CrossCheck® GPRS 1900 Installation Manual F Part Number 47770-00-ENG Revision A August 2002
Corporate Office Hardware Limited Warranty Trimble Navigation Limited 645 North Mary Avenue Post Office Box 3642 Sunnyvale, CA 94088-3642 U.S.A. Phone: 1-408-481-8940, 1-800-545-7762 www.trimble.com Trimble Navigation Limited products are warranted against defects in material and workmanship for a period of one year. The warranty period shall commence thirty (30) days after shipment from Trimble's factory. Warranty service will be provided at a designated Trimble Service Center.
Warranty Remedies Trimble's sole liability and your exclusive remedy under the warranties set forth above shall be, at Trimble’s option, to repair or replace any Product or Software that fails to conform to such warranty (“Nonconforming Product”), or refund the purchase price paid by you for any such Nonconforming Product, upon your return of any Nonconforming Product to Trimble in accordance with Trimble’s standard return material authorization procedures.
Limitation of Liability – Increase the separation between the equipment and the receiver. TRIMBLE’S ENTIRE LIABILITY UNDER ANY PROVISION HEREIN SHALL BE LIMITED TO THE GREATER OF THE AMOUNT PAID BY YOU FOR THE PRODUCT OR SOFTWARE LICENSE OR U.S.$25.00.
Contents About this Manual Related Information . . . . . . . Technical Assistance . . . . . . Your Comments. . . . . . . . . Notes, Cautions, and Warnings . Abbreviations . . . . . . . . . . 1 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi . xii . xiii . xiii . xiv Introduction. . . . . . . . . . . . . . . . . . . . . . .
Message Terminal Port . . . . . . . . . . . . . . . . . . . . . . Inspecting and Unpacking the Shipment . . . . . . . . . . . . . . . . Installer-Supplied Parts . . . . . . . . . . . . . . . . . . . . . . . . . Mounting the CrossCheck GPRS . . . . . . . . . . . . . . . . . . . . Connecting CrossCheck GPRS to the Vehicle Chassis . . . . . Direct Connection through Mounting Screws . . . . . Connection through the Chassis Ground Wire . . . . . Choosing the GPS Antenna Mounting Location . . . . . . . . . . . .
GPS Receiver Operation . . . . . . . . . . . . . . . . . . . . . . . . 63 A Specifications Introduction . . . . . . . . . . . . Standard Components . . . . . . . Environmental Specifications . . . I/O Characteristics . . . . . . . . Accessories (ordered separately) . CrossCheck GPRS Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
vi ii CrossCheck GPRS 1900 Installation Manual
List of Figures Figure 1.1 Figure 2.1 Figure 2.2 Figure 2.3 Figure 2.4 Figure 2.5 Figure 2.6 Figure 2.7 Figure 2.8 Figure 2.9 Figure 2.10 Figure 2.11 Figure 2.12 Figure 2.13 Figure 2.14 Figure 2.15 Figure 2.16 Figure 2.17 Figure 2.18 Figure 2.19 Figure 2.20 Figure 2.21 Figure 2.22 Figure 2.23 CrossCheck GPRS 1900 Mobile Unit and Accessories . . . CrossCheck GPRS Connections . . . . . . . . . . . . . . . Power and Discrete I/O Pinout . . . . . . . . . . . . . . . . Message Terminal Pinout . . . . . . . . .
Figure 2.24 Figure 2.25 Figure 2.26 Figure 2.27 Figure 2.28 Figure 2.29 Figure 3.1 x Pulse Counting Input Circuit Diagram . . . . . . . . . . . . . . 49 Output Circuit Diagram. . . . . . . . . . . . . . . . . . . . . . 50 EchoLDX Message Terminal to CrossCheck GPRS Connections 51 Power and I/O Cable . . . . . . . . . . . . . . . . . . . . . . . 53 Power Management Connections . . . . . . . . . . . . . . . . . 55 Continuous Power Connections . . . . . . . . . . . . . . . . .
About this Manual Welcome to the CrossCheck® GPRS 1900 Installation Manual. This manual describes how to install, set up, and troubleshoot the CrossCheck GPRS 1900 product. Note – The CrossCheck GPRS 1900 does not support the IQEventEngine™ firmware used by other CrossCheck products and does not support the TAIP protocol.
About this Manual Other sources of related information are: • Release notes – the release notes describe new features of the product, information not included in the manuals, and any changes to the manuals. The release notes are available for download from the above Web address. • The Fleet Management and Mobile Asset Tracking section of the Trimble Web site – application notes, technical notes, and other useful product information are available from this site.
About this Manual Your Comments Your feedback about the supporting documentation helps us to improve it with each revision. To forward your comments, send an email to ReaderFeedback@trimble.com. Notes, Cautions, and Warnings Notes, cautions, and warnings are used to emphasize important information. Note – Notes provide additional significant information about the subject to increase your knowledge, or guide your actions.
About this Manual Abbreviations The following abbreviations are used in this manual: Abbreviation Definition AVL Automatic Vehicle Location CrossCheck CrossCheck GPRS 1900 may be referred to simply as CrossCheck GPRS or CrossCheck. EchoLDX or MDT The EchoLDX Message Terminal is referred to as the EchoLDX or sometimes as the Mobile Data Terminal (MDT).
CHAPTER 1 Overview In this chapter: ! Introduction ! The CrossCheck GPRS 1900 Mobile Unit ! CrossCheck GPRS Applications ! The Global Positioning System ! GPS Receiver 1
1 Overview 1.1 Introduction This manual describes the CrossCheck GPRS 1900 Mobile Unit which is designed to be used with Trimble’s Telvisant™ Wireless Gateway (TWG) for Fleet Asset Management and Automatic Vehicle Location (AVL) purposes. The CrossCheck GPRS runs the firmware necessary to communicate with the TWG and automatically reports location-based information such as position, speed, and direction, and when the vehicle stops or exceeds a specified speed.
Overview 1.2 1 The CrossCheck GPRS 1900 Mobile Unit The CrossCheck GPRS 1900 Mobile Unit is housed in a single, compact enclosure that simplifies installation and provides greater reliability. This package is a mobile communications system module for Automatic Vehicle Location (AVL) and fleet asset management applications. It operates over the GPRS cellular network and allows simple, fast, and efficient transfer of information between a vehicle and Trimble’s Web-based gateway.
1 Overview The CrossCheck GPRS includes the following: • Eight-channel GPS receiver • A sophisticated event handler that allows the CrossCheck GPRS to be configured over the air (OTA) to respond to a wide variety of dispatch and fleet asset management operations • One serial port for Messaging operation when using the Trimble EchoLDX Message Terminal (P/N 46722-00) • Extensive discrete I/O inputs, pulse counters, and outputs for vehicle peripheral support • Configurable Zone Logic Configuration p
Overview 1.2.3 1 Antenna Requirements GPRS and GPS antennas are required for operation. Bulkhead and magnetic mount GPS and GPRS antennas are available from Trimble. Chapter 2 describes the antennas and antenna installation. The standard CrossCheck GPRS configuration does not include a GPS or GPRS antenna because the type of antenna required depends on the application. Antennas must be ordered separately. For more information, see Appendix A, Specifications. 1.2.
1 Overview CrossCheck GPRS GPRS Antenna 1 GPS Antenna 4 5 3 EchoLDX 2 Ignition Sense Figure 1.
Overview 1.3 1 CrossCheck GPRS Applications The Trimble Mobile Solutions (TMS) Division provides you with the core products around which you can build systems and applications for managing your transport and logistics assets. TMS products and services address the need for an end-to-end solution. They provide the building blocks at both ends of the asset management system including the on-board units mounted in the vehicle and the Trimble Web-based gateway for dispatch and control applications anywhere.
1 1.4 Overview The Global Positioning System The Global Positioning System (GPS) is a satellite-based navigation system operated and maintained by the U.S. Department of Defense. GPS consists of a constellation of 24 satellites providing world-wide, 24-hour, three-dimensional (3D) coverage. Although originally conceived for military needs, GPS has a broad array of civilian applications including timing, surveying, fleet management, marine, land, aviation, and vehicle navigation.
CHAPTER 2 Installation ! Introduction ! Installing the CrossCheck GPRS Mobile Unit ! CrossCheck GPRS Connections ! Inspecting and Unpacking the Shipment ! Installer-Supplied Parts ! Mounting the CrossCheck GPRS ! Choosing the GPS Antenna Mounting Location ! Routing the GPS Antenna Cable ! Choosing a GPRS Cellular Antenna Mounting Location ! CrossCheck GPRS Power ! Installing the EchoLDX Kit 2
2 2.1 Installation Introduction This chapter presents instructions for installing the CrossCheck GPRS 1900 Mobile Unit in a vehicle. C Warning – The CrossCheck GPRS and its antennas and accessories should only be professionally installed by Trimble Authorized dealers. Warning – For 1900 MHz PCS: A minimum separation distance of 20 cm must be maintained between the antenna and the person for this device to satisfy the RF exposure requirements of the FCC.
Installation 2.3 2 CrossCheck GPRS Connections This section describes the CrossCheck GPRS component connections. Figure 2.1 shows the CrossCheck GPRS connections. 2 1 3 4 5 1. GPRS cellular antenna connector (TNC receptacle) 2. SIM Slot 3. Message Terminal port (DB9 receptacle) 4. GPS antenna connector (SMA receptacle) 5. Power and discrete I/O Figure 2.1 CrossCheck GPRS Connections C 2.3.1 Warning – The SIM card provided with the CrossCheck GPRS must not be removed.
2 2.3.2 Installation Power and Discrete I/O Pinout Table 2.1 lists the pinout for the power and discrete I/O signals. Table 2.
Installation 2 Figure 2.2 illustrates the power and discrete I/O pinout. 16 14 12 10 8 6 4 2 15 13 11 9 7 5 3 1 Figure 2.2 2.3.3 Power and Discrete I/O Pinout GPS Antenna The GPS antenna uses an SMA receptacle (SMA-r) connector. For more information, see Appendix A. 2.3.4 Message Terminal Port Figure 2.3 illustrates the Message Terminal port pin configuration, a standard 9-pin DCE configuration. 5 4 9 Figure 2.
2 Installation Table 2.2 lists the Message Terminal connector pinout. Table 2.2 2.4 Message Terminal Connector Pinout Pin Signal Connection 1 DCD Output: Carrier Detect 2 RxD Output: Serial Data 3 TxD Input: Serial Data 4 DTR Input: Data Terminal Ready 5 GND Ground 6 DSR Output: Data Set Ready 7 RTS Input: Request to Send 8 CTS Output: Clear to Send 9 PWR Output: 12 VDC @ 200 mA max. (Interpreted as RS-232 high-level.
Installation 2 Table 2.3 identifies the CrossCheck GPRS part numbers and the included components. Table 2.
2 2.6 Installation Mounting the CrossCheck GPRS The CrossCheck GPRS can be installed inside almost any type of vehicle and in any orientation. It can be installed in an enclosed compartment or in a location with limited accessibility, as long as the environmental specifications are maintained to ensure reliable operation. For example, the CrossCheck GPRS can be installed on the floor under a seat, or on a wall behind a seat.
Installation 2 The integral mounting flange is designed to secure the CrossCheck GPRS to a flat surface. The flange has four holes for securing the unit with fasteners. 2. I Use self-tapping screws or machine screws to secure the unit to the mounting surface. Caution – Over-stressing the plastic mounting surface when tightening the mounting screws can crack the plastic.
2 Installation The installer must provide an appropriate selection of fasteners to secure the CrossCheck GPRS to the mounting surface. • • 2.6.1 When using self-tapping screws: – Select an appropriate size and length for the mounting surface. – The hole size leaves some allowance for holes drilled slightly off center from the specified dimensions. When using machine screws: – Trimble recommends the use of number m3.5 (or number 6) pan-head machine screws.
Installation 2 Direct Connection through Mounting Screws To mount the CrossCheck GPRS 1900 Mobile Unit on a metal surface that is permanently attached to the vehicle chassis (for example, the base of the trunk, or a mounting plate that is permanently attached to the chassis using metal screws): 1. Fasten down the CrossCheck GPRS using metal screws driven through the metal tabs on the sides of the unit. 2. Use star washers to ensure a reliable electrical contact to the metal tabs. 3.
2 2.7 Installation Choosing the GPS Antenna Mounting Location Antenna location is critical for optimum GPS performance. When choosing a location for the GPS antenna, consider these guidelines: • The antenna has an unobstructed view of the sky. • The antenna is safe from damage during normal vehicle operation and maintenance. • The antenna is not shielded from satellite signals by metal objects or other impenetrable materials.
Installation 2 Additional guidelines to follow include: • Mount the antenna in a horizontal position facing the sky, as shown in Figure 2.5. If the antenna must be located in the vicinity of other antennas (radio, cellular phone), locate the GPS antenna at least 46 cm (approximately 18 in.) away. • Avoid areas of high vibration (for example, engine hoods). For permanent installations, choose a location with access both above and below the antenna-mounting surface.
2 Installation Figure 2.5 shows typical antenna-mounting locations for an automobile. Best Performance Figure 2.
Installation 2 Figure 2.6 shows the typical antenna mounting locations for a van. 1 Best Performance the GPS antenna should be mounted in a location with a clear unobstructed view of the sky 2 Reduced Performance - avoid locations where the antenna does not have a . clear unobstructed view of the sky 3 Unacceptable Locations 1 3 2 Figure 2.
2 Installation The antenna can be mounted under a fiberglass wind deflector such as those used on conventional and cab-over trucks as shown in Figure 2.7. Make sure the wind deflector is not painted with a metallic finish. Note: Must be fiberglass Figure 2.7 Antenna Mounted under Fiberglass Canopy Note – The GPS antenna may be subject to performance degradation when covered by a heavy layer of snow or ice.
Installation 2.7.1 2 Miniature BulkHead GPS Antenna with Flange (P/N 31192-00) Two cables are available for the Miniature Bulkhead Antenna with Flange: • A straight TNC-Plug-to-SMA-Plug antenna cable (P/N 36107) • A right-angle TNC-Plug-to-straight SMA-Plug antenna cable (P/N 36106) For more information, see Appendix A. Figure 2.8 shows the Miniature Bulkhead GPS antenna mounting. Mounting Lug Gasket Cable Figure 2.8 Mounting hardware. Only two of four sets shown for clarity.
2 Installation To mount the Miniature Bulkhead GPS antenna with Flange: 1. Drill holes in the mounting surface using the antenna mounting template shown in Figure 2.9. 19 mm (3/4 in) 7.6 cm (3 in) 3.8 mm (5/32 in) Figure 2.9 Mounting Hole Dimensions 2. Slip the antenna through the larger hole in the center of the hole pattern and rotate the antenna until the four holes in the antenna mounting flange are aligned to the hole circle. 3. Secure the antenna with the four screws, lock washers, and nuts.
Installation 2.7.2 2 Miniature Bulkhead GPS Antenna without Flange (P/N 32434) Two cables are available for the Miniature Bulkhead Antenna without Flange: • A straight TNC-Plug-to-SMA-Plug antenna cable (P/N 36107) • A right-angle TNC-Plug-to-straight-SMA-Plug antenna cable (P/N 36106) Check the metal thickness at the mounting location before drilling the mounting hole. The bulkhead mount on the antenna is designed to attach to metal surfaces with a thickness of 4.8 mm (0.1875 in.) or less. Figure 2.
2 Installation To mount the antenna: 1. Choose the antenna mounting location (see Choosing the GPS Antenna Mounting Location on page 20). 2. Drill a 3/4 inch hole at the mounting location. 3. Remove the large nut from the bottom of the antenna. 4. Mount the gasket as shown in Figure 2.10. 5. Slip the antenna through the mounting hole, and secure it with the large nut. 6. Connect the antenna cable as shown in Figure 2.10. 7. Route the cable to the CrossCheck GPRS mounting location. 8.
Installation 2 Figure 2.11 illustrates the miniature antenna. Figure 2.11 Miniature Magnetic GPS Antenna To mount the Magnetic GPS Antenna: 1. Choose the antenna mounting location (see Choosing the GPS Antenna Mounting Location on page 20). 2. Mount the antenna to a ferrous surface. 3. Route the antenna cable. The antenna features a permanent antenna cable which must be routed to the location where the CrossCheck GPRS is mounted.
2 2.8 Installation Routing the GPS Antenna Cable The Magnetic GPS Antenna has an integral antenna cable, and the Miniature Bulkhead GPS Antennas have separate cables. If you are using one of the Miniature Bulkhead GPS Antennas, attach the antenna cable to the connector on the base of the antenna prior to routing the cable. When routing the cable, start at the antenna and choose the most direct path to the CrossCheck GPRS while observing the following guidelines: • Make sure that at least 5.1 cm (2 in.
Installation 2.9 2 Choosing a GPRS Cellular Antenna Mounting Location C Warning – The CrossCheck GPRS and its antennas and accessories should only be professionally installed by Trimble Authorized dealers. Warning – For 1900 MHz PCS: A minimum separation distance of 20 cm must be maintained between the antenna and the person for this device to satisfy the RF exposure requirements of the FCC. For fixed-mount operation, the antenna co-location requirements of Section 1.
2 Installation Maintain a separation of at least 46 cm (or approximately 18 in.) between the cellular (or other) and GPS antennas (as illustrated in Figure 2.12). GPS Antenna Figure 2.12 46cm (18 in) minimum Cellular Antenna Distance Between Antenna Locations In general, the greater the separation, the less chance of interference. For permanent antenna installations, choose a location with access both above and below the antenna mounting surface.
Installation 2.9.1 2 Magnetic Mount 850/1900 Cellular Antenna (P/N 46764) The Magnetic Mount 850/1900 Cellular antenna and Magnetic Base (see Figure 2.13) is designed for temporary mounting on any ferrous surface. Magnetic Mount 850/1900 Cellular Antenna Magnetic Base Figure 2.13 Magnetic Mount 850/1900 Cellular Antenna The antenna features a 3.6 m (12 ft.) integral coaxial cable terminated with a TNC-P connector, which is compatible with the CrossCheck GPRS’s Cellular Antenna connector.
2 Installation To mount the Magnetic-Mount 850/1900 Cellular Antenna: I 1. Select an appropriate location to mount the antenna. The center of the vehicle’s roof is the best location. 2. Thoroughly clean and remove all dust and gritty material from the surface where the mount is to be placed (each time it is installed). 3. Using the antenna base as a handle, place the edge of the mount on the clean surface area. Slowly lower the mount towards the surface until it snaps into place. 4.
Installation 2.9.2 2 Bulkhead Mount 850/1900 Cellular Antenna (P/N 47771) The Bulkhead Mount 850/1900 Cellular antenna is designed to be permanently mounted on the vehicle. Bulkhead Mount Cellular Antenna Figure 2.
2 Installation To install the antenna: 1. Drill a 19 mm (3/4 in.) hole through the vehicle’s metal surface. 2. Carefully remove burrs from the underside of the hole and remove paint in a narrow ring around the hole (see Figure 2.15). Use a deburring tool to remove all burrs from the interior and exterior of hole. Assure that the o-ring seating surface is free of scratches. Figure 2.15 Burr Removal and O-Ring Seal Surface Inspection Note – Use care to avoid scratching the top surface of the hole.
Installation 4. Feed the coax and serrated part of the mount (mounting assembly) through the hole (Step 1, Figure 2.16). 1 Figure 2.16 2 Mounting the Antenna Cable Assembly 5. 6. Pull up on the locking nut and slip the mount step into proper alignment in the hole (Step 2, Figure 2.16). Re-install the brass nut from the exterior of the vehicle (Figure 2.17). 3 Figure 2.
2 Installation 7. a. Turn the brass nut until the cable mounting assembly is secured in place. The brass nut must make metal-to-metal contact with the vehicle's sheet metal to allow the o-ring to seal properly. b. Use a spanner wrench or long-nose pliers to hold the mounting assembly. Then use an adjustable or open-end wrench on the locking nut and tighten firmly. Place the rubber gasket over the brass nut (Step 5, Figure 2.18). 5 Figure 2.18 Attaching the Antenna to the Cable Assembly 8.
Installation 2 Figure 2.19 shows the antenna before and after assembly. Figure 2.19 9. Attaching the Bulkhead Mount 850/1900 Cellular Antenna Route the antenna cable to CrossCheck GPRS using the guidelines provided in Routing the Cellular Antenna Cable on page 44. 10. Cut the antenna cable to remove any extra slack, and install the TNC connector on the cable end, following the manufacturer’s recommendations.
2 2.9.3 Installation Glass Mount 850/1900 Cellular Antenna (P/N 47773) The Glass Mount 850/1900 Cellular Antenna is designed for permanent installations mounted on the vehicle’s window. Figure 2.
Installation 2 To install the antenna: 1. C I Select an appropriate location to mount the antenna. Corners of the rear window or a side window are often best. Warning – Do not mount the antenna where it can obstruct the driver’s visibility. Caution – Avoid installing the antenna: - on curved glass. - on glass with metallic content (that is, passivated glass: “solar coat” or “solar cool”). Check with auto manufacturer.
2 Installation Figure 2.21 42 Underside of Glass Antenna 3. Prepare outside mounting area by swabbing enclosed liquid adhesion “enhancer”. Allow enhancer to dry completely before applying outside coupler. 4. Peel the protective liner from the adhesive tape on the outside coupler. With index arrow pointing up, mount the outside coupler starting at the top and rolling downward. From the inside of the window, check that the adhesive is making contact with edges and corners.
Installation 7. I 2 Position the swing arm and whip to the vertical position and tighten cap bolt at swing arm/coupler connection. Caution – After installation, do not install whip or expose to water for 24-72 hours.
2 2.9.4 Installation Routing the Cellular Antenna Cable The Magnetic Cellular antenna has a 3.65 m (12 ft.) integral antenna cable with a TNC-plug (TNC-p) connector. The Bulkhead Cellular antenna has a 5.1 m (17 ft.) integral cable and the Glass Mount Cellular antenna has a 4.5 m (15 ft.) integral cable; both cables are terminated without a connector. After routing the Bulkhead Cellular or Glass Cellular cable, it must be fitted with a TNC-p connector before attaching the cable to the CrossCheck GPRS.
Installation 2.9.5 2 Connecting the Magnetic Cellular Antenna Cable After routing the Magnetic Cellular Antenna cable, connect the cable to the TNC connector on the front panel of the CrossCheck GPRS. Tighten the connector firmly to prevent loosening caused by normal vehicle vibration. 2.9.6 Connecting the Permanent or Glass-Mount Cellular Cable Once the cable routing is complete and the cable is secured attach the TNC connector on the antenna cable.
2 2.9.7 Installation Connecting the Power and I/O Cable Use the flexible power and I/O cable (PN 46598) to connect power and a variety of input and output peripherals to the CrossCheck GPRS as shown in Figure 2.22. 2 4 6 8 10 12 14 16 1 3 5 7 9 11 13 15 Front View Connector Molex Micro-Fit 3.0 16-Pin Molex P/N 43025-1600 Side View 1 Vbatt Red 2 GND Black Batt.
Installation 2 Table 2.4 provides pinout information for the Power and I/O cable. Table 2.4 Power and I/O Cable Pinout Pin Signal Color Termination Length (in.
2 2.9.8 Installation Inputs (IP0 to IP3) The CrossCheck GPRS supports four discrete inputs. The circuit diagram is shown in Figure 2.23. 3.3V 330K 3K Input 470pf Figure 2.23 100K To logic 0.01µF Input Circuit Diagram Input Logic High: Open circuit or Vin > 2.4 VDC Input Logic Low: Vin < 0.8 VDC The inputs must remain in either state for at least 500 milliseconds before the CrossCheck GPRS detects the input.
Installation 2.9.9 2 Pulse Counting Inputs (Pulse 0 to Pulse 2) The CrossCheck GPRS also supports three pulse-counting inputs that can be used to support different sensors like a speed sensor or others for different applications. The circuit diagram is shown in Figure 2.23. 3.3V 330K 3K Input 470pf Figure 2.24 100K To logic 0.01µF Pulse Counting Input Circuit Diagram Input Logic High: Input Logic Low: Open circuit or Vin > 2.4 VDC Vin < 0.
2 2.9.10 Installation Outputs (XP0 to XP2) The CrossCheck GPRS features three discrete outputs (XP0–XP2) for driving external devices such as relays, alarms, and so on. • When inactive (use state), the discrete outputs are tied to vehicle battery voltage (nominally 12 VDC) through a 15 kOhm resistor. • When active, the outputs are shorted to ground through a bipolar junction transistor. In the active (low) state, the outputs can sink up to 200 mA. Figure 2.25 shows a diagram of a discrete output.
Installation 2 Figure 2.26 shows the cable connections between the EchoLDX Messaging Terminal and the CrossCheck GPRS. CrossCheck GPRS Message Terminal Port EchoLDX Power/Data Cable RJ-45 Connector To Serial Port 2 on EchoLDX EchoLDX Figure 2.
2 2.10 Installation CrossCheck GPRS Power The CrossCheck GPRS operates on input voltages from 9–32 VDC. The low-noise amplifier integrated on the GPS antenna draws power from the CrossCheck GPRS through the antenna cable. The CrossCheck GPRS does not require any special power-up or down sequencing. The CrossCheck GPRS’s power circuitry is designed to protect the unit from random power fluctuations and conditions.
Installation 2 Figure 2.27 illustrates the power and I/O cable. 2 4 6 8 10 12 14 16 1 3 5 7 9 11 13 15 Front View Connector Molex Micro-Fit 3.0 16-Pin Molex P/N 43025-1600 Side View 1 Vbatt Red 2 GND Black Batt.
2 Installation The CrossCheck GPRS is protected against both input power overvoltage and reverse polarity. The DC ground line connects to the vehicle’s DC ground. The ignition-sense lead, if connected to a source of ignition-switched battery voltage, senses when the vehicle’s ignition is active. There are three connection options for connecting the power, ground, and ignition-sense wires. These options are described in the next three sections. 2.10.
Installation 2 Figure 2.28 illustrates the Power Management connections. To CrossCheck GPRS Power and I/O Cable Vbatt. Red Figure 2.28 Black Green 2A @ 250V Blade Type Batt. GND Chassis GND GND White IGN IP3 IP2 XP2 IP1 XP1 IP0 XP0 Pulse 0 Pulse 1 Pulse 2 12V Aux Power Management Connections To install the power cable for use with the Power Management feature: 1. Connect the primary power line to a nonswitched/continuous source of DC power, such as the vehicle’s battery. 2.
2 Installation 2.10.2 Continuous Power Connection No Power Management For the Continuous Power connection (see Figure 2.
Installation 2 Figure 2.29 illustrates connections for Continuous Power. To CrossCheck GPRS Power and I/O Cable Vbatt. Figure 2.29 Black Green 2A @ 250V Blade Type Batt. GND Chassis GND GND White IGN IP3 IP2 XP2 IP1 XP1 IP0 XP0 Pulse 0 Pulse 1 Pulse 2 12V Aux Red Continuous Power Connections To connect the power cable to Continuous Power: 1. Connect the primary power line. 2. Connect the ignition-sense line to a nonswitched/continuous source of DC power, such as the vehicle’s battery.
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CHAPTER 3 Operation In this chapter: ! Introduction ! LED Indicators ! GPS Receiver Operation 3
3 3.1 Operation Introduction Once you have installed and configured the CrossCheck GPRS, it is ready for operation. When power is applied, the CrossCheck GPRS operates automatically without user intervention, based on its firmware configuration.
Operation 3.2 3 LED Indicators The CrossCheck GPRS includes two LED indicators: GPS and GPRS. The firmware continuously monitors the GPS receiver and the CrossCheck GPRS operation. Figure 3.1 shows the CrossCheck GPRS LED indicators. GPRS LED (Amber) GPS LED (Green) Figure 3.1 3.2.1 CrossCheck GPRS LED Indicators LED States The GPS and GPRS LED have three states: On, Off, and Blink. When both LED indicators are off, the CrossCheck GPRS’s power is off.
3 Operation LED Power-On Sequence 3.2.2 When the CrossCheck GPRS’s ignition input and power inputs are activated: • The LEDs blink once. • Both turn off for approximately 5 seconds. The GPS LED is on for approximately 2 seconds, then blinks until the first position fix is computed. The GPRS LED blinks until the unit is registered with a GPRS network, at which point the GPRS LED turns on. GPS and GPRS LED States 3.2.3 Table 3.1 identifies the GPS LED states. Table 3.
Operation 3.3 3 GPS Receiver Operation At power-up, the GPS receiver initializes with the last-known position if one is available. Using this information, the GPS receiver acquires satellite signals. • During the satellite acquisition process—which normally requires less than 45 seconds—the green GPS LED blinks. • Once three or more satellites are acquired, the GPS receiver computes positions, course, and speed, and the GPS LED remains on.
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APPENDIX A Specifications In this appendix: ! Introduction ! Standard Components ! Environmental Specifications ! I/O Characteristics ! Accessories (ordered separately) ! CrossCheck GPRS Part Numbers A
A A.1 Specifications Introduction This appendix lists the CrossCheck GPRS Mobile Unit and antenna specifications. A.2 Standard Components The tables include general specifications and requirements for the following: 66 • General Specifications, Table A.1 • Firmware Specifications, Table A.2 • GPS Specifications, Table A.3 • GPS Antenna Requirements, Table A.4 • GPRS Communications Specifications, Table A.5 • Cellular Antenna Requirements, Table A.
Specifications Table A.1 A General Specifications Item Specification Input Voltage 9.0 to 32.0 VDC Current Consumption (typical) Transmitting: with MDT: 340 mA (1.6 A peak) at 12 VDC without MDT: 270 mA (1.5 A peak) at 12 VDC Not transmitting: with MDT: 160 mA at 12 VDC without MDT: 90 mA at 12 VDC Sleepmode: < 10 mA at12 VDC MDT Port (1) RS-232 DCE Serial Port Speed (bps) 9600 Inputs & Outputs Discrete Inputs: (4) switch closures Ignition sense: Off: <0.8 V; On: >2.
A Specifications Table A.2 Firmware Specifications Item Specification Configurable Parameters (Over the Air) Geo-fence area for Job Sites Geo-fence area for Home Sites Entry Speed Limit for Site Dispatch Exit Speed Limit for Site Dispatch Site dispatch time-out Minimum duration time to detect entry/exit regions Automatic status reporting for ready mix applications.
Specifications Table A.3 A GPS Specifications (Continued) First Acquisition Cold start: < 180 seconds in 90% of cases Warm start: < 45 seconds in 90% of cases Reacquisition after 15 seconds of blockage: < 2 seconds in 90% of cases Datum WGS-84 Reacquisition after Signal Loss < 2 seconds in 90% of cases * All GPS receivers are subject to degradation of position and velocity accuracies under Department of Defense imposed Selective Availability (S/A). Table A.
A Specifications Table A.5 GPRS Communications Specifications (Continued) Frequencies Dual band 900/1900 MHz SIM 3 VDC Regulatory Approvals CrossCheck GPRS complies with the European Telecommunications Standards Institute specifications ETS 301 489-1; CE MARK; EC R&TTE Type Examination, FCC Part 15, FCC Part 24, Low Voltage Directive (EN60950), e-mark, PTCRB and Industry Canada requirements.
Specifications Table A.
A Specifications Table A.7 CrossCheck GPRS Mobile Unit Physical Specifications Item Specification Assembly Bottom: Aluminum Top: Injection-molder plastic with integrated shield Size 228 mm W x 121 mm D x 36 mm H (8.97 in. W x 4.76” D x 1.42 in. H) Weight 485 g (1 lb, 1.1 oz.) Connectors MDT: DB9 (receptacle) Power/Ignition + Digital I/O: Molex Micro-Fit 3.
Specifications A.3 A Environmental Specifications The tables in this section list the environmental specifications for the for following: Table A.
A Specifications Table A.9 Miniature Bulkhead GPS Antenna with Flange (P/N 31192-00) Item Specification Size 62.6 mm D x 19.0 mm H (3.5 in. D x 0.75 in. H) Weight 0.13 kg (4.59 ounces) Mounting Hole Circle 762 mm (3.0 in.), 4 holes, 0.6 mm (0.15 in.) Center Mounting Hole 63 mm (0.75 in.) Threaded Nut 63 mm TNC (0.75 in.
Specifications Table A.10 Miniature Bulkhead GPS Antenna without Flange (P/N 32434) (Continued) Casing Dustproof, waterproof, shock-resistant polycarbonate Minimum Gain 28 dBi Maximum Allowable Cable Loss 8 dB Table A.11 A Miniature Magnetic GPS Antenna (P/N 37167) Item Specification Size 40.0 mm W x 47.0 mm D x 13.3 mm H (1.515 in. W x 1.85 in. D x 0.524 in. H) Weight Antenna and cable: 0.13 kg (4.59 ounces) Antenna only: 0.045 kg (1.
A Specifications Table A.12 Magnetic Mount 850/1900 Cellular Antenna (P/N 46764) (Continued) Item Specification Cable Type Coaxial RG-58/U Dual Shield Cable Length 2.65 m (12 ft) Base Size 76 mm (3 in.) Max Height 330 mm (13 in.) Table A.13 Bulkhead Mount 850/1900 Cellular Antenna (P/N 47771) Item Specification Frequency 825-896/ 1850-1990 MHz Gain Cellular: 3 dBd/5.2 dBi (1.5 dBd/3.7 dBi including cable loss) PCS: 3 dBd/5.2 dBi (0.7 dBd/2.
Specifications Table A.14 Glass Mount 850/1900 Cellular Antenna (P/N 47773) Item Specification Frequency 825-896/ 1850-1990 MHz Gain Cellular: 3 dBd/5.2 dBi (1.5 dBd/3.7 dBi including cable loss) PCS: 3 dBd/5.2 dBi (0.7 dBd/2.9 dBi including cable loss) Type Cellular: Collinear PCS: 5/8 over 5/8 over 1/2 wave VSWR (see bandwidth) 2.0:1 or less Power Rating 100 W Color Black Cable Type Coaxial RG-58/U Dual Shield Cable Length 4.057 m (15 ft.) Base Size 44.45 mm X 48.26 mm (1.75 in. X 1.
A Specifications Table A.16 Discrete Inputs: IP0 to IP3 Item Specification Input Logic High Open circuit or Vin > 2.4 VDC Input Logic Low Vin < 0.8 VDC The inputs must remain in either state for at least 500 milliseconds before the CrossCheck GPRS detects the input. Input Current Iin ± 1 mA Input Protection Protected up to at least VBatt continuous Table A.17 Pulse Counter Inputs Item Specification Input Logic High Open circuit or Vin > 2.4 VDC Input Logic Low Vin < 0.
Specifications A.5 A Accessories (ordered separately) The following accessories can be ordered separately: A.
A Specifications Table A.19 Component Part Numbers (Continued) Description Part No.
Specifications Table A.19 A Component Part Numbers (Continued) Description Part No. EchoLDX Power/Data Cable, 2.
A 82 Specifications CrossCheck GPRS 1900 Installation Manual
