Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 Asset-Link 250 User Manual Installation and Operating Instructions Revision: 1.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 Record of Changes Version 1.0 1.1 1.2 CSI Wireless©2004 Date 11/24/03 06/17/04 07/19/04 Title or Brief Description Initial Release Revised No Audio Specifications subject to change without notice Entered By C. Carver L. Yu L.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 Definitions Action Almanac Asset Power Baud Battery Power Ears-On Ears-Off Ephemeris Exception Fix Page Supply Power Typical 2-D 3-D CSI Wireless©2004 A programmed response to an exception. A subset of orbital parameters from the GPS satellite ephemeris used to calculate approximate satellite positions and velocities. External power provided by the host vehicle or asset. A unit of measurement specifying the signaling rate (Signals/Sec).
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 Table of Contents 1 INTRODUCTION.............................................................................................1-8 1.1 PURPOSE..........................................................................................................1-8 1.2 SCOPE ..............................................................................................................1-8 1.3 ASSET-LINK PRODUCT NUMBERING ..........................................
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 3.5 PIC SERIAL DATA OUTPUT ............................................................................. 3-6 3.6 PIC SERIAL DATA INPUT ................................................................................ 3-6 4 AMPS/GSM CONNECTOR SPECIFICATIONS............................................ 4-1 4.1.1 4.1.2 4.1.3 4.1.4 4.1.5 4.1.6 5 GPS CONNECTOR SPECIFICATIONS ......................................................... 5-1 5.1.1 5.1.2 5.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 List of Figures Figure 1 Typical Asset-Link Unit Deployment........................................................................ 1-10 Figure 2 Asset-Link Functional Block Diagram ....................................................................... 2-1 Figure 3 - Operating Mode Transitions ...................................................................................... 2-9 Figure 4 Vehicle Battery Voltage Drops During Engine Start.....
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 1 Introduction 1.1 Purpose This document describes the basic user guide for the operation of the ASSET-LINK™ family of products. 1.2 Scope This manual describes the relevant hardware and firmware features in the necessary detail for Telematics system developers. The primary interface with the product firmware is based on a proprietary CSI Wireless communications interface called PDI (Packet Data Interface).
Asset-Link 250 User Manual 970-00047 1.4 July 19, 2004 Rev. 1.2 Referenced Documents 1.4.1 CSI-Wireless documents: 970-00050 AVL 2004 User Manual (Asset-Link 4XX Series) 910-00044 PDI Interface Manual, Asset-Link and AssetVision 1.4.2 Public Documents or Standards GPS ICD-200C-004 NAVSTAR GPS Navigation User Interface Definition (12 April 2000) TIA/EIA/IS-91 Mobile Station – Base Station Compatibility Standard for 800 MHz Analog Cellular. October 1994.
Asset-Link 250 User Manual 970-00047 1.5 July 19, 2004 Rev. 1.2 Operational Overview The Asset-Link series of products, extends the product family from CSI Wireless to the original Asset-Link 200 product. The Asset-Link provides a comprehensive range of features for vehicle management, remote diagnostics, control and positioning at an affordable price.
Asset-Link 250 User Manual 970-00047 1.6 July 19, 2004 Rev. 1.2 System Product Features The Asset-Link product has the following major features • Power management system for controlling power consumption on wide variety of vehicles and equipment with 12 volt or 24 volt electrical systems. • GPS position determination, with more than 60 days of position storage in memory. • Integrated AMPS Class 3 Cellular Radio.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 2 Product Description nvSRAM Flash RS232 Txvr GPS Rx FCP (ARM7) Serial Tx/Rx D B 2 5 Audio 5V reference CAN Bus 4 ADC 8 GPIO (SPI) 1 UART 2 Relay Drivers Asset Pwr PIC I/O uController GSM Radio Modem D B 9 8-36V Power Supply AMPS Radio Figure 2 Asset-Link Functional Block Diagram 2.1 Detailed System Description The following sections provide a description of the various system components.
Asset-Link 250 User Manual 970-00047 2.2 July 19, 2004 Rev. 1.2 Mechanical Dimensions The Asset-Link enclosure for the product will be approximately 5.8” x 3.4” x .9” to the outside of the connectors. 2.3 GPS Receiver The Asset-Link incorporates a low power integrated twelve-channel GPS receiver. The GPS receiver is designed by CSI-Wireless utilizing the SiRFstarII LP GPS architecture, which includes acquisition accelerator and multi path mitigation hardware.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 error, VDOP – vertical error and TDOP – time error) affects fix accuracy but not fix update rate, only time to first fix (TTFF). Cold Start TTFF < 45 seconds (avg.) Warm Start < 38 seconds (avg.) Hot Start < 8 seconds (avg.) SiRF Definition A condition in which the GPS can arrive at a navigation solution without initial position, time, current ephemeris, and almanac data.
Asset-Link 250 User Manual 970-00047 • • July 19, 2004 Rev. 1.2 GPS receiver status (antenna feed line fault, not detected, number of satellite vehicles tracking) GPS tracking for each satellite vehicle (azimuth, elevation, average carrier/noise, ephemeris available, code locked, carrier pull-in, acquisition failed, bit synchronization, sub-frame synchronization).
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 2.4.2 FCP Operating Modes The following description of the four operating modes and power management is a very general description of the Asset-Link programming. Application providers can and should develop their own specific configuration to maximize connectivity and minimize battery consumption.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 I/O timer Configurable between 2 s to 65535 s Ears-On Timer Configurable between 2 s to 65535 s GPS warm-up timer Configurable between 0 to 255s GPS fix duration timer Configurable between 0 to 65535s I/O inputs poll rate (Power off mode) Configurable 2 to 63 s Note: nominal supply voltage range should be 8-36V DC. 2.4.2.1 FCP Sleep Mode Operation In the Sleep Mode, the only section doing any processing is the Real Time Clock (RTC).
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 Note: GPS receiver can be set to always ON when in Active mode. In this case the two GPS timer will not take effect in the transition from Active mode to Sleep mode, i.e., once the Ears-On timer and I/O timer expire, Asset-Link will transition to Sleep mode. 2.4.2.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 The Active Mode allows the Asset-Link to operate at different power levels based on configurations that are programmed for specific operating requirements. In most configurations, the Asset-Link will enter this mode from “Full-Power” immediately upon detecting the vehicle’s switched ignition circuit going to OFF (normally applied to one of the digital inputs).
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.
Asset-Link 250 User Manual 970-00047 • • • • • • • • July 19, 2004 Rev. 1.2 GPS (fix updates, constraint regions, constraint groups) Cellular module (Standby for CSD connection or MicroBurst® messages transmission and receiving) Check power supply voltage Check digital, analog and LCP inputs.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 • The conditioning of an external +8 to +36 volt power supply source. • Over-current protection on the supply inputs. • Over-voltage and under-voltage protection on the supply inputs. • Reverse voltage application protection • Internal +5, 4.2, 3.6, 3.3 and 1.8 volt regulation. • Power supply voltage sensing to support mode transitions. • A low current draw in Sleep mode to maintain vehicle batteries. 2.5.
Asset-Link 250 User Manual 970-00047 • • • • July 19, 2004 Rev. 1.2 Signaling System 7 (SS7) network, which authenticates devices and transports IS-41 signals – including the MicroBurst™ data packets – between Aeris.net’s central hub facility and the cellular carrier switches. Internet and dedicated TCP/IP data links provide transport for the data traffic between the Aeris.net hub and application host facilities, from which the endpoint devices are remotely monitored and controlled Aeris.
Asset-Link 250 User Manual 970-00047 3 July 19, 2004 Rev. 1.2 Application I/O Connector Specifications The Asset-Link makes use of a DB-25 connector that is accessible by the user on the outside of the chassis for general-purpose I/O features. 3.1 Application I/O Connector Type and Pinout The DB-25 application I/O connector can be either a compact right angle (Kycon type K31-B25S-NJ or equivalent) or vertical style (Kycon type K85-BD-25S) depending on the manufacturing SKU.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 Table 3-1 DB-25 Application I/O Connector Pin-Out 3.2 Power Input Specifications 3.2.1 Power Requirements The Asset-Link unit operates from either a 12V or 24V DC electrical system over a permissible range as shown in Table 3-2 and Table 3-3.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 ground. Do not use the same grounding terminal for this connection as for both wires leading from pins 24 and 12. The use of two connections to the vehicle negative is a safety feature, and using only one terminal will negate that safety feature. Do not attempt to use the grounding braid on the FAKRA SMB connector as a grounding method as removal of these connectors will remove the Asset-Link chassis grounding.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 The Asset-Link will function after the subsequent rise of Power Supply voltage back to over 7.2 volts. 3.2.9 Power Supply Engine Start Disturbances System Battery Bus Voltage +V sys +6V for12V system +12V for 24V system +4V for12V system +9.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 3.2.11 Power Supply Connector Load Dump The Asset-Link will meet specifications after being subjected to the waveform shown in the figure below. A total of ten (10) load dump pulses will be applied to the AssetLink at a rate of 1 pulse every 10 seconds. After completion of the test, the AssetLink must pass a room temperature functional test.
Asset-Link 250 User Manual 970-00047 3.3 July 19, 2004 Rev. 1.2 Relay Driver Specifications These output pins are designed to operate an automotive relay similar to Bosch Automotive relay, type VF4-45F11-S01, or electrical equivalent. The relay coil positive is to be connected to the vehicle positive through a fused connection, and an integral flyback diode on the relay coil is recommended.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 4 AMPS Connector Specifications The cellular connector is either a standard right angle male FAKRA SMB connector. The shell of the connector is connected to the Asset-Link ground. The center pin of the connector is for the AMPS Cellular Class III transceiver input and output at 50 ohms nominal impedance. The AMPs cellular connector is designed to be connected to an antenna of less than 3 dBd gain, to meet safety standards.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 4.1.4 Cellular Center Pin Short To Ground or Open Protection The Asset-Link cellular Center Pin has protection for application of a connection to “Ground” or a “Open”without damage to the cellular transmitter electronics. For this test, the shell of the connector is ground. 4.1.5 Cellular Center Pin Over Current Protection The Asset-Link cellular Center Pin has a high impedance to ground.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 5 GPS Connector Specifications The GPS connector is a standard female FAKRA SMB connector. The shell of the connector is connected to the Asset-Link chassis. The center pin of the connector is for the GPS receiver input and output at 50 ohms nominal impedance. The GPS connector is designed to be connected to an antenna with an integral Low Noise Amplifier (LNA) for GPS signals. 5.1.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 5.1.5 GPS Connector Center Pin Over Current Protection The Asset-Link GPS Center Pin has a 15ohm DC impedance to 3.6 volts when operating, and a high impedance when not operating.. Do not apply external voltages to this pin. 5.1.6 GPS Connector Center Pin ESD Protection The Asset-Link GPS connector Center Pin will NOT withstand an Electrostatic Discharge (ESD) of ±15Kv.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 6 Antennas Asset-Link can be used with a number of different tri-band antennas (AMPS&GPS). The product is be designed to the following minimum requirements: 6.1 • No damage caused by transmissions an open or short in the cellular antenna or cable. • No damage caused continued operation with a GPS open or short. • The GPS will not be functional with an open/short on its antenna connector.
Asset-Link 250 User Manual 970-00047 6.2 July 19, 2004 Rev. 1.2 GPS Antenna Parameter Type Polarization Antenna Gain Frequency Active Gain VSWR Noise Figure Nominal Impedance Amplifier Bias Voltage Connector Current draw Operating Temperature Specification Low Noise with Active Amplifier RHC 4dBic 1,575.42 MHz, ±10 MHz 5 dBiC antenna, 27+/-2dB dB active amp <1.5:1 1.5 dB Max 50 ohms 3.3 VDC, ±10% FAKRA SMB (Key K – Curry Yellow) 40 mA max.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 7 Environmental Specifications 7.1 Environmental Specifications Parameter Relative Humidity Storage Temperature Operating Temperature Rating 5% to 95% non condensing -40 to +85 -30 to +70 Unit %R.H.
Asset-Link 250 User Manual 970-00047 7.2 July 19, 2004 Rev. 1.2 Vibration and Drop Test Requirements 7.2.1 Vibration The Asset-Link has been tested to the swept sine vibration profile defined for cab mounted equipment shown in figure A1 of SAE J1455, shown below. The test duration was 180 minutes for each axis. The Asset-Link passed a functional test at the conclusion of the Vibration test.
Asset-Link 250 User Manual 970-00047 7.3 July 19, 2004 Rev. 1.2 EMC Requirements The Asset-Link meets the needs of a “stealth” or in-vehicle device, in that radiated energy from the chassis or connected wires is very low. The Electromagnetic Compatibility (EMC) of the Asset-Link for a vehicular application and for use in commercial applications has been approved. 7.3.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 8 Installing Asset-Link in a Vehicle Asset-Link is typically, “stealth mounted”. In other words, the antenna and unit are not obvious nor easily discoverable when installed. Such an installation poses two challenges: locating the unit so it can be easily accessed for reconfiguring or removal, and positioning the combo antenna “under the sky” for maximum satellite coverage. 8.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 Urban canyons in large cities—a combination of tall buildings, reflective exteriors and narrow streets—may cause varying periodic outages regardless of the antenna type. (As will covered parking or thick overhead foliage.) The above checklist will help installers select the optimum antenna location and antenna type. Antenna Location Warning Antenna location is critical for optimal GPS performance.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 to develop their own installation manuals that may include installation details for specific wiring harnesses, sensors and any other peripheral Asset-Links. The installation of the Antenna and cable is challenging—it is difficult to conceal the antenna and still achieve good radio performance.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.2 Install Asset-Link so that the connector is accessible (after installation) for maintenance and servicing. Access to the connector is a diagnostic requirement. When selecting a location consider both the ease of mounting and the environmental conditions that the Asset-Link will be subjected to.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.
Asset-Link 250 User Manual 970-00047 July 19, 2004 Rev. 1.
