Rev. 1.1 - July 200
9 - ETH_ DuraNAV_HM1.1
DIGITAL TECHNOLOGIES FOR A BETTER WORLD
www.eurotech.com
DuraNAV
A low power ruggedised system for
real-time vehicle tracking
HARDWARE MANUAL
DuraNAV – Hardware Manual
2
Note: The information in this document is subject to change without notice; any should not be construed as a commitment by any EUROTECH
company. While reasonable precautions have been taken, EUROTECH assumes no responsibility for any error that may appear in this document.
All trademarks or registered trademarks remain the property of EUROTECH.
Disclaimer
The information in this manual has been carefully checked and is believed to be accurate. Eurotech assumes no
responsibility for any infringements of patents or other rights of third parties, which may result from its use.
Eurotech assumes no responsibility for any inaccuracies that may be contained in this document. Eurotech makes no
commitment to update or keep current the information contained in this manual.
Eurotech reserves the right to make improvements to this document and/or product at any time and without notice.
Warranty
This product is supplied with a limited warranty. The product warranty covers failure of any Eurotech manufactured
product caused by manufacturing defects. Eurotech will make all reasonable effort to repair the product or replace it with
an equivalent alternative. Eurotech reserves the right to replace the returned product with an alternative variant or an
equivalent fit, form and functional product. Delivery charges will apply to all returned products.
Trademarks
All trademarks, both marked and not marked, appearing in this document are the property of their respective owners.
© 2008 Eurotech Spa
Eurotech S.p.A.
A member of the Eurotech Group
Via Fratelli Solari, 3/a
33020 - AMARO (UD)
ITALY
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Printing this Manual
This manual is designed to be printed on both sides of an A4 paper sheet or two pages per sheet, but can
also be printed single-sided.
Manual Conventions
The following conventions are used throughout this manual.
The “Mode” of the register:
R/W: Readable and Writable register
RO: Read only register
W: Meaning of the register when written
R: Meaning of the register when read
Hexadecimal numbering:
Hexadecimal numbers are indicated with an “h” suffix (for example: 11Ch)
Symbols and Text used in Pin-out tables:
Symbol / Text Definition
◄ Input
► Output
◄► Bi-Directional
▬ Passive
Module specific Dependent on module installed
NC Not Connected
Reserved Use reserved to Eurotech, must remain unconnected
Warnings and Important Notices:
Warning:
Information to alert you to potential damage to a program, system or device or potential
personal injury
Information note:
Indicates important features or instructions to observe
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Technical Assistance
If you have a technical question or if you cannot isolate a problem with your device, please send an e-mail to
the Eurotech Technical Support Team at: email: techsupp@eurotech.com
Before returning any Eurotech supplied product, for any reason whatsoever, you must first send and e-mail
to Technical Support Team on the above email address, providing information listed below. After this you will
receive an RMA number (Returned Material Authorization) for the return of the material:
Information to be provided in RMA request:
• Model number
• Serial number
• Detailed fault description
• Company Details
• Contact details
Pack the device in anti-static material and ship it in a sturdy cardboard box with
enough packing material to adequately protect the shipment.
Any product returned to Eurotech improperly packed will immediately void the
warranty for that particular product!
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Table of Contents
Printing this Manual ............................................................................................................................................3
Manual Conventions...........................................................................................................................................3
Technical Assistance ..........................................................................................................................................4
Table of Contents .............................................................................................................................................5
Introduction.......................................................................................................................................................7
Product overview ................................................................................................................................................8
Interfaces ............................................................................................................................................................9
Operating Characteristics .................................................................................................................................10
Electrical Characteristics........................................................................................................................................ 10
Temperature Range...............................................................................................................................................10
Chapter 1 Connector Description.............................................................................................................11
Rear panel layout..............................................................................................................................................11
A1, A2 and A3: Antenna connectors......................................................................................................................11
M1: 28pin Male Circular Plastic Connector............................................................................................................12
M2: 28pin Female Circular Plastic Connector........................................................................................................ 16
M3: 28pin Female Circular Plastic Connector........................................................................................................ 20
Front panel connector layout ............................................................................................................................21
LED functions.........................................................................................................................................................21
Removing the protection cover ..............................................................................................................................23
Chapter 2 Hardware description...............................................................................................................27
GPIO and CPLD Registers (sorted by function)...............................................................................................27
GPIO use and configuration .............................................................................................................................28
Address Range Map .........................................................................................................................................29
CPLD Registers overview.................................................................................................................................29
CPLD_reg_0 register............................................................................................................................................. 30
CPLD_reg_1 register............................................................................................................................................. 31
CPLD_reg_2 register............................................................................................................................................. 32
CPLD_reg_3 register............................................................................................................................................. 33
Resource use and assignment .........................................................................................................................34
Serial Ports ............................................................................................................................................................ 34
USB Ports.............................................................................................................................................................. 34
Identifier Controller.................................................................................................................................................35
CAN register access .........................................................................................................................................36
Power On and Off .............................................................................................................................................36
Appendix .........................................................................................................................................................37
A.1. Mechanical Specifications .....................................................................................................................38
Mechanical Characteristics....................................................................................................................................38
A.2. Electromagnetic Compatibility Installation Guidelines for Railway Applications ...................................39
Cable separation instructions.................................................................................................................................39
Cable shielding instructions ...................................................................................................................................40
DURANAV Shielding instructions........................................................................................................................... 40
A.3. Applicable Standards.............................................................................................................................41
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A.4. Environmental Considerations...............................................................................................................42
Electromagnetic compatibility and safety...............................................................................................................42
RAEE..................................................................................................................................................................... 42
RoHS.....................................................................................................................................................................42
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Introduction
The Eurotech DuraNAV is a low power standard platform designed for demanding cost sensitive real time
vehicle tracking applications. It combines a powerful low power embedded CPU with advanced in-vehicle
peripheral and wireless connectivity.
Several standard system configurations are available with various wired & wireless interface options.
It should be noted that this manual describes an DuraNAV with all available options.
Figure 1. Example of the rear view
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Product overview
• Wireless features
LOCALIZATION:
o GPS (Fastrax iTrax 03)
- 12 channel receiver
- Update rate 1Hz
COMMUNICATION:
o GSM/GPRS (Siemens MC55)
- Tri-band EGSM900, GSM1800 and GSM1900
- GPRS multi-slot class 10
- GPRS mobile station class B
- Compliant to GSM phase 2/2+
- Controlled via AT commands
o Wi-Fi 802.11b, g (Wistron DRCM81)
- Frequency band b-mode: 2.4GHz to 2.497GHz
- Frequency band g-mode: 2.4GHz to 2.4836GHz
- WEP Encryption 64/128/152 bit
• Communication ports
- USB 1.1 port with PHILIPS ISP1161ABM controller (optionally 2 ports)
- Fast Ethernet port with SMSC 91C111I chipset
- 2 Jumper configurable RS232/RS422/RS485 Serial Ports with ST16C550 chipset
- CAN Bus with Philips SJA1000 chipset
- Odometer input with software selectable threshold from 3 to 24 V
- VGA Analog Video output, 640x480 with 16 colours (optional)
• Audio ports
- Line or Microphone input
- Software selectable Stereo Line Out or Stereo Headphone Out
• I/O ports
- 4 Opto-isolated Digital Inputs
- 4 Opto-isolated Digital Outputs
• Processor
Intel® PXA 255
• Memory
64MB SDRAM
• Operating Systems supported
BSP and Drivers for Windows CE and Linux
• Chassis
Ultra light extruded Aluminium enclosure
• Dimensions (mm)
255 x 129 x 57 (L x W x H)
• Power Input
+ 9 / +36 VDC
• Power Consumption
10W (Maximum)
• Operating Temperature
-25°C to +55°C, +70°C for 10 min (EN50155 class T1)
• Cooling Fans
None required. Passive heat sink solution utilised
• Weight
2 Kg (maximum)
• Real Time Clock
Date and Time are obtained from GPS messages
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Interfaces
Six LED indicators are located on the front panel, 4 for status and 2 that are user programmable also a
removable service panel that gives user access to various connectors that are useful for maintenance.
On the rear panel, depending on the model you have purchased, up to three SMA antenna connectors (A1 to
A3) and three circular connectors (M1 to M3) will be available.
A1 A2 A3
M1 M2 M3
LEDs Protection Cover
Front panel
Rear panel
Sim-holder USB device Jumpers & Test port
1 3 5
2 4 6
Figure 2. DuraNAV front and rear panels
REAR PANEL TYPE FUNCTIONS
A1
Female SMA Wi-Fi Antenna
A2
Female SMA GSM/GPRS Antenna
A3
Female SMA GPS Antenna
M1 28pin Male Circular Plastic Connector
AMP part number 205840-3
Size 17, series 2
• Power Input
• 4 Opto-isolated Digital Inputs
• 4 Opto-isolated Digital Outputs
• Ignition key
• Identifier
• 10/100MB Fast Ethernet
M2 28pin Female Circular Plastic Connector
AMP part number 206038-1
Size 17, series 2
• 2 Serial ports
• Audio Input / Output
• Odometer Input
• USB 1.1 host port
• CAN Bus
M3
(Optional)
28pin Female Circular Plastic Connector
AMP part number 206038-1
Size 17, series 2
• VGA Port
• Second USB 1.1 host port
FRONT PANEL FUNCTION AVAILABILITY
6 LED indicators
• 4 for the DuraNAV status
• 2 user programmable
Maintenance interfaces
• SIM cardholder
• USB 1.1 device port (for debug)
• Serial ports and Odometer configuration jumpers
• Test Serial Port connector and Reset connector
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Operating Characteristics
Electrical Characteristics
Characteristic Minimum Nominal Maximum
Input Voltage Range: 9.0 V DC 12.0 V DC
24.0 V DC
36.0V DC
Absolute Maximum Input Voltage -- -- 40.0 V DC for <100 ms
Typical power consumption:
Device in Power ON state
Device in Power OFF state
(1)
--
8 Watts
0,07 Watts
--
(1) When powered OFF, a power supply is required for the ignition key management
Temperature Range
The DuraNAV can withstand the following temperature ranges without using active cooling fans.
Characteristic Minimum Nominal Maximum
Core extended temperature range -25°C -- +55°C
Absolute Maximum Temperature -- -- +70°C for <10 minutes
Storage Temperature -40°C -- +85°C
Non-Condensing Relative Humidity -- -- <95% at 40°C
Warnings:
• Stressing the device beyond the Absolute Maximum Ratings may cause
permanent damage
• These are stress ratings only
• Extended exposure beyond the “Operating Conditions” may affect device life span
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Chapter 1 Connector Description
This chapter provides a brief description of the connectors that are located on the DuraNAV, their position
and function.
Rear panel layout
On the rear panel of the DuraNAV there will be up to three Circular Plastic Connectors and three Female
SMA connectors:
A1 A2 A3
M1 M2 M3
Figure 3. The DuraNAV rear panel layout
Note:
The connector layout of your system may differ from the image above depending on
the model purchased.
A1, A2 and A3: Antenna connectors
Up to three “female SMA” connectors can be found on the rear panel of your DURANAV.
A1 A2 A3
Figure 4. Female SMA Antenna connectors
• A1: Wi-Fi Antenna
• A2: GSM/GPRS Antenna
• A3: GPS Antenna
Warning:
The typical BIAS voltage of the GPS antenna is +3.0V with up to 50 mA.
Notes:
• Communication with the integrated GPS and GSM/GPRS modules is possible via
two serial ports; refer to Hardware description for further information.
• The SIM card is not factory installed. It is accessible from outside the system by
removing the Service Panel Protection Cover on the front panel; see paragraph:
The SIM cardholder
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M1: 28pin Male Circular Plastic Connector
M1 is a 28pin Male Circular Plastic Connector that carries the signals for the following:
• Main Power Input
• 4 Opto-isolated Digital Inputs
• 4 Opto-isolated Digital Outputs
• Ignition key
• Identifier
• 10/100MB Fast Ethernet
• Reserved pins for optional MNFLX module
1
4
9
15
21
26
Figure 5. M1 Connector Pin Location
Pin # Signal Use Description Direction
1 VIN+ Power Supply Positive ◄
2 VIN- Power Supply Negative ◄
3 DIN1+ Digital IO Input 1 + ◄
4 DIN3+ Digital IO Input 3 + ◄
5 DIN1- Digital IO Input 1 - ◄
6 DIN3- Digital IO Input 3 - ◄
7 DIN2+ Digital IO Input 2 + ◄
8 DIN4+ Digital IO Input 4 + ◄
9 DIN2- Digital IO Input 2 - ◄
10 DIN4- Digital IO Input 4 - ◄
11 DOC1 Digital IO Collector for Output 1 ►
12 DOC2 Digital IO Collector for Output 2 ►
13 DOC3 Digital IO Collector for Output 3 ►
14 COMMON_DOE Digital IO Common Emitter for Digital Output ►
15 DOC4 Digital IO Collector for Output 4 ►
16 COMMON_DOE Digital IO Common Emitter of Digital Output ►
17 KEY_IN+ Ignition Key Key Input + ◄
18 KEY_IN- Ignition Key Key Input - ◄
19 IDENT_LINE Identifier Line One-wire line ◄►
20 MNFLX-IO_10_C MiniFlex In/Out 10 Module specific
21 GND Identifier Line and In/Out Ground ▬
22 MNFLX-IO_9_C MiniFlex In/Out 9 Module specific
23 RJ45_4_5 10/100 Ethernet Unused wires termination ▬
24 RJ45_7_8 10/100 Ethernet Unused wires termination ▬
25 ETHERNET_RX+ 10/100 Ethernet Receive + ◄
26 ETHERNET_TX+ 10/100 Ethernet Transmit + ►
27 ETHERNET_TX- 10/100 Ethernet Transmit - ►
28 ETHERNET_RX- 10/100 Ethernet Receive- ◄
Table 1. M1 pinout (for all the DURANAV versions)
DuraNAV – Hardware Manual
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Notes about the main power supply and ignition key:
The power supply section is made as follows:
• Input power filtering and protection circuitry, featuring a tranzorb to prevent over-voltages (load dump
up to pulses 10/1000μs with 1500W).
• DC/DC converters and regulators, ensuring the correct supply voltage to the board’s components.
• The control section that manages the whole power supply section.
An opto-isolated digital input acts as an “ignition key”: a voltage from 8.4 to 36.0 V DC needs to be applied to
pins 17 and 18 of connector M1 to enable the main system power.
For example, this can be part of the ignition key circuitry of a vehicle where the system is installed.
Power down is software managed.
1 2
M1
17 18
+
-
+12/24Vdc
Fuse
Figure 6. Power supply schematic
Note that a fuse must be present on the positive supply cable. This is a safety requirement that helps to
avoid damage to the device in case of mismatches or short-circuits.
The fuse should be a slow-blow with the following characteristics:
Characteristic Amperes Delay Time
12 Volt systems 4 Amps @ 24 Amps = 10 → 200ms
24 Volt systems 2 Amps @ 12 Amps = 10 → 200ms
For further information, refer to Power On and Power Off.
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Notes about the Digital I/O
Up to 4 Opto-isolated Digital Inputs and 4 Opto-isolated Digital Outputs are available on connector M1
Isolated Digital Inputs
Each of the digital inputs consists of a phototransistor, optically coupled to two infrared emitting diodes
connected inverse parallel.
The electrical levels are as follows:
Logical zero 0 V <= VIN_low <= 1.5 V
Logical one 10 V <= VIN_high <= 36.0 V
Note:
Do not exceed 36V between the positive and negative opto-coupler input pins
The Maximum propagation time from opto-isolated input to sampling digital input is 8 ms
The minimum detectable pulse length depends on:
• Polling method
• Better interrupt-based method
There is a programmable interrupt control block inside AC97 CODEC, which can generate an interrupt for 0-
to-1 and/or 1-to-0 transitions on one or more of digital inputs.
In both cases, the overall interrupt or polling rate depends on operating system, drivers and application
software.
Figure 7. Schematic of the Isolated Digital Inputs
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Isolated Digital Outputs
Four NPN opto-isolated digital outputs are available.
Outputs use a low-side switch scheme and can drive up to 33V and 200mA maximum.
Outputs have a common ground connection.
Electrical characteristics for Digital Outputs over working temperature range:
Maximum Drain Source voltage 36 V
Maximum Output ’Low’ voltage 0.4 V (at Id=200 mA)
Minimum Current limit 230 mA
Over-current protection intervention delay 5 us (typical)
Maximum propagation time from digital output to
opto-isolated open-drain
300 us
Note that DuraNAV has to be powered-off to recover from an over-current protection intervention.
Figure 8. Schematic of the Isolated Digital Outputs
Notes about the Identifier
The identifier line can be used to connect a Dallas/Maxim 1-wire EEPROM device, useful for identification
purposes.
The DuraNAV supports 1-Wire devices as DS2431, working at standard speed only.
The working voltage for I/O line is 5V.
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M2: 28pin Female Circular Plastic Connector
M2 is a Female 28pin Circular Plastic Connector that carries the signals for the following:
• 2 Serial ports
o Jumper configurable between RS232, RS422 and RS485
o See Notes about the Jumpers and their functions
•
Audio Input / Output
• Odomete
r Input
• USB 1.1 host port
• CAN Bus interface
1
4
9
15
21
26
Figure 9. M2 female Circular Plastic Connector
Pin # Signal Use Description Direction
1 RTS2 Serial 2 Request To Send ►
2 RX2 Serial 2 Receive Data ◄
3 TX2 Serial 2 Transmit Data ►
4 CTS2 Serial 2 Clear To Send ◄
5 RTS1 Serial 1 Request To Send ►
6 RX1 Serial 1 Receive Data ◄
7 TX1 Serial 1 Transmit Data ►
8 CTS1 Serial 1 Clear To Send ◄
9 GND_SER1 Serial 1 Ground ▬
10 GND_SER2 Serial 2 Ground ▬
11 HEADPH_L Headphone Left ►
12 HEADPH_R Headphone Right ►
13 GND_AUDIO Audio Ground
14 LINE-OUT-R Audio Line-out for right speaker amplifier ►
15 GND_CAN CAN Ground ▬
16 GND_USB1 USB 1 Ground ▬
17 MIC_IN/LINE_IN Audio Microphone In or Line In ◄
18 LINE-OUT-L Audio Line-out for left speaker amplifier ►
19 MIC_SUPPLY Microphone Power Supply ►
20 GND_MIC Microphone Ground ▬
21 GND_ODOMETER Odometer Ground ▬
22 USB1_D+ USB 1 Data + ◄►
23 ODOMETER_IN Odometer Input ◄
24 USB1_D- USB 1 Data - ◄►
25 ODOMETER_SUPPLY Odometer Power supply ►
26 USB1_+5V USB 1 +5 Volts ►
27 CAN_H CAN Data High ◄►
28 CAN_L CAN Data Low ◄►
Table 2. M2 Connector Pinout
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Notes about the M2 connector serial port pinout:
Serial Ports 1 and 2 are configurable between RS232, RS422 and RS485.
Configuration is done using the jumpers located under the protection cover.
The following table shows the signal transformations when selecting RS-232, RS-485 or RS-485:
RS232 RS422 RS485
Signal Direction Signal Function Direction Signal Function Direction
RTS ► TX- Transmit
Data -
► TX- /
RX-
Transmit Data - /
Receive Data -
◄►
RX ◄ TX+ Transmit
Data +
► TX+
/RX+
Transmit Data + /
Receive Data +
◄►
TX ► RX- Receive
Data -
◄ NC
CTS ◄ RX+ Receive
Data +
◄ NC
Table 3. Serial Port Signal Transformation (RS232, 422 and 485)
Notes about the odometer:
The odometer line "ODOMETER_IN" is an opto-coupled counter input for odometer devices such as those
commonly used in vehicle speed measurement devices.
The negative reference "GND_ODOMETER" is a filtered ground connected to COMMON_DOE ground.
DuraNAV – Hardware Manual
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Electrical Specification for input signal:
Voltage range: 0 ~ 36V
High / Low threshold: 2 ~ 20V software selectable
Maximum input frequency: 10kHz
Minimum High Time: 40us
Minimum Low Time: 40us
Odometer Supply:
A voltage output for an Odometer device is available on pin "ODOMETER_SUPPLY".
Note that common GND pins are used as reference for "ODOMETER_SUPPLY".
The voltage supply is jumper selectable between 5V and the "VIN+" (battery) voltage.
In both cases, the output current is protected over the threshold of 200mA.
Refer to The Jumpers and their functions paragraph for further information about the jumper selection.
Selection of threshold:
The odometer circuit compares the input signal with a software programmable threshold, and uses the
comparator output as the clock of a 16-bit counter.
The purpose of the programmable threshold is not to measure the value of the input voltage, but to allow the
system integrator to choose the best threshold value for his application.
First, the odometer input signal is applied to a resistor divider with a ratio of 1:4.7, with 100kOhm input
resistor. Then the signal is compared with a programmable reference voltage from 0 to 5V in 64 steps of
78mV each.
The programmable reference voltage comes from an EEPOT device, whose wiper position is programmed at
power-on and stored until next power-down or reprogramming.
Note that due to tolerances and rail limits, the lower and upper limits of reference voltage are not usable.
There are 55 usable threshold values, which correspond to wiper position from 6 to 60.
The comparator itself has 15mV of hysteresis for a clean transition.
On the following table, there are the allowed wiper position and the corresponding threshold, with a 4%
tolerance.
Wiper
step
Threshold Wiper
step
Threshold Wiper
step
Threshold Wiper
step
Threshold
1 Unused 17 6,41 33 11,98 49 17,10
2 Unused 18 6,78 34 12,32 50 17,41
3 Unused 19 7,14 35 12,65 51 17,71
4 Unused 20 7,49 36 12,98 52 18,01
5 Unused 21 7,85 37 13,31 53 18,31
6 2,32 22 8,20 38 13,63 54 18,61
7 2,70 23 8,56 39 13,96 55 18,91
8 3,08 24 8,91 40 14,28 56 19,20
9 3,46 25 9,26 41 14,60 57 19,49
10 3,84 26 9,60 42 14,92 58 19,78
11 4,21 27 9,95 43 15,24 59 20,07
12 4,58 28 10,29 44 15,55 60 20,36
13 4,95 29 10,63 45 15,87 61 Unused
14 5,32 30 10,97 46 16,18 62 Unused
15 5,69 31 11,31 47 16,49 63 Unused
16 6,05 32 11,65 48 16,80 64 Unused
DuraNAV – Hardware Manual
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Notes about the Audio Input and Audio Output signals
The DuraNAV includes some audio circuitry that is useful for typical vehicles applications. Here is a list of the
audio signals available and their use:
• MIC_IN/LINE_IN: this can be used for a Microphone or Line-in; the Microphone signal is fed to an
amplifier with gain selectable 1X or 10X. Then the signal goes into three audio recording inputs: the
Microphone input of AC97 CODEC, the Line input of the same AC97 CODEC, and the MIC1 input of
the GSM module. Use what best fit your needs.
For a short distance installation, a microphone can be connected using the MIC_IN and the other
signals MIC_SUPPLY and GND_MIC. For longer distances, the best approach is to input a Line-level
signal using an external amplifier.
• LINE-OUT-L and LINE-OUT-R: these can be used as Line-out for left and right speaker amplifier. This
signal comes directly from AC97 CODEC.
• HEADPH_L and HEADPH_R: these can be used to connect a pair of headphones. Audio signals that
come from the GSM or AC97 (see table 4) are fed to a dual audio power amplifier that is capable of
delivering 250mW per channel. The audio sources for left and right channels are different and
selectable, this gives the user an easy way to use the VOIP.
VOIP applications and Preferred use of Audio signals
The main problem when using VOIP is that the AC97 CODEC has to be used for public messages and the
(separate) private conversations of operator.
The separation of public messages and private conversations can be done on a channel basis (A) or on a
time-slot basis (B).
A: Separation on a Channel basis relies completely on software. Use the LINE-OUT-R or the HEADPH_R for
the public announces, and connected to external speakers. Use the LINE-OUT-L or the HEADPH_L for the
private conversations using VOIP, and connected to operator’s headphone.
Keep the signal MX_GSM_CODEC High. The stereo settings in AC97 Codec have to be separate, and the
audio file to be played has to be built separated and managed properly.
B: For the time-slot basis, the software uses the signal MX_GSM_CODEC to turn-off the Right speakers
when making a private conversations. Refer to the table below:
Signal MUX_GSM_CODEC = High MUX_GSM_CODEC = Low
HEADPH_L GSM AC97 Codec Line-out Left
HEADPH_R AC97 Codec Line-out Right None
Table 4. Audio source for HEADPH_L and HEADPH_R
When the application has to support the VOIP and wants to use the time-slot basis, use the Headphone
audio output in this way:
Use the HEADPH_R for the public announcements and connected to external speakers.
Use the HEADPH_L for the private conversations using VOIP and connected to operator’s headphone.
The software must set MUX_GSM_CODEC to high when playing a public message, and set
MUX_GSM_CODEC to low when making a call using VOIP. The stereo settings in AC97 CODEC can be
joined with the audio files to play and can be simple mono or stereo.
DuraNAV – Hardware Manual
20
M3: 28pin Female Circular Plastic Connector
M3 is a Female 28pin Circular Plastic Connector that carries the signals for the following:
• VGA Port
• Second USB 1.1 host port
• Reserved pins for optional MNFLX module
1
4
9
15
21
26
Figure 10. M3 Female Circular Connector
Pin # Signal Usage Description Direction
1 MNFLX-IO_1 MiniFlex In/Out 1 Module specific
2 MNFLX-IO_2 MiniFlex In/Out 2 Module specific
3 MNFLX-IO_3 MiniFlex In/Out 3 Module specific
4 MNFLX-IO_7 MiniFlex In/Out 7 Module specific
5 MNFLX-IO_8 MiniFlex In/Out 8 Module specific
6 MNFLX-IO_5 MiniFlex In/Out 5 Module specific
7 MNFLX-IO_6 MiniFlex In/Out 6 Module specific
8 MNFLX-IO_4 MiniFlex In/Out 4 Module specific
9 GND MiniFlex Ground ▬
10 Reserved Reserved Reserved ▬
11 Reserved Reserved Reserved ▬
12 Reserved Reserved Reserved ▬
13 USB2_+5V USB 2 +5 Volts ◄
14 NC - Not Connected ▬
15 USB2_D- USB 2 Data - ◄►
16 USB2_D+ USB 2 Data + ◄►
17 GND_USB2 USB 2 Ground ▬
18 Reserved Reserved Reserved ▬
19 CTR B VGA Blue ►
20 CRT G VGA Green ►
21 CRT R VGA Red ►
22 GND VGA Ground ▬
23 Reserved Reserved Reserved ▬
24 GND MiniFlex Ground ▬
25 HSYNC VGA Horizontal sync ►
26 MNFLX-IO_12 MiniFlex In/Out 12 Module specific
27 VSYNC VGA Vertical sync ►
28 MNFLX-IO_11 MiniFlex In/Out 11 Module specific
Table 5. M3 Connector Pinout
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