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GAI-Tronics ITR1000A User And Installation Manual

Manual is about: Basic Tone Remote Desk Set

Summary of ITR1000A

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    Pub. 43004-002b gai-tronics corporation p.O. Box 1060, reading, pa 19607-1060 usa 610-777-1374 800-492-1212 fax: 610-796-5954 v isit www . Gai - tronics . Com for product literature and manuals 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 itr1000a basic tone remote des...

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    01/05 publication 43004-002b i confidentiality notice this manual is provided solely as an operational, installation, and maintenance guide and contains sensitive business and technical information that is confidential and proprietary to gai-tronics. Gai-tronics retains all intellectual property and...

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    01/05 publication 43004-002b ii table of contents foreword ...............................................................................................................................................................1 s cope of m anual .................................................................

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    Table of contents itr1000a basic tone remote desk set 01/05 publication 43004-002b iii line considerations - private circuit................................................................................................................13 circuit conditioning ...........................................

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    1 01/05 foreword scope of manual this manual offers descriptive data and service information for the itr1000a 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, speci...

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    Foreword itr1000a basic tone remote desk set 01/05 2 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 ...

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    3 01/05 description features and benefits of the itr1000a basic tone remote desk set feature benefit adjustable receive input sensitivity and transmit output level allows flexibility with different radio systems and user environments where radio output levels, line losses, and noise factors vary. Li...

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    Description itr1000a basic tone remote desk set 01/05 4 physical description the itr1000a 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. Al...

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    Itr1000a basic tone remote desk set description 5 01/05 control button the ctl button is used in conjunction with the volume up or volume down buttons to control the local speaker. It is also used during programming. Intercom button the intercom button, labeled ic, allows communication between desk ...

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    Description itr1000a basic tone remote desk set 01/05 6 programming switches a set of programming switches is included on the desk set. The switch settings are as follows: swa switch settings table switch determines: on off (default) swa-1 whether the handset off-hook monitor is enabled or disabled ...

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    Itr1000a basic tone remote desk set description 7 01/05 itr1000a basic tone remote desk set accessories description part no. Tone remote adapter ita2000a audio accessory box xaab002a desk microphone* xdm002a footswitch* xfs002a lightweight headset* xhs002a *these accessories require the use of the x...

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    Description itr1000a basic tone remote desk set 01/05 8 performance specifications color ..................................................................................................................................................... Black physical size.............................................

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    9 01/05 operation operational description the itr1000a 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 c...

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    Operation itr1000a basic tone remote desk set 01/05 10 initiating calls before initiating a call, press the monitor button to verify that the radio channel is clear. To initiate a call, press the transmit button or the handset push-to-talk (ptt) pressbar. The transmit led illuminates when transmitti...

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    11 01/05 installation planning the installation mechanical receipt inspection the itr1000a 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 com...

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    Installation itr1000a basic tone remote desk set 01/05 12 equipment required test equipment • rf service monitor • ac voltmeter with db ranges for measuring audio levels • #1 phillips screwdriver • 1/8-inch flat blade screwdriver documentation • base station’s tone remote adapter manual • these inst...

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    Itr1000a basic tone remote desk set installation 13 01/05 line considerations - private circuit if leased lines from your local telephone company are used between the desk sets and the ita2000 or similar tone remote adapter, the telephone company (local exchange carrier) may request a facility inter...

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    Installation itr1000a basic tone remote desk set 01/05 14 line output (transmit) level adjustment this process ensures the correct audio signal level is output to the remote control line during transmission. 1. Disconnect the handset from the desk set. 2. Apply a 1000 hz at 44 mv ac signal into the ...

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    Itr1000a basic tone remote desk set installation 15 01/05 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. 2. While all leds are i...

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    Installation itr1000a basic tone remote desk set 01/05 16 programming front panel programming and the diagnostic mode are accessed by keypress 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. Acce...

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    Itr1000a basic tone remote desk set installation 17 01/05 function tone frequencies f1 f2 f3 f4 duration off off off off 2050 hz off off off on 1950 hz off off on off 1850 hz off off on on 1750 hz off on off off 1650 hz off on off on 1550 hz off on on off 1450 hz off on on on 1350 hz on off off off ...

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    Installation itr1000a basic tone remote desk set 01/05 18 programming mode n ote : the initial keypress 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 keypress adjust and program hlgt ...

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    19 01/05 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...

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    Theory of operation itr1000a basic tone remote desk set 01/05 20 each control tone frequency is synthesized as a square wave by microcontroller u1. This signal is then scaled to the correct amplitude at inverting amplifier u19a. By means of outputs pa5 and pa6, the microcontroller selects either hig...

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    21 01/05 troubleshooting troubleshooting the itr1000a 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 ada...

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    Troubleshooting itr1000a basic tone remote desk set 01/05 22 problem possible solution no receive audio on local speaker or handset. Ensure that the tone remote adapter is supplying audio onto the private circuit. Ensure that the desk set's local speaker is not muted. Muting is indicated by a flashi...

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    23 01/05 main circuit board.

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    Main circuit board itr1000a basic tone remote desk set 24.

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    25 01/05 schematics.

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    Schematics itr1000a basic tone remote desk set 26 tone desk set microprocessor section schematic - sheet 1.

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    Itr1000a basic tone remote desk set schematics 27 tone desk set i/o section schematic diagram - sheet 2.

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    Schematics itr1000a basic tone remote desk set 28 tone desk set audio section 1 schematic diagram - sheet 3.

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    Itr1000a basic tone remote desk set schematics 29 tone desk set audio section 2 schematic diagram - sheet 4.

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    Schematics itr1000a basic tone remote desk set 30 tone desk set audio section 3 schematic diagram - sheet 5.

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    Itr1000a basic tone remote desk set schematics 31 tone desk set power supply schematic - sheet 6.

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    Schematics itr1000a basic tone remote desk set 32 n otes :.

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    33 01/05 definitions and acronyms term definition csq carrier squelch ctcss a means of grouping users of a common radio channel. Subaudible tones are transmitted with audio; a particular radio’s speaker (or the speakers of a group of radios) will unmute to broadcast a transmission only if the associ...

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    Notes: itr1000a basic tone remote desk set 34.