Sierra Wireless MP 875 User Manual
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Sierra Wireless MP 875 User Manual

Sierra wireless modem user guide
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MP 875 Modem

User Guide

2130808
Rev 1.1

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Summary of Contents for Sierra Wireless MP 875

  • Page 1: User Guide

    MP 875 Modem User Guide 2130808 Rev 1.1...

  • Page 3: Important Notice

    Note: Some airlines may permit the use of cellular phones while the aircraft is on the ground and the door is open. Sierra Wireless modems may be used at this time. The driver or operator of any vehicle should not operate the Sierra Wireless modem while in control of a vehicle.
  • Page 4 Notwithstanding the foregoing, in no event shall Sierra Wireless and/or its affiliates aggregate liability arising under or in connection with the Sierra Wireless product, regardless of the number of events, occurrences, or claims giving rise to liability, be in excess of the price paid by the purchaser for the Sierra Wireless product.

  • Page 5: Contact Information

    AirCard and “Heart of the Wireless Machine trademarks of Sierra Wireless. Watcher Sierra Wireless, registered in the European Community. Sierra Wireless, the Sierra Wireless logo, the red wave design, and the red-tipped antenna are trademarks of Sierra Wireless. ® Windows is a registered trademark of Microsoft Corporation.
  • Page 6 MP 875 Modem User Guide 2130808...

  • Page 7: Table Of Contents

    Introducing the MP 875 Modem ........
  • Page 8 Resetting the MP modem ........
  • Page 9 Technical Specifications ..........59 Regulatory, radio frequency and electrical specifications .
  • Page 10 MP 875 Modem User Guide 2130808...

  • Page 11: Introducing The Mp 875 Modem

    31.) Rev 1.1 Aug.07 The Sierra Wireless MP modem provides a wireless network connection for portable computers installed in vehicles. The MP modem is usually installed in the vehicle’s trunk and connected to a notebook computer in the passenger compartment.

  • Page 12: Network Connections

    (such as panic buttons) to be installed in vehicles and remotely monitored from a central location. Network connections The MP 875 modem operates over the following networks, with connectivity and speed dependent on your service provider and account: •...

  • Page 13: Accounts And Coverage

    MP modem for the MP modem to operate. (See “Inserting the SIM Card” The ability of the MP 875 modem to obtain service and the type of service obtained in any area is determined by several factors:...

  • Page 14: Supported Gsm Radio Frequencies

    MP 875 Modem User Guide Supported GSM radio frequencies The MP 875 modem has tri-band capability on HSDPA and UMTS networks, operating on: • 850 MHz • 1900 MHz • 2100 MHz and quad-band capability on EDGE and GPRS, operating on: •...

  • Page 15: Vpn Support For Rnap

    Windows operating system. • The firmware that is stored in non-volatile memory. The MP 875 modem has an embedded radio module (a Mini Card 8775), also made by Sierra Wireless, Inc. There are two firmware programs on the MP 875 modem—one stored on the controller board of the MP modem and one on the radio module.

  • Page 16: Documentation

    MP Modem Manager software is available free of charge. To request this software, complete and submit the form at: https://www.sierrawireless.com/product/ mp_modem_mgr_request.aspx. Documentation This MP 875 Modem User Guide describes how to: • Install the MP modem hardware. • Connect the radio and GPS antennas.
  • Page 17 Introducing the MP 875 Modem The MP Modem Manager User Guide (document #2130554) provides information on how to install, configure, and use the MP Modem Manager software to manage a fleet of modems. The Monitoring and Tracking Protocol Guide describes the protocols used in data transmissions between the MP modem and the network server.
  • Page 18 MP 875 Modem User Guide 2130808...

  • Page 19: Hardware And Software

    If any of these are missing, please contact your account manager. Required equipment To install the MP 875 modem, you need the power harness (or existing MP 750 or MP 775 power harness), mounting template, and the screws and washers that come with the device.

  • Page 20: System Requirements

    MP 875 Modem User Guide Note: If GPS is being imple- mented, you require either two antennas or a combination RF and GPS antenna. Note: Do not connect the MP modem to a USB port on a computer before installing the software.

  • Page 21: Installation Overview

    Connector panel The MP 875 modem has the following connectors at the rear of the MP modem: GPS antenna (female SMA)

  • Page 22: Install The Mp Modem

    The MP modem provides support for GPS (Global Positioning System) and for attaching input/output devices. GPS. If you plan to use the MP modem’s built-in GPS module, you must connect a GPS antenna using an antenna cable, or use a combination antenna that can connect to both the GPS and RF connectors on the MP modem housing.
  • Page 23 Never immerse it in any liquid. • If you are replacing a MP modem, you can mount the new MP modem in the same location using the existing mounting holes. •...

  • Page 24: Step 2-Mount The Antennas And Install The Cables

    Figure 2-4: The ground screw connector on the connector panel. Step 2—Mount the antennas and install the cables The MP 875 modem has one RF antenna connector and one GPS antenna connector. The MP modem requires an RF antenna to connect to the wireless network.
  • Page 25 5 dBi (if the antenna operates only on the Cellular band). • The antenna must transmit and receive on the necessary frequency bands in your coverage area. The MP 875 modem supports these RF bands: • HSDPA and UMTS networks: ·...

  • Page 26: Step 3-Install The Power Harness

    USB Host Serial Host RF antenna Figure 2-5: The MP 875 modem’s SMA connector for the GPS antenna (top), and the TNC connector for the RF antenna (bottom). Step 3—Install the Power Harness In a typical installation, the MP modem is connected to the vehicle’s battery with the power harness.
  • Page 27 5 A fuses. The black ground wire is not fused. (See “Ground the power harness” power harnesses are available from Sierra Wireless. Ignition sense on/off wiring The MP modem’s power on/off is controlled by the ignition sense line (white wire) using internal software, rather than a hard on/off switch on the red power line.
  • Page 28 MP modem can be powered on or off even if the key is not in the ignition. The MP modem also has a “Power Off Timer”. When power is removed from the ignition sense wire, the MP modem remains on for the period defined by the Power Off Timer, up to a maximum of 240 minutes.

  • Page 29: Step 4-Connect Mp Modem To Computer Cable To The Mp Modem

    A computer through a USB, Ethernet, or serial port. • Other optional devices through the DB15HD I/O connector. Note: Do not connect the MP modem to the computer until you have installed the software. The MP modem connects to a computer using: •...
  • Page 30 TxD is the transmit data out of the MP modem.) Figure 2-8: Pinouts for an RS232 male DB9 serial cable (left) that connects to the MP 875 modem’s female DB9 serial connector (right). Note that the two figures’ pinouts are mirror images of each other, since they plug together.

  • Page 31: Step 5-Install The Software

    “Configuring the MP Modem to Report GPS and I/O Data” on page 41. Step 5—Install the software Follow these steps to install 3G Watcher and the MP modem driver: Ensure that the computer has the necessary system requirements. (See “System requirements”...

  • Page 32: Step 6-Configure Your Account

    (Access Point Name). Inserting the SIM Card The MP 875 modem has a SIM card slot next to the lights on the indicator panel. The slot is protected by a removable rubber cover, and houses a SIM card sled. To insert a SIM card into the MP modem: Open the rubber cover.
  • Page 33 VPN). You may also require different profiles for different types of data connections, or if you have multiple SIMs. The MP 875 modem allows you to create up to three profiles. Creating a profile 3G Watcher includes pre-defined profiles for many different service providers.
  • Page 34 MP 875 Modem User Guide Complete the following fields: Profile Name · (any meaningful description of the profile, such as the name of your service provider) User Name · Password · , and/or , if applicable. (Check with your service provider for specific requirements for the user name and password.)

  • Page 35: Step 7-Test The System

    > Step 7—Test the system Finally, test the system to: • Confirm that the MP modem can connect to and transmit data over the network. • Confirm that the MP modem can determine its location (if you have connected a GPS antenna).
  • Page 36 MP 875 Modem User Guide 2130808...

  • Page 37: Operating The Mp Modem

    Turning the MP modem on and off The way in which the MP modem is wired determines how it is powered on and off. In most cases the power supply for the MP modem is the vehicle's electrical system and the MP modem is powered on and off in one of these ways: •...

  • Page 38: Reading The Status Indicators

    Power indicator Receive (Rx) Transmit (Tx) indicator indicator Figure 3-1: The indicator panel of the MP 875 modem. The following table shows the behavior of the LEDs during normal MP modem operation: Indicates MP modem is not powered. MP modem is powered and has not acquired network service.

  • Page 39: Resetting The Mp Modem

    MP modem, but it does provide useful status information. Rev 1.1 Aug.07 Resetting the MP modem The reset button for the MP modem is on the top of the housing. To reset the MP modem, press the button until all four indicator lights illuminate.

  • Page 40: Launching 3G Watcher

    Ensure that the SIM card is inserted into the card slot (see “Inserting the SIM Card” on page 32). Start 3G Watcher by choosing Sierra Wireless Inc > 3G Watcher > 3G Watcher double click the desktop shortcut. 3G Watcher window The main 3G Watcher window includes a number of elements that let you control and monitor your MP modem and your connection to the network.

  • Page 41: Configuring The Mp Modem To Report Gps And I/O Data

    MP modem. (The installation requires either two antennas—one RF and one GPS—or a single combination RF/ GPS antenna.) For more information about GPS, see the Primer on GPS Opera- tions (document #2130313) on the Sierra Wireless web site, www.sierrawireless.com.

  • Page 42: Gps Protocols And Commands

    NMEA is a reporting protocol only, while TAIP provides the ability to send commands to the module to query for infor ­ mation and configure reports. When the MP modem is set for TAIP, commands can be sent to the MP modem in these ways: • Using 3G Watcher.

  • Page 43: Gps Taip Quick Reference

    Version Number I/O device installation and configuration The I/O port on the MP modem allows for remote monitoring of gauges, sensors, and alarms. You can use this feature to display readings on instruments or gauges and to remotely monitor panic buttons or alarms.

  • Page 44: Connector Pinouts

    MP modem in one of those states. An example of a digital input device might be a gun rack alarm that sends a signal to the MP modem any time the gun rack is open. Another example would be a panic button that sends a signal to the MP modem when it is pushed.

  • Page 45: Digital Output Devices

    0 VDC and 0.8 VDC. Sinking the input pin to ground yields a logic low (0x00) when the port is polled. If you configure the MP modem to send data to a network server, digital input data can be remotely monitored.

  • Page 46: Analog Input Devices

    MP 875 Modem User Guide A digital output can be connected to two of the pins on the DB15HD connector: Pins 3 and 11. (These can be used for either input or output.) Note: Before using the input/output lines, you must configure them as inputs or outputs.

  • Page 47: I/O Configuration Using At Or 3G Watcher Commands

    Once a sensor, gauge, button, or switch is physically connected to the MP modem, the MP modem must be configured to manage the input from, or output to, the device. This configu ­ ration can be done using either AT commands or using 3G Watcher.
  • Page 48 MP 875 Modem User Guide Analog input setup Tools > Options > MP > Input/Output The Analog Input window ( is used to configure devices on the four analog inputs. Each tab corresponds to a pin: Analog Tab Connector Pin...
  • Page 49 Rev 1.1 Aug.07 Configuring the MP Modem to Report GPS and I/O Data Digital I/O setup The Digital Input/Output window ( Input/Output > Digital I/O ) is used to configure devices on the two digital I/O and two digital input ports. Each tab corresponds to...
  • Page 50 MP 875 Modem User Guide 2130808...

  • Page 51: Sending Data To Your Network Application

    This chapter also explains how to retrieve the Unique Mobile Device ID from the MP modem. This is the number that uniquely identifies each MP modem. Any application that uses the GPS and I/O data from the MP modem requires this number.
  • Page 52 MP 875 Modem User Guide The low rate timer sets the interval at which reports are sent in the absence of any other trigger or timer. It is in minutes with a default of five minutes. The fast rate timer only becomes active when an alarm condition is triggered by a rise or drop in the level of one of the digital I/O channels.
  • Page 53 “MP Modem Manager” Reporting configurations set by sending TAIP commands will be erased if the MP modem is powered off unless the commands are included in the initialization strings for the MP modem. These are executed each time the MP modem is powered on.

  • Page 54: Monitoring And Tracking Configuration

    IP address of the MP modem. However, if NAT (Network Address Translation) is in use, the IP address assigned to the MP modem is likely to be a private IP address. This may present problems, as discussed in the next section.

  • Page 55: The Problem Created By Network Address Translation

    Network Internet Figure 5-1: An MP modem connected to a network server. In this scenario, the IP address is “NAT’d” from 10.95.236.1 to 24.7.6.30. The network server is only aware of the address 24.7.6.30, but if it sends data to that address the...

  • Page 56: Retrieving The Unique Mobile Device Id

    Unique Mobile Device ID from each MP modem you deploy. You may also want to assign a device name to the MP modem that identifies the vehicle in which it is installed. You can assign this name locally using 3G Watcher or remotely using MP Modem Manager.

  • Page 57: Support And Warranty

    Sierra Wireless, Inc. is not liable for any incidental or conse­ quential damages arising from the use, misuse, or installation of the MP modem.
  • Page 58 MP 875 Modem User Guide 2130808...

  • Page 59: Technical Specifications

    7: Technical Specifications Rev 1.1 Aug.07 This chapter provides technical data for the MP 875 modem. Note: The technical specifications are subject to change without notice. Regulatory, radio frequency and electrical specifications Approvals Industry Canada PTCRB EU RoHS Network compliance...

  • Page 60: Environmental Specifications

    MP 875 Modem User Guide Environmental specifications Operating -30°C to +70°C temperature (-22°F to +158°F) Storage -40°C to +85°C temperature (-40°F to +185°F) Humidity 95% RH non-condensing MIL 202G, Sections 103B and 106G Rain / splash MIL 810F, Section 506.4, Procedure III SAE KJ1455, Section 4.4...

  • Page 61: Host Interfaces

    Rev 1.1 Aug.07 Host interfaces Serial One — DB9 female One — USB Type B, USB 1.1/2.0 compliant Ethernet One — RJ45 female Other interfaces Input / output One — High-density DB15 female Network antenna One — TNC female Receive diversity antenna One —...

  • Page 62: I/O Port Characteristics

    MP 875 Modem User Guide I/O port characteristics Absolute maximum voltage -0.3 VDC to 36 VDC Digital I/O count Total: 4; two dedicated inputs, two configurable input/outputs Digital inputs Open collector, max current 500 mA Vih, min 2 VDC Vil, max 0.8 VDC...

  • Page 63: U.s.a

    Rev 1.1 Aug.07 Canada To ensure that the MP modem meets Health Canada’s Safety Code 6 requirements, a separation distance of at least 20 cm (8 inches) must be maintained between the modem’s GSM antenna and the body of the user and any nearby persons at all times and in all applications and uses.
  • Page 64 MP 875 Modem User Guide 2130808...
  • Page 65 Index Numerics Watcher, 39– 40 account, 32 alert rate timer, 51 analog input configuration, 48 wiring, 46 analog sensor, 47 antenna, 24 antenna connector, 21 approvals, 59 AT commands configuration, 47 configuration, 51 unique mobile device ID, 56 audio connector, 21 autolaunch application on high-speed browser on high-speed...
  • Page 66 MP 875 Modem User Guide launch browser automatically on high-speed VPN automatically on high-speed LEDs, 38 low rate timer, 51 manuals, 16 mounting, 22– 24 mounting (the modem), 22 MTP configuring, 51 report frequency, 51 NAT, 55 NMEA, 42 on/off...

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