Sierra Wireless MP 875 User Manual Download Page 59

Page: 59 / 68

Rev 1.1 Aug.07

7: Technical Specifications

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

FCC
Industry Canada
PTCRB
EU RoHS

Network
compliance

GSM
GPRS
EDGE: (Class 12), peak 236 kbps downlink
UMTS: peak 384 kbps uplink/downlink
HSDPA: (Cat 5/6), peak 3.6 Mbps downlink

Voltage range

9–36 VDC

Reverse polarity
protection

Compliant

Current draw

Idle (Ignition sense off): 2 mA

Receive: 235 mA
Max. transmit: 1.0 Amp peak (at +32 dBm, GSM 850)
Max. transmit: 400 mA average (GSM/GPRS/EDGE)
Max. transmit: 500 mA average (at +23 dBm, UMTS)
Typical transmit: 250 mA average (GSM/GPRS/EDGE)
Typical transmit: 350 mA average (UMTS)

Maximum
output power

Conducted transmit power:
GSM 850 and GSM 900: +32 dBm
UMTS: +23 dBm

UMTS/HSDPA

850/1900/2100 MHz

GSM/GPRS /
EDGE

850/900/1800/1900 MHz

a. This applies to a typical installation with a well-matched antenna. All current

values are measured with an input voltage of 12V.

Summary of Contents for MP 875

Page 1: ...MP 875 Modem User Guide 2130808 Rev 1 1 ...

Page 2: ......

Page 3: ...o any form of radio interference In such areas the Sierra Wireless modem MUST BE POWERED OFF The Sierra Wireless modem can transmit signals that could interfere with this equipment Do not operate the Sierra Wireless modem in any aircraft whether the aircraft is on the ground or in flight In aircraft the Sierra Wireless modem MUST BE POWERED OFF When operating the Sierra Wireless modem can transmit...

Page 4: ...91 741 6 199 168 6 339 405 6 359 591 6 400 336 6 516 204 6 561 851 6 643 501 6 653 979 6 697 030 6 785 830 6 845 249 6 847 830 6 876 697 6 879 585 6 886 049 6 968 171 6 985 757 7 023 878 7 053 843 7 106 569 7 145 267 7 200 512 D442 170 D459 303 and other patents pending This product includes technology licensed from QUALCOMM 3G Licensed by QUALCOMM Incorporated under one or more of the following U...

Page 5: ...spective owners Contact Information Consult our website for up to date product descriptions documentation application notes firmware upgrades trouble shooting tips and press releases www sierrawireless com Revision History Revision number Release date Changes 1 1 August 2007 Removed detail about AT command parameters instead directing users to the MP 3G Modems AT Command Reference Document 2130810...

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Page 7: ... Package contents 19 Required equipment 19 System requirements 20 MP Modem accessories 20 Installation overview 21 Install the MP modem 22 Step 1 Mount the MP modem 22 Step 2 Mount the antennas and install the cables 24 Step 3 Install the Power Harness 26 Step 4 Connect MP modem to computer cable to the MP modem 29 Step 5 Install the software 31 Step 6 Configure your account 32 Step 7 Test the sys...

Page 8: ...quick reference 43 I O device installation and configuration 43 Connector pinouts 44 Digital input devices 44 Digital output devices 45 Analog input devices 46 I O configuration using AT or 3G Watcher commands 47 Sending Data to Your Network Application 51 Configuring the MP modem to route data to a server 51 Report frequency timers 51 Monitoring and Tracking configuration 54 IP Addressing 54 The ...

Page 9: ... and electrical specifications 59 Environmental specifications 60 Weight and dimensions 60 Host interfaces 61 Other interfaces 61 GPS specifications 61 I O port characteristics 62 3G Watcher software 62 Regulatory Information 63 Canada 63 U S A 63 Rev 1 1 Aug 07 9 ...

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Page 11: ...e software on page 31 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 A radio frequency RF antenna mounted on the roof of the vehicle enables the MP modem to communicate through a wireless network to a host compu...

Page 12: ...d extremes of temperature experienced in the normal operation of police emergency utility and field service vehicles You can use the network connection provided by the MP modem to access shared data browse the Internet and send and receive e mail and text messages The MP modem also allows for sensors gauges and alarms such as panic buttons to be installed in vehicles and remotely monitored from a ...

Page 13: ...m for the MP modem to operate See Inserting the SIM Card on page 32 The ability of the MP 875 modem to obtain service and the type of service obtained in any area is determined by several factors Network proximity and HSDPA availability To obtain service you must be within the coverage area of a network operating in one of the radio frequency bands supported by the MP 875 modem The type of connect...

Page 14: ...l ports VSPs Three are reserved for internal use by the MP modem The remaining VSP which is called Sierra Wireless Application Interface 2 is assigned to a specific COM port that varies between users This VSP can be used for example to send AT commands or to run applications such as HyperTerminal Special MP modem modes such as GPS that are supported on a serial port are also available on the virtu...

Page 15: ...nce document 2130810 for details Software The MP modem comes with the following software 3G Watcher the software for the MP modem which allows you to manage and monitor your connections The driver that forms the interface between the MP modem and your 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...

Page 16: ...nas Connect a notebook computer and other input output I O devices Install the software Configure the software to use an account and SIM card Interpret the LEDs on the MP modem and the indicators in the 3G Watcher software Configure the MP modem to report GPS and or I O data from sensors gauges or panic buttons Use the MP modem to connect to a network Collect and use GPS and I O data from a fleet ...

Page 17: ...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 It provides the information necessary to develop host applications that process GPS and digital input from a fleet of MP modems For more information contact support sierrawireless com Rev 1 1 Aug 07 17 ...

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Page 19: ...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 You also require A USB Ethernet or 9 pin serial cable This must be long enough to run from the mounting location of the MP modem to the computer The maximum length for the serial or USB cable is 5 5 m 18 feet The USB cable must have a Type A ...

Page 20: ...l grounding If a ground wire is necessary use a 16 gauge wire and connect it to a ground screw I O cable optional This is required if a panic button sensor gauge or other I O device is installed System requirements Before you begin the installation ensure your computer has the following system requirements necessary for the instal lation and running of 3G Watcher software Operating systems Windows...

Page 21: ...following diagram illustrates the overall installation Figure 2 1 Installation of the MP modem in a vehicle equipped with a notebook computer and a combination antenna using the car battery for power and ignition sense wiring for power on off MP Modem housing The MP modem has a rectangular metal housing There is a connector panel on the rear of the housing an indicator panel on the front of the ho...

Page 22: ...lation steps The installation process for the MP modem varies depending on how you plan to use it where it best fits in your vehicle and which of its features you plan to use The main steps are 1 Mount the MP modem 2 Mount the antennas and connect the cables RF antenna and cable GPS antenna and cable if you plan to use GPS 3 Connect the power harness 4 Connect the cable that will run between the M...

Page 23: ...rness on page 28 Route cables to their destinations without using excess wiring Make sure all connectors and the reset button are easy to reach and the indicator lights are visible Mounting procedure To mount the MP modem 1 Use the provided mounting template to mark the location of the mounting holes 2 Drill 5 32 pilot holes unless you are reusing holes from a previous MP modem mounting Use the su...

Page 24: ... to the MP modem This creates a hazard and could cause equipment damage If you cannot properly ground a device a potential solution is to install a fuse in the ground return wire The power harness has 5 A fuses on the red power wire and the white ignition sense wire but not on the black ground return wire See Step 3 Install the Power Harness on page 26 You can also use a ground screw on the connec...

Page 25: ...ellular 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 850 MHz 1900 MHz 2100 MHz EDGE and GPRS networks 850 MHz 900 MHz 1800 MHz 1900 MHz If your MP modem will only be connected to networks that use one of the bands an appropriate single band antenna is sufficient Contact your servic...

Page 26: ...cure the cables as necessary 3 Connect the RF antenna cable to the TNC connector on the rear of the MP modem 4 If you are using GPS connect the GPS antenna cable to the SMA connector on the rear of the MP modem GPS antenna Serial Host USB Host GPS RF Ethernet 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 I...

Page 27: ... the power harness The battery red and ignition sense white wires in the power harness include 5 A fuses The black ground wire is not fused See Ground the power harness on page 28 Replacement 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 of...

Page 28: ...to Accessory mode In this configuration the MP modem is on whenever other vehicle electrical devices can be switched on such as when the radio and windshield fan can run or Separately switched Connect the white ignition sense wire to a separate switch mounted in a convenient location which allows the MP modem to be turned on or off regardless of the position of the ignition key In this configurati...

Page 29: ...ower and ignition sense then using automotive crimp terminals is recommended When using crimp terminals do not leave bare wire exposed Do not use a crimp terminal for more than one wire unless it is designed for that purpose Step 4 Connect MP modem to computer cable to the MP modem The MP modem connects to A computer through a USB Ethernet or serial port Other optional devices through the DB15HD I...

Page 30: ...minal Ready DTR 5 Signal Ground GND 6 Data Set Ready DSR 7 Clear To Send CTS 8 Request To Send RTS Serial Host RF USB Host 9 Ring Indicator RI RxD and TxD are named with respect to the MP modem that is RxD is the Receive Data input to the MP modem and 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 D...

Page 31: ...Step 5 Install the software Follow these steps to install 3G Watcher and the MP modem driver 1 Ensure that the computer has the necessary system requirements See System requirements on page 20 2 Close any Windows applications that are open on your computer 3 Insert the MP modem CD in your CD ROM drive The CD should automatically launch and display a menu If not select Start Run from the Windows ta...

Page 32: ... your service provider should give you the account information needed to configure the MP modem to use the account a user name password and APN 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 1 Open the rubber co...

Page 33: ... at least one connection profile before you can use it to access the Internet Some service providers offer a single profile Some offer separate profiles for separate purposes for example one for web browsing and one to use while accessing a corporate network over a VPN You may also require different profiles for different types of data connections or if you have multiple SIMs The MP 875 modem allo...

Page 34: ...wn list select which application if any you want 3G Watcher to automatically launch when a connection is established with this profile None No application is autolaunched Browser 3G Watcher autolaunches your default Internet browser If you selected Browser in the URL field type the URL for the web site you want to view on connection such as www sierrawireless com MS VPN 3G Watcher autolaunches a V...

Page 35: ...t feature It is also used to establish a connection if you click the Connect button without selecting a profile 9 Click OK For additional information on setting up your 3G Watcher options press F1 to open the 3G Watcher online help or select Help Help Topics 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 th...

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Page 37: ... on The MP modem is powered only when the ignition is on The MP modem is only on when the engine is on or Accessory on The MP modem is powered when the ignition is switched to Accessories This allows the MP modem to be powered when the engine is off or Separately switched The MP modem is connected to a separate on off switch so that it can be turned on and off independently of the engine and vehic...

Page 38: ...dicator Table 3 1 LED operation LED Behavior Indicates Power Off MP modem is not powered Rapid flashing MP modem is powered and has not acquired network service Slow flashing about 1 5 seconds between flashes MP modem has acquired network service On solid MP modem has established a network connection Tx Flashing MP modem is transmitting data Rx Flashing MP modem is receiving data GPS Off GPS modul...

Page 39: ...igure 3 2 The MP modem reset button 3G Watcher software 3G Watcher is the program used to manage and monitor the MP modem For information about installing 3G Watcher see Step 5 Install the software on page 31 3G Watcher allows you to Create and edit connection profiles Enable or disable SIM security that prevents others from using your SIM card if it is lost or stolen Determine signal strength roa...

Page 40: ...odem and your connection to the network Menu bar Full Compact button Service Provider Minimize button Service icon Close button Connection drop down list GPS icon Connect button Establishing connections The connection drop down list on the main 3G Watcher window provides a connection option s depending on your profile s WWAN Name of your service provider Depending on the operating mode and setting...

Page 41: ...how to implement local reporting of GPS and I O data Chapter 5 describes how to configure your MP modem to exchange data with your private network GPS configuration and reporting GPS receivers use an array of orbiting satellites operated by the United States Department of Defense to triangulate their coordinates on the earth s surface In order to use the GPS module in the MP modem a GPS antenna mu...

Page 42: ...AIP 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 Using AT commands TAIP commands can be used to Query the MP modem for its current position heading and speed Enable and disable automatic reporting of GPS data and set the interval at which auto...

Page 43: ... VR 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 This section describes how to connect and configure these I O devices to work with the MP modem Connecting these devices requires that...

Page 44: ...ed do not connect 10 Ground GND 11 Digital Input Output 2 12 Digital input 4 13 Reserved do not connect 14 Analog input 1 15 Analog input 3 Figure 4 1 Pinouts for a male DB15HD I O cable left that connects to the MP modem s female DB15HD I O connector right Note that the two figures pinouts are mirror images of each other since they plug into one another Port specifications See I O port characteri...

Page 45: ...stor provides a high condition when the switch is open The digital input pins report a logic low on an input between 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 Example panic button connections An I O cable for a panic button requires a w...

Page 46: ... the output port Pin 3 or 11 Figure 4 3 Wiring for using Pin 3 digital output as an electronic switch Pin 10 is Ground The digital I O ports provide open collector output to a maximum of 500 mA Analog input devices Analog input devices are those that generate a signal of varying voltage based on the state of an instrument or gauge An example of an analog input device might be a sensor that detects...

Page 47: ...tions An I O cable for an analog sensor requires a wire to one of the analog input pins such as 7 and one wire to the Ground pin 10 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 ...

Page 48: ...ts you are reporting used to convert the raw analog value of zero Full scale Enter the maximum value for the units you are reporting used to convert the raw value of 1023 Current value Shows the resulting converted value using the zero and full scales entered Unit Specify the units of the input volts km h etc up to 20 characters long Example If you are measuring temperature and the thermometer you...

Page 49: ... of the device at logic level low up to 20 characters in length For example if a switch in the off position leads to a logic low you could choose to label it Switched Off Logic high name Describe the state of the device at logic level high up to 20 characters in length such as Switched On Alarm logic level Assign an action associated with the I O port high A notification is sent and the event is l...

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Page 51: ...ber that uniquely identifies each MP modem Any application that uses the GPS and I O data from the MP modem requires this number Configuring the MP modem to route data to a server The protocol that defines how MP modem data is packaged is called MTP Monitoring and Tracking Protocol You can configure MTP in 3G Watcher by selecting Tools Options MP Monitor and Tracking or by using the AT command AT ...

Page 52: ...rate timer is set to 0 a single report is sent when an I O alarm is triggered If the GPS timer is set to a value other than 0 it controls the frequency of reports in the absence of any alarm or event triggers However if the GPS timer is set to a longer interval than the low rate timer the value for the low rate timer will determine report frequency MP Modem Host Fast rate timer 3 seconds Low rate ...

Page 53: ...IP commands to the module locally through 3G Watcher using the AT command AT MPGPSCMD They can also be sent remotely using MP Modem Manager See MP Modem Manager on page 16 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 pow...

Page 54: ... to the MP modem a host application on a network server requires the IP address of the MP modem Service providers usually do not provide a static IP address to each device on the network The IP address is dynamically assigned each time the MP modem registers on the network This means that the host application must identify each MP modem by its Unique Mobile Device ID discussed on page 56 and captu...

Page 55: ...cognize the MTP data and address might be used on data transmissions from many route it appropriately different devices Therefore the network server is only aware of the substituted public IP address If the server replies to this address the network cannot identify the device for which the data was intended Assume for example an MP modem is registered on a network The MP modem is assigned a privat...

Page 56: ...ork The frame relay connection bypasses the address translation and is a method of overcoming NAT issues encouraged by some service providers Retrieving the Unique Mobile Device ID In order to associate GPS and I O data with a particular vehicle you must create a database on your server that links each MP modem s Unique Mobile Device ID to the vehicle in which it is installed The Unique Mobile Dev...

Page 57: ...nsibility of Sierra Wireless Inc under this warranty is limited to either repair or at the option of Sierra Wireless Inc replacement of the MP modem There are no expressed or implied warranties including those of fitness for a particular purpose or merchantability which extend beyond the face hereof Sierra Wireless Inc is not liable for any incidental or conse quential damages arising from the use...

Page 58: ...MP 875 Modem User Guide 58 2130808 ...

Page 59: ...nk Voltage range 9 36 VDC Reversepolarity protection Compliant Current draw Idle Ignition sense off 2 mAa Receive 235 mA Max transmit 1 0 Amp peak at 32 dBm GSM 850 Max transmit 400 mA average GSM GPRS EDGE Max transmit 500 mA average at 23 dBm UMTS Typical transmit 250 mA average GSM GPRS EDGE Typical transmit 350 mA average UMTS Maximum output power Conducted transmit power GSM 850 and GSM 900 3...

Page 60: ...on 4 10 3 1 Shock MIL 202G Section 213B MIL 810F Section 516 5 SAE J1455 Sections 4 10 3 2 and 4 10 3 4 Vibration MIL 202G Section 214 MIL 810F Section 514 5 SAE J1455 Section 4 9 Sand dust bombardment MIL 810F Section 510 4 Procedures I III Salt fog MIL 810F Section 509 4 ESD Operational 6 kV contact as per IEC 61000 4 2 EU RoHS Compliant Weight and dimensions Weight 0 9 kg 2 lbs Height 49 mm 1 9...

Page 61: ...antenna One SMA female Reset One Manual reset button Power One Molex 39 01 0029 female GPS specifications Satellite channels 12 channel continuous tracking Protocols TSIP TAIP NMEA 0183 V3 0 Acquisition times Re acquisition 2 sec Hot start 9 sec Warm start 35 sec Cold start 39 sec Accuracy Horizontal 3 m 50 8 m 90 Altitude 10 m 50 16 m 90 Velocity 0 06 m sec Sensitivity Tracking 152 dBm Acquisitio...

Page 62: ...e input outputs Digital inputs Open collector max current 500 mA Vih min 2 VDC Vil max 0 8 VDC Vih max 36 VDC Digital outputs Open collector Analog input count Total 4 Analog input Zero scale 0 VDC Full scale 3 3 VDC Leakage current 66 µA 3G Watcher software Operating systems laptops Microsoft Windows Vista 2000 and XP Language English French 62 2130808 ...

Page 63: ... maximum RF output power and human exposure to RF radiation the maximum antenna gain including cable loss in the PCS band must not exceed 4 dBi and in the Cellular band must not exceed 5 dBi The antenna must be mounted such that there is a separation distance of at least 20 cm 8 inches between the antenna and the body of the user or any nearby persons Note This equipment has been tested and found ...

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Page 65: ...ctor 21 DB9 connector 21 pinouts 30 DB9 See serial device name 56 dial up connections 13 digital input configuration 49 wiring 44 digital output configuration 49 wiring 45 dimensions 60 documentation 16 E EDGE 13 electrostatic discharge ESD 60 F firewall 55 frequency bands 14 G gauges See I O devices GPRS 13 GPS antenna 25 configuration and reporting 41 43 connector 21 performance 61 GPS timer 51 ...

Page 66: ...e diversity 14 regulatory information 63 report frequency 51 reporting engines 51 reset button 38 39 roaming 13 S sensors See I O devices serial versus USB 14 serial cable maximum length 19 serial connector 21 shock 60 SIM insertion 32 SMA connector 21 specifications 59 62 status indicators 38 T TAIP reporting protocol 42 technical specifications 59 62 temperature operating 60 storage 60 timers re...

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