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Micronet SmartHubL T E Underdash

On Board Computer

Hardware Guide

Revision 1, July 2018

Summary of content (29 pages)

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Micronet SmartHub L T E Underdash On Board Computer Hardware Guide Revision 1, July 2018
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Important Notice © 2018 Micronet Ltd. All rights reserved. Micronet Ltd. Reserves the right to alter the equipment specifications and descriptions in this publication without prior notice. No part of this publication shall be deemed to be part of any contract or warranty unless specifically incorporated by reference into such contract or warranty. The information contained herein is merely descriptive in nature, and does not constitute a binding offer for the sale of the product described herein.
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Introduction Table of Contents Table of Contents Table of Contents........................................................................................................................ 3 Revision History.......................................................................................................................... 4 Safety Precautions ...................................................................................................................... 5 1. Introduction .......................
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Introduction Overview ..................................................................................................................................21 Interface Connectors ..................................................................................................................21 Main Connector Pinout ................................................................................................................22 Pinout by Functionality .........................................................
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Introduction Safety Precautions Safety Precautions Read the following safety precautions before installation or operation. WARNING! Abnormal Conditions Should the SmartHub Underdash become hot, start to emit smoke or a strange odor, immediately turn off the power and contact your original dealer or authorized service provider. Continued usage is dangerous and may result in fire or electric shock.
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Introduction Micronet SmartHub-U Platform Overview 1. Introduction Micronet SmartHub-U Platform Overview Micronet SmartHub Underdash is a rugged, next generation Android On-Board Telematics Computer. It provides a rugged and versatile vehicle-centric mobile-computing platform for a variety of in-cab mobility applications and solutions.
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Introduction GSD™ Software Services  A2D and Digital input signals for ignition switch control and other I/Os  Digital control output signals Wireless Module The Micronet SmartHub Underdash supports 3.5G and 4G LTE cellular communication and GPS. GSD™ Software Services Micronet’s GSD™ (Guardian System Design) is a cloud-based SaaS platform for managing mobile devices in the field.
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Introduction Development Tool Kit Development Tool Kit Micronet's SmartHub Underdash Development Package provides all the tools required for product evaluation, application development quick-start, and product testing. The Developers Package contains all essential hardware and software components as described in the following sections.
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Micronet SmartHub-U Views Micronet SmartHub-U Front View 2. Micronet SmartHub-U Views This chapter describes the SmartHub Underdash views and the functionalities on each view.
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Micronet SmartHub-U Views Micronet SmartHub-U Bottom View  Mounting Cradle, on page 11 Micronet SmartHub-U Bottom View LED indicator Reset Button Figure 3: Micronet SmartHub Underdash Front Panel View For more information about the Micronet SmartHub Underdash bottom panel view, see:  LED Indicator, on page 14  Reset Button, if needed, a reset button resets the SmartHub Underdash and reboots depends on the ignition switch input state. Rev.
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Micronet SmartHub-U Views Micronet SmartHub-U Bottom View Micronet SmartHub-U TOP View Micro SIM and MicroSD Cards Compartment Figure 4: Micronet SmartHub Underdash Top Panel View For more information about the SmartHub Underdash top panel component, see:  MicroSD Memory Card Slot, on page 14  MicroSIM card slot, on page 18 Micronet SmartHub-U Mounting Cradle Mounting Cradle The SmartHub Underdash mounting cradle is used for mounting the OBC under the vehicle dashboard or any place in the vehicle c
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Micronet SmartHub-U Views Micronet SmartHub-U Bottom View Hooks on one side of the cradle and a screw are used to mount the device inside the cradle. Before hooking the OBC, the MicroSIM and optionally MicroSD card should be insert on the dedicated compartment on the top side of the device. The cradle has six holes to assemble under the dashboard of to another place.
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Functional Details Platform Core 3. Functional Details Platform Core Operating System The SmartHub Underdash OBC is powered by Google AndroidTM 5.1.1 Lollipop. ELD Compliance The Micronet SmartHub Underdash system boot time is ~40 seconds. The ELD requirement is up to 1 minute. Application Development Environment The SmartHub Underdash OBC supports any open source IDE. Micronet recommends using the Android Studio IDE.
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Functional Details User Interface Flash Memory 8GB eMMC MicroSD Memory Card Slot The MicroSD card slot is located on the Micronet SmartHub Underdash top panel cards compartment. Watchdog To monitor mission-critical processes, the platform provides an intelligent watchdog mechanism. This mechanism provides various capabilities for guard and restarts the OBC if the system hangs. The Android provides a level of watchdog mechanism by the "Applications Manage" to control application stability.
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Functional Details Sound Figure 7: Customized Logo Sound Speakers The SmartHub Underdash OBC provides external speaker connection through the main cable harness. Microphone The SmartHub Underdash OBC provides external speaker connection through the main cable harness. Communication Interfaces Serial Communication The SmartHub Underdash OBC supports 4 serial communication ports for external devices and peripheral connections and a debug port connected to the Co-Processor.
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Functional Details Communication Interfaces Debug Serial Port (COM7) The SmartHub Underdash OBC supports EIA-RS232 level serial communication port for Co-Processor debugging purposes. The port supports a baud rate of 300 to 115,200bps, and provides the TX and RX signals only. USB Communication The SmartHub Underdash OBC supports two USB ports (Universal Serial Bus), one USB Host port for external device/peripheral connections, the second USB is a USB Client.
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Functional Details Wireless Communication NOTE: INP1 is also used to power on the device from shutdown state. For proper power management implementation, the input should be connected to the vehicle's ignition switch. Open Collector Outputs The SmartHub Underdash OBC provides four O.C output lines for external peripheral control. Wireless Communication Wireless LAN Overview The SmartHub Underdash OBC provides a Wireless Local Area Network (IEEE 802.11) module.
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Functional Details Wireless Communication Cellular Modem The Micronet SmartHub Underdash OBC provides cellular modem with the following bands:  3.5G GSM for Europe - B8/900 and B3/1800, DC-HSPA+ B1/2100 and B8/900 bands.  4G AT&T LTE for NA - AT&T and T-Mobile B2 1900MHz, B4 AWS1700MHz, B5 850MHz, B12/B13 700MHz; 3G B2 1900MHz, B5 850MHz MicroSIM card slot The GSM modem requires a MicroSIM card connection. The MicroSIM card slot is located on the top panel compartment of the OBC.
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Functional Details Accelerometer Accelerometer The Micronet SmartHub Underdash OBC provides an Accelerometer, Compass and Gyroscope module. The accelerometer is an electromechanical device used to measure acceleration forces. Such forces may be static like the continuous force of gravity or, as is the case with many mobile devices, dynamic to sense movement or vibrations. Acceleration is the measurement of the change in velocity or speed divided by time.
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Main Cable Harness SAE J1708 4. Main Cable Harness Every customer designs its main cable according the main connectors on the SmartHub Underdash PCBA describes in Interface Connectors section below. In addition, Micronet provides engineering cable design for its customers if necessary, the customers can manufacture the cable according Micronet's scheme or according to their design. Figure 8: SmartHub Underdash OBC Interface connectors Rev.
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Connector Signals Map Overview 5. Connector Signals Map Overview This chapter describes the SmartHub Underdash OBC interface connectors and signals found on the main and secondary connectors. The following abbreviations are used:  I - Input signal  O - Output signal  B - Bus signal  V - Voltage signal  G – Ground  P – Positive  N – Negative Interface Connectors The SmartHub Underdash OBC interface contains Molex Pico-Clasp™ Wire-to-Board Header 1.00 mm pitch 20 and 50 pin connectors.
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Connector Signals Map Main Connector Pinout Figure 10: Main 20 pin connector Main Connector Pinout The following table lists the main 20 pin connector signals by pin number.
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Connector Signals Map Main Connector Pinout Pin  16  17  15 Signal Type Function USB Host 1 D- B USB Host Port1 Data- J1708 N N J1708 Negative Signal USB Host 1 D+ B USB Host Port1 Data+ Specifications USB 2.0 USB 2.0 18 SWC I/O CAN Single wire CAN 19 USB Host 1 GND G Ground USB 2.0 20 GND G Ground Pinout by Functionality The following table lists the 20 pin connector signals by functionality.
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Connector Signals Map Secondary Connector Pinout Pin  20  11 Signal Type GND G GND G   Function Ground Specifications  Ground Secondary Connector Pinout Pinout by Pin Number The following table lists the 50 pin connector signals by pin number.
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Connector Signals Map Secondary Connector Pinout Pin 13   15  16-19 20  21  22  23  24-40 14 Signal Type Function I Digital Input 7 G Ground GND G Ground GND G Ground G Ground Automotive Input N/A GND N/A N/A GND N/A 41 USB OTG +5V V USB OTG VBUS 42 GND G Ground 43 USB OTG D- B USB OTG Data- 44 GND G Ground 45 USB OTG D+ B USB OTG Data+ 46 GND G Ground USB OTG ID B GND G Ground USB OTG GND G Ground GND G Ground  48  49  47 50 Specificatio
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Connector Signals Map Secondary Connector Pinout Pin Signal Type Function Specifications Typical Min Max Input Low: VIL 0V -30V 6V Input High: VIH 12V-24V +8V +30V 3 Automotive Input I Digital Input 2 5 Automotive Input I Digital Input 3 Typical Min Max Input Low: VIL 0V -30V 6V Input High: VIH 12V-24V +8V +30V 7 Automotive Input I Digital Input 4 Typical Min Max Input Low: VIL 0V -30V 6V Input High: VIH 12V-24V +8V +30V 9 Automotive Input I Digital Input 5 Typical Min Max Input Low:
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Platform Power Overview 6. Platform Power Overview The SmartHub Underdash power comes directly from the vehicle's 12V/24V DC battery and provides intelligent power management options that reduce drain on the vehicle’s battery. Super Capacitors The SmartHub Underdash has a super capacitor inside to:  Provide power backup if the main power source is disconnected.  Provide power backup during an ignition event (vehicle start up).
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Platform Power Super Capacitors Electrical Installation Procedure 1. Prepare the wiring for power and all other required peripherals in the vehicle, for connection to the SmartHub Underdash main harness cable. 2. Connect the main harness cable 20 pins and 50 pins Molex connectors to the SmartHub Underdash connectors inside the cable compartment. 3. The power signals from the main harness cable should be connect to the vehicle's power line protected by a 10A fuse.
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FCC Statement Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.