Sierra Wireless MP 555 Installation guide

Brand: Sierra Wireless

Model: MP 555

Category: Motor vehicle electronics

Type: Installation guide

MP 555 GPS Rugged Wireless Modem

Vehicle Installation Guide

2130297

Rev 2.1

Preface

Rev 2.1 3

Important Notice

(

. When

Jan.05

Due to the nature of wireless communications, transmission

and reception of data can never be guaranteed. Data may be

delayed, corrupted (i.e., have errors) or be totally lost.

Although significant delays or losses of data are rare when

wireless devices such as the Sierra Wireless modem are used in

a normal manner with a well-constructed network, the Sierra

Wireless modem should not be used in situations where

failure to transmit or receive data could result in damage of

any kind to the user or any other party, including but not

limited to personal injury, death, or loss of property. Sierra

Wireless, Inc., accepts no responsibility for damages of any

kind resulting from delays or errors in data transmitted or

received using the Sierra Wireless modem, or for failure of the

Sierra Wireless modem to transmit or receive such data.

If you have purchased this product under a United States

Government contract, it shall be subject to restrictions as set

forth in subparagraph (c) 1)(ii) of Defense Federal Acquisitions

Regulations (DFARs) Section 252.227-7013 for Department of

Defense contracts, and as set forth in Federal Acquisitions

Regulations (FARs) Section 52.227-19 for civilian agency

contracts or any successor regulations. If further government

regulations apply, it is your responsibility to ensure

compliance with such regulations.

Safety and Hazards Do not operate the Sierra Wireless modem in areas where

blasting is in progress, where explosive atmospheres may be

present, near medical equipment, near life support equipment,

or any equipment which may be susceptible to 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

operating, the Sierra Wireless modem can transmit signals that

could interfere with various onboard systems.

Note: Some airlines may permit the use of cellular phones while the

aircraft is on the ground and the door is open. Sierra Wreless

modems may be used at this time.

The driver or operator of any vehicle should not operate a

computer or any other device connected to the Sierra Wireless

modem while in control of a vehicle. Doing so will detract

MP 555 GPS Vehicle Installation Guide

from the driver or operator's control and operation of that

vehicle. In some states and provinces, operating such commu-

nications devices while in control of a vehicle is an offence.

Limitation of The information in this manual is subject to change without

notice and does not represent a commitment on the part of

Liability

Sierra Wireless, Inc. SIERRA WIRELESS, INC. AND ITS

AFFILIATES SPECIFICALLY DISCLAIM LIABILITY FOR

ANY AND ALL DIRECT, INDIRECT, SPECIAL, GENERAL,

INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR

EXEMPLARY DAMAGES INCLUDING, BUT NOT LIMITED

TO, LOSS OF PROFITS OR REVENUE OR ANTICIPATED

PROFITS OR REVENUE ARISING OUT OF THE USE OR

INABILITY TO USE ANY SIERRA WIRELESS, INC.

PRODUCT, EVEN IF SIERRA WIRELESS, INC. AND/OR ITS

AFFILIATES HAS BEEN ADVISED OF THE POSSIBILITY OF

SUCH DAMAGES OR THEY ARE FORESEEABLE OR FOR

CLAIMS BY ANY THIRD PARTY.

Notwithstanding the foregoing, in no event shall Sierra

Wireless, Inc. and/or its affiliates aggregate liability arising

under or in connection with the Sierra Wireless, Inc. 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, Inc. product.

Patents Portions of this product are covered by some or all of the

following US patents:

5,515,013 5,617,106 5,629,960 5,682,602 5,748,449

5,845,216 5,847,553 5,878,234 5,890,057 5,929,815

6,169,884 6,191,741 6,199,168 6,327,154 6,339,405

6,359,591 6,400,336 6,643,501 6,516,204 6,561,851

6,653,979 6,697,030 6,712,627, 6.785,830 D367,062

D372,248 D372,701 D416,857 D442,170 D452,495

D452,496 D453,733 D459,303 D496,642 D496,655

and other patents pending.

Manufactured or sold by Sierra Wireless or its licensees under

one or more patents licensed from InterDigital Group.

Licensed by QUALCOMM Incorporated under one or more of

the following United States Patents and/or their counterparts

in other nations:

2130297 4

Preface

Rev 2.1 5

Contact

feedback to

www.sierrawireless.com

Jan.05

4,901,307 5,490,165 5,056,109 5,504,773

5,101,501 5,506,865 5,109,390 5,511,073

5,228,054 5,535,239 5,267,261 5,544,196

5,267,262 5,568,483 5,337,338 5,600,754

5,414,796 5,657,420 5,416,797 5,659,569

5,710,784 5,778,338

Trademarks “Heart of the Wireless Machine” is a registered trademarks of

Sierra Wireless, Inc.

Sierra Wireless, the Sierra Wireless logo, the red wave design,

and Watcher are trademarks of Sierra Wireless, Inc.

Windows

is a registered trademark of Microsoft Corporation.

CDMA2000

1X is a registered trademark of the Telecommu-

nications Industry Association (TIA-USA).

Other trademarks are the property of the respective owners.

Information

Your comments and suggestions on improving this documen-

tation are welcome and appreciated. Please e-mail your

[email protected]. Thank you.

Consult our website for up-to-date product descriptions,

documentation, application notes, firmware upgrades, trouble-

shooting tips, and press releases:

Sales Desk: Phone: 1-604-232-1488

Hours: 8:00am to 5:00pm Pacific Time

e-mail: [email protected]

Post: Sierra Wireless, Inc.

13811 Wireless Way,

Richmond, BC

Canada V6V 3A4

Fax: 1-604-231-1109

Web: www.sierrawireless.com

MP 555 GPS Vehicle Installation Guide

2130297 6

Rev 2.1 7

Supported Platforms

Selecting a Mounting Location

Mounting Procedure

Installing Antennas

Jan.05

Table of Contents

Introducing the MP 555 GPS modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Package Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Modem Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Installing the MP 555 GPS Modem in a Vehicle . . . . . . . . . . . . . . . . . . . . . . . .13

Installation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

GPS and I/O Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

The Modem Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Connector Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Indicator Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Required Equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Mounting the Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Grounding the Modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

CDMA RF Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

GPS Antennas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Antenna Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

MP 555 GPS Vehicle Installation Guide

The Power Connector

Power Harness Grounding

Making Proper Power Connections

Powering On the Modem

GPS Performance

2130297

Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Power connector (Molex) pinouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Ignition Sense On/Off Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Ignition sense options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Correct wire splicing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Using crimp terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Data Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Cable Connection to the Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Serial connector (DB9) pinouts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Connecting the serial or USB cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

I/O Port Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Panic button connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Analog sensor connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Completing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Indicator Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

RF and Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Weight and Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

I/O Port Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Industry Canada Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

FCC Approval (U.S.A.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Rev 2.1 Jan.05 9

•

1: Introducing the

MP 555 GPS modem

Package Contents

Warranty

The Sierra Wireless MP 555 GPS modem provides a wireless

network connection for portable computers installed in

vehicles. The modem has a rugged design that allows it to

withstand the vibration, shock, humidity, and extremes of

temperature experienced in the normal operation of police,

emergency, utility, and field service vehicles.

The network connection provided by the MP 555 GPS can be

used to access shared data, browse the Internet, and send and

receive e-mail and text messages. The modem also allows for

sensors, gauges, and alarms (such as panic buttons) to be

deployed in vehicles and remotely monitored from a central

location or dispatch. A built-in GPS module provides location

and heading data that can also be remotely monitored.

MP 555 GPS Vehicle Installation Guide

connection):

•

• Microsoft

® ®

•

2130297

System Requirements

Supported Platforms

Note: Do not connect the

MP 555 GPS to a USB port on a

PC before installing the software.

Software installation instructions

are provided in the Software

Installation, Conf guration, and

Integration Guide (document

number 2130346) on the instal-

lation CD.

The MP 555 GPS wireless modem connects to a personal

computer with either a serial cable or USB cable. Your

computer must therefore have either an available serial port or

USB port and an appropriate cable.

The Watcher software supports notebook computers with

these operating systems (using either a serial or USB PC

Windows 2000 Professional (with Service Pack 4 or later)

Windows XP Professional

These operating systems are also supported but require a serial

connection between the modem and PC:

Windows 98 SE

Windows NT 4.0 (with Service Pack 6a)

For detailed system requirements, see the MP 555 GPS Software

Installation, Configuration, and Integration Guide

Introducing the MP 555 GPS modem

Rev 2.1 11

•

them.

Documentation

The

•

off switch.

•

output) devices.

The

•

• /

•

Jan.05

Package Contents

Each MP 555 GPS box contains:

The MP 555 GPS modem

A mounting template

Mounting screws and washers

An installation and documentation CD

A power harness

If any of these materials are missing, please contact your

account manager at your reseller or at Sierra Wireless to obtain

The MP 555 GPS documentation consists of two guides and an

online help system.

MP 555 GPS Modem Vehicle Installation Guide (this

document) provides instructions on installing the hardware,

describing how to:

Mount the modem in a vehicle.

Connect to the vehicle’s battery.

Connect to the vehicle’s ignition switch or a separate on/

Ground the device.

Connect the radio and GPS antennas.

Connect a notebook computer, and other I/O (input/

MP 555 GPS Software Installation, Configuration, and

Integration Guide describes how to:

Install the software.

Configure the software to use a CDMA account.

Understand the LEDs on the modem and the indicators in

the Watcher software.

Set up the modem’s operating mode and configure the

feature that allows for CSD connections.

Configure the modem to report GPS and or I/O (input/

output) data (from sensors, gauges, or panic buttons).

Use the modem to connect to a VPN (Virtual Private

Network).

Collect and use GPS and I/O data from a fleet of vehicles in

which MP 555 GPS modems are installed.

MP 555 GPS Vehicle Installation Guide

The

and the

)

the

Modem Accessories

2130297

Software Installation, Configuration, and Integration Guide

Vehicle Installation Guide are provided as PDF (Portable

Document Format files on the installation CD.

Online help is provided with Watcher. The help describes all

the icons and indicators in Watcher, provides detailed instruc-

tions on using Watcher to make data connections, and explains

how to send and receive SMS messages. When using Watcher,

you can access help through the menu system or by pressing

<F1> key.

For information about accessories for the MP 555 GPS wireless

modem—including cables and antennas—contact your

account manager at your reseller or at Sierra Wireless.

Warranty

Sierra Wireless, Inc. warrants the MP 555 GPS modem against

all defects in materials and workmanship for a period of three

(3) years from the date of purchase.

The sole responsibility of Sierra Wireless, Inc. under this

warranty is limited to either repair or, at the option of Sierra

Wireless, Inc., replacement of the radio 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, misuse, or installation

of the MP 555 GPS modem.

This warranty does not apply if the serial number label has

been removed, or if the wireless modem has been subjected to

physical abuse, improper installation, or modification.

Rev 2.1 Jan.05 13

•

iri

Installation Overview

l i

1. )

2. ( )

2: Installing the MP 555 GPS

Modem in a Vehicle

Installation Overview

The Modem Housing

Required Equipment

Mounting the Modem

Grounding the Modem

Antennas

Power Wiring

Data Wiring

Completing the

Installation

Note: The MP 555 GPS is

designed for negative-ground

vehicles only. It will not function

in a positive-ground vehicle.

Figure 2-1: Basic diagram for the installation of the MP 555 GPS in a vehicle

equipped with a notebook PC and a combination antenna, using the car

battery for power and ignition-sense w ng for power on/off.

Note: All electrica nstallations

are potent ally dangerous, and

should be performed by

personnel with thorough training

in safe electrical w ring proce-

dures for vehicles.

The installation process for the MP 555 GPS 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. In all cases, however,

you must:

Mount the modem (“Mounting the Modem” on page 16

Mount the CDMA RF Radio Frequency antenna and

connect the antenna cable (“Antennas” on page 19)

Install the power harness (“Power Wiring” on page 20)

Install the serial or USB cable for the PC. (This should not

be connected to the PC until the software is installed. See

“Cable Connection to the Computer” on page 24)

MP 555 GPS Vehicle Installation Guide

GPS and I/O Options

The Modem Housing

2130297

The MP 555 GPS wireless modem provides support for GPS

(Global Positioning System) and for attaching input/output

devices.

GPS. If you plan to use the MP 555 GPS’s built-in GPS module,

you must connect a GPS antenna and an antenna cable, or use

a combination antenna that can connect to both the GPS and

CDMA RF connectors on the MP 555 GPS housing.

Other I O devices. Other devices, such as panic buttons,

sensors, or gauges may also be installed with the MP 555 GPS

and connected with an I/O cable to the I/O port. (See “I/O Port

Connections” on page 25.)

The MP 555 GPS has a rectangular metal housing:

Figure 2-2: Top view of the MP 555 GPS.

There is a connector panel on one end of the housing, an

indicator panel on the opposite end, a reset button on top, and

mounting holes along the bottom edges on either side.

As shown in the following photographs, the modem has seven

connectors on its connector panel, six of which are currently

supported. The indicator panel has four indicator LEDs.

Installing the MP 555 GPS Modem in a Vehicle

Rev 2.1 15

RS232 serial

USB

(Mol

CDMA

(femal

GPS

Transmit (Tx)

Receive (Rx)

Power

Jan.05

Connector Panel

The MP 555 GPS modem’s connector panel has these ports:

Figure 2-3: The connector panel of the MP 555 GPS modem.

Indicator Panel

The MP 555 GPS’s indicator panel includes four indicator

lights:

Figure 2-4: The indicator panel of the MP 555 GPS modem.

Reset Button

The reset button for the MP 555 GPS

is on the top of the housing. Hold it

down for at least 2 seconds with a

pen or screwdriver to perform a

hard reset of the modem, which

includes a self-test sequence.

Figure 2-5: The modem reset button.

(female DB9)

GPS antenna

(female SMA)

I/O connector

(female DB15)

Power harness

ex connector)

RF antenna

e TNC)

Ground screw

MP 555 GPS Vehicle Installation Guide

• A

i i

• A The antenna must

(

• A (

• A

•

• An ).

Mounting the Modem

•

2130297

Required Equipment

To install the MP 555 GPS, you require the modem, the

provided power harness (or existing MP200 Series power

harness) and mounting template, and the screws and washers

that come with the device. You also require:

USB or 9-pin serial cable This must be long enough to

run from the mounting location of the MP 555 GPS 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 male

connector at the PC end and a Type B male connector at

the modem end.

Note: If GPS is being imple-

mented, you requre e ther two

antennas or a combination

CDMA and GPS antenna.

CDMA IS-95 RF antenna and cable

have the appropriate regulatory approval, 50 ohm

impedance, and a male TNC connector. This may be a

hard-mount or magnetic-mount antenna—see “Antennas”

on page 19)

GPS antenna and cable optional)—This is necessary if

you plan to use the built-in GPS module. (See “Antennas”

on page 19.)

power supply. This is usually the vehicle’s battery.

Appropriate electrical grounding. If a ground wire is

necessary, use a 16-gauge wire and connect it to the

ground screw on the modem’s connector panel.

I/O cable (optional This is required if a panic button,

sensor, gauge, or other I/O device is being installed. (See

“I/O Port Connections” on page 25.)

Note: The MP 555 GPS modem,

your computer, and any other

devices should be powered off

while you are connecting cables.

The MP 555 GPS can be mounted in the trunk of the vehicle,

under the dashboard, or under a front or rear seat.

Selecting a Mounting Location

When selecting a mounting location, consider the following

factors:

The modem should not be exposed to weather and

environmental conditions beyond the ranges listed in the

technical specifications on page 29. Avoid excessive heat

from the engine compartment, heaters, or the exhaust

system, and extreme cold from direct contact with air

conditioners or other cooling systems. Never immerse the

modem in water or any other liquid.

Installing the MP 555 GPS Modem in a Vehicle

• If you are replacing an MP200 modem, the MP 555 GPS is

smaller, but can be mounted in the same location using

the existing mounting holes. The MP200 has six mounting

holes, and any four adjacent ones will line up with those

on the MP 555 GPS.

• Every device connected to the MP 555 GPS, as well as the

modem itself, should be grounded as appropriate for the

installation. (See “Grounding the Modem” on page 18 and

“Power Harness Grounding” on page 22.)

• Wiring and connections should be as simple as possible.

Cables for power, antennas, the computer, and any I/O

devices must be routed to their destinations without using

excess wiring.

• All connectors and the reset button should be easy to reach

and the indicator lights should be visible.

Mounting Procedure

To mount the MP 555 GPS:

1. Use the provided mounting template to mark the location

of the mounting holes.

2. Drill the required 5/32" pilot holes (unless you are reusing

holes from an MP200 modem mounting—see page 16).

3. Use the supplied mounting screws and washers to secure

the MP 555 GPS through the holes along the edge of the

case bottom.

Figure 2-6: The bottom of the MP 555 GPS housing. Arrows indicate the

mounting holes.

Rev 2.1 Jan.05 17

MP 555 GPS Vehicle Installation Guide

ide a

whil

not

)

l i

i lectrical

icles.

2130297

Grounding the Modem

Note: Failing to prov

dedicated ground for each

piece of electrical equipment

can damage the equipment.

It is standard practice in automotive installations to provide a

good quality ground for each piece of electrical equipment. In

most cases, the modem should be grounded by connecting the

black ground wire of the power harness either to the vehicle

chassis or to the negative terminal of the battery.

Note: If you are replacing an

MP200 modem, you can use the

MP200 power harness rather

than install ng the MP 555 GPS

power harness. The only

difference between the

harnesses is that the MP200

harness has a fused ground wire

e the MP 555 GPS harness

has an unfused ground wire.

If other devices connected to the modem (such as a notebook

computer) are not properly grounded, there is some risk that

the other device will ground itself through the cable

connecting it to the modem. This creates a hazardous situation

and could cause equipment damage. If you cannot properly

ground these devices, a potential solution is to install a fuse in

the ground return wire.

The power harness for the MP 555 GPS modem has 5 A fuses

on the red power wire and the white ignition sense wire, but

on the black ground return wire. (See “Power Wiring” on

page 20.)

Figure 2-7: The ground screw connector (bottom) on the connector panel.

To facilitate other ground schemes, a ground screw is

provided on the connector panel of the MP 555 GPS. Use of

this ground screw is not required as long as the power harness

is properly grounded. (Use a 16-gauge wire if you choose to

use the ground screw.

Note: All electrica nstallations are potentially dangerous, and should

be performed by personnel with thorough training n safe e

wiring procedures for veh

Ground screw

Installing the MP 555 GPS Modem in a Vehicle

Note: Tighten cables connected Antennas

to the MP 555 GPS by hand. Do

not use tools.

SMA

TNC

Figure 2-8: The MP 555 GPS’s SMA connector

for the GPS antenna, and the TNC connector

for the CDMA RF antenna.

The MP 555 GPS requires a CDMA

RF antenna to connect to the CDMA

wireless network. If the built-in GPS

module is used, it requires a

dedicated GPS antenna, or a combi-

nation antenna with cables for both

antenna connectors on the modem.

CDMA RF Antennas

The MP 555 GPS requires an approved CDMA RF (Radio

Frequency) antenna. The antenna must have 50 ohms

impedance and a cable with a male TNC connector, as well as

the following characteristics:

• The total maximum gain, including the cable loss, must

not exceed 5.2 dBi (if the antenna operates on the PCS

band) or 6 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 555 GPS

supports these RF bands:

· 1900 MHz (PCS)

· 800 MHz (Cellular)

A dual-band antenna that supports both frequencies can be

used. If your MP 555 GPS will only be connected to net-

works that use one of the bands, an appropriate single-

band antenna is sufficient. Contact your service provider

for information about radio bands used in your area.

For more information about antennas for your installation,

contact your account manager at your reseller or at Sierra

Wireless.

GPS Antennas

If you are installing a GPS antenna, it connects to the

MP 555 GPS modem using a male SMA connector. Contact

your account manager at your reseller or at Sierra Wireless for

more information about compatible GPS antennas.

Rev 2.1 Jan.05 19

MP 555 GPS Vehicle Installation Guide

antennas:

•

Installing Antennas

l i

l i lectrical

icles.

2130297

Antenna Locations

When selecting locations for the GSM CDMA RF and GPS

Refer to the documentation provided with each antenna to

determine whether it requires a ground plane.

Ensure that the CDMA RF antenna is mounted at least

20 cm (8 inches) from vehicle occupants and bystanders.

Ensure that all radio antennas (CDMA RF, GPS, CB radio,

car radio) are separated as much as possible from each

other. Antennas should never be mounted less than 30 cm

(1 foot) apart.

To install the CDMA RF and GPS antennas:

Mount each antenna according to the instructions

provided with it.

Thread the antenna cables through the car to reach the

modem. Secure the cables as necessary.

Connect the cables to the MP 555 GPS by attaching the

cable into the modem’s TNC (for the CDMA RF antenna)

or SMA connector (for the GPS antenna). Hand-tighten the

connectors; do not use tools.

Power Wiring

Note: To avoid RF nterference

problems and possible damage

to the MP 555 GPS, do not

power on the modem before

connecting the CDMA IS-95 RF

antenna.

In a typical installation, the MP 555 GPS is connected to the

vehicle’s battery with the supplied power harness (or if an

MP200 modem was previously installed, with the MP200

power harness). The MP 555 GPS supports a voltage range

between 9 VDC and 36 VDC, and is designed for both 12 VDC

and a 24 VDC vehicle electrical systems.

Note: All electrica nstallations are potentially dangerous, and should

be performed by personne with thorough training n safe e

wiring procedures for veh

The Power Connector

The power harness (Sierra Wireless part number 2000154)

connects to the MP 555 GPS with a Molex connector (part

number 39-01-2040 or 39-01-2045). The part number for the

pins is 39-00-0039.

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Sierra Wireless MP 555 Installation guide

Brand: Sierra Wireless

Model: MP 555

Category: Motor vehicle electronics

Type: Installation guide

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Sierra Wireless MP 555 Installation guide

Sierra Wireless MP 555 Installation guide

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