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48

Programmable I/O Lines

TM8000 3DK Hardware Developer’s Kit

Application Manual

September 2003

© Tait Electronics Ltd

3.1.6

External PTT 1 and 2

Application

This input signal is used to configure an input line as an external PTT. Up
to two external PTT input lines can be assigned using the auxiliary and the
internal options connectors. All PTT lines may be active at any time, and
the PTT line with the highest priority controls the audio path. For more
information on PTT refer to the online help of the programming
application.

Configuration

Configure an input line and associate it with this action. Set the active state
(high or low) and the debounce time (0 to 100ms).

Timing

The response time is less than 8ms to 90% of full power plus debounce time.

Description

When the input line is activated, the radio executes the PTT operation.

If the '

Toggle Tx RF Inhibit

' or ‘

’ actions are active, no action

will result. If ‘

Toggle Tx RF Inhibit

’ or ‘

’ action is activated

within 300µs following an activation of Activate External PTT action, the
external PTT action will not be initiated.

If the input line is active while the radio is powered up, it must be re-applied
for the action to be carried out.

Related Actions

The ‘

Reflected PTT Status

’ reports the PTT status by generating a logic

OR of all PTT sources programmed to reflect their status.

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Содержание TM8000 Series

Страница 1: ...TM8000 mobiles TM8000 3DK Hardware Developer s Kit Application Manual MMAA30 01 00 807 Version 1 01a TEA September 2003 Tait Electronics Ltd ...

Страница 2: ... Latin America Tait Latin America E mail latinamerica taitworld com Tait Europe Regional Head Office United Kingdom Tait Mobile Radio Ltd E mail teusales tait co uk Tait North Asia Regional Head Office Hong Kong Tait Mobile Radio Hong Kong Ltd E mail hongkong taitworld com Beijing Tait Mobile Radio Hong Kong Ltd E mail beijing taitworld com Tait South Asia Regional Head Office Singapore Tait Elect...

Страница 3: ...BLE ANY SOFTWARE OR FIRMWARE IN WHOLE OR PART Title to Software THIS AGREEMENT DOES NOT CONSTITUTE A CONTRACT OF SALE IN RELATION TO THE SOFTWARE OR FIRMWARE SUPPLIED TO THE LICENSEE NOT WITHSTANDING THE LICENSEE MAY OWN THE MAGNETIC OR OTHER PHYSICAL MEDIA ON WHICH THE SOFTWARE OR FIRMWARE WAS ORIGINALLY SUPPLIED OR HAS SUBSEQUENTLY BEEN RECORDED OR FIXED IT IS A FUNDAMENTAL TERM OF THIS AGREEMEN...

Страница 4: ...IONS HEREOF SHALL BE DETERMINED BY THE NEW ZEALAND COURTS OF LAW PROVIDED HOWEVER TAIT MAY AT ITS ELECTION BRING PROCEEDINGS FOR BREACH OF THE TERMS HEREOF OR FOR THE ENFORCEMENT OF ANY JUDGEMENT IN RELATION TO A BREACH OF THE TERMS HEREOF IN ANY JURISDICTION TAIT CONSIDERS FIT FOR THE PURPOSE OF ENSURING COMPLIANCE WITH THE TERMS HEREOF OR OBTAINING RELIEF FOR BREACH OF THE TERMS HEREOF No Dealin...

Страница 5: ... Connector 18 2 3 Auxiliary Connector 20 2 4 Internal Options Connector 28 2 5 Provision for External Options Connector 31 2 6 Provision for Additional Connector 31 2 7 Control Head Connector 32 2 8 Microphone Connector 36 2 9 Programming Connector 37 3 Programmable I O Lines 39 3 1 Digital Input Lines 39 3 1 1 Toggle Stand by Mode 44 3 1 2 Power Sense Ignition 44 3 1 3 Enter Emergency Mode 45 3 1...

Страница 6: ...4 3 2 10 Call Setup Status 75 3 2 11 Control Status Rx Line 1 to 3 76 3 2 12 Inband Tone Received 77 3 2 13 Radio Stunned 77 3 2 14 F1 to F4 Key Status 78 3 2 15 FFSK Data Received Status 79 3 3 Audio Tap In and Tap Out Lines 80 4 Creating Your Own Options Board 85 4 1 Internal Options Board 85 4 1 1 Mechanical Envelope 86 4 1 2 TM8000 Internal Options Kit 89 4 1 3 Common Practices for Internal Op...

Страница 7: ...124 7 3 Internal Options Power Sense 124 7 4 No Power Sense On Off Key Only 125 7 5 Emergency Power Sense 125 7 6 Configuring the Hardware Links LK1 to LK4 126 7 7 Radio Programming 130 8 Connector Power Supply Options 131 9 Connecting an External Alert Device 133 9 1 Fitting Power MOSFET Q707 and Removing Resistor R768 134 9 2 Radio Programming 135 9 3 Connecting the External Alert Device 135 ...

Страница 8: ...e contact your local Tait service organisation for login details The Tait FOCUS systems allows you to raise technical enquiries directly on Tait via the Internet and view the progress of that issue through to resolution This application allows you to contribute to the issue resolution and also upload and download any required files to speed up the problem resolution process Updates of Manual and E...

Страница 9: ...s Kit Tait Electronics Ltd does not accept liability for any non compliance or infringement of intellectual property rights resulting from the application or use of this kit or information Any person modifying Tait radio frequency transmitting equipment is responsible for ensuring that the modified equipment meets all legal and regulatory require ments in the country of use or supply Associated Do...

Страница 10: ...lfunction Note This alert is used to highlight information that is required to ensure that procedures are performed correctly Abbreviations Abbreviation Description 3DK Third Party Developer s Kit AGND Analogue Ground ALC Automatic Level Control ANI Automatic Number Identification AUD Audio AUX Auxiliary BCD Binary Coded Decimal BIN Binary BNC Bayonet Neill Concelman RF connector CCDI Computer Con...

Страница 11: ...ine Electronics Association OTAR Over the Air Rekeying PA Power Amplifier PCB Printed Circuit Board PRG Program PSU Power Supply Unit PTT Press To Talk RF Radio Frequency RSD Rated System Deviation RSSI Received Signal Strength Indicator RTS Request to Send Rx Receive RXD Receive Data S N Signal Noise SCADA Supervisory Control and Data Acquisition SDM Short Data Message SMD Surface Mounted Device ...

Страница 12: ...12 TM8000 3DK Hardware Developer s Kit Application Manual September 2003 Tait Electronics Ltd ...

Страница 13: ...ines on page 39 Connecting Third Party Products on page 97 connect an external alarm to the radio Connecting an External Alert Device on page 133 configure the radio for different power configurations Power Sense Options on page 121 Connector Power Supply Options on page 131 Description of the Radio Interfaces on page 15 Programmable I O Lines on page 39 replace a T2000 radio and a T2000 A81 board...

Страница 14: ...14 Introduction TM8000 3DK Hardware Developer s Kit Application Manual September 2003 Tait Electronics Ltd ...

Страница 15: ...es Figure 2 2 shows the connectors of the radio body Figure 2 3 shows the connectors of the TM8115 control head Figure 2 4 shows the connectors of the TM8105 blank control head For more block and circuit diagrams refer to the PCB Information chapter of the TM8100 Mobile Radio Service Manual Figure 2 1 TM8000 interfaces with TM8115 control head control head speaker control head board speaker leads ...

Страница 16: ... Manual September 2003 Tait Electronics Ltd Figure 2 2 Connectors of the radio body power auxiliary RF control head internal options provision for rear view front view connector additional connector connector connector connector provision for external options connector connector top view ...

Страница 17: ...rfaces 17 September 2003 Tait Electronics Ltd Figure 2 3 Connectors of the TM8115 control head Figure 2 4 Connectors of the TM8105 blank control head microphone to control head front view connector rear view connector programming to control head front view connector connector rear view ...

Страница 18: ...power connector provides connection for an external speaker Warning Danger of Fire The protection mechanisms in Table 2 3 rely on the correct fuses in both the negative and positive power supply leads being present Failure to fit the correct fuses may result in fire or damage to the radio Table 2 1 RF connector pins and signals Pinout Pin Signal Name Signal Type 1 RF RF analogue 2 GND RF ground re...

Страница 19: ...ange RF performance to specification applies over 10 8 to 16 0V b Outside the radio operating range the radio will shutdown Auto recovery will occur if the supply voltage returns to within the auto recovery limits specified Depending on the power sense option selected auto recovery may not occur if supply voltage drops below 4V prior to returning to within the auto recovery limits c Application of...

Страница 20: ...tions kit described on page 89 includes a suitable plug Tait IPN 240 00020 55 If the auxiliary cable is longer than 1 metre it is recommended to shield the cable and connector backshell Figure 2 5 shows the recommended shielding arrangement The earth braid wire bare copper and aluminium foil should only be earthed at the radio end of the cable The I O lines can be programmed for a variety of funct...

Страница 21: ... 2 AUX_GPIO5 9 AUX_GPIO6 1 AUX_GPIO7 11 AUX_TXD Asynchronous serial port Transmit data Digital 3V3 CMOS 3 AUX_RXD Asynchronous serial port Receive data Digital 3V3 CMOS 7 AUD_TAP_IN Programmable tap point into the Rx or Tx audio chain DC coupled Analogue 13 AUD_TAP_OUT Programmable tap point out of the Rx or Tx audio chain DC coupled Analogue 14 AUX_MIC_AUD Auxiliary microphone input Electret micr...

Страница 22: ...50 600 200 mV mV mV 100 A sink current 10mA sink current 100 A sink current Current limit occurs at 20mA typ Output high level AUX_GPIO4 7 AUX_TXD 3 1 2 4 V V No load Default pullupsc 3kΩ load Safe DC input limits AUX_GPI1 3 AUX_GPIO4 7 AUX_RXD AUX_TXDd 0 5 0 5 25V 10 Vs 0 5 Vs 0 5 Vs 0 5 Vs 0 5 V V V V Input current must not exceed 50mA This is the rating of the clamping diodes Analogue signals D...

Страница 23: ...ap T12 and Tap T13 Refer to the plots in Table 2 12 AUD_TAP_OUT Nominal output level All Rx tap points except R1 Tap R1 Tap T3 0 62 0 54 0 62 0 69 0 60 0 69 0 76 0 66 0 76 Vp p Vp p Vp p Rload 600Ω Level at 60 RSD 1kHz Level at 3kHz dev 1kHz Refer to Microphone sensitivity of AUX_MIC_AUD Equivalent to 10dBm into 600Ω Full scale output level 2 0 Vp p Rload 600Ω Frequency response All tap points Ref...

Страница 24: ...ss filter so the Tx carrier frequency will not be affected by any bias error it is recommended to use external AC coupling for applications which do not require modulation to very low frequencies Table 2 8 Auxiliary connector data characteristics Parameter Standard Test method and conditions Comments min typ max units Serial port Baud rate 1200 2400 4800 9600 14400 19200 bit s All UART parameters ...

Страница 25: ... Narrow band dB ref 1kHz 60 dev 3 0 3 6 9 12 15 18 21 24 27 30 Tap out R4 1 Frequency Hz 10 100 1000 10000 dB ref 1kHz 60 dev 3 0 3 6 9 12 15 18 21 24 27 30 Tap out R5 10 100 1000 10000 Frequency Hz CTCSS off CTCSS on dB ref 1kHz 60 dev 3 6 9 12 15 18 21 24 27 30 9 6 3 0 12 10 100 1000 10000 Frequency Hz CTCSS off CTCSS on Tap out R7 10 100 1000 10000 Frequency Hz dB ref 1kHz 60 dev 3 6 9 12 15 18...

Страница 26: ...ency Hz 10 100 1000 10000 dB ref 1kHz 60 dev 3 0 3 6 9 12 15 18 21 24 27 30 Tap in T8 1 Frequency Hz 10 100 1000 10000 dB ref 1kHz 30 dev 3 6 9 12 15 18 21 24 27 30 9 6 3 0 12 10 100 1000 10000 Frequency Hz Tap in T5 sub limiting 10 100 1000 10000 Frequency Hz Tap in T5 limiting dB ref 1kHz 120 dev 3 0 3 6 9 12 15 18 21 24 27 30 Tap in T4 sub limiting dB ref 1kHz 30 dev 10 100 1000 10000 Frequency...

Страница 27: ...10 100 1000 10000 Frequency Hz dB ref 1kHz 3 0 3 6 9 12 15 18 21 24 27 30 Tap out T4 10 100 1000 10000 Frequency Hz dB ref 1kHz Table 2 12 Group delay distortion frequency response plots 10 Frequency Hz 1 100 1000 10000 100 80 60 40 20 0 20 40 60 80 100 Group delay distortion s µ Tap in R1 or R2 Narrow band Medium band Wide band Tap in T12 or T13 10 Frequency Hz Group delay distortion s µ 1 100 10...

Страница 28: ... to Internal Options Board on page 85 Table 2 14 Internal options connector pins and signals Pinout Pin Signal Description Signal type 1 13V8_SWa Switched 13V8 supply Supply is switched off when the Radio Body is switched off Power 2 AUD_TAP_OUT Programmable tap point out of the Rx or Tx audio chain DC coupled Analogue 3 AGND Analogue ground Ground 4 AUX_MIC_AUD Auxiliary microphone input Electret...

Страница 29: ...tteda Configured as power sense input Output low level All outputs 120 mV 100 A sink current 1kΩ series R on all outputs Output high level All outputs 3 1 V 100 A source current 1kΩ series R on all outputs Safe DC input limits All inputs outputs 0 5 5 5 V Input current must not exceed 10mA Analogue signals for signals not listed here refer to the auxiliary connector specification Safe DC input lim...

Страница 30: ...1200 2400 4800 9600 14400 19200 bit s All UART parameters are fixed and common to all UARTs except for the baud rate which is configurable and different for different modes applications Data bits 8 Start bit 1 Stop bit 1 Parity None Protocol CCDI2 Flow control Software XON XOFF GPIO Delays I O mirror to AUX UI key delay 500 50 s ms Table 2 18 RX_AUD frequency response plot dB ref 1kHz 60 dev 9 6 3...

Страница 31: ...rd Refer to the TM8000 3DK Application Board Service Manual TMAA01 01 Line Interface Board Refer to the TM8100 Mobile Radio Accessories Manual TMAA01 05 Options Extender Board Refer to the TM8100 Mobile Radio Accessories Manual For information on how to create your own internal options board refer to Internal Options Board on page 85 2 6 Provision for Additional Connector The radio has a provision...

Страница 32: ...smit data Digital 3V3 CMOS 4 CH_PTT PTT input from microphone Also carries the hookswitch signal Digital 5 CH_MIC_AUD Fist microphone audio input Analogue 6 AGND Analogue ground Ground 7 CH_RXD Asynchronous serial port Receive data Digital 3V3 CMOS 8 DGND Digital ground Ground 9 CH_ON_OFF Hardware power on software controlled power off input Active low Digital 10 VOL_WIP_DC DC signal from TM8115 v...

Страница 33: ...ent CH_SPI_DI CH_RXD CH_GPIO1 CH_PTT CH_ON_OFF 10 1 10 10 10 µA mA µA µA µA Vin 3 3V Vin 8V Vin 3 3V Vin 3 3V Vin Vs Output low level All outputs except CH_GPIO1 CH_GPIO1 200 50 600 mV mV mV 100µA sink current 100µA sink current 10mA sink current Current limit occurs at 20mA typ Output high level All outputs except CH_TXD CH_GPIO1 3 1 2 4 3 1 100 A source current 3kΩ load No load 33kΩ pullup to 3 ...

Страница 34: ...cuit safe Table 2 20 Control head connector DC characteristics continued Parameter Standard Test method and conditions Comments min typ max units Table 2 21 Control head connector AC characteristics Parameter Standard Test method and conditions Comments min typ max units RX_AUD refer to Table 2 16 CH_MIC_AUD refer to AUX_MIC_AUD in Table 2 7 SPK refer to Table 2 22 Table 2 22 Control head connecto...

Страница 35: ...programmed always to power up when power is applied and the ignition sense hardware link LK1 must be fitted For more information on hardware links refer to Power Sense Options on page 121 Table 2 23 Control head connector data characteristics Parameter Standard Test method and conditions Comments min typ max units Serial port Baud rate 1200 2400 4800 9600 14400 19200 bit s All UART parameters are ...

Страница 36: ...onnector Table 2 25 Microphone connector pins and signals Pinout Pin Signal name Description Signal type 1 MIC_RX_AUD Receive audio output Analogue 2 13V8a Power supply output Switched off when radio body is switched off Power 3 MIC_TXD Asynchronous serial port Transmit data 3 3V CMOS 4 MIC_PTT PTT input from microphone Also carries hookswitch signal Digital 5 MIC_AUD Fist microphone audio input A...

Страница 37: ...ol head connector Table 2 26 Programming connector pins and signals Pinout Pin Signal name Description Signal type 1 PRG_RX_AUD Receive audio output Analogue 2 PRG_TXD Asynchronous serial port Transmit data 3 3V CMOS 3 PRG_MIC_AUD Fist microphone audio input Analogue 4 PRG_RXD Asynchronous serial port Receive data 3 3V CMOS 5 PRG_ON_OFF Hardware power on software power off input Active low Digital...

Страница 38: ...38 Description of the Radio Interfaces TM8000 3DK Hardware Developer s Kit Application Manual September 2003 Tait Electronics Ltd ...

Страница 39: ...e general design principles for use of the programmable I O lines configured as inputs and the input signals which can be set for them Available Input Lines The following lines are available to be used as inputs For details on the connector pin outs and electrical characteristics of these lines refer to Description of the Radio Interfaces on page 15 Table 3 1 Digital input lines Signals Connector ...

Страница 40: ...he TM8100 Mobile Radio Service Manual or the technical support website The input lines of the auxiliary connector and the control head connector are protected against both over voltage and under voltage drive via the clipping diodes and 47kΩ current limiting resistor The input lines of the internal options connector are only protected against minor over voltage conditions refer to Internal Options...

Страница 41: ...e refer to Pullup Resistors on page 66 Driving the Inputs Figure 3 2 shows some possible input drive circuits and illustrates the relative simplicity of connection to the radio Figure 3 1 Digital input lines simplified circuit diagrams 3 3V 3 3V_CL 47k 33k AUX_GPIO4 to 7 AUX_GP1 to 3 5V 13 8V IOP_GPIO1 to 7 CH_GPIO1 not fitted 3 3V 3 3V_CL 47k 33k 3 3V 3 3V_CL 1k 33k Figure 3 2 Digital input lines...

Страница 42: ...en 50 and 100ms If the radio exhibits erratic behaviour upon closing or opening a switch try increasing the debounce time further Signals from logic circuits or microprocessors generally do not require debouncing The input signal must be applied for at least the duration of the debouncing programmed Figure 3 4 shows the debouncing characteristics Active Logic Level The active and inactive logic le...

Страница 43: ...ware links be placed on the main board assembly For more information refer to Power Sense Options on page 121 Note Conversely if these inputs are used for other purposes it is impor tant to check that the hardware links are removed If the hardware links are not removed the radio may power up or down unexpect edly Note that some of these links may have been fitted in the fac tory Input Signals The ...

Страница 44: ... 5s Description When the input line is activated the radio exits stand by mode When the input line is deactivated the radio enters stand by mode Related Actions The Power Sense Ignition input signal can be used to power the radio down to a consumption of 1mA 3 1 2 Power Sense Ignition Application If AUX_GPI3 is configured for auxiliary power sense or IOP_GPIO7 is programmed for internal options po...

Страница 45: ...required for the emergency mode stealth emergency call settings etc 3 Configure an input line AUX_GPI2 with emergency power sense and associate it with this action Set the active state to low As the emergency input driver is usually a mechanical switch to prevent accidental activation set the debounce time to 100ms Timing The input line must be activated for at least 2s Description If emergency po...

Страница 46: ... channel preset call sequences associated with each net work channel 2 Configure the additional parameters required to make an indexed preset call 3 Configure an input line and associate it with this action Set the active state high or low and the debounce time 0 to 100ms Timing Call duration depends on the programmed signalling scheme timing Description When the input line is activated the leadin...

Страница 47: ...00ms Timing Call duration depends on the programmed signalling scheme timing Description When the input line is activated the radio determines the current channel and network and sends free format preset 1 sequence Tip Use the input signals for channel selection e g Home Channel to select the channel with the desired network before activating this signal The radio will ignore state changes on this...

Страница 48: ...ssociate it with this action Set the active state high or low and the debounce time 0 to 100ms Timing The response time is less than 8ms to 90 of full power plus debounce time Description When the input line is activated the radio executes the PTT operation If the Toggle Tx RF Inhibit or Inhibit PTT actions are active no action will result If Toggle Tx RF Inhibit or Inhibit PTT action is activated...

Страница 49: ...nce time 0 to 100ms Timing If this line is activated within 300 s following an activation of any one of the PTT sources the PTT action will not be initiated Description When this input line is activated the radio stops any current PTT transmissions and inhibits any further PTT requests If the input line is active while the radio is powered up it must be re applied for the action to be carried out ...

Страница 50: ...ime of less than 2 5ms If this line is activated within 300µs following an activation of any one of the PTT sources the PTT action will not be initiated Description When any Toggle Tx RF Inhibit input line is activated and the radio is in transmit mode on any channel and independent of the type of transmission the radio will ramp down the RF power to 10dBm 100µW but it will remain in the transmit ...

Страница 51: ...TM8115 front panel lockout as desired BCD tab 3 Configure an input line and associate it with this action Set the active state high or low and the debounce time 0 to 100ms 4 Select a defined channel if desired using the Home Channel actions Timing The time between pulses should be at least 20ms The minimum pulse width is the debounce time plus 2ms Description When this input line is activated the ...

Страница 52: ... desired using the Home Channel action Timing The time between pulses should be at least 20ms The minimum pulse width is the debounce time plus 2ms Description When this input line is activated the radio increments the current channel If the radio is at the end of the channel list and wrap around is disabled the radio ignores the channel change request This input line is of a momentary type and th...

Страница 53: ... home channel Timing Allow 10ms before applying another channel change action Description When this input line is activated the radio changes to the home channel This input line is of a momentary type and therefore no action is performed on its deactivation If the input line is active while the radio is powered up it must be re applied for the action to be carried out Related Actions The Preset Ch...

Страница 54: ...ers 1 to 19 Invalid BCD bit patterns are ignored In BIN operation the bit pattern represents the decimal channel numbers 1 to 31 When channel 0 is selected in either BCD or BIN mode no channel change occurs Table 3 3 shows a list of BCD pin signals and their equivalent BCD and BIN channel numbers When any of these input lines changes the corresponding channel will be selected Table 3 3 BCD pin sig...

Страница 55: ... or similar is used Description When the current state of the BCD input lines is changed the radio determines the new channel according to Table 3 3 and selects it for use When the radio is turned on the BCD input lines are read If the BCD input lines are not set to zero the radio will select the corresponding channel If they are set to zero the radio will select the last saved channel If the bit ...

Страница 56: ...e typically 10ms for the preset channel to be selected or to return to the previous channel If timing is critical in your application then this will need to be measured with the frequency step you intend to use Description When the input line is activated the currently selected channel ID is stored for future use and the radio changes to the preset channel When the input line is deactivated the ra...

Страница 57: ... inputs the audio tap inputs or all audio inputs Timing The response time for both activation and deactivation is approx 2ms plus debounce time Description When the input line is activated the radio mutes the audio input s selected If a higher priority unmute condition exists activation of this line will have no effect When the input line is deactivated the audio input path reverts to its previous...

Страница 58: ...is approx 2ms plus debounce time Description When this input line is activated the radio mutes the configured audio output path s If a higher priority unmute condition exists activation of this line will have no effect When this input line is deactivated the audio output path s reverts to its their previous state If higher priority mute condition exists deactivation of this line will have no effec...

Страница 59: ...me form configure an option to unmute the audio output of the speaker output path the auxiliary output path or all output paths Timing The response time for both activation and deactivation is approx 2ms plus debounce time Description When this input line is activated the radio unmutes the configured audio output path s If a higher priority mute condition exists activation of this line will have n...

Страница 60: ...n this input line is activated the radio unmutes the audio PA If the audio PA is already unmuted no action occurs If a higher priority mute condition exists activation of this line will have no effect When this input line is deactivated the audio PA reverts to its previous state If a higher priority unmute condition exists deactivation of this line will have no effect If the input line is active w...

Страница 61: ...ent consumption will reduce by 50mA Description When this input line is activated the radio mutes the audio PA If the audio PA is already muted no action occurs When this input line is deactivated the audio PA reverts to its previous state If the input line is active while the radio is powered up it must be re applied for the action to be carried out Activation of Force Audio PA Off input line tak...

Страница 62: ...on key has only one function assigned the key press will be actioned as soon as it is sensed When a function key is assigned different functions for short and long key press The short key press function will be actioned as soon as the signal is released if the signal has been active for between 100 and 750ms The long key press function will be actioned as soon as the signal has been active for 750...

Страница 63: ... or low and the debounce time 0 to 100ms Timing The display is updated every 50ms The response time of the LED can therefore be between 2 and 52ms plus debounce time Description When this input line is activated the associated LED lights up When this input line is deactivated the associated LED goes out If the input line is active while the radio is powered up it must be re applied for the action ...

Страница 64: ...O1a TM8105 a CH_GPIO1 of the control head connector is the same signal as MIC_GPIO1 of the microphone connector TM8115 and PRG_GPIO1 of the programming connector TM8105 control head connector microphone connector programming connector input or output Table 3 5 Digital output lines compatibility Output line Logic standard output compatibility 3 3V CMOS 5V CMOS 5V TTL RS 232a a While the output leve...

Страница 65: ...vel conversion will normally be required With the AUX and CH output lines conversion to 5V or 13 8V can be selected by moving the pullup resistor as indicated in Figure 3 9 Note These resistors only provide a weak pullup and hence the output is only able to source a very small current In the logic low state the outputs can sink a higher current For more information refer to Description of the Radi...

Страница 66: ...radio lid the main board assembly and SMD components For any I O line exactly one pullup resistor must be fitted To change the pullup option it is recommended to move the factory fitted pullup resistor to the desired location If you require a different pullup resistance value remove the factory fitted resistor and fit your own in the desired location The current through the pullup resistor must no...

Страница 67: ...nsiderations During power up of the radio any I O lines configured as outputs are in an uncontrolled and high impedance state The pullup resistors have a dominant effect and thus all outputs will appear as if they are indicating logic high during this period The radio will not actively control these lines for up to 1 to 2 seconds after power is first applied or the radio has been switched on It is...

Страница 68: ...als available for programming of the digital output lines Busy Status Radio Transmission Status Channel Locked Status Reflected PTT Status External Alert 1 and 2 Reflected PTT Inhibit Status Signalling Audio Mute Status Monitor Status Hookswitch Status Call Setup Status Control Status Rx Line 1 to 3 Inband Tone Received Radio Stunned F1 to F4 Key Status FFSK Data Received Status ...

Страница 69: ...tab of the programming application For more information refer to the online help of the programming application Configuration Configure an output line and associate it with this action Set the active state to be high or low as required Timing The response time of this output line is 3ms for signal strength and 20ms for noise level Description When the radio detects a change in the state of the bus...

Страница 70: ...state to be high or low as required Timing Specification not finalised at time of publication For further information please contact Customer Support Tait Electronics Ltd Christchurch New Zealand refer to Contact Information on page 2 Description When the radio starts a RF transmission this output line is activated When the radio stops the RF transmission this output is deactivated While the Toggl...

Страница 71: ... the radio detects a change of the synthesizer lock detect state the radio sets the state of this output line to reflect the lock detect state When the synthesizer is locked the output line is active When the synthesizer is not locked the output line is inactive Related Actions None 3 2 4 Reflected PTT Status Application This action is used to report the PTT status by generating a logic OR of all ...

Страница 72: ...elp of the programming software Configuration 1 If you want to connect to an external alert device such as horn or lights relay follow the instructions in Connecting an External Alert Device on page 133 2 Configure AUX_GPIO4 when connection to an external alert device or any other output line and associate it with this action Set the active state to be high or low as required 3 On the Alerts form ...

Страница 73: ...ted on the output line Related Actions The Inhibit PTT input signal is used to stop any current PTT transmissions return to receive state and inhibit any further PTT transmission requests 3 2 7 Signalling Audio Mute Status Application This output signal is used to indicate valid traffic on a channel e g to quieten a car stereo Configuration Configure an output line and associate it with this actio...

Страница 74: ...hen the radio detects a change in state of the monitor function the radio sets the state of this output line to reflect the state of the monitor function When monitor is active the output line is active When monitor is inactive the output line is inactive Related Actions The Hookswitch Status output signal indicates the state of the hookswitch 3 2 9 Hookswitch Status Application This output signal...

Страница 75: ...Configure the Monitor function to activate on both call reception and call initiation Set the Monitor Auto Quiet timer to minimise the chance of turning the Monitor off in the middle of a call Timing The call setup status signal will respond within 2ms of monitor activation during call setup or reception Description This output signal is activated when the monitor function is activated by either a...

Страница 76: ... operating channel 2 Set an alert and or a delay in Detailed tab of the Selcall Selcall Identity form 3 Define the required control status values to activate and deactivate the desired control status signal in the Selcall Control Status form 4 Configure an output line and associate it with this action Set the active state to be high or low as required Note This signal state of this signal can be s...

Страница 77: ... incoming signal is poor Description This output signal is activated once the presence of the pre defined in band tone has been detected for the configured minimum duration The signal will remain active until the tone has not been detected for the duration of the configured tone hold time Related Actions None 3 2 13 Radio Stunned Application This output signal is used to indicate whether the radio...

Страница 78: ...tion key state the LED associated with this function key will not be affected 2 It is recommended to configure the key to Action Digital Output Line Key Settings form in order for the corresponding LED to reflect the key status 3 Configure an output line and associate it with this action Set the active state to be high or low as required 4 Configure the signal state to be either momentary or latch...

Страница 79: ...nabled check box 2 Configure an output line and associate it with this action Set the active state to be high or low as required Timing The output will indicate the presence of FFSK data within 2ms of the preamble sync sequence being successfully decoded Note that the preamble sync sequence is 32 bit periods long approximately 27ms duration The output will indicate the absence of FFSK once the cha...

Страница 80: ...lines Protection circuits are not shown The signal source for the audio tap out line comes from the DSP audio path refer to Figure 3 14 for details and is fed to a digital to analogue converter at 48000 samples per second The converter output is low pass filtered at 12kHz to remove alias components and fed to a buffer amplifier The buffer amplifier output is DC coupled to the AUD_TAP_OUT line and ...

Страница 81: ...ffecting the transmitter carrier frequency The high pass filtered signal is then low pass filtered to prevent aliasing and sampled by an analogue to digital converter at 48kHz The analogue to digital converter output is then fed to the DSP audio path refer to Figure 3 14 for details For some applications such as a crossband link or fitting an encryption module it is necessary to connect the audio ...

Страница 82: ... and AUD_TAP_IN Note You can allocate an audio tap input at the same time as a micro phone input by setting the audio source for a PTT to CH_MIC_AUD or AUX_MIC_AUD and defining a tap in and out point for the same PTT However audio samples from the audio tap input will overwrite those from the microphone input unless the tap in type and tap out type are set to Splice Figure 3 14 Receive and transmi...

Страница 83: ...ect a tap out point to feed audio to an application device and a tap in point to feed audio from an application device Important Do not use Bypass Out on R1 R2 and R4 with subaudi ble or inband signalling schemes as this may prevent correct operation of the signalling decoder The same tap point can be selected for both tap in and tap out This is referred to as a Splice tap type as it allows an aud...

Страница 84: ... For all PTT types the only setting for unmuting the tap in and the tap out points is On PTT Applications For application examples refer to External Modem on page 98 Encryption Module Scrambler on page 107 ANI Module on page 113 Table 3 8 Tap out points and tap out types Rx PTT type Tap out points Tap out types Tap in points Tap in types Rx R1 C Bypass Out D Split R7 E Splice R2 C Bypass Out D Spl...

Страница 85: ...d does not accept liability for any non compliance or infringement of intellectual property rights resulting from the application or use of this kit or information Any person modifying Tait radio frequency transmitting equipment is responsible for ensuring that the modified equipment meets all legal and regulatory require ments in the country of use or supply 4 1 Internal Options Board TM8000 radi...

Страница 86: ...id of the radio body Internal options boards can be sized and shaped as required and can use any combination of fixing parts to suit Figure 4 3 shows an installation example Note Unless stated otherwise all dimensions are given in millimetres Figure 4 1 Internal options board maximum dimensions 0 4 1 5 5 5 15 46 55 5 87 5 99 R 7 5 Ø 3 5 9x 4 12 62 108 132 143 4 11 26 R2 10 2 10 62 3 29 5 centre of...

Страница 87: ...4 11 4 8 42 44 57 70 26 44 57 70 26 18 4 15 4 32 26 9 52 42 29 66 5 14 5 46 5 60 5 110 52 126 01 86 6 Ø 7 8 12x maximise ground plane over bottom side no components on bottom side no through hole components no components max comp height 9 5mm max comp height 6 7mm max comp height 7 7mm max comp height 8 2mm unshaded areas 12x no routes on top side unshaded areas 9x no routes throughhole components...

Страница 88: ... screw 4 40x3 16 2x protective rubber cap foam seal for D range connector 7 screw M3x10 self tapping 9x loom with 18 way Micro MaTch plugs 15 way high density D range socket PCB mount 18 way Micro MaTch socket SMD PCB mount Important Assemble and tighten the two hexlocks tightening torque 0 9N m 8lbf in before screwing the internal options board to the lid Note The labelled parts are available wit...

Страница 89: ...01043 00 2 Fsnr Scrw Lok 1pr 4 40 4 347 00011 00 2 Scrw 4 40 3 16 Unc P P Blk 5 362 01108 00 1 Seal Drng Cvr 9way TMA 6 362 01111 00 1 Seal Drng 9way TMA 349 02062 00 9 Scrw M3 8 T T P T Conti Rmnc 7 219 00329 00 1 Loom TMA Int Opt 240 00011 67 1 Skt 15w Drng Ra Slim Dsub 7912 footprint see Figure 4 4 240 10000 11 1 Conn SMD 18w Skt M Match footprint see Figure 4 5 240 00010 80 1 Plg 15w Drng Hi D...

Страница 90: ...and a receiver The coupling mechanism can be conducted and or radiated Key things to consider are as follows Susceptibility to Interference If the internal options board has connections via the external options connector and the radio s antenna is located close to the options cable significant RF pick up on to the cable may occur If the internal options board contains sensitive analogue circuits p...

Страница 91: ... 7k DVDD AVDD 10n 10n 470 4 7k DVDD AVDD internal options board 2 layers with no groundplane connector loom located as close to the connector as possible digital device analogue device AGND digital ground analogue ground chassis ground screws earth board to chassis Figure 4 7 Internal options board earthing for high speed circuits regulated PSU high speed digital analogue circuit RF external optio...

Страница 92: ...ng two earth wires also halves the impedance of the earth connection where the earths are common at the internal options board end On the internal options board the earth signals can either be connected together or kept separate and fed to the appropriate digital and analog circuitry For low speed designs it is practical to keep them separate but for high speed design it is not usually the case du...

Страница 93: ... to the chassis to provide a low impedance return path for large ESD currents High frequency filtering is provided by the series resistance and 10nF capacitor Large decoupling capacitors cannot be used for digital signals because they round the wave form edges to an unacceptable extent Therefore for ESD protection a small 470pF decoupling capacitor in parallel with a zener diode clamp is recommend...

Страница 94: ... The power plane enables many decoupling capacitors and device power pins to be connected together with very low impedance The inter plane capacitance is usually not sufficient by itself for decoupling Low ESR tantalums for low frequency decoupling are recommended Multiple ceramic 100nF capacitors are recommended for high frequency decoupling Design analysis should be undertaken to ensure that dec...

Страница 95: ...available Six screw points are located on the inside of the blank control head Figure 4 11 shows an installation example 1 Figure 4 9 Blank control head options board maximum dimensions 43 61 149 72 max 70 5 69 75 61 9 74 11 15 R5 11 33 39 5 11 Ø 3 4 clearance for M3x8 screw 6x pin 1 for a placed D range type connector bottom side Figure 4 10 Blank control head options board component height restr...

Страница 96: ...Blank control head options board installation example 4 5 6 8 D range hexlok style fastener 4 40 2x tightening torque 0 45N m 4lbf in screw 4 40x3 16 2x D range cover seal branding label 7 9 screw M3x8 plastic type 6x 9 way D range socket vertical PCB mounting with threaded inserts on connector foam seal for D range connector 4 5 6 8 7 9 ...

Страница 97: ...o frequency transmitting equipment can void the user s authority to operate the equipment By distributing the TM8000 3DK Hardware Developer s Kit Tait Electronics Ltd does not accept liability for any non compliance or infringement of intellectual property rights resulting from the application or use of this kit or information Any person modifying Tait radio frequency transmitting equipment is res...

Страница 98: ...nd then sends the modulated signal over the air via a repeater if necessary 4 Radio 2 receives the modulated signal recovers the baseband modulation signal from the RF carrier and then feeds the baseband modulation signal to external modem 2 5 External modem 2 decodes the baseband modulation signal into serial digital form and feeds it to DTE 2 DTE 2 can also be the source and DTE 1 the destinatio...

Страница 99: ...modulation from radio Format Audio tap input point Audio tap input muting Signal level into 600Ω AUD_TAP_OUT output impedance Constant envelope GMSK FFSK 4 level FSK 1200 9600baud Use R1 D or R2 D for GMSK 4FSK Use R4 D for low baud modems Use except on PTT R1 D 600mVp p 3kHz dev R2 D 690mVp p 60 RSDb R4 D 690mVp p 60 RSDb 600Ω typical Push to talk 12 AUX_GPI1 PTT signal to radio Function Active s...

Страница 100: ...he channels that the modem will be communicating on have the same channel spacing or bandwidth tap in T12 and tap out R2 should be used The signal levels on these taps are automatically scaled to match the channel spacing i e 3kHz deviation on a 25kHz channel and 1 5kHz deviation on a 12 5kHz channel will result in the same tap in and tap out signal levels For modems operating at 2400baud or less ...

Страница 101: ...er s documentation 5 Check that the transmit spectrum meets regulatory requirements in the country of sale Not necessary if tap in point T8 is used 6 Use a second system to confirm end to end communication over the air Initially it is recommended to do this with strong signal conditions System Delays through the Radio It is important for data applications to know the system delays through the radi...

Страница 102: ...ted to the microphone connector of the control head The microphone connector is described on page 36 It can also be connected to the corresponding lines of the programming connector of the blank control head Figure 5 2 shows the diagram of an audio headset interfaced with the microphone connector of the TM8115 control head Figure 5 2 Diagram of an audio headset connected to the radio control head ...

Страница 103: ...eadsets with high drive or volume requirements one of the radios internal speaker outputs should be used to drive the earphones To connect an internal speaker output to pin 1 on the microphone connector remove R52 and fit C50 and R53 on the TM8115 control head board Figure 5 3 on page 104 shows the positions of C50 R52 and R53 on the control head board Follow the instructions of the TM8100 Service...

Страница 104: ...ty and disconnect the internal speaker 4 Turn the volume to minimum and plug the headset into the microphone socket 5 Select and test the value of R53 until the desired headset volume is achieved when the radios volume control is turned up to maximum Ensure the radio is powered down when making changes to the value of R53 6 Select the value of C50 to be 1 1900 R53 RE 7 Round this result to the nea...

Страница 105: ...n AUX_GPI1 pin 12 and AGND pin 15 on the radio s auxiliary connector Radio Programming Use the programming application to configure the radio 1 In the PTT External PTT 1 form set the Advanced EPTT1 group to PTT Transmission Type Voice Audio Source CH_MIC 2 In the Digital tab of the Programmable I O form carry out the following settings 3 To eliminate mute and unmute pop when the earphone is driven...

Страница 106: ...f these connectors have TLL levels and are described in Description of the Radio Interfaces The TLL level must be converted to RS 232 level using the Tait T2000 A19 cable The T2000 A19 cable does not support CTS RTS hardware handshaking Figure 5 4 shows typical connections between the radio and the USB port of the PC and the cables and adaptors required including Tait product codes When installing...

Страница 107: ... The installation and configuration of encryption modules is a complex task and should only be attempted by persons with in depth knowledge of the installation and commis sioning of encryption systems Interface Specification The encryption module can be mounted inside the radio body where it connects to the internal options connector via a standard 1 27mm pitch ribbon cable The internal options co...

Страница 108: ...ve State Toggle F1 F4 Key LED High Radio Tx audio to module 2 AUD_TAP_OUT Tx audio from radio Audio tap input point Audio tap input unmuting Signal level into 600Ω AUD_TAP_OUT output impedance Use T4 E Use on PTT 690mVp p 60 RSDb 600Ω typical Module Tx audio to radio 6 AUD_TAP_IN Tx audio to radio Audio tap input point Audio tap input unmuting Signal level into 600Ω AUD_TAP_IN input impedance Use ...

Страница 109: ...dio interfacing deviation 300Hz de future processing option normaliser 3kHz LPF HPF emphasis audible indicators R10 R7 R5 R4 R2 R1 audio to dev transmitter modulator pre future processing option scaler limiter and 3kHz LPF emphasis ALC mic audio T3 T5 T8 T12 T13 300Hz HPF future processing option T4 Key tap point tap in or tap out DSP digital signal processor LPF low pass filter HPF high pass filt...

Страница 110: ...matches that of Figure 5 7 Use the following procedure to choose the component values in Figure 5 7 a Choose C1 1nF is a typical value b Determine R1 R1 1 35300 C1 c Determine R2 R2 5 9 R1 for unity gain Scale R2 propor tionally to change gain d Ensure that C2 is zero e Use the nearest preferred component values 4 Ensure that de emphasis is applied on both transmit and receive If this cannot be do...

Страница 111: ...yption encryption code via the user interface When the radio is set to Clear mode unencrypted the encryption module does not affect the radio operation Unencrypted messages received while the radio is in Secure mode will be received as normal i e the radio does not apply any decryption To initiate a secure call 1 Press the Clear Secure function key if not already in Secure mode The Secure LED ligh...

Страница 112: ...n is to be expected when encryption is active The main effects are reduced radio range and audio quality Testing With encryption off 1 Check that the radio powers up normally with the normal display messages and confirmation tones 2 Check that receive and transmit audio are functioning using a service instrument or another radio on the same channel With encryption on 1 Check that the radio receive...

Страница 113: ...more infor mation refer to the online help of the programming application Interface Specification The ANI module is mounted inside the radio body where it connects to the internal options connector via a standard 1 27 mm pitch ribbon cable An optional emergency switch can be connected to AUX_GPIO4 and AGND of the auxiliary connector The internal options connector is described on page 28 Figure 5 8...

Страница 114: ...nnector Action Active State Module logic threshold required Mirrored from AUX_GPIO4c Low 3V3 CMOS compatibleb Mic mute 11 IOP_GPIO3 Mic mute signal to radio Used as PTT input in order to switch audio source from radio mic to ANI Action Active State External PTT2 Low Module tone out 6 AUD_TAP_IN Tone output to radio Audio tap input point Audio tap input unmuting Signal level required AUD_TAP_IN inp...

Страница 115: ...TT1 form set the Advanced EPTT1 group to PTT Transmission Type None PTT State Is Reflected cleared 5 In the PTT External PTT2 form set the Advanced EPTT2 group to PTT Transmission Type Voice PTT State Is Reflected cleared PTT Priority Highest Audio Source Audio Tap In ANI Module Programming Refer to the manufacturer s documentation Pin Direction Action Active Debounce Signal state Mirrored to AUX_...

Страница 116: ...116 Connecting Third Party Products TM8000 3DK Hardware Developer s Kit Application Manual September 2003 Tait Electronics Ltd ...

Страница 117: ...nector is described on page 20 2 Technology The T2000 A81 is a PCB based hardware interface and none of the connections to the T201X are programmable On the other hand all of the digital I O lines on the auxiliary connector on the TM8000 are programmable to a wide range of functions 3 Signal levels Due to the nature of the two radio designs both the digital interface and analogue levels will have ...

Страница 118: ...or using the TM8000 lines for a similar application The TM8000 auxiliary connector is described on page 20 Table 6 1 T2000 81 and TM8000 interface specification T2000 A81 connector T2000 options signal T2000 radio options line T2000 comment TM8000 auxiliary connector TM8000 auxiliary signal TM8000 designation TM8000 comment 1 13 8V switched S14 pin 1 Current limit 200mA 8 13V8_SW 13V8_SW Current l...

Страница 119: ...This line is committed to serial reception 14 PTT TO OPTION S14 pin 5 PTT signal from the outside world active lowa 9 AUX_GPIO6 GPIO6 Program as EPTT2 for voice transmission via the fist or handsfree microphone 15 RSSI BCD 1 With link 3 RSSI S14 pin 15 With link 4 BCD 1 S15 pin 4 Only one link can be selected at a time RSSI voltage for signal strength or BCD for V2 05 firmware onlyc 1 AUX_GPIO7 GP...

Страница 120: ...120 Replacing the Tait T2000 A81 Board TM8000 3DK Hardware Developer s Kit Application Manual September 2003 Tait Electronics Ltd ...

Страница 121: ...e options Important Although it is possible to connect the radio in line with the vehicle ignition this installation method is not recom mended as it may draw too much current resulting in dam age to the wiring and key column This may also cause the supply voltage of the radio to drop below the specified level Use the auxiliary power sense option for vehicle installa tions current consumption 1mA ...

Страница 122: ...accordingly With some link settings certain lines will not be able to be used as general purpose I O Refer to Radio Programming on page 130 Power On Mode In addition to the power sense options with the 13 8V battery power sense auxiliary power sense and internal options power sense configurations the power on mode of the radio must be programmed to be either on or to return to its previous state w...

Страница 123: ... 28mA because it enters stand by mode and does not shut down completely Note The power consumption of the no power sense option is 1mA Applications Use this option when the radio is used in a remote location if the power is cut the radio does not need to be turned back on once power is restored when a control head is not fitted no on off key when the radio is used with a desktop supply with its ow...

Страница 124: ...was on or in stand by mode the radio now draws 1mA Applications Use this option for installations in vehicles where the radio turns off when the ignition is turned off and the radio can be programmed to be either on or to return to the previous state on power up telemetry applications which may have a limited power source where the radio is only to turn on when an external digital signal is applie...

Страница 125: ...ed in situations where the radio user could be in possible danger e g taxis armoured vehicles police etc or where there could be a medical emergency e g buses etc An emergency call or programmable key press can activate emergency mode As a programmable option emergency mode can also be activated by pressing a hidden emergency button for two seconds Emergency power sense uses the AUX_GPI2 line of t...

Страница 126: ...e radio provides four hardware links LK1 to LK4 which can be configured to attain the power sense option desired Figure 7 2 shows a block diagram of the hardware links LK1 to LK4 The radio is powered up if one or more of these inputs is active Figure 7 2 Block diagram of hardware links LK1 to LK4 IOP_GPIO7 13V8_BATT LK2 auxiliary power AUX_GPI3 13 8V battery 13V8_BATT power up circuit sense igniti...

Страница 127: ... ignition sense tolerant to 3 3V 5V and 12V LK1 out Input line must be active highb LK4 out IOP_GPIO7 can be used as GPIO internal power sense LK1 out IOP_GPIO7 0 7V off IOP_GPIO7 2 6V high active ignition sense tolerant to 3 3V and 5V only LK2 out AUX_GPI3 can be used as GPI LK4 in With LK4 in the input line must be active highc no power sense LK1 out 10 8V supply 16V LK2 out AUX_GPI3 can be used...

Страница 128: ...ons of hardware links LK1 4 on the main board assembly Figure 7 4 shows the positions of the resistors R775 and R723 on the main board assembly Follow the instructions of the TM8100 Service Manual on removing and fitting the radio lid the main board assembly and SMD components Figure 7 3 Positions of LK 1 4 on the main board assembly top side ...

Страница 129: ...TM8000 3DK Hardware Developer s Kit Application Manual Power Sense Options 129 September 2003 Tait Electronics Ltd Figure 7 4 Positions of R723 and R775 on the main board assembly bottom side ...

Страница 130: ...rogrammed for one of these input lines these input lines should be set to Power Sense Ignition This setting itself has no function Power On Mode With the 13 8V battery power sense auxiliary power sense and internal options power sense configurations the power on mode of the radio must be programmed to be either on or to return to its previous state from when the power sense signal was removed For ...

Страница 131: ...r is not affected by the state of the radio Switched Power Switched power means that when the radio is off or in standby mode the power to the connector is switched off The power will also be switched off if the primary power source voltage is outside the radio s operating range for details refer to Power Connector on page 18 The switched current drawn by all connectors must not exceed 1A in total...

Страница 132: ... 1 Connector power supply options Link state Connector power state LK5 LK6 LK7 R787 LK8 R786 Auxiliary Internal options Control head Microphone out out out out switched no power no power no power ina outa ina outa switched switched switched switched out in in out switched switched unswitched unswitched in out out in switched unswitched switched switched out in out in switched unswitched unswitched...

Страница 133: ...connection of an external alert device to the AUX_GPIO4 line of the auxiliary connector and the programming of the radio for an external alert signal Important Modifications to radio frequency transmitting equipment can void the user s authority to operate the equipment By distributing the TM8000 3DK Hardware Developer s Kit Tait Electronics Ltd does not accept liability for any non compliance or ...

Страница 134: ...ircuit diagram of the AUX_GPIO4 line in factory configuration For a complete circuit diagram of the main board assembly refer to the TM8100 Service Manual Figure 9 2 shows the positions of Q707 and R768 For a complete layout of the main board assembly refer to the TM8100 Service Manual Follow the instructions of the TM8100 Service Manual on removing and fitting the radio lid the main board assembl...

Страница 135: ...orks Alerts Form In the General and External Alerts tab of the Networks Alerts form configure the settings of the external alerts For further information on how to configure the Alerts form refer to the online help of the programming software 9 3 Connecting the External Alert Device Important While MOSFET Q707 is rated at 12A with heat sink the maximum allowable current of the connector and radio ...

Страница 136: ...136 Connecting an External Alert Device TM8000 3DK Hardware Developer s Kit Application Manual September 2003 Tait Electronics Ltd ...

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