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  5. User And Installation Manual

GAI-Tronics ITR2000A User And Installation Manual

Manual is about: tone remote desk set

Summary of ITR2000A

  • Page 1

    Pub. 43004-006e gai-tronics corporation 400 e. Wyomissing ave. Mohnton, pa 19540 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 itr2000a tone remote de...

  • Page 2

    04/15 pub. 43004-006e 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 other ...

  • Page 3: Table of Contents

    04/15 pub. 43004-006e ii table of contents foreword ............................................................................................................................................................... 1 s cope of m anual .......................................................................

  • Page 4

    Table of contents itr2000a tone remote desk set 04/15 pub. 43004-006e iii p arallel s tatus o peration ................................................................................................................................ 14 installation .......................................................

  • Page 5: Foreword

    1 04/15 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, specificall...

  • Page 6

    Foreword itr2000a tone remote desk set 04/15 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 circui...

  • Page 7: Description

    3 04/15 description features and benefits of the itr2000a tone remote desk set table 1. Features and benefits feature benefit programmable 4-frequency function control any one of 16 eia standard tones can be programmed for each frequency/function key. Parallel status updating enhanced system flexibi...

  • Page 8

    Description itr2000a tone remote desk set 04/15 4 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. Control poi...

  • Page 9

    Itr2000a tone remote desk set description 5 04/15 internal microphone and speaker the handset must be on-hook in order to use the internal microphone, which is intended for use in low noise environments. The internal microphone and speaker are provided to allow hands-free communication. Handset the ...

  • Page 10

    Description itr2000a tone remote desk set 04/15 6 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 conne...

  • Page 11

    Itr2000a tone remote desk set description 7 04/15 fts range from 2050 hz to 550 hz in 100 hz steps. The ft level is 10 db lower than the hlgt. Table 3. Control tones monitor 2050 ft4 1650 ft8 1250 ft12 850 ft1 1950 ft5 1550 ft9 1150 ft13 750 ft2 1850 ft6 1450 ft10 1050 ft14 650 ft3 1750 ft7 1350 ft1...

  • Page 12

    Description itr2000a tone remote desk set 04/15 8 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 40420-002 po...

  • Page 13: Operation

    9 04/15 operation introduction the itr2000a tone remote desk set provides radio system control from a remote location. The 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 au...

  • Page 14

    Operation itr2000a tone remote desk set 04/15 10 ic (intercom) button press ic to communicate between desk sets without transmitting over the radio. When ic is pressed and held, microphone audio is routed to the line without activating the radio transmitter. Other tone remote desk sets on the same l...

  • Page 15

    Itr2000a tone remote desk set operation 11 04/15 f1, f2, f3, and f4 programmable buttons f1 , f2 , f3 , and f4 are programmable for specific function tones using the card suite software. Refer to the “card suite software programming” section for programming instructions. Each time the itr2000a is po...

  • Page 16

    Operation itr2000a tone remote desk set 04/15 12 initiating calls before initiating a call, press monitor to verify that the radio channel is clear. To initiate a call, press transmit or the handset push-to-talk (ptt) pressbar. The transmit led illuminates when transmitting. Always allow a short del...

  • Page 17

    Itr2000a tone remote desk set operation 13 04/15 scanning operation when used with the ita2000s scanning adapter, the itr2000a tone remote desk set provides scanning functionality and display for up to four frequencies (channels). The scanning adapter rapidly samples all four frequencies available t...

  • Page 18

    Operation itr2000a tone remote desk set 04/15 14 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 fun...

  • Page 19: Installation

    15 04/15 installation planning the 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 ...

  • Page 20

    Installation itr2000a tone remote desk set 04/15 16 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 g...

  • Page 21

    Itr2000a tone remote desk set installation 17 04/15 line connection connect the telephone line to the modular connector located on the back of the desk set. Refer to the pinout on page 6 in the “description” section. The six-pin modular jack is a full/half duplex connection to the line. The card sui...

  • Page 22

    Installation itr2000a tone remote desk set 04/15 18 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 fo...

  • Page 23

    Itr2000a tone remote desk set installation 19 04/15 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. F1 , f2 , f3 , and f4 are used to program the itr20...

  • Page 24

    Installation itr2000a tone remote desk set 04/15 20 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 f1 ...

  • Page 25

    Itr2000a tone remote desk set installation 21 04/15 f2 – line-in sensitivity (receive) after entering the main programming selection mode, press f2 to adjust the line-in sensitivity. This adjustment allows the desk set to compensate for a range of 21 db of line variation in 3 db increments. The comp...

  • Page 26

    Installation itr2000a tone remote desk set 04/15 22 f3 – internal diagnostics after pressing f3 to enter the internal diagnostics mode, all of the programmable button leds flash. Use transmit to return to the main programming selection mode. Table 11. Button function f1 not supported in the itr2000a...

  • Page 27

    23 04/15 card suite programming software general description gai-tronics’ card suite programming software, included in the no. Xac4000b programming bundle flash drive, is needed to program some of the functions and parameter settings of the dispatch equipment. It allows entry of operational programm...

  • Page 28

    Card suite software itr2000a tone remote desk set 04/15 24.

  • Page 29: Troubleshooting

    25 04/15 troubleshooting troubleshooting the itr2000a desk set 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 addition to the ones suggested for the problems below. Verify that th...

  • Page 30

    Troubleshooting itr2000a tone remote desk set 04/15 26 problem possible solution low tx audio. Verify that the itr2000a tx output level is properly set and ensure that there is no more than 20 db of loss in the telephone line, which can cause degradation of the audio signal. Verify that the micropho...

  • Page 31: Circuit Boards

    27 04/15 circuit boards.

  • Page 32

    Circuit boards itr2000a tone remote desk set 28.

  • Page 33

    Itr2000a tone remote desk set circuit boards 29.

  • Page 34

    Circuit boards itr2000a tone remote desk set 30

  • Page 35: Schematics

    31 04/15 schematics.

  • Page 36

    Schematics itr2000a tone remote desk set 32 line interface schematic - sheet 1.

  • Page 37

    Itr2000a tone remote desk set schematics 33 user audio i/o schematic diagram - sheet 2.

  • Page 38

    Schematics itr2000a tone remote desk set 34 control microprocessor i/o schematic diagram - sheet 3.

  • Page 39

    Itr2000a tone remote desk set schematics 35 dsp block schematic diagram - sheet 4.

  • Page 40

    Schematics itr2000a tone remote desk set 36 tone keypanel schematic diagram - sheet 5.

  • Page 41

    Itr2000a tone remote desk set schematics 37 power supply schematic diagram - sheet 6.

  • Page 42

    Schematics itr2000a tone remote desk set 38 signaling section schematic diagram - sheet 7.

  • Page 43: Definitions and Acronyms

    39 04/15 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...

  • Page 44

    Notes: itr2000a tone remote desk set 40