Basic Tone Remote
Desk Set with Line Select
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 ITR1000-001

  • Page 1 A H U B B E L L C O M P A N Y ITR1000-001 Basic Tone Remote Desk Set with Line Select 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 TRONICS...
  • 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

    FCC I ..........................1   NTERFERENCE ARNING CMOS I ..................2   ANDLING OF NTEGRATED IRCUIT EVICES   DESCRIPTION................................3 ITR1000-001 B ............. 3   EATURES AND ENEFITS OF THE ASIC EMOTE ............................. 4   HYSICAL ESCRIPTION ............................4   UTTON ANEL  ...
  • Page 4 Table of Contents ITR1000-001 Basic Tone Remote Desk Set .............................. 12   OWER ONNECTIONS ..............................13   ONNECTIONS   Line Considerations - Private Circuit ......................... 13   Circuit Conditioning ............................13 ..........................14   ETTINGS AND DJUSTMENTS   Line (Receive Audio) Input Level Adjustment ..................... 14  ...

  • Page 5: Foreword

    Foreword Scope of Manual This manual offers descriptive data and service information for the ITR1000-001 Basic 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 ITR1000-001 Basic 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 ITR1000-001 Basic Tone Remote Desk Set Feature Benefit Adjustable receive input Allows flexibility with different radio systems and user sensitivity and transmit output environments where radio output levels, line losses, and noise level factors vary.

  • Page 8: Physical Description

    ITR1000-001 Basic Tone Remote Desk Set Physical Description The ITR1000-001 Basic Tone Remote Desk Set, when used with a tone remote adapter such as the ITA2000, provides options for remote control of base station radios. It can be used as a desk set or mounted vertically on a wall.

  • Page 9: F1, F2, F3, And F4/Ls Frequency Buttons

    ITR1000-001 Basic Tone Remote Desk Set Description F1, F2, F3, and F4/LS Frequency Buttons Normally, these buttons are used to change frequencies on the selected radio. However, the use and function of these buttons are dependent on your radio’s capabilities. Whenever a frequency button is pressed, the button illuminates until a different frequency button is pressed.

  • Page 10: Programming Switches

    . This feature F4/LS is enabled via DIP switch position SWA-3. : The ITR1000-001 Desk Set will monitor the receive audio of the selected line (L1 or L2) only. 02/12...

  • Page 11: Accessories

    ITR1000-001 Basic Tone Remote Desk Set Description Accessories Description Part No. Tone Remote Adapter ITA2000A Audio Accessory Box XAAB002A Desk Microphone* XDM004A Footswitch* XFS002A Headset* (requires coiled cord) XHS003C Headset Coiled Cord* XCC004B *These accessories require the use of the XAAB002A Audio Accessory Box.

  • Page 12: Performance Specifications

    Description ITR1000-001 Basic Tone Remote Desk Set Performance Specifications Color ..............................Black Physical size ....................7.6 W  8.9 L  4.7 H inches Weight ..............................2.4 lbs. Temperature range ......................−35 C to +70 C Humidity ..................... 95% at 50 C (non-condensing) Line impedance ........................

  • Page 13: Operation

    Operation Operational Description The ITR1000-001 Basic Tone Remote Desk Set provides radio system control from a remote location. The desk set control tones are sent to the tone remote adapter through a private or leased line, and are used to control radio functions such as transmit, channel changes, and monitor. The receive audio from the radio system is sent to the desk set from the radio via the same private or leased line.

  • Page 14: Monitor Button

    Operation ITR1000-001 Basic Tone Remote Desk Set MONITOR Button Press the button (CTCSS/CDCSS disable) to place the radio in the monitor mode. Press this MONITOR button before making a call to verify a clear radio channel is available. TRANSMIT Button Press the button to place the desk set in the transmit mode and initiate voice transmissions.

  • Page 15: Installation

    Sample ITR1000-001 Installation Diagram - Shown connected in parallel within one building. Mechanical Receipt Inspection The ITR1000-001 Basic 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 16: Equipment Required

    Power Connections Power is applied to the ITR1000-001 from the provided ac wall transformer that is supplied with the unit. Power is applied to TS1-6 (+, lead with white dashed stripe) and TS1-5 (−).

  • Page 17: Line Connections

    ITR1000-001 Basic Tone Remote Desk Set Installation Line Connections To make the required line connections, a cable with a tinned bare leads stripped to about 3/8-inch or pin terminal is necessary. With the housing opened, route the lines through the slot in the housing bottom.

  • Page 18: Settings And Adjustments

    Installation ITR1000-001 Basic Tone Remote Desk Set Settings and Adjustments The desk set housing must be open with the circuit board exposed. These procedures assume that the base station has been properly adjusted. Line (Receive Audio) Input Level Adjustment This ensures that the tone remote desk set compression amplifier circuitry operates properly on signals from the base station.

  • Page 19: Audio Level Setting Procedure

    ITR1000-001 Basic Tone Remote Desk Set Installation Audio Level Setting Procedure 1. Set up an RF signal generator on the receive frequency with a 1 kHz tone set to system reference modulation applied to the station antenna. 2. Apply sufficient RF level to ensure a fully quieted radio channel, typically 1000 microvolts. If used, enable the correct receive CTCSS/CDCSS code.

  • Page 20: 2175 Hz Filter Adjustment

    Installation ITR1000-001 Basic Tone Remote Desk Set 2175 Hz Filter Adjustment This setting is factory adjusted and should only need readjustment if the notch filter circuitry needs repairs. Perform the following steps to make adjustments: 1. Cycle power to the desk set.

  • Page 21: Programming

    ITR1000-001 Basic Tone Remote Desk Set Installation Programming Front panel programming and the diagnostic mode are accessed by key press combinations entered within 3 seconds of power up. During this period, all of the LEDs illuminate as an indication that programming changes can be made.

  • Page 22: High Level Guard Tone Durations

    Installation ITR1000-001 Basic Tone Remote Desk Set High Level Guard Tone Durations Duration 120 ms 200 ms 300 ms 400 ms 500 ms Function Tone Durations Duration 40 ms 50 ms 60 ms 70 ms 80 ms 02/12...

  • Page 23: Function Tone Frequencies

    ITR1000-001 Basic Tone Remote Desk Set Installation Function Tone Frequencies Duration 2050 Hz 1950 Hz 1850 Hz 1750 Hz 1650 Hz 1550 Hz 1450 Hz 1350 Hz 1250 Hz 1150 Hz 1050 Hz 950 Hz 850 Hz 750 Hz 650 Hz...

  • Page 24: Programming Mode

    Installation ITR1000-001 Basic Tone Remote Desk Set Programming Mode : The initial key press must be made within 3 seconds of power up. The desk set automatically exits the program mode and returns to normal operation after 5 minutes. Programming Function Key Press Adjust and program HLGT duration.

  • Page 25: Theory Of Operation

    Theory of Operation Digital Circuits On power-up, microcontroller U1 reads switch SWA through tri-state buffer U3. Switch readings determine certain operating characteristics of the desk set. Analog-to-Digital Conversions Each keyboard button is associated with a particular voltage level at microcontroller inputs AN0 and AN1.

  • Page 26: Speaker Volume Control

    Theory of Operation ITR1000-001 Basic Tone Remote Desk Set The microcontroller selects the active microphone based on the state of the hookswitch. Microphone audio is scaled through U12d and gated to the compressor circuit consisting of U11, Q8, and associated components.

  • Page 27: Troubleshooting

    Troubleshooting Troubleshooting the ITR1000-001 Basic Tone Remote Desk Set The following is a list of potential problems you may encounter and possible solutions. Problem Possible Solution General problems. Ensure that there is a valid circuit line path from the desk set to the tone remote adapter.

  • Page 28: Fuse Replacement

    Troubleshooting ITR1000-001 Basic Tone Remote Desk Set Problem Possible Solution No receive audio on local Ensure that the tone remote adapter is supplying audio onto the private speaker or handset. circuit. Ensure that the desk set’s local speaker is not muted. Muting is indicated by a flashing frequency button.

  • Page 29: Main Circuit Board

    Main Circuit Board 02/12...
  • Page 30 Main Circuit Board ITR1000-001 Basic Tone Remote Desk Set...

  • Page 31: Schematics

    Schematics 02/12...
  • Page 32 Schematics ITR1000-001 Basic Tone Remote Desk Set Tone Desk Set Microprocessor Section Schematic - Sheet 1...
  • Page 33 ITR1000-001 Basic Tone Remote Desk Set Schematics Tone Desk Set I/O Section Schematic Diagram - Sheet 2...
  • Page 34 Schematics ITR1000-001 Basic Tone Remote Desk Set Tone Desk Set Audio Section 1 Schematic Diagram - Sheet 3...
  • Page 35 ITR1000-001 Basic Tone Remote Desk Set Schematics Tone Desk Set Audio Section 2 Schematic Diagram - Sheet 4...
  • Page 36 Schematics ITR1000-001 Basic Tone Remote Desk Set Tone Desk Set Audio Section 3 Schematic Diagram - Sheet 5...
  • Page 37 ITR1000-001 Basic Tone Remote Desk Set Schematics Tone Desk Set Power Supply Schematic - Sheet 6...
  • Page 38 Schematics ITR1000-001 Basic Tone Remote Desk Set...

  • Page 39: 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 40 Notes: ITR1000-001 Basic Tone Remote Desk Set...

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