MX800 -T19 Option

Base Station, Repeater, Receiver and Transmitter

MX800 -T19 Option

T19 Technical Manual

This page left blank intentionally Technical Manual MX800 Transceiver T19 Option

RELM Wireless Corporation 7100 Technology Drive West Melbourne, FL 32904 Front Desk: (321) 984-1414 Sales: (800) 821-2900 Service: (800) 422-6281 www.RELM.com

Manual Revision 1.0.3 May 2010

In order to continually improve our products, Spectra Engineering Pty Ltd reserves the right to alter, without notice and at any time, the equipment and specifications described in this document.

All performance figures quoted are typical and are subject to normal manufacturing and service tolerances.

The purchaser is warned that statements made in this document may be inaccurate due to typographical or other errors or subsequent modifications of the product. While every care has been taken in the creation of this document, no warranty of accuracy or reliability is given, in any advice or information contained in this document. The responsibility for any loss or damage whatsoever arising in any way or any representation, act or omission whether express or implied (including responsibility to any person by reason of negligence) is not accepted by Spectra Engineering Pty Ltd or any director, officer, agent or employee of Spectra Engineering Pty Ltd.

This work is copyright. Other than as permitted by Law, no part of it may be reproduced, stored in a retrieval system or transmitted in any form or by any process without prior written permission.

Regulatory Information

Federal Communications Commission (FCC) Interference Warning.

Note: The equipment has been tested and found to comply with the limits for a class B digital device, pursuant to Part 15 of the FCC Rules..

Radio And Telecommunications Terminal Equipment (R&TTE) Directive insures the protection of health and safety of users, as well as electromagnetic compatibility. Please see Declarations of Conformity or specification sheet for approved bands and test standards.

These standards & limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial or residential environment. This equipment generates, uses and can radiate radio frequency energy. If not installed and used in accordance with this instruction manual, may cause harmful interference to radio communication.

This page left blank intentionally

2 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

Record Of Changes

Any changes to this manual are recorded on this list. Spectra Engineering may issue replacement pages to you from time to time. If any updates are issued, you will also receive a replacement for this page.

Date Version Chapter Changes Pages Changed 30/03/08 1.0.0 Initial Release. 30/03/09 1.0.1 Added Tone Remote Section. 10/06/09 1.0.2 Updated Section 1.8.2 Repeater Modes Description, Added section 1.11 Line Equalizer. 12/05/10 1.0.3 Added TRC Setup procedure 31,49 14/05/10 1.0.4 Updated TRC Setup Procedure 31,49

SAFETY SUMMARY

Although there are no dangerous mains voltages present within the equipment, the following general safety precautions as would normally apply, should be observed during all phases of operation, service and repair of this equipment.

AROUND THE EQUIPMENT To minimise any possible shock hazard from an external power supply or lightning strike, the chassis or equipment cabinet must be connected to an electrical ground.

To minimise any possible shock hazard from an external power supply or lightning strike, the chassis & equipment cabinet must be connected to an electrical ground.

A threaded grounding screw terminal is provided on the left-hand side of the radio chassis for connection to the site ground point (Protective Earth).

Provide adequate ventilation around the rear of the equipment.

DO NOT OPERATE IN AN EXPLOSIVE ATMOSPHERE Do not operate the equipment in the presence of flammable gases or fumes. Operation of any electrical equipment in such an environment constitutes a definite safety hazard.

DO NOT ATTEMPT INTERNAL SERVICE WHILE TRANSMITTING Thermal or RF burns may result from touching certain components within the power amplifier module while transmitting or operating the transmitter.

DO NOT SUBSTITUTE PARTS OR MODIFY THE EQUIPMENT Because of the danger of introducing additional hazards, do not install substitute or lower voltage parts to the equipment. Return to your authorised distributor.

EXERCISE CAUTION AND CORRECT DISPOSAL OF RF POWER DEVICES Most RF power transistors and some RF power hybrids contain Beryllium Oxide. Although they are normally safe, if physically damaged toxic dust may be released. Consult your local authority for correct disposal thereof.

WARRANTY CONDITIONS & PRECAUTIONS

The following conditions are not covered by the warranty of the MX800. Please ensure that the MX800 is not subject to;

1. Over voltage or Reverse Power Supply Voltage.

2. Operation in locations subject to abnormal environmental conditions such as extreme temperatures or ingress of moisture.

3. Operation of the MX800 Transmitter output into an open or short circuit or an incorrectly terminated load.

4 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

Table of Contents

1. T19/26 Line Interface Board...... 9 1.1.1 Installation ...... 10 1.2 2Wire or 4Wire Selection, Balanced VF ...... 12 1.3 T19 / T26 Secondary E&M leads ...... 12 1.4 Variable & Stepped Tone Encoder ...... 13 1.4.1 Voting Law ...... 13 1.4.2 Configuration ...... 14 1.4.3 Adjustment ...... 14 1.4.4 Calibration ...... 14 1.4.5 Variable & Stepped Tone Encoder Setup Procedure ... 15 1.5 Status Tone Encoding & Decoding (T19 only)...... 16 1.5.1 Status Tone Encoder & Decoder Setup Procedure ...... 16 1.6 Five Tone Encoded / Decoder (SELCALL) ...... 18 1.6.1 SELCALL Tone Sets ...... 18 1.6.2 Selcall Configuration ...... 20 1.6.3 Enabling and disabling SELCALL ...... 21 1.6.4 Selecting the tone set...... 22 1.6.5 Configuring the SELCALL commands ...... 22 1.6.6 Changing the SELCALL transmit preamble ...... 24 1.6.7 Changing the SELCALL acknowledge preamble ...... 24 1.7 Motorola TRICK Emulation ...... 25 1.7.1 Repeater States ...... 25 1.7.2 Repeater Modes and Control ...... 26 1.7.3 Tone Remote Control ...... 29 1.7.4 Default Configuration ...... 30 1.7.5 Tone Remote Control Setup Procedure ...... 31 1.8 RX Line Output Frequency Compensation ...... 33 1.9 T19/26 Pin outs ...... 34 1.10 T19/T26 Jumper Settings ...... 36 2. Software Menu System ...... 37 2.1.1 Configuration Menu ...... 38 2.1.1 Encoder Configuration Menu ...... 38 2.1.2 Hardware Configuration Menu ...... 39 2.1.1 DTMF Configuration Menu ...... 39 2.1.2 Decoder Configuration Menu ...... 40 2.1.3 Tone Remote Control Configuration Menu ...... 40 2.1.1 Selcall Configuration Menu ...... 41

2.1.2 Diagnostics Menu ...... 41 2.1.3 Calibration Menu ...... 42 3. Setting up HyperTerminal ...... 43 4. Firmware Upgrade ...... 49 4.1 Upgrade Procedure ...... 49 4.1.1 Upgrade Steps ...... 49 5. PCB Overlay ...... 51

6 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

List of Tables

Table 1-1 T19/T26 Font Panel Leds ...... 12 Table 1-2 Signal decision levels/points and coresponding tones...... 13 Table 1-3 Nominal SELCALL Durations ...... 18 Table 1-4 Standard SELCALL Frequencies ...... 19 Table 1-5 Repeater Functionality ...... 26 Table 1-6 Line Equalizer Settings ...... 33 Table 1-7 CN3 Connections ...... 34 Table 1-8 CN9 Connections ...... 35 Table 1-9 T19/26 Factory Default Jumper Setting...... 36

List of Figures Figure 1-1 MX800 T19/T26Option Board ...... 9 Figure 1-2 SELCALL menu ...... 20 Figure 1-3 Menu with SELCALL disabled ...... 21 Figure 1-4 SELCALL tone options ...... 22 Figure 1-5 SELCALL commands menu ...... 23 Figure 1-6 MXTOOLS channel information ...... 27 Figure 1-7 MXTOOLS channel RF mode ...... 27 Figure 1-8 Line Equalizer Response Graph ...... 33 Figure 1-9 CN3 Pin-out Detail (View from Rear of MX800) ...... 34 Figure 1-10 CN9 RJ45 Pin-out Detail (View from Rear of MX800) ...... 35 Figure 2-1 T19/T26 Main Software menu ...... 37 Figure 2-2 T19/T26 configuration menu ...... 38 Figure 2-3 T19/T26 Encoder configuration menu ...... 38 Figure 2-4 T19/T26 Hardware configuration menu ...... 39 Figure 2-5 T19/T26 DTMF configuration menu ...... 39 Figure 2-6 T19/T26 Decoder configuration menu ...... 40 Figure 2-7 T19/T26 Tone Remote Control configuration menu ...... 40 Figure 2-8 T19/T26 Selcall configuration menu ...... 41 Figure 2-9 T19/T26 diagnostics menu ...... 41 Figure 2-10 Calibration Menu ...... 42 Figure 3-1 HyperTerminal connection description ...... 43 Figure 3-2 HyperTerminal COM port selection ...... 44 Figure 3-3 HyperTerminal communication parameters...... 45 Figure 3-4 HyperTerminal disconnect ...... 46 Figure 3-5 HyperTerminal connection properties ...... 46 Figure 3-6 HyperTerminal terminal settings...... 47 Figure 3-7 HyperTerminal ASCII setup ...... 48 Figure 4-1 T19/T26 Bootloader prompt ...... 50

Figure 0-1 T19/T26 PCB Overlay ...... 51

8 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

1. T19/26 Line Interface Board.

The MX800 T19 / T26 option board provides the radio base station with utmost flexibility in system design and capabilities, with an extensive range of new features.

Please consult Spectra, for the availability of these features or software upgrades. Not all features are currently available.

◆ 2Wire (VF Hybrid) or 4Wire Selection, Balanced Audio, Dual E+M, ◆ Base Station Variable Tone Voting ◆ Base Station Stepped Tone Voting ◆ Status Tone Encoding And Decoding (T19 only) ◆ Five Tone Encoded / Decoder (T19 only) ◆ Remote Control Capabilities ◆ VF Line compensation for SINAD Voters ◆ Real-time Clock

Figure 1-1 MX800 T19/T26Option Board

Due to ongoing development please refer to www.spectraeng.com.au for the latest information regarding this option.

Note These are software selectable provided the correct option board is selected/used, and not all option can be used in conjunction with each other. Some parts many not be populated. Jumpers referred below are those on this option PCB.

1.1.1 Installation

CAUTION: COMPONENTS USED ARE STATIC DAMAGE SENSITIVE! (ESD)

Components Required:

1. T26/19 Option PCB & RJ45 Daughter PCB. Qty-1

2. M3X 25mm Standoff posts. Qty-4

3. M3X 3mm screws Qty-3

4. Front panel. Qty 1 (Front Panel upgrade required to support switch and Led mounting,)

5. CABLE IDC SKT - IDC SKT 16W 125mm cable Assy. Qty-1

6. CABLE IDC SKT-IDC SKT 10WAY 150mm cable Assy. Qty-1

7. CABLE IDC SKT-IDC SKT 16WAY 170mm cable Assy. Qty-1

8. CABLE IDC SKT-IDC SKT 10W 330mm cable Assy. Qty-1

9. CABLE IDC DB9M-IDC SKT 10W 195mm cable Assy. Qty-1

10. CABLE IDC DB15F-IDC SKT 16W 210mm cable Assy. Qty-1

11. CABLE IDC SKT-IDC SKT 16WAY 210mm cable Assy. Qty1

Test Equipment Required:

1. Communications Test Set

2. MX800 Radio Interface Box

Note When installing cables insure that they are fitted with the correct orientation.

Method:

1. Remove the cover to the MX800 radio.

2. Remove mother board from chassis of radio. Note cable connection and orientation.

3. Install the CABLE IDC SKT-IDC SKT 10W 330mm cable Assy between connector SKI on the Motherboard (going under nether mother board) and SKU/B on the Option board, taking note that the cable is correctly orientated. This cable lays under the mother board. Issue cable is not crushed when refitting mother board.

10 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

4. Refit mother board to chassis. Don’t refit the four screws indicated below on the motherboard and fit Qty 4 3x20mm standoff posts in the positions where the screws where removed.

Motherboard

3x5mm machine screws to be removed

5. Punch out the RJ45 square on the rear of radio.

6. Install RJ45 daughter board in the rear of chassis, locate the RJ45 socket into punch hole. Locate mount holes over chassis stand off. Secure with 3x 3mm screws.

7. Remove the Link jumpers off Mother Board connector SKK.

8. Install the CABLE IDC SKT - IDC SKT 16W 125mm cable Assy between connector SKK on the Motherboard and SKK on the Option board.

9. Install the CABLE IDC SKT-IDC SKT 16WAY 210mm cable Assy. between connector AUX3 (SKX) on the Motherboard and SKX on the Option board. This cable will be under option PCB when mounted.

10. Install the Option Printed Circuit Board onto the 4 standoffs with the 16way connector closest to DIP2 on the Motherboard. Secure with the qty4 3x5mm machine screws previously removed.

11. Install the CABLE IDC SKT-IDC SKT 16WAY 170mm cable Assy. between connector SKH on the Motherboard and SKH on the Option board.

12. Install the CABLE IDC SKT-IDC SKT 10WAY 150mm cable Assy. between connector SKV on the Motherboard and SKV on the Option board.

13. Remove and replace CN1 with CABLE IDC DB9M-IDC SKT 10W 195mm cable Assy. Connect to SKU on the Option board.

14. Remove and replace CN4 with CABLE IDC DB15F-IDC SKT 16W 210mm cable Assy. Connect to SKH/B on the Option board.

15. Check that the option board jumpers are in the correct positions for application.

16. See the appropriate application section for Setup procedure.

1.2 2Wire or 4Wire Selection, Balanced VF

Description

Option T19 and T26 both provide the user to be able to select between 2 wire or 4 wire systems, they also both have balanced and isolated VF I/O as well as isolated E (PTT) and M (Mute) leads. The T19 has dual E&M leads, this provide a Qualified and Non-qualified M leads as well as E leads with subtones and with out subtones. The second E&M connection points are found on CN3 DB25 connector.

The E lead is opto isolated and may be asserted by applying a DC voltage between 5V and 48V with any polarity between CN9 Pins 7&8 (JMP4 & JMP5 removed).

Provision is also made to internally source or Earth (JMP4 and JMP5) so that the activation can be done Via CN9 Pin8 (+12V DC) or (GND), in which case the E lead is asserted by grounding or pulled up to 5V (depend on JMP4 & JMP5 settings) on CN9 Pin8

The M lead is relay isolated and the common and normally open contacts are brought out via CN9 Pins 5&6. The relay contacts are rated at 500mA.

Note In REV C PCB for 2 wire mode, to have the correct matching for 600R please fit a 560R resistor is in parallel to R77(above IC4) and across R130 & R129 (Right hand side of PCB above RV4)

1.3 T19 / T26 Secondary E&M leads

The MX800 T19 option board has a secondary E & M lead designated E2 and M2 respectively. Unlike the primary E & M leads that appear on both the RJ45 and DB25 connector, the E2 and M2 leads are only present on the DB25. The assertion of the E2-lead will cause the transmitter to transmit without a subtone, even if one has been programmed for the channel.

The M2-lead is used to indicate the state of the RF (unqualified) mute. The M2-lead can be programmed to close the relay contacts when the mute opens or operate in reverse. The secondary E & M leads are enabled in the hardware configuration menu (Configuration Menu -> Hardware Configuration).

The E2 and M2 Leds on front panel show the activity on these lines only if the “Glide Tone” or “Stepped Glide Tone” modes are not selected.

Front Panel Led Standard Function Glide tone Led Function. Led Position Colour (RF Signal Decision Points) 1 Amber E1 Lead, indicates status of E1 input. Level 0 signal (> 0uV) 2 Green E2 Lead, indicates status of E2 input. Level 1 signal (> 0.6uV). 3 Green N/A Level 2 signal (> 1.0uV) 4 Green N/A Level 3 signal (> 2.0uV) 5 Green M1 Lead, indicates status of M1 input. Level 4 signal (> 5.0uV) 6 Red M2 Lead, indicates status of M2 input. Level 5 signal. User defined

Table 1-1 T19/T26 Font Panel Leds

12 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

1.4 Variable & Stepped Tone Encoder

Variable tone voting is a method of conveying the received signal strength information to a central arbiter so that an informed decision can be made as to which base station will use its received audio.

There are two methods of this type of encoder, Variable tone that works by superimposing a sliding scale audio tone on the received audio at each site, and stepped tone that works by superimposing a fixed audio tones per decision block. This tone frequency being related to the received signal strength (RSSI). The tone is removed at the central site and the best audio is turned around for retransmission. This requires a VF connection between each base station and the central arbiter.

Prior to a tone being superimposed the receiver VF is notch filtered at the tone frequency.

A Second PTT function designed for mobile voting systems transmits carrier with no modulation (including no CTCSS) to allow mobiles to vote without lifting the mute in the mobile.

1.4.1 Voting Law

The table below shows the default voting decisions points programmed into the MX800 T19 / T26 option board. These are the corresponding signal points where by under control of the microprocessor to generates the appropriate audio tone.

Level 0 refers to the signal level when the mute opens and is less than Level 1. The option board incorporates a signal noise measurement circuit that needs to be calibrated for the board to perform optimally.

RF Signal Level Frequenc Decision Points (uV) y (Hz) Squelch closed N / A 2710 Level 0 signal > 0 2732 Level 1 signal > 0.6 2792 Level 2 signal > 1.0 2856 Level 3 signal > 2.0 2913 Level 4 signal > 5.0 2973

Table 1-2 Signal decision levels/points and coresponding tones.

1.4.2 Configuration

The configuration procedure for the Variable tone encoder consists of setting up the software and adjusting the noise circuit for maximum range. The configuration screen is entered via the menu system using options ‘C’ for configuration, then ‘E’ for encoder and then ‘1’ for Variable tone encoder.

When the Variable tone encoder is initially enabled it is configured with the system defaults as shown above, or a previously configured Variable tone voting law. The user can change the number of Variable tone levels, the Variable tone decision points and tone frequencies. If the user decides to change any setting all the Variable tone settings will need to be entered.

The number of levels refers to the number of decision points once the mute is opened. Level 0 is the receiver signal level when the mute just opens; use the appropriate units for the decision point. The units for the Variable tone decision points can either be in microvolt’s (uV) or decibels (dBm).

1.4.3 Adjustment

The process for adjusting the noise measurement circuit for range is to inject a signal of about 0.6uV (or approximately -111.4 dBm) into the receiver and measure the filtered noise signal on the pad between R131 and C67. The voltage should be around 0.7V, use variable resistor RV6 to adjust the gain.

The Variable tone encoder tone level can be adjusted using variable resistor RV1. This is typically –20dBm tone level.

The line output level is adjusted using variable resistor RV4, for the desired level. This is typically –10dBm audio level.

1.4.4 Calibration

Once the board has been configured for Variable tone voting, calibration is performed using screen prompts in the calibration menu. Enter using the menu system option ‘R’ for calibration then ‘N’ for noise-floor measurements. The user will then be prompted to adjust the receiver signal to match the calibration points.

After calibrating the noise floor decision points, the frequency compensation adjustments will need to be performed. This is done through the menu system using options ‘R’ then ‘C’. The user will then be prompted to turn off the receiver signal source to initiate the calculations.

14 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

1.4.5 Variable & Stepped Tone Encoder Setup Procedure

This section provides a set by step approach to enable the option board for uses as a Variable Tone encoder T26

1.4.5.1 Variable & Stepped Tone Encoder- Programming

1. Connected option Board via the Rs232 port, run terminal software. 2. Type "RMENU↵" to access inbuilt software menu. 3. Select Configuration Menu (C) 4. Select encoder Menu (E) 5. Select the type of encoder required. 6. Press the Escape Key.

1.4.5.2 Variable & Stepped Tone Encoder- RX Alignments

1. Using a 600ohm termination monitor RX line output level. This output is located on the rear of the MX800, RJ45 Line I/O connector pin 1 & 2 (balanced audio) 2. Remove JMP20 3. Set the receiver modulation frequency to 1 kHz and the FM deviation to nominal for the particular RF receiver frequency of the test channel. At a RF level of –60 dBm. 4. Adjust Line Output level RV4 to obtain nominal line output level (-10dBm is the default level). 5. Set the RF level to 0.6uV (-111.4dBm) on the comm.’s test set. 6. Using a DVM, monitor the DC volt level at junction of R131 and C67, Adjust RV6 so that DVM reads 0.7VDC. 7. Remove RF signal from receiver. 8. Insert JMP20 in positions 1-2. 9. Toggle RF signal ‘on’ and ‘off’ to ensure key tone represent mute status. 10. With the key tone present, adjust RV1 to obtain the required Variable Tone level (-20dBm is the default level). 11. Type "RMENU↵" to access inbuilt software menu. 12. Select Calibration Menu. (R) 13. Select Variable Tone Calibration points (N) 14. Follow on screen instructions. 15. Exit menu system and cycle power to radio. 16. Insure front panel signal Leds (RSSI Leds) and Key tone changes at the correct RF level points, see table above.

Note (Note# Sixth led will not light due to only 5 RF level points are used in this setup)

1.4.5.3 Variable & Stepped Tone Encoder -TX Alignments

1. PTT the transmitter. 2. Set the transmitter modulation frequency to 1 kHz, -10dBm level injected in through the rear RJ45 connector, pin3 & 4. (Balanced audio) 3. Disable Notch Filter JMP9 (Position 1-2) 4. Disable AGC on Option Board JMP13 (Position 2-3)

5. Adjust TX input line gain RV5 to obtain 1 Vp-p at IC13 pin 1.

6. Monitor TX modulation depth and insure it is equal to the nominal deviation level. If not adjust RV4 on the motherboard to obtain correct level.

1.5 Status Tone Encoding & Decoding (T19 only)

This powerful option board allow the user to be able to monitor the status of the MX800. The option works by superimposing fixed audio tones per status to line. This provides the current status on mute open or closed. This signalling is then sent down a 2 or 4 wire line system. The decoder then processes the status tones and applies the various functions as need. I.e. Programmable PTT tones, PTT ON & PTT OFF.

RX mute status tone encoder provides a signalling tone either when mute is open or when mute is closed depending upon system requirement. The signalling tone is notched out from the speech or noise components on the receiver frequency, to prevent false system decodes.

1.5.1 Status Tone Encoder & Decoder Setup Procedure

This section provides a step by step approach to enable the option board for uses as a Status Tone Encoder and Decoder.

1.5.1.1 Status Tone Encoder & Decoder- Programming

1. Connected option Board via the RS232 port, run terminal software. 2. Type "RMENU↵" to access inbuilt software menu. 3. Select Configuration Menu (C) 4. Select encoder Menu (E) 5. Select the type of encoder required. 6. Press the Escape Key. 7. Repeat steps 2 & 3 8. Select Decoder Menu (D) 9. Select (1) and enter the PTT decode tone. 10. Also enable AGC (2) And Bandpass filter (3) 11. Programming is complete.

16 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

1.5.1.2 Status Tone Encoder & Decoder -TX Alignments

1. PTT the transmitter. 2. Using a signal generator, apply a 1 kHz Tone with the line up level as required (default -10dBm), injected into the rear RJ45 connector, pin3 & 4. (Balanced audio) 3. Disable AGC on Option Board JMP13 (Position 2-3) 4. Adjust TX input line gain RV5 to obtain 1 Vp-p at IC13 pin 1. 5. Monitor TX modulation depth and insure it is equal to the nominal deviation level. If not adjust RV4 on the motherboard to obtain correct level. 6. Enable AGC by linking in Jmp13 in position [1-2] 7. Using a signal generator, apply a Key tone to Audio level @-10dB. [–10dBm0] (Default –20dBM) 8. Adjust RV7 so that the combined audio and key tone signal are set to the required onset compression level. 1Vp-p at IC13 pin 1. (JMP9 2-3) (Default compression level are, audio -20dBm and key tone signal is set to -30dBm) 9. Monitor TX modulation depth and insure it is equal to the nominal deviation level. If not adjust RV4 on the motherboard to obtain correct level.

1.5.1.3 Status Tone Encoder & Decoder- RX Alignments

1. Using a 600ohm termination monitor RX line output level. This output is located on the rear of the MX800, RJ45 Line I/O connector pin 1 & 2 (balanced audio) 2. Set the receiver modulation frequency to 1 kHz and the FM deviation to nominal for the particular RF receive frequency of the test channel. At a RF level of –60 dBm. 3. Remove JMP20 and adjust Line Output level RV4 to obtain nominal line output level (-10dBm is the default level). 4. Fit JMP20 in positions [1-2] and remove JMP7. 5. Toggle RF signal ‘on’ and ‘off’ to ensure key tone represent mute status. 6. With the key tone present, adjust RV1 so that the ratio of Key tone to Audio level is @-10dB. (–10dBm0) 7. Fit JMP7 in positions [2-3]

Two wire Mode only 8. Using an oscilloscope, monitor the audio on IC4 pin1 also insure that Pin1&2 of SK5 Terminated to a 600ohms load. 9. Adjust RV2 for minimal Audio level on IC4 pin1. (Aprox <5mV)

1.6 Five Tone Encoded / Decoder (SELCALL)

Selective Calling or SELCALL is a type of squelch protocol used in radio communications systems, in which transmissions are preceded by a brief burst of sequential audio tones. A typical application of SELCALL is for controlling the squelch of receivers based on the transmitted tone sequence. Another application of sequential tone sequences is Automatic Number Identification (ANI) where each radio in the system is assigned a unique tone sequence that is sent either on the initiation of a call (leading edge ANI) or at the end of a call (trailing edge ANI). Sequential tone sequences can also be used to remotely control other radios in the system.

Most SELCALL systems utilise a sequence of 5 tones, each of which can have any of ten frequencies, plus 2 extra frequencies for 'Group' and 'Repeat'. The SELCALL system uses the 'Repeat' character when transmitting a sequence of sequentially repeated characters, e.g. when the sequence '11122' is to be transmitted, the SELCALL encoder will translate the sequence as '1E12E' where the character 'E' is the 'Repeat' character.

1.6.1 SELCALL Tone Sets

The nominal tone durations for each SELCALL system is given in the table below:

Table 1-3 Nominal SELCALL Durations

EEA CCIR-70 ZVEI Duration CCIR System System System System Start 100 ms 70 ms 140 ms 100 ms (min) interval (min) (min) ± 15 ms Tone 40 ms 70 ms ± 10 70 ms ± 100 ms ± 10 ms Duration ± 4 ms ms 15 ms

The start interval is the minimum silence period that must be satisfied before the transmission of the SELCALL sequence. The actual silence period can vary depending on whether the radio is already transmitting. If transmission is initiated by a SELCALL sequence then the silence preamble will be extended to allow the radio and the system to settle prior to the transmission of the SELCALL sequence. The extended preamble will be user programmable and is added to the standard SELCALL silence preamble, see Changing the SELCALL transmit preamble and Changing the SELCALL acknowledge preamble. The tone frequencies assigned to each tone set implemented in the T19/T26 option board is shown inTable 1-4 Standard SELCALL Frequencies.

18 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

Table 1-4 Standard SELCALL Frequencies

ZVEI Symbol CCIR EEA ZVEI DZVEI EIA 2 0 1981 1981 2400 2400 2200 600 1 1124 1124 1060 1060 970 741 2 1197 1197 1160 1160 1060 882 3 1275 1275 1270 1270 1160 1023 4 1358 1358 1400 1400 1270 1164 5 1446 1446 1530 1530 1400 1305 6 1540 1540 1670 1670 1530 1446 7 1640 1640 1830 1830 1670 1587 8 1747 1747 2000 2000 1830 1728 9 1860 1860 2200 2200 2000 1869 Group 2400 1055 2800 885 2400 2151 (A) Repeat 2110 2110 2600 970 810 459 (E) Data Prefix 930 930 810 810 2600 2435 (B) Address Code 2247 2247 970 740 885 2010 Suffix (C) Address Code 991 991 885 680 825 2295 Suffix (D)

1.6.2 Selcall Configuration

The configuration procedure for the SELCALL module consists of selecting the desired protocol, enabling the commands and other parameters. This is done in the SELCALL menu, entered by selecting, Configuration Menu - Selective calling (SELCALL) Menu (C L).

Figure 1-2 SELCALL menu

20 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

There is support for a number of common SELCALL tone sets as well as an option to create a custom tone set. Although 12 tones are commonly used in SELCALL systems, a tone set of 15 tone frequencies is defined to allow future expansion of the protocol and system. There are currently no plans to support the hexadecimal sequential code (HSC) system. The number of symbols (tones) per SELCALL packet is selectable from 1 to 12. Tone durations have been specified nominally and tones within the allowable tolerance will be decoded. Tones not complying with the tone duration requirements will be discarded as will the SELCALL packets containing them.

The SELCALL system as implemented currently only supports fixed size packets, although the packet size is user programmable. This means that if the number of digits is set to 5, then only the SELCALL packets with 5 tones will be decoded. This is to reduce the likelihood of false decodes due to in-band audio.

The Base Station ID is the SELCALL packet that will be transmitted if the push-button on the front panel is depressed. This will cause the transmitter to key-up and send the SELCALL sequence after the protocol silence preamble.

Hardware configuration consists of setting jumper JMP20 to positions 2-3 (DCFM) and adjusting the tone level (RV1) to obtain a deviation of 2500 Hz (wideband).

1.6.3 Enabling and disabling SELCALL

The SELCALL system can be toggled using Configuration Menu - Selective Calling (SELCALL) Menu, Toggle SELCALL mode (C L 1). Once the SELCALL system is disabled, the terminal screen should look similar to this, Figure 1-3 Menu with SELCALL disabled

Figure 1-3 Menu with SELCALL disabled

1.6.4 Selecting the tone set

Once in the SELCALL menu, the tone set is selected by, Configuration Menu - Selective Calling (SELCALL) Menu - Edit SELCALL tone set (C L 2), the SELCALL tone menu will then be displayed.

Figure 1-4 SELCALL tone options

The list of tone frequencies and tone durations is given in Table 1-4 Standard SELCALL Frequencies and Table 1-3 Nominal SELCALL Durations respectively. Among the SELCALL tone set options is the choice for a custom tone set. This allows the user to specify the tone frequencies and tone durations thus supporting other less common SELCALL tone sets.

1.6.5 Configuring the SELCALL commands

The SELCALL commands menu allows the user to configure the command tone sequence and enable or disable each command. The enabling and disabling of commands is done with, Configuration Menu - Selective Calling (SELCALL) menu - Display SELCALL commands menu - Enable individual SELCALL functions (C L 7 9). The command tone sequence can then be individually defined using the appropriate menu options, e.g. '1' for 'Repeater Setup' and so forth. The command tone sequence length is defined in the 'SELCALL CONFIGURATION MENU'. Each command can be individually enabled or disabled using menu option '9'.

22 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

Figure 1-5 SELCALL commands menu

1.6.5.1 Repeater Setup

If this command is enabled, a successful decode will put the radio into the 'Repeater Setup' state. The radio will then retransmit any valid (qualified) audio. This functionality is governed by the repeater type setting, see Table 1-5 Repeater Functionality.

1.6.5.2 Repeater Knock-Down

If this command is enabled, a successful decode will put the radio into the 'Repeater Knock-Down' state. Depending on the repeater type setting, the radio will not re-transmit any valid audio.

1.6.5.3 Repeater Enable

If this command is enabled, a successful decode will enable the radio as a full repeater. This is similar to setting the radio to the 'Unconditional' repeater type and having the DIP switch DIP2-4 in the 'ON' position.

1.6.5.4 Repeater Disable

If this command is enabled, a successful decode will disable the repeater function in the radio. This is similar to setting the radio to the 'Unconditional' repeater type and not having DIP switch DIP2-4 in the 'ON' position.

1.6.5.5 Repeater Mode Toggle

If this command is enabled, a successful decode will toggle the repeater between the 'Repeater Setup' and the 'Repeater Knock-Down' states. The repeater functionality will be as described in the previous sections.

1.6.6 Changing the SELCALL transmit preamble

The SELCALL transmit preamble is the carrier preamble before the SELCALL sequence is transmitted whenever the front panel button is pushed. This delay is selectable from 0 to 65 seconds and includes the required silence preamble for the selected SELCALL protocol. This property will help to compensate for the key-up delays that may occur in a radio system.

1.6.7 Changing the SELCALL acknowledge preamble

The SELCALL acknowledge preamble is the carrier preamble before the SELCALL acknowledge sequence is transmitted for valid selcall commands. This delay is selectable from 0 to 65 seconds and includes the required silence preamble for the selected SELCALL protocol. This property will help in compensating for system delays as well as switching delays in simplex radios (mobiles).

24 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

1.7 Motorola TRICK Emulation

The Motorola Tone and Repeater Interface Control Kit (TRICK) is a module designed for tone remote, remote repeater or repeater applications. The TRICK may be used in three basic configurations:

1. Simplex base station - In this configuration, the TRICK provides a Tone Remote Control (TRC) interface between a radio and a wireline control console. 2. Semi-duplex base station / repeater - In this configuration, the TRICK provides a Tone Remote Control (TRC) interface between a radio and a wireline control console. 3. Standalone repeater - In this configuration the TRICK controls the radio in the absence of a wireline console. The TRICK has 5-tone signalling (SELCALL) capability built-in, allowing the repeater to be controlled over air.

1.7.1 Repeater States

In order to fully understand the operation of the radio under the control of the TRICK controller, a definition of the terminology involved is given below. The repeater may be in one of three states during operation: 'Knocked-Down', 'Set-Up' or 'Enabled'.

Enabled

A radio repeater is said to be in the 'Enabled' state if it re-transmits valid received audio. The repeater is enabled only for the duration of the conversation (i.e. once the Time Out Timer (TOT) or Hang Timer has expired, it will be necessary to re-enable the repeater). Depending on application, valid received audio is a signal that contains the correct subtone (CTCSS or DCS) if required by the channel.

Knocked-Down

A radio repeater is said to be in the 'Knocked-Down' state if it cannot re-transmit the received signal.

Set-Up

A radio repeater is said to be in the 'Set-Up' state if it is ready to re-transmit the received signal pending further qualification. This can include a Repeater Access Tone (RAT) and valid audio.

When the repeater is 'Set-Up' or 'Knocked-Down' using the serial terminal, an over the air acknowledge tone sequence will be sent. This is required by radios employing automatic retry (or used just to produce an audible over air confirmation of the operation).

When the repeater is 'Set-Up' and 'Knocked-Down' using over the air tone sequences, the TRICK will send the appropriate TRC command down the wireline to update the state of the wireline console. This ensures that the TRICK and wireline console states are synchronised.

1.7.2 Repeater Modes and Control

The TRICK may be programmed to support 3 types of repeater functionality. The difference between the repeater types concerns the conditions that must be met to enable re-transmission of a received signal.

Table 1-5 Repeater Functionality

Repeater 'Knocked-Down' State 'Set-Up' State Type 1: Over-the-air Set-Up by TRC or 5-tone signal. Knocked-Down by TRC or 5-tone SELCALL signal. Enabled by RAT and valid audio (qualified audio). Enabled by valid audio (qualified audio). Type 2: TRC Controlled Set-Up by Line TRC only. Knocked-Down by Line TRC only.

Cannot be Enabled - no repeater Enabled by RAT and valid audio function. (qualified audio). Type 3: Unconditional Cannot be set up. Enabled by valid audio (qualified audio).

1.7.2.1 Type 1: Over-the-air SELCALL

The repeater may be set-up or knocked-down by over the air TRC or SELCALL tone sequences only. When the repeater is knocked-down, reception of the RAT and valid audio will enable the repeater. When the repeater is set-up, it can be enabled purely by the valid audio signal.

1.7.2.2 Type 2: TRC Controlled

This repeater may only be set-up and knocked-down by the wireline TRC console. The repeater may only be enabled when in the set-up mode and the RAT is received. The RAT is always needed, even when the repeater is set-up.

When in knocked-down mode, the only transmission possible will be using wireline PTT commands. No repeater function.

1.7.2.3 Type 3: Unconditional

The repeater mode is controlled by the state of DIP switch DIP2-4 (DIP switch DIP2, switch position 4) and the channel definition in MXTOOLS, see MXTOOLS channel information. To set the radio into repeater mode, DIP switch DIP2-4 should be set to 'ON' and the RF mode for the channel be set to 'TTR Channel' in MXTOOLS, see MXTOOLS channel RF mode. Repeater mode is enabled only the channel is a TTR (Talk through Repeater) channel and DIP2-4 is on.

26 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

Figure 1-6 MXTOOLS channel information

Figure 1-7 MXTOOLS channel RF mode

1.7.2.4 Encoders

Three 5-tone encoders are supported. Each encoder may be configured to encode telegrams with lengths between 1 and 11 individual tones. The three encoders support the following functions:

• Disconnect

This encoder is used to send over air notification of call termination.

• Acknowledge

This encoder is programmed to acknowledge that a received 5-tone telegram has been decoded.

• Alarm

If configured, this encoder sends a telegram when alarm conditions occur.

1.7.2.5 Decoders

Four 5-tone decoders are supported. Each decoder maybe configured to decode telegrams with lengths between 1 and 11 individual tones. Each decoder may be assigned to one of the following functions:

• Repeater Set-Up • Repeater Knock-Down • Repeater Set-Up / Knock-Down Toggle • Repeater Enable • Repeater Disable

It is possible to configure the TRICK to send a 5-tone acknowledgement when a received telegram has been decoded.

1.7.2.6 TRICK Timers

There are a number of timers in the TRICK that enhance and control its operation.

28 © SPECTRA ENGINEERING 2010 Revision 1.0.4 Technical Manual MX800 Transceiver T19 Option

1.7.3 Tone Remote Control

Tone Remote Control (TRC) is a Motorola control sequence used in keying transmitters. The TRC sequence comprises three basic elements: High Level Guard Tone (HLGT), Function Tone (FT), and Low Level Guard Tone (LLGT). The TRC sequence follows an audio level convention whereby the FT is 10 dB below the HLGT and the LLGT is 30 dB below the HLGT. The relative audio levels of the HLGT, FT and LLGT are usually referenced to a system Test Tone level. This Test Tone is defined as a 1000 Hz signal sent from the controller at the system operating level by which the transmitters are aligned to produce nominal analog transmit deviation (3 kHz deviation for a wideband radio). Relative to the Test Tone, the HLGT is 5 dB above the Test Tone, the FT is 5 dB below the Test Tone and the LLGT is 25 dB below the Test Tone. The tone durations are 120 ms for the HLGT, 40 ms for the FT and the LLGT is a continuous tone. The LLGT occurs only in the "Transmit On" function. The transmitter stays keyed so long as this tone is present and only if this tone was preceded by the proper tone sequence.

The HLGT (commonly 2175 Hz) is a tone that indicates the start of a TRC control sequence. The FT is used to tell the transmitter on what frequency channel to key or is used to define other functions to be performed. FT values range from 750 Hz to 2350 Hz in 100 Hz steps (excluding 2150 Hz and 2050 Hz). The 1950 Hz function tone is the standard key on Channel 1 frequency. As previously mentioned, the LLGT is to tell the transmitter to key up.

Both the HLGT and the LLGT can be collectively called the Guard Tone (GT) and must have the same frequency. There are several choices for the GT, depending on the enforced tone standards, 2175 Hz (commonly used in US systems), 2100 Hz (5-tone ZVEI), and 2325 Hz (5-tone CCIR / EEA).

Table 5.1. Tone Remote Control Frequencies

Frequenc Single Channel Base Two Channel Base Four Channel Base Eight Channel Base y (Hz) (T1R1) (T2R2) (T4R4) (T8R8) 2050 Monitor Monitor Monitor Monitor 1950 Transmit on Channel 1 Transmit on Channel Transmit on Channel Transmit on Channel with subtone 1 with subtone 1 with subtone 1 with subtone 1850 Transmit on Channel 1 Transmit on Channel Transmit on Channel Transmit on Channel without subtone 2 with subtone 2 with subtone 2 with subtone 1750 Reserved for second Reserved for second Reserved for second Transmit on Channel receiver receiver receiver 7 with subtone 1650 Reserved for second Reserved for second Reserved for second Transmit on Channel receiver receiver receiver 8 with subtone 1550 Repeater disable Repeater disable Repeater disable Repeater disable 1450 Repeater enable Repeater enable Repeater enable Repeater enable 1350 Wildcard 1 on Wildcard 1 on Transmit on Channel Transmit on Channel 3 with subtone 3 with subtone

Frequenc Single Channel Base Two Channel Base Four Channel Base Eight Channel Base y (Hz) (T1R1) (T2R2) (T4R4) (T8R8) 1250 Wildcard 1 off Wildcard 1 off Transmit on Channel Transmit on Channel 4 with subtone 4 with subtone 1150 Wildcard 2 on Wildcard 2 on Wildcard 2 on Transmit on Channel 5 with subtone 1050 Wildcard 2 off Wildcard 2 off Wildcard 2 off Transmit on Channel 6 with subtone

Table 5.2. Guard Tone Frequencies

5-tone System Guard Tone Frequency Std, French & Modified ZVEI 2100 Hz 70 & 100 ms CCIR, EEA 2325 Hz US Standards 2175 Hz

1.7.4 Default Configuration

While the T19/T26 menu system may offer flexibility in the configuration of the functions associated to the defined function tone frequencies, the system default configuration has been selected to allow the best compatibility with other third party wire line consoles. The table below shows the default configuration, when selecting Tone remote control in the decode configuration screen.

Table 5.3. Default Tone Remote Configuration

Function Tone Monitor 2050 Hz Transmit on Channel 1 with subtone 1950 Hz Transmit on Channel 2 with subtone 1850 Hz Transmit on Channel 3 with subtone 1350 Hz Transmit on Channel 4 with subtone 1250 Hz Repeater 'Knock-Down' 1550 Hz Repeater 'Set-Up' 1450 Hz Transmit on Channel 5 with subtone 1150 Hz Transmit on Channel 6 with subtone 1050 Hz Transmit on Channel 7 with subtone 1750 Hz Transmit on Channel 8 with subtone 1650 Hz Guard Tone 2175 Hz

1.7.5 Tone Remote Control Setup Procedure

Note The tone durations are 120 ms for the HLGT, 40 ms for the FT and the LLGT is a continuous tone. The LLGT occurs only in the "Transmit On" function. The transmitter stays keyed so long as this tone is present and only if this tone was preceded by the proper tone sequence. If T14 option is fitted (front panel channel selector) it must be set to 00 for TRC channel steering. Disabled Display function tone message, to enable Mxtools Diagnostics to operate correctly.

1.7.5.1 Tone Remote Control Setup - Programming

1. Connected option Board via the RS232 port, run PC terminal software.

2. Type "RMENUfl" to access inbuilt software menu.

3. Select Configuration Menu (C). 4. Select Decoder Menu (D). 5. Select (2) AGC Enable. 6. Select (3) AGC tone band-pass filtered.

7. Select (4) Tone remote control. 8. ESC. 9. Select Configuration Menu (C). 10. Select Hardware Menu (H).

11. Select (6) Repeater Mode. 12. TRC line controlled (C). 13.ESC. 14.ESC.

15. Programming is complete.

1.7.5.2 Tone Remote Control Setup -TX Alignments

Note For ease of alignment program the decoder in step 5 above, to (1) Tone PTT decoder. * Remember to change back to (4) Tone remote control after adjustments.

1. PTT the transmitter. 2. Disable AGC on Option Board (JMP13 Position 2-3) and set Notch filter on (JMP9 2-3) 3. Using a signal generator, apply a 1 kHz Tone with the line up level as required (default -10dBm), injected into the rear RJ45 connector, pin3 & 4. (Balanced audio). 5. Adjust TX input line gain RV5 to obtain 1 Vp-p at IC13 pin 1. 6. Monitor TX modulation depth and insure it is equal to the nominal deviation level. If not adjust RV4 on the motherboard to obtain correct level. 7. Enable AGC by linking in Jmp13 in position [1-2] 8. Using a signal generator, apply a Key tone to Audio level @-10dB. [–10dBm0] (Default –20dBM) 9. Adjust RV7 so that the combined audio and key tone signal are set to the required onset compression level. 1Vp-p at IC13 pin 1. (JMP9 2-3) (Default compression level are, audio -20dBm and key tone signal is set to - 30dBm)

10. Monitor TX modulation depth and insure it is equal to the nominal deviation level. If not adjust RV4 on the motherboard to obtain correct level. 11. Generate Tone Remote Control (TRC) tone sequence and ensure it keys the Transmitter.

1.7.5.3 Tone Remote Control Setup- RX Alignments

1. Using a 600ohm termination monitor RX line output level. This output is located on the rear of the MX800, RJ45 Line I/O connector pin 1 & 2 (balanced audio)

2. Set the receiver modulation frequency to 1 kHz and the FM deviation to nominal for the particular RF receive frequency of the test channel. At a RF level of –60 dBm.

3. Adjust Line Output level RV4 to obtain nominal line output level (Default –10dBM).

1.8 RX Line Output Frequency Compensation

This feature provides Line Output Frequency Compensation on the 4-Wire port (CN9). Any substantial low or high frequency signal attenuation can be compensated for, by configuring the 2 Shelf equalizers. The Equalizer is configured by adjusting switches on an 8-Way DIP switch (Dip1). The Equalizer can be enabled or disabled by the setting of JMP6. The switches provide

Table 1-6 Line Equalizer Settings

DIP Switch Type Approximate Gain 1 Low Shelf (400Hz) +0dB 2 Low Shelf (400Hz) +3dB 3 Low Shelf (400Hz) +6dB 4 Low Shelf (400Hz) +9dB 5 High Shelf (2500Hz) +0dB 6 High Shelf (2500Hz) +3dB 7 High Shelf (2500Hz) +6dB 8 High Shelf (2500Hz) +9dB

Figure 1-8 Line Equalizer Response Graph

1.9 T19/26 Pin outs

CN3 Pin No Function 11 M2 Lead 24 M2 Lead normally open 25 E2 lead A 12 E2 lead B 13 ETH/ +5V (Set via MX800 JMP15) 1 600ohm balanced RX VF leg a 14 600ohm balanced RX VF leg b 2 600ohm balanced TX VF leg a 15 600ohm balanced TX VF leg b 3 M1 Lead common 16 M1 Lead normally open 4 E1 Lead leg a/M lead normally closed 17 E1 Lead leg b 21 INPUT PORT B. BCD Channel Select Units bit 0. / Binary Bit 0. 8 INPUT PORT B. BCD Channel Select Units bit 1. / Binary Bit 1. 20 INPUT PORT B. BCD Channel Select Units bit 2. / Binary Bit 2. 7 INPUT PORT B. BCD Channel Select Units bit 3. / Binary Bit 3. 19 INPUT PORT B. BCD Channel Select Tens bit 0. / Binary Bit 4. 6 INPUT PORT B. BCD Channel Select Tens bit 1. / Binary Bit 5. 18 INPUT PORT B. BCD Channel Select Tens bit 2. / Binary Bit 6. 5 INPUT PORT B. BCD Channel Select Tens bit 3. / Binary Bit 7.

Table 1-7 CN3 Connections

Figure 1-9 CN3 Pin-out Detail (View from Rear of MX800)

Pin No Function 1 600ohm balanced RX VF leg a 2 600ohm balanced RX VF leg b 3 600ohm balanced TX VF leg a 4 600ohm balanced TX VF leg b 5 M1 Lead common 6 M1 Lead normally open 7 E1 Lead leg a/M lead normally closed 8 E1 Lead leg b

Table 1-8 CN9 Connections

1 ...... 8

Figure 1-10 CN9 RJ45 Pin-out Detail (View from Rear of MX800)

1.10 T19/T26 Jumper Settings

JMP Jumper description Default Jumper Position Number For T19/T26 JMP1* Decoder select 2-3 JMP2 M1 Source jumper N/F (Unlinked) JMP3 M2 Source jumper N/F (Unlinked) JMP4 E2 Source jumper N/F (Unlinked) JMP5 E1 Source jumper N/F (Unlinked) JMP6 RX Line compensation 1-2 IN/OUT JMP7 RX Low pass filter IN/OUT 2-3 JMP8 RX Notch filter IN/OUT 1-2 JMP9 TX Notch filter IN/OUT 1-2 JMP10 2W/4W Selection 1-2 (4Wire mode) JMP11 2W/4W Selection 1-2 (4Wire mode) JMP12 2W/4W Selection 1-2 (4Wire mode) JMP13 AGC IN/OUT 2-3 JMP14 High Pass Filter IN/OUT 2-3 JMP15 2W/4W Selection 1-2 (4Wire mode) JMP16 2W Isolation Balance N/F (Unlinked) JMP17 2W Isolation Balance N/F (Unlinked) JMP18 2W Isolation Balance N/F (Unlinked) JMP19 2W Isolation Balance N/F (Unlinked) JMP20 Tone Generation path 1-2 JMP21 CNVSS Connected (CNVSS) JMP22 2W/4W Selection 1-2 (4Wire mode) JMP23 2W/4W Selection 1-2 (4Wire mode) JMP24 4W Selection Linked JMP25 4W Selection Linked JMP26 RX DISC Audio Break Point 1-2 JMP27 TX Audio Break Point Connected JMP28 AGC Ratio NF (Unlinked) JMP29 RS232 2-3 (Swap) JMP30 RS232 2-3 (Swap) JMP31 D-A Section path RX/TX N/F (Unlinked) * Not fitted on > REV H PCB’s

Table 1-9 T19/26 Factory Default Jumper Setting.

2. Software Menu System

The T19 / T26 option board has a inbuilt software menu system which is used to configure, calibrate and test the board. The menu system is entered through a terminal emulator program. The serial communications settings are 9600-baud, no parity, 8 data bits and 1 stop bit. HyperTerminal, which is included with all Windows versions, is suitable for communicating with the T19/T26 option board.

The software menu system can be entered by sending the RMENU command (not case sensitive) on the terminal. The user will then be presented with a menu system from which various settings and configurations can be selected. To exit the menu system the key can be pressed.

Figure 2-1 T19/T26 Main Software menu

2.1.1 Configuration Menu

Figure 2-2 T19/T26 configuration menu

2.1.1 Encoder Configuration Menu

Figure 2-3 T19/T26 Encoder configuration menu

2.1.2 Hardware Configuration Menu

Figure 2-4 T19/T26 Hardware configuration menu

2.1.1 DTMF Configuration Menu

Figure 2-5 T19/T26 DTMF configuration menu

2.1.2 Decoder Configuration Menu

Figure 2-6 T19/T26 Decoder configuration menu

2.1.3 Tone Remote Control Configuration Menu

Note

The Tone Remote Control Decoder must be enabled under the decoder configuration menu first. Disabled Display function tone message, to enable Mxtools Diagnostics to operate correctly.

Figure 2-7 T19/T26 Tone Remote Control configuration menu

2.1.1 Selcall Configuration Menu

Figure 2-8 T19/T26 Selcall configuration menu

2.1.2 Diagnostics Menu

The only function available in the diagnostics menu is the ability to restore the configuration settings back to the factory default. This allows the user to restore the T19/T26 board to a known good state.

Figure 2-9 T19/T26 diagnostics menu

Note Although the software configuration is restored with this menu option, the physical jumpers on the board are unaltered.

2.1.3 Calibration Menu

Figure 2-10 Calibration Menu

3. Setting up HyperTerminal

HyperTerminal is a terminal emulation program and a reduced capability version is included with all versions of Windows. This version is suitable for all the setup and configuration procedures described in this document.

Creating a HyperTerminal connection

1. Start the HyperTerminal program by selecting, Start + Programs ’ Accessories ’ Communications ’ HyperTerminal

If starting HyperTerminal for the first time, it will ask you to create a new connection. Name the connection using a relevant name. Then click OK.

Figure 3-1 HyperTerminal connection description

2. Next you will need to set the communication parameters for the COM port you will be using. Then click OK.

Figure 3-2 HyperTerminal COM port selection

3. Set the port settings as shown in, HyperTerminal communication parameters below.

Figure 3-3 HyperTerminal communication parameters

4. Click OK 5. You have now created your connection. We will now configure the terminal emulation. 6. Click on the Disconnect or use the Call, then Disconnect.

Figure 3-4 HyperTerminal disconnect

7. In the File menu select Properties.

Figure 3-5 HyperTerminal connection properties

8. Click on the Settings tab. Set up the parameters as shown in , HyperTerminal terminal settings below.

Figure 3-6 HyperTerminal terminal settings

9. Now we need to perform the ASCII setup for the terminal emulation. Click on the ASCII Setup... button. Set up the ASCII settings using HyperTerminal ASCII setup below as a guide.

Figure 3-7 HyperTerminal ASCII setup

10. Click OK. 11. On the File menu, select Save As... to save the current connection setup for future use. 12. You are now ready to program the T19/T26 option board. The subsequent pages will show how to setup and configure the various functions available in the T19/T26 option board.

4. Firmware Upgrade

This chapter outlines the firmware upgrade procedure for the T19 / T26 option boards. The option boards use flash memory based microcontrollers whose firmware can be upgraded using the serial port of the MX800 series radios. This will allow the user to take advantage of new features in the latest software releases.

The Universal Line Interface Board T19 Firmware upgrade file can be downloaded at http://www.spectraeng.com.au/mx800-docs.shtml

4.1 Upgrade Procedure

The T19 / T26 option board has a bootloader program that is activated on power-up of the MX800 radio. The bootloader selects between normal and monitor mode operation depending on the state of the push- button switch on the front panel of the MX800 radio at reset (or power-up). If the push-button switch is depressed at reset the bootloader will enter monitor mode.

Here is a list of items required to complete this procedure:

• PC with a serial terminal program installed • MX800 with a T19/T26 option board installed • MXTOOLS serial communications cable • 13.8V DC power supply

The HyperTerminal program that usually comes installed in the Windows operating system can be used for the firmware upgrade process.

4.1.1 Upgrade Steps

Note The MX800 normally communicates at a baud rate of 9600, however the T19/T26 bootloader communicates at a baud rate of 57600. It is useful to have two instances of HyperTerminal running, one with a baud rate of 9600 and the other with a baud rate of 57600. Create another HyperTerminal connection with a baud rate of 57600 (Bits per second) using Setting up HyperTerminal as a guide.

1. Connect to the T19/T26 option board using the connection configuration of 57600 baud. Press and hold the T19/T26 push button on the front panel while cycling the power to the radio. The T19/T26 board will enter the bootloader mode similar to T19/T26 Bootloader prompt below.

Figure 4-1 T19/T26 Bootloader prompt

2. Enter the command LOADE. The bootloader will prompt the user to send the firmware file. Use the HyperTerminal menu 'Transfer' then 'Send file ...' to upload the firmware file to theT19/T26 option board. 3. Select the 'Xmodem' protocol for the file transfer and enter the name of the firmware file to be transferred. The user will have approximately 15 seconds to complete this step. If the character 'C' is received before the file transfer starts, hit the key after the Xmodem file transfer diaglog box appears. This will cancel the transfer but should preserve the file path. Steps 2 and 3 can be repeated to initiate a successful file transfer. LEDs 3 and 4 will flash as the file transfer progresses. 4. Once the transfer is completed, the file transfer status will be displayed and the monitor command prompt will appear. Disconnect the HyperTerminal connection to the T19/T26 board. 5. Connect to the T19/T26 board using a 9600 baud HyperTerminal connection. Cycle the power to begin operation with the newly loaded firmware.

Steps 2 to 4 can be repeated if the user could not complete the file transfer process within the allotted time.

5. PCB Overlay

Figure 0-1 T19/T26 PCB Overlay