DRAFT SNM941 CONNECTED SITE GATEWAY INSTALLATION GUIDE Version 1.
DRAFT Legal Notices – Reorient or relocate the receiving antenna. Corporate Office – Increase the separation between the equipment and the receiver. Trimble Inc. 935 Stewart Drive PO Box 3642 Sunnyvale, CA 94085 USA www.trimble.com Civil Engineering and Construction Trimble Inc. 10368 Westmoor Drive Westminster, CO 80021 USA 800-538-7800 (toll free in USA) +1-937-245-5600 Phone +1-937-233-9004 Fax www.trimble.com Copyright and Trademarks © 2017, Trimble Inc. All rights reserved.
DRAFT Notice to Our European Union Customers WEE For product recycling instructions and more information, please go to www.trimble.com/Corporate/Environmental_Compliance.aspx. Recycling in Europe: To recycle Trimble WEEE (Waste Electrical and Electronic Equipment, products that run on electrical power.), Call +31 497 53 24 30, and ask for the "WEEE Associate".
DRAFT Safety Information 1 Before you use the Trimble® SNM941 Connected Site® Gateway, ensure that you have read and understood all safety requirements. C WARNING – This alert warns of a potential hazard which, if not avoided, could result in severe injury or even death. C CAUTION – This alert warns of a potential hazard or unsafe practice that could result in minor injury or property damage or irretrievable data loss.
DRAFT Contents Legal Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Installing antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Wiring notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1 Introduction . . . . . . . . .
DRAFT Telematics installation wires configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Brown connector pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Earthworks, 8-pin connector pinouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Recommended DC electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DRAFT 1 Introduction 1 Welcome to the SNM941 Installation Guide. This document describes how to install and verify initial operation of the SNM941. It is necessary, even for an experienced installer, to review this entire manual in order to become familiar with the special features that differentiate the SNM941 from any other telematics device. If you are not familiar with GNSS or vehicle telematics, visit the Trimble website (www.trimble.com) for an interactive look at Trimble and these technologies.
DRAFT 1 | Introduction Technical support If you have a problem and cannot find the information that you need in the product documentation, contact your local dealer. Else, go to the Support area of the Trimble website (trimble.com/Support/Technical_Support.aspx). Select the product you need information on. Product updates, documentation, and any support issues are available for download.
DRAFT 2 Overview 2 ► Exterior description ► Electrical harness connector ► Antenna connectors ► Mounting provisions ► Electrical harness This chapter introduces the Trimble SNM941 Connected Site® Gateway. These units make it easy to receive status information from all types of construction assets, to effectively manage them, and to link assets to back office applications.
DRAFT 2 | Overview Exterior description The Trimble SNM941 device is a rugged telematics and data communications appliance. The device enclosure is made of heavy duty aluminum. The front of the device contains the electrical harness connector (see page 12) and antenna ports (see page 11). The bottom of the device includes the four mounting through-holes (see page 12).
DRAFT 2 | Overview Electrical harness connector The electrical harness connector is a 34-pin weatherproof electrical connector with a mechanical locking system. For a description of the connector signals and wiring harness configuration, see Chapter 6, SNM941 Wiring Harness. Some machine installations may use a specialized wiring harness depending on the telematics features available on that particular machine.
DRAFT 2 | Overview Wi-Fi antenna connector - RP-TNC jack 4-In-1 antenna GNSS antenna connector - SMA jack Cellular antenna connector - TNC jack Figure 2.2 Cellular antenna connector - RP-SMA jack 4-In-1 antenna (P/N 112057) Mounting provisions The SNM941 and antenna is intended to be mounted directly to the asset that is being monitored, with the exception of the machine chassis.
DRAFT 3 Recommended Tools and Supplies 3 ► Tools ► Supplies Every SNM941 installation will vary due to unique features of the asset being equipped. The tools and supplies listed below are the absolute minimum required to complete an SNM941 installation. A complete mechanic’s field tool kit is preferred. NOTE – Holes will most likely need to be drilled into the machine for installation purposes.
DRAFT 3 | Recommended Tools and Supplies Tools • Mechanic’s socket set • Mechanic’s open-end wrench set • Assorted screw drivers • Digital multimeter • Drill • Assorted metal drill bits Supplies • (4) ¼" or 6 mm fasteners – either nuts and bolts with suitable washers (stainless steel is preferred) or self-tapping screws • Tie wraps • Electrical tape • Cable sheathing such as split loom Optional additional supplies may include SNM941 mounting brackets, antenna mounting brackets, and shock mounts.
DRAFT 4 4 Installation ► General installation approach ► AccuGrade/GCS900 gateway device installation ► Trimble Earthworks gateway device installation ► Complete the device connections This chapter describes the general procedure to install an SNM941 device and its necessary peripheral devices. Trimble assumes you have a basic knowledge of mechanical and electrical technical operations. For a list of recommended tools and supplies for installation, see Chapter 3, Recommended Tools and Supplies.
DRAFT 4 | Installation General installation approach In general, the installation is a simple process, however, failure to follow correct installation guidelines will result in a non-functional or dysfunctional unit. Before starting the installation process, consider the following guidelines: • Installation length of components and length of connection wires to main unit.
DRAFT 4 | Installation Guidelines for antenna mounting – adhesive mount 1. The cure time to reach full strength at room temperature is 24 hours. The longer it can be mounted before being placed into service, the better. 2. Cure time is longer for environments 10° C (50° F) to room temperature. 3. Adhesive mounting should not be attempted below 10° C without supplemental heat. 4.
DRAFT 4 | Installation b. Fastener mounting option 2: – Fasteners from above into mounting plate tabs – Sized for M6 Fasteners – Quantity of 3 used at a minimum c. Fastener mounting option 3: – Fasteners from above into mounting plate tabs – Sized for M6 Fasteners – Quantity of 3 used at a minimum d.
DRAFT 4 | Installation AccuGrade/GCS900 gateway device installation Determine the mounting location of the SNM941 device The SNM941 can be installed in various locations; however the recommended location is in the cab or a side compartment, but not the engine compartment, to allow for: • ease of access • increased security • a minimal distance from the antennas and control box to the main unit.
DRAFT 4 | Installation Determine the location of the 4-In-1 antenna The antenna locations will have a significant effect on the performance quality of the SNM941 device. • Mount antenna with the face of the antenna horizontal with the open sky, in an area that has a clear 360° view of the sky and is at least 20 cm from all other transmitting antennas, the operator and any other occupant, while still allowing the antenna cables to easily reach the SNM941.
DRAFT 4 | Installation Trimble Earthworks gateway device installation Determine the mounting location of the SNM941 device The SNM941 can be installed in various locations; however the recommended location is near the cab roof-line, typically with the SNR radio.
DRAFT 4 | Installation • Mount the SNM941 side-by-side with the SNR radio: mount off existing SNR bracket, or on isolated cab structure, as shown: Determine the location of the antenna The antenna location will have a significant effect on the performance quality of the SNM941 device.
DRAFT 5 Locating the R Terminal 5 The location of the R terminal differs depending on the alternator used in the machine. If you cannot locate the alternator’s R terminal, contact a qualified service technician for that machine. The following are some examples of different alternators used in heavy machines, and the location of the R terminal.
DRAFT 5 | Locating the R Terminal In situations in which an alternator pictured above is not applicable, R terminal can be determined by using a voltage meter. Clip the Alternator Wires (be careful to do this far enough from the alternator to repair the wire and make the final connection). The alternators typically have 3 outputs. To determine the R-terminal look for a wire that shows all of the following behavior: • No voltage when the machine is off.
DRAFT 6 SNM941 Wiring Harness 6 ► SNM941 wiring harness ► Telematics installation wires configuration ► Brown connector pinouts ► Earthworks, 8-pin connector pinouts ► Recommended DC electrical specifications This chapter describes the SNM941 wiring harness and electrical connections in detail.
DRAFT 6 | SNM941 Wiring Harness SNM941 wiring harness The SNM941 wiring harnesses are 186940-02 for AGCS systems and 201641-46 for Earthworks. They derive the best available power from the Brown connector. For telematics the harness may need to be modified to change the power input wires from the Brown connector and re-routed to the appropriate power source.
DRAFT 6 | SNM941 Wiring Harness P4 - Three socket connector Connect to CANbus P5 - Brown connector P1 - 34-pin connector Connect to corresponding brown connector on GCS900 or AccuGrade harness Connect to bulkhead on the SNM941 The following table describes the conductors in the Wiring harness kit.
DRAFT 34-Pin Connector Signal Description 6 | SNM941 Wiring Harness 186940-02 201641-46 Wire Color Termination Wire Color Termination 26 Ethernet RX- Blue J4 -Brown Connector - Pin 8 Blue J2 - 8 Pin Connector - Pin 4 27 Ethernet RX+ Brown J4 -Brown Connector - Pin 7 Brown J2 - 8 Pin Connector - Pin 3 29 RS-232 RX Orange J4 -Brown Connector - Pin 3 N/A 32 RS-232 Ground Green J4 -Brown Connector - Pin 11 N/A Pin numbers not listed above are not connected in the wiring harness.
DRAFT 6 | SNM941 Wiring Harness Telematics installation wires configuration The following table describes the conductors in the electrical harness: Conductor ID Conductor Pin Number* Signal description Connection A 5 Key Switch Input An electrical accessory circuit that becomes active when the asset’s key switch is moved to the “accessory” and “run” positions. Required to initialize the SNM941 as soon as an operator activates an asset.
DRAFT 6 | SNM941 Wiring Harness Conductor ID Conductor Pin Number* Signal description Wire color Connection G 24 Digital Input 2 Blue Optional – A sensor that provides a ground signal when a monitored situation occurs. If not used connect to ground or let float. This can be an open circuit or short circuit to ground, i.e. when the monitored state occurs the signal should be ground.
DRAFT 6 | SNM941 Wiring Harness Pin Function GCS900 SNM941 186940-02 6 Ethernet TXD- Yes Yes 7 Ethernet RXD+ Yes Yes 8 Ethernet RXD- Yes Yes 9 CAN Low (GCSCAN0) Yes No 10 RS-232 TX Display, RX Radio (AGCS RS-232-0) Yes Yes 11 RS-232 Ground No No 12 Typically unswitched power. Power is always available (may not be applicable to all base kits). Some Yes For more information on the nature of the signal connections, see Recommended DC electrical specifications, page 32.
DRAFT 6 | SNM941 Wiring Harness Earthworks, 8-pin connector pinouts The following table describes the configuration of the pinouts. Pin Function 1 Battery + 2 Power Ground 3 Ethernet RX+ 4 Ethernet RX- 5 Ethernet TX- 6 Ethernet TX+ 7 Keyswitch Power 8 N/A Recommended DC electrical specifications Item Symbol Min. Typ. Max.
DRAFT 7 Installing the SIM Card 7 Many versions of the SNM941 device come with a Trimble-supplied SIM card. In some circumstances, such as needing a high data rate plan for a grade control system, you may need to replace this standard SIM card with another. This chapter details how to successfully replace the SIM card. Before changing the SIM card, contact your local Trimble SNM941 dealer to determine if a different SIM is necessary.
DRAFT 7 | Installing the SIM Card 6. Carefully remove the SIM card taking care not to touch the gold connectors. 7. To install new SIM card: a. Hold the SIM card with the notch side going in first and the gold contacts facing down towards the PCB. b. Insert into the slot and then gently push in, to trigger the locking mechanism. NOTE – The SIM card will not insert completely into unit. This is normal. NOTE – It is recommended to use only industrial grade SIM card with 2FF form factor.
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