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Tait TM8000 Service Manual

Ta2922 universal line interface board
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TM8000 and TM9000 mobiles
TA2922 Universal Line
Interface Board Service
Manual
MAS-02922-01-00
Issue 0
January 2010

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  Summary of Contents for Tait TM8000

  • Page 1 TM8000 and TM9000 mobiles TA2922 Universal Line Interface Board Service Manual MAS-02922-01-00 Issue 0 January 2010...
  • Page 2: Contact Information

    Tait Electronics GB2413249, GB2413445, US5745840, US7411461, Limited. US7649893, US10/546696, US10/523952, US10/ The word TAIT and the TAIT logo are trademarks of 546697, US10/547964, US11/572700, US29/306491, Tait Electronics Limited. US61/218015, US61/236663, US61/238769, US61/ All trade names referenced are the service mark, 251372.
  • Page 3: Table Of Contents

    SK1 I/O signal configuration ......... . 26 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 4 Circuit Diagram - page 2 of 11........58 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 5: Preface

    ■ TM9100 Service Manual (MMA-00017-xx) ■ Always get the latest issue of a manual from the Tait Support website www.taitworld.com/technical. In addition to software release notes and the latest issue of a manual, useful downloads from the Support website include Technical notes (TN) which provide technical details not yet in the manuals or solve any problems that may have arisen.
  • Page 6: Publication Record

    Publication Record Issue Publication Date Description March 2010 Initial release. TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 7: Introduction

    Using an appropriate cable, two TA2922 interfaces can be installed into two TM8000 and/or TM9000 radios for linking purposes. This includes linking of repeaters (same RF band or mixed RF band) and mobile linking applications, for example an in-vehicle repeater that communicates between a wide area VHF radio network and a UHF portable radio.
  • Page 8: Specifications

    Active low, open collector, 70mA max EXT_GPIO3 to 7 Five bi-directional digital I/O lines, active low Input range 0 to 3.3V (3.6V max) Output range 0 to 3.3V @ 2mA TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 9: Connections

    IOP_GPIO7 to/from the radio IOP_GPIO7 GPIO7 3V3 logic level, 5V tolerant DGND analogue ground — IOP_RXD asynchronous serial port - receive data IOP_RXD IOP_TXD asynchronous serial port - transmit data IOP_TXD TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 10: External Options Connector (Sk1) - Ta2922-01 8-Wire Isolated Line Interface

    Rx Gate Rx gate output (connect to gnd via relay contacts when active) balanced Rx audio output -2dBm into 600 ohms for 2kHz Line out 2 deviation (wide band) TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 11: External Options Connector (Sk1) - Ta2922-04 Balanced Line Input With Unbalanced Speaker Output

    PTT in (active low) Rx Gate Rx Gate Rx gate output (connect to ground via relay contacts when active) balanced Rx audio output -2.5dBm into 600 ohms Line out 2 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 12: External Options Connector (Sk1) - Ta2922-06 6-Wire -10Dbm Line Interface

    Rx audio output -10dBm into 600 ohms Line out 2 Compliance This product complies with the following standards: EMC conducted and radiated emissions, CISPR22 for Australia/NZ ■ RoHS. ■ TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 13: Circuit Description

    The TA2922 Universal Line Interface is the TEL production copy of the AM8000- UIS board designed and manufactured by Tait Australia. The Universal Line Interface is a TM8000/TM9000 internal options board which occupies the internal options space within the TM series radio. It performs a range of flexible audio and digital interfacing between the radio and outside world via a 9-way D-range socket.
  • Page 14: Audio Interface

    Consult your Tait dealer for more information. The audio output level is adjusted by potentiometer VR1. Various TA2922 configurations are available from Tait Electronics with the audio output set to a pre-defined level. TA2922 Universal Line Interface Service Manual...
  • Page 15: Line In

    5V. This line can be driven directly from any open collector or relay contact output. RX Gate Output Both relay isolated and un-isolated open collector outputs are available for RX gate/busy detect output. TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 16: Digital I/O

    TA2922 shortly after power on. Microcontroller A Microchip PIC 18F45K20 microcontroller, U1, forms the centre of the digital processing, control and monitoring. The device is responsible for: TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 17 The configuration settings are technician programmable via a serial connection to a PC running the option board programming software. See “Programming the TA2922 board with the PGM- UIS” on page 41. TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 18 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 19: Installation

    Installation Procedure Disassemble the radio in order to gain access to the options cavity. For detailed disassembly instructions, refer to the TM8000 Service Manual. The circled numbers in the following instructions refer to items in the diagram. Remove the top cover and lid from the radio to access the options cavity.
  • Page 20 PCB. Refit the radio lid and top cover to the radio and screw the external options cover seal over the external options connector, using the two 4-40x3/16 screws TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 21 M3x8 self-tapping screws external options connector cavity internal options loom universal line interface board external options cover seal external options connector 4-40x3/16 screws TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 22 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 23: Hardware Configuration

    T2 to output of line output transformer T1 power 9-way +13.8V DC antenna D-range to TX Key control port depending on board configuration TM8000/TM9000 radio TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 24: 2-Wire Equipment Setup

    D-range port TM8000/TM9000 radio Setting line output level (VR1) Ensure the TM8000/TM9000 radio is programmed according to the pro- gramming instructions. See “Programming” on page 39. Open the lid of the radio by unclipping the plastic top cover and removing the four T20 screws.
  • Page 25: Talk-Through Level Adjustment

    Talk-through level adjustment The talk-through or side-tone feature is enabled by fitting optional component VR3 (Tait IPN 040-06000-00). This allows audio which enters the TA2922 interface on the balanced or un-balanced line in path to be re-routed back out on the balanced or un-balanced line out path.
  • Page 26: Sk1 I/O Signal Configuration

    (2W) 600 ohms +13V8_SW Switched DC supply output, Output 10.8-16VDC @150mA AUX MIC AUD Mic audio directly to the radio aux Input 2.3VDC 15mV RMS microphone input TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 27: Sk1 I/O Signal Descriptions

    2-wire audio in and out and for centre tap ‘phantom’ DC keying options. See “Additional configuration links” on page 38. Frequency response is from 50Hz to 3kHz. TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 28 The frequency response of this line through the TA2922 board is from 50Hz to 3kHz. This input is used with 4-wire balanced configurations and is not used in 2- wire configurations. TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 29 RV3 is fitted. The radio RX audio to line output level is adjusted by VR1. See “Setting line output level (VR1)” on page TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 30 Refer to the radio documentation for details. LINE IN UNBAL Signal direction: input ■ Signal level: 8mV to 1V RMS ■ Signal impedance: 50k ohms ■ TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 31 ■ Un-isolated TX gate output, active low. Has internal pull-up resistor to 3.3V, radio transmitter is keyed when the input voltage is pulled below 2.5V. Suitable for direct TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 32 10ms, so this latency time should be allowed for in timing calculations. The maximum voltage applied to this line should not exceed 3.3VDC. EXT GPIO5 Signal direction: bidirectional ■ Signal level: 3.3VDC max ■ Signal impedance: 470 ohms ■ TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 33 Signal impedance: 5k ohms ■ RS-232 data from PC to TA2922 board for programming parameters and option board software upgrades. The TA2922 may be configured to transparently pass TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 34 AUX I/O Signal direction: bidirectional ■ Signal level: N/A ■ Signal impedance: 50 ohms ■ TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 35 If desired, resistor R79 can be fitted in place of AC coupling capacitor C56 if DC level signals are required. TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 36: Sk1 I/O Matrix Smd Resistor Placement

    R99-2 R100-2 R101-2 R102-2 R103-2 R104-2 R105-2 R106-2 R107-2 R108-2 R109-2 R110-2 R111-2 R112-2 R113-2 R114-2 R115-2 R116-2 R117-2 R118-2 R119-2 R120-2 R121-2 R122-2 R123-2 R124-2 R125-2 R126-2 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 37: Sk1 I/O Matrix Bottom-Side Solder Links

    Failure to do so may result in unexpected operation or permanent damage to the TA2922 interface. TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 38: Additional Configuration Links

    Connect +13.8V to relay common and /GATE OUT 2 Connect half of optocoupler input and /PTT IN 2 to DC ground Select configuration profile 2 (if enabled in programming) TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 39: Programming

    Programming A TM8000/TM9000 radio fitted with a TA2922 universal line interface board requires programming using two different programming applications: the standard radio programming application suitable for your radio type, ■ the dedicated TA2922 PGM-UIS programming application. ■ Programming using the radio programming application The lines from the radio’s internal options connector that are used by the universal...
  • Page 40: Programmable I/O Form, Audio Tab

    A-Bypass In On PTT None C-Bypass Out On PTT PTT form, External PTT (1) tab Field Setting Advanced EPTT1 PTT Transmission Type Voice Audio Source Audio Tap In TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 41: Programming The Ta2922 Board With The Pgm-Uis

    Connect the 6-way header to S1 on the bottom side of the TA2922 universal line interface board. The cable is not required for the TA2922-02 2-wire interface as data lines are available on the external options connector SK1. TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 42: Programmable Fields In The Pgm-Uis Programming Application

    RX gate becomes invalid. This is useful for 2-wire line configurations where the presence of +12V on the transformer centre tap can indicate either RX gate output from the TA2922 board or TX key into the TA2922 board. TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 43 When this check box is selected, the RX line out audio source is after the radio volume control. This results in de-emphasised variable level line audio output level. Note that in some TM8000/TM9000 configurations, the RX_AUD line becomes fixed in value, such as when multi-head configurations are used, or with some remote head options.
  • Page 44 How often a beep tone is repeated. For example, to generate an alarm tone of 0.4 Beep Frequency seconds on, 0.6 seconds off, set Beep Duration to 400 and Beep Frequency to 0.6. Adjustable between 0.1 and 25.5 seconds TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 45: Functions

    Writes the data displayed in the window to the TA2922 board. Note that if the Write Powerup Serial Timer is enabled, the radio must be switched on and then the data written before the Powerup Serial Timer expires. TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 46 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 47: Testing And Fault Finding

    S2 is a 2x3-way connector intended for factory programming only Pin number Signal name Function +3.3V regulated supply Not connected Program clock DC ground MCLR Master clear/reset Program data TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 48 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 49: Pcb Information

    CAP 10n 50V ±10% 0603 X7R 1G10 018-14100-00 CAP 1n 50V ±10% 0603 X7R 1J13 018-14100-00 CAP 1n 50V ±10% 0603 X7R 1J13 018-14100-00 CAP 1n 50V ±10% 0603 X7R 1J13 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 50 RES 0603 10k 1% 1/10W 038-15100-10 RES 0603 10k 1% 1/10W 038-16105-10 RES 0603 105k 1% 1/10W 038-15270-00 RES 0603 27k 5% 1/10W 038-14470-10 RES 0603 4k7 1% 1/10W TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 51 RES 0603 100k 1% 1/10W 038-15100-10 RES 0603 10k 1% 1/10W 038-15100-10 RES 0603 10k 1% 1/10W 038-15100-10 RES 0603 10k 1% 1/10W 038-13470-00 RES 0603 470R 5% 1/10W TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 52 002-10032-02 IC RS-232 3V ESD ptct TSOP16 040-06000-00 RES pot 100k 12T side adj 6mm 040-06000-00 RES pot 100k 12T side adj 6mm 274-10023-00 XTAL 12.288MHz HC49/SM ±30ppm TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 53: Variant Parts

    • R74-2 • 1E10 • 1C11 • R81-2 • • • • 1E11 • R85-2 • • • • R197-2 C2 • R207-2 C2 • R226-2 E1 • TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 54: Pcb Layout - Top Side (228-29221-00)

    R199-2 R211-2 R216-2 R215-2 R214-2 R213-2 R212-2 R210-2 R209-2 R208-2 R225-2 R224-2 R223-2 R222-2 R221-2 R220-2 R219-2 R218-2 R217-2 R234-2 R233-2 R232-2 R231-2 R230-2 R229-2 R228-2 R227-2 R226-2 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 55: Pcb Layout - Bottom Side (228-29221-00)

    W207-2 W208-2 W209-2 W210-2 W211-2 W212-2 W213-2 W214-2 W215-2 W216-2 W217-2 W218-2 W219-2 W220-2 W221-2 W222-2 W223-2 W224-2 W225-2 W226-2 W227-2 W228-2 W229-2 W230-2 W231-2 W232-2 W233-2 W234-2 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 56 TA2922 Universal Line Interface Service Manual © Tait Electronics Limited March 2010...
  • Page 57: Circuit Diagram (228-29221-00)

    Mon Jan 25 12:06:45 2010 DESIGN CLONED FROM TEA A8000-UIS REV 1.0 A HOFFMAN ANURA G 12AUG09 ENGINEER: FILE NAME: SHEET NUMBER: REV/ISS AMENDMENTS DRAWN CHECKED DATE A Hoffman 228_29221 TA2922 Universal Line Interface Service Manual PCB Information March 2010 © Tait Electronics Limited...
  • Page 58: Circuit Diagram - Page 2 Of 11

    Circuit Diagram - page 2 of 11 PCB Information TA2922 Universal Line Interface Service Manual March 2010 © Tait Electronics Limited...
  • Page 59: Tait Electronics Limited March

    Documentation supplied by Tait, including from, the Software or Documentation, without limitation all information relating to whether made by Tait or another party, or any the Designated Products, hardware, software; improvements that result from Tait processes copyright, design registrations, trademarks;...
  • Page 60 Tait products and the related enhancements, new versions and new releases Open Source licenses, see: http:// of the software provided by Tait; and (iii) may support.taitradio.com/go/opensource contain one or more items of software owned by a third-party supplier. The term "Software"...
  • Page 61 Agreement; or (viii) use, or permit the use of, the Software in a manner Tait, its licensors, and its suppliers retain all of that would result in the production of a copy their Intellectual Property Rights in and to the of the Software by any means whatsoever Software and Documentation, in any form.
  • Page 62 Software warranty will be a period of one lieu of all other warranties whether express or (1) year from Tait shipment of the Software. If implied, oral or written, and including Licensee is not in breach of any obligations...
  • Page 63 Tait that all copies of the Software limited at the option of Tait to the repair or have been removed or deleted from the replacement of the Software or the refund of Designated Products and that all copies of the the purchase price of the Software.
  • Page 64 This Agreement is entered into solely for the acknowledges that it has read this Agreement, benefit of Tait and Licensee. No third party understands it and agrees to be bound by its has the right to make any claim or assert any terms and conditions.

This manual is also suitable for:

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