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TEDA-2

2-Tone Sequential Decoder/Encoder with ANI, Man down and Lone workerWire-in Module

Manual Revision: 2018-03-23 Rev E

Covers Software Revisions: TEDA-2: V 1.80

Covers Hardware Revisions: TEDA-2: Rev E

TEDA-2 plug-in modules are available for most Motorola, Kenwood, Icom, Vertex, Hytera, Simoco, Datron and Tait radios. Also available in a speaker microphone configuration.

2

HARDWARE SPECIFICATIONS

Operating Voltage 4.75-9.5 VDC Operating Current

Power Save Mode (COR Operation) 2.5 mA typical Power Save Mode (VOX Operation) 10 mA typical Normal Operation 17.5 mA typical Average w/COR Power Save (80-10-10 cycle) <5 mA Average w/COR Power Save (90-5-5 cycle) <4 mA

Operating Temperature -30 - +60 CFrequency Response 250-3500 Hz

Input Impedance >45 kΩInput Level (TX) 0.05-2.5 VPP Input Level (RX) 0.05-2.5 VPP Audio Output Impedance < 1200 Ohm

General Information

The TEDA-2 is a 2-Tone decoder/encoder capable of decoding/encoding Motorola Quick Call 2, Plectron, GE type 99, and Reach 2-Tone sequential formats. It’s also capable of Multi-format ANI with optional Man-down/Lone Worker Emergency ANI (ENI).

Decoder Features: Decodes up to four 2-Tone sequences from 250hz to 3500hz PC programmable 1st and 2nd tone frequencies including time and gap PC programmable 1st and 2nd tone times with gap PC programmable group call timing, up to 10 seconds 6 programmable ring tones with number of rings programmable from 1 to 30 times Programmable horn honk timer with programmable pulsing (not available on all models) Programmable deadbeat disable/re-enable, horn activate/de-activate, squelch/un-squelch and transpond with ANI

Encoder Features:

Encode any of the four decode registers using a momentary mode button to step through the registers.

ANI Features: The TEDA-2 offers ANI & Emergency ANI in Motorola’s MDC-1200, Kenwood’s FleetSync, Harris’ G-Star (aka GE-Star), DTMF and 5-tone (all formats). The TEDA-2 can be used with Midian’s ADD, CAD, DDU and TRC Series products for monitoring ANI and ENI transmissions. Leading or trailing PTT ANI: • MDC-1200• FleetSync• G Star• DTMF• 5-Tone - CCIR, EEA, EIA, ZVEI, DZVI, DDZVI, NATEL, MODAT, EURO Signal

The TEDA-2 also offers optional Lone Worker and Man-Down features using an on board accelerometer. If the unit does not receive any user interaction (PTT button, Lone Worker Reset button or movement) for a programmable period of time the module can key the radio and send the Emergency ANI and cause the radio to emit emergency tones from its speaker to help rescuers find the radio user in the case of an emergency. If these features are desired they must be specified at the time of order.

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HARDWARE INSTALLATION

Be certain to follow standard anti-static procedures when handling any of Midian’s products. For all diode protected inputs (i.e. PTT Input, Mode Input, COR Input) the voltage level required for a logic low is less than 0.5 V and a logic high requires at least 2.1 V. P1 – Connector Side P1-1 – Green – PTT Input – Disconnect the line coming from the radio’s PTT switch. Connect the PTT Input lead to the PTT switch. If you do not break the PTT line the unit must be programmed for common PTT. See P1-9. P1-2 – Red – VIN +4.75-9.5 VDC – Connect to switched power in the radio. Keep this lead as short as possible. P1-3 – Brown –Mode Select – Connect to a momentary switch to turn on and off the Lone Worker feature and for use as the Lone Worker reset or encode register selection. P1-4 – Black – Ground – Connect to the nearest ground plane in the radio. P1-5 – Blue – TX Audio In – The unit must be installed in the TX audio path between the microphone & the insertion point of CTCSS or signaling. Break the TX audio path & connect to the side nearest the microphone. P1-6 – Orange – Emergency Input – Connect to a switch, that when grounded or taken high (depending on programing) will activate the emergency alert and ENI. P1-7 – Yellow – RX Audio In – The unit must be installed in the receive audio path after the CTCSS high pass filter and where signaling is picked off. This point needs to be given a constant level. If possible connect to the high-side of the volume control. Connect to the source of the audio at the break. If very low or very high frequencies are being decoded(<300Hz or >2700Hz) this input may need to be connected to discriminator audio. P1-8 – Green/White – Audio Enable Out - This output is active whenever the unit beeps such as when indicating mode. Connect this lead to a point in the radio, which will turn on the radio’s speaker power amp, allowing beep tones to be heard. P1-9 – White – PTT Out – Connect to the wire removed from the switch mentioned above (see P1-1). PTT Output should be connected even when using common PTT mode. P1-10 – Gray/White – RX Audio Out – Connect to the side closest to the receiver's speaker driver amplifier at the above mentioned break point (see P1-7). In addition to outputting receive audio, this lead outputs beep tones whenever applicable, such as when the mode switch is pressed. P1-11 – Gray - Mode Out – Future use. P1-12 – Orange/White – TX Audio Out – Connect to the point nearest the modulator at the above-mentioned breakpoint (see P1-5). If very low or very high frequencies are being encoded(<300Hz or >2700Hz) this input may need to be connected to a flat TX input. P1-13 – Violet – COR Input – Connect to a point in the receiver squelch circuit that changes state with carrier present. P2 – Non-Connector Side P2-1 – Program Input – Connect the green clip lead from the KL-4F programmer to this point or the “PI” pad. P2-8 – Monitor/LTR Input – This input is for use as a trunking delay input. Connect this input to a point in the radio that goes low or high when a channel is acquired. Program the unit with the active polarity. P2-12 – Program Output – Connect the yellow clip lead from the KL-4F programmer to this point or the “PO” pad.

4

PRODUCT PROGRAMMING

Midian’s TEDA-2 is programmed via Midian’s KL-4F. Please reference the KL-4 manual for setup instructions of the KL-4 hardware.

KL4-F USB PORT ASSIGNMENT and SOFTWARE INSTALLATION

Go to our website midians.com and under downloads> software download the latest MPS software version. If using the supplied CD-ROM insert it into the PC’s CD-ROM drive. In the browser that will pop-up, install the MPS programming software. Be certain that the “Install KL-4 USB Driver” box is checked during the installation process.

Open Windows’ Control Panel and go to Device Manager.

Open Ports (COM& LPT) to identify the port assignment issued by computer. Plug in the KL4 programmer to the USB port and the screen will flash and show the device location.

Open the software and choose product from product tree then set appropriate comport selection in the MPS software as needed, from the product selection screen on the programming software, select the appropriate product from the list and click OK. Set the parameters of the TEDA-2 software to fit the application. If any clarifications on a feature are required, move the mouse cursor over the feature name until the question mark appears and right click, a definition of the feature will be shown.

After the latest MPS has been installed default programming files for specific radio models can be found at: C:\Apps\Midian\MPS\MPS_vX_xx\Additional Default Files\ TEDA-2

KL-4 Programming: The Yellow and Green KL-4 leads need to be connected to the unit for programming. Connect the green KL-4 lead to the “PI” hole*, connect the yellow KL-4 lead to the “PO” hole* on the unit. The black lead does not need to be connected when using the KL-4. Plug the board into the P4 connector on the KL-4 using the 13 pin pigtail cable. Push and hold the power button on the KL-4 and wait three seconds, then click “Program Unit” in the MPS software.

KL-4 Reading: The Yellow and Green KL-4 leads need to be connected to the unit for reading. Connect the green KL-4 lead to the “PI” hole*, connect the yellow KL-4 lead to the “PO” hole* on the unit. The black lead does not need to be connected when using the KL-4. Plug the board into the P4 connector on the KL-4 using the 13 pin pigtail cable. Push and hold the power button down on the KL-4 and wait three seconds, then click “Read Unit” in the MPS software.

Programming Note: Upon power up the unit will be awake for 15 seconds before going into Power Save mode. Reading or writing to the board is not possible in power save mode.

*Please reference the pictorial at the end this manual for location of programming connections.

5

AUDIO LEVELS ALIGNMENT

This section describes how to determine and set the audio levels.

Audio Levels Overview:

To ensure the best audio quality, the unit must be configured to match the audio levels used by the radio. The unit uses programmable gain amplifiers to accomplish this. Determining the gain settings for these amplifiers is an involved process, so Midian simplified this process by developing an algorithm that requires the technician to make only four voltage measurements. From these four measurements, all of the many internal settings are determined.

Still, getting the best audio quality will likely require a bit of trial and error. The unit only has control of audio voltage levels, not input and output impedances. These impedances can dramatically influence the levels.

The Four Voltage Measurements:

An oscilloscope and a communications test set/service monitor are required for the measurements. It is recommended that the measurements be recorded in units of mV peak-to-peak. Each measurement must be taken with system modulation at either 60% or 100%, but Midian recommends using 60%.

A method for controlling transmit modulation is required for accurate measurements in the TX mode. A small speaker held in place near the microphone by a rubber band can serve this purpose in most cases. Use a sine-wave generator to inject a 1000 Hz tone into the speaker. Adjust the output of the sine wave generator so that the transmitter produces 60% of rated modulation while PTT is pressed. Note that if the audio source (such as a speaker) is moved even slightly, the TX modulation may change significantly. Care must be taken to avoid changing the TX modulation while taking the measurements.

The first two measurements must be taken using a radio that has not been modified. The 2nd

two measurementsrequire that the unit is installed and power is applied to the radio/unit. These measurements must be taken within 15 seconds of powering the unit on. This is because the unit may enter power saving mode after that time. Measurements made while the unit is in power saving mode will not be valid. The unit ships with the power save feature enabled by default. The power save feature can be disabled via the MPS software so that it will not interfere with taking measurements, if desired. Please note that the levels provided to the option board are different between narrow band and wide band.

1. RX Output: The goal of this procedure is to determine the audio level that would normally appear at the RXaudio insertion point in an unmodified radio. Modulate a 1000 Hz tone at 60%. Measure the voltage levelappearing on the output side of the component that will be removed to break the RX audio path.

2. TX Output: The goal of this procedure is to determine the audio level that would normally appear at the TXaudio insertion point in an unmodified radio. Provide the radio an audio source generating a 1000 Hz tone andkey the radio. Adjust the audio source such that the modulation is at 60%. Measure the voltage levelappearing on the output side of the component that will be removed to break theTX audio path.

3. RX Input: The goal of this procedure is to determine the audio level that the unit will see at the RX audiopickup point after it is installed. This requires a partial installation of the unit, even if only temporary.

The unit must be powered-on while making this measurement, so the power input leads of the unit must beconnected to a switched power source within the radio. Also, the component that will need to be removed tobreak the RX audio path must be removed. The unit’s RX input wire must be connected to the RX audiopickup point. Modulate a 1000 Hz tone at 60%. Measure the audio level at RX audio pickup point.

4. TX Input: The goal of this procedure is to determine the audio level that the unit will see at the TX audiopickup point after it is installed. This requires a partial installation of the unit, even if only temporary.

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The unit must be powered-on while making this measurement, so the power input leads of the unit must be connected to a switched power source within the radio. Also, the component that will need to be removed to break the TX audio path must be removed. The unit’s TX input wire must be connected to the TX audio pickup point. Provide the radio an audio source generating a 1000 Hz tone and key the radio. Adjust the audio source such that the modulation is at 60%. Measure the audio level at the TX audio pickup point.

Programming the Audio Levels:

After determining the audio levels at the audio hookup points, it will be necessary to program the unit to match these levels. In the programming software, there is a slider control on the Audio Levels Screen for each of the of four audio hookup points. Locate the column that corresponds to the modulation and units of measurement for each of the audio hookup points. Adjust the slider bar such that the value appearing in the appropriate column matches what was measured as closely as possible.

RADIO PROGRAMMING

Any radio specific programming instructions will be found in any available application notes.

OPERATION

ANI Encode: When the PTT button is pressed, the unit will assert the PTT Output and send the programmed ANI tones out the TX Tone Output.

ENI Encode: When the Emergency input is activated, the unit will assert the PTT Output and send the programmed Emergency ANI tones out the TX Tone Output.

Lone Worker Enable: The Lone Worker feature can be enabled upon power up or using the Mode Input or Emergency Input.

Lone Worker Reset: If the Lone Worker feature is being used, pressing the PTT or pressing the button assigned to Lone Worker Reset will reset the Transmit Delay timer. If the Warning Tone Delay time expires the unit will generate warning tones to indicate to the user that the Lone Worker feature is about to send an ENI if the unit does not see PTT or Lone Worker Reset activity. If the Transmit Delay time then expires the unit will send the ENI.

Page Out Select - Press this button to select the tone sequence to encode and arm the encoder. One of up to four tone sequences may be selected. The actual number will depend on the Number ofDecodes / Encodes enabled. The first time the button is pressed, one beep will be heard indicating tone sequence #1. Upon the 2nd press, two beeps will be heard indicating #2 and so on. When the number of beeps corresponding to the desired tone sequence is heard, press PTT to send the page. After paging out, the encoder is disarmed and PTT operation returns to normal. If after pressing Page Out Select it is desired to disarm the encoder without sending a page, it will be necessary to turn the radio off and back on again.

TECHNICAL NOTES

Radio Compatibility: Midian has taken the utmost care to ensure the option board integrates into the radio with minimal impact to the features of the radio. However, some features may not be available in the radio when an option board is used. If a feature is not available, please contact Midian to see if the feature can be added.

Schematic and board layout: For the placement of parts on the TEDA-2 please use the TS-120 in the product table shown in the schematic and board layout.

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MIDIAN CONTACT INFORMATION

MIDIAN ELECTRONICS, INC.

2030 N. Forbes Blvd. #101 Tucson, Arizona 85745 USA

Toll-Free: 1-800-MIDIANS Main: 520-884-7981 E-mail: sales@midians.comWeb: www.midians.com

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