Simrad MX525A Manual de usuario

www.simrad-yachting.com A brand by Navico - Leader in Marine Electronics

Manual

Simrad MX525A

DGPS Receiver

English

Manual

Simrad MX525A

DGPS Receiver

English

To the best of our knowledge, the content in this

publication was correct at the time of printing.

As we are continuously improving our products we

retain the right to make changes to the product and

the documentation at any time. Updated manuals are

available from our website www.simrad-yachting.com,

and are free to download.

Document no: 727007

Revision: A

Date: March 2008

The original language for this document is English. In the

event of any discrepancy between translated versions

and the English version of this document, the English

document will be the official version.

2 | Simrad MX525A

IMPORTANT NOTICE!

THE MX525A DGPS RECEIVER IS AN AID TO

NAVIGATION ONLY. Under no circumstances should

it be used in lieu of authorized government charts.

Its accuracy can be affected by many factors such

as equipment defects, environmental conditions, or

improper operation. The user is responsible for safe

navigation of the vessel. This includes consulting

authorized government charts and exercising common

prudence and navigational judgement at all times.

How to contact us?

Contact your local Simrad dealer for:

Installation, Service, & Technical Support•

Sales of Accessories•

Hardware and Software Upgrades•

Unlike many other consumer electronics industries which

only sell consumer electronic devices, your marine dealer

is often your best advisor for installation and service of

your new GPS receiver. Simrad strongly encourages you

to utilize the knowledge and experience of your sales and

service dealer.

Should you need to contact us directly for new sales,

upgrades, repair service, or technical support, we can be

reached at the following:

International:

MX Marine (USA)

A Division of NAVICO, Inc.

23868 Hawthorne Blvd., Suite 201

Torrance, California 90505

USA

+1 310 791 8213 (Telephone)

+1 310 791 6108 (Fax)

www.mx-marine.com

In Europe:

Navico UK Ltd

Premier Way, Abbey Park

Romsey, Hampshire

SO51 9DH

United Kingdom

+44 (0)1794 510010 (Telephone)

+44 (0)1794 510006 (Fax)

www.navico.com

Simrad MX525A | 3

Contents

1 General ....................................................... 5

Supplied Equipment ......................................6

2 Operation ................................................... 7

General .......................................................7

Satellite Bases Augmentation System (SBAS) ...7

Receiver Autonomous Integrity Monitoring

(RAIM) ........................................................8

3 Installation................................................. 9

MX525A Mounting .........................................9

MX525A Connectors ......................................9

MGL-4 Antenna Mounting Guidelines.............. 11

Antenna Mounting ....................................... 12

Bracket Mount .................................... 12

Antenna Cable Selection .............................. 13

Power Requirement ..................................... 13

Power/Data Cable Assembly ......................... 14

MX525A Connector Conguration .................. 15

Data Interface to MX420/2 or MK12 CDU........ 16

Data Interface to MX420/8 or MX420/AIS CDU 17

Data Interface to MX5xx CDU ....................... 18

Data Interface to PC or other navigation systems

MX525A Programming Cable......................... 20

4 Specications ........................................... 21

GPS Receiver ..................................... 21

4 | Simrad MX525A

Blank page

General | 5

1 General

This manual describes the operation and installation of

the MX525A DGPS sensor (with the MGL-4 antenna) and

older version MX525 black box DGPS sensor (with the

MGL-3 antenna). Their wiring hook-up is identical and

the antennas are interchangeable.

The MX525A is a blackbox GPS and Differential Beacon

receiver combination. It has a 10-pin connector for power

and data connection and a TNC connector to connect to

an active GPS and Beacon combo antenna.

When connected to an MX-CDU (MX420 or MX5xx), the

MX525A can be controlled to function in several modes,

namely;

GPS only•

DGPS mode in Auto/Database search or Manual•

WAAS (Wide Area Augmentation System-US system)•

EGNOS (European Geostationary Overlay System)•

RAIM (Receiver Autonomous Integrity Monitoring)•

This sensor was designed to use as:

Source of DGPS positioning for any MX CDU model•

Retrofit for IMO compliant GPS and AIS installation•

D/GPS positioning for ECDIS and other charting•

software

The MX525A can achieve better than 2-meter accuracy

in areas with good beacon differential coverage and

autonomous GPS accuracy better than 5 meters. The

built-in beacon receiver can be operated to do auto-

global search, database search or manual mode when

connected to the MX CDU.

Before installing the MX525A, please read this manual

carefully to ensure proper installation and operation of the

unit.

6 | General

Supplied Equipment

The following items are supplied with the MX525A DGPS

Sensor Kit (p/n 9525 200 81000):

Description Part Number

MX525A DGPS Sensor 9525 200 81010

with mounting kit

MGL-4 Combo Antenna 721757

Power/Data Cable assembly, 3 m. 3508 102 70150

Installation Manual 727007

The antenna coax cable for the MGL-4 antenna is not

included in the kit and must be ordered separately.

Several cable lengths are available in stock, please refer

to the antenna cable selection section on Page 8 for more

details.

MX525A DGPS Sensor Kit

MGL-4 Combo

Antenna

MX525A Black Box

Sensor

Installation Manual

3-meter Power/Data Cable

Manual

MX525A

DGPS Receiver

www.simrad-yachting.c om A brand by Navico - Leader i n Marine Electroni cs

Operation | 7

2 Operation

General

The MX525A sensor is an integrated GPS and beacon

receiver unit that is fully automatic and requires

minimal user intervention. It will automatically search

for available satellites as soon as power is applied. The

internal 2-channel beacon receiver continuously monitors

all beacon signals available in a particular location. The

first channel tracks the primary station while the second

channel searches for other nearby beacons. Should

it find a closer station it will automatically switch the

primary channel to the new station. The combined

performance of the high-precision 12-channel GPS and

2-channel beacon receiver provides a more accurate

position fix, usually within 2 meter or less.

When controlled by an MX CDU, the operator can disable

the auto mode and manually select the beacon frequency

desired.

The MX525A works with an MGL-4 (or -3) antenna (a

combined GPS/H-Field Beacon antenna) for better on-

board electrical noise immunity.

Satellite Bases Augmentation System

(SBAS)

In areas where land-based beacon stations are not

available, the MX525A can be controlled (using the MX

CDU) to track the Satellite Based Augmentation Systems

(SBAS) like the WASS (US), EGNOS (European), MSAS

(Japan) and GAGAN (India) satellites . These satellites

transmit DGPS correction data (just like the Coast Guard

stations) using the GPS frequency. Refer to the MX CDU

Operator Manual for more details. Turning this feature

ON in the MX CDU will initiate the MX525A to track any

SBAS satellites that are in view. Please be aware that

the SBAS system is not an IMO approved differential

correction system.

8 | Operation

Receiver Autonomous Integrity

Monitoring (RAIM)

RAIM is a special software algorithm in the MX525A

program which provides another layer of safety because

it gives the operator an alarm indication if the GPS

system accuracy exceeds a predefined tolerance. This

feature requires at least five or more GPS satellites to

operate properly. If the position solution falls outside this

tolerance (usually 100 meter) a “RAIM Unsafe” alarm

will be activated in the MX420 CDU. This means that the

accuracy of the position can not be guaranteed at that

point in time. The operator is advised to use the GPS

for navigation with caution until the RAIM indicator goes

back to safe mode (R+).

The RAIM availability is dependent on the number of

usable satellites in view. Planned outage of satellites

due to maintenance or when certain satellites reach their

age of maturity may cause any of the GPS satellites to

become unusable. If less than 5 satellites are available

a “RAIM Caution” (R?) icon will be displayed. If the

GPS system error exceeds 100 meters “RAIM Unsafe”

(R-) icon will be displayed. The operator should take

cautionary measures during this mode.

Installation | 9

3 Installation

MX525A Mounting

The MX525A console is not weather-resistant and must

be located inside the equipment room or pilot house

where it is dry and protected from the elements. Provide

ample clearance around it for good air circulation. Use

the supplied mounting bracket kit to mount it on a

vertical wall.

Locate the MX525A within 3 meters from the MX CDU

junction box. Should there be a need to install the

MX525A much farther away from the MX420 CDU, a

longer cable assembly can be specially ordered from

Simrad.

The MGL-4 antenna is a weather resistant unit and should

be mounted in the open location as shown in the antenna

location diagram.

Below is a list of power-data cable options available from

Simrad:

Part Number Description

3508 102 70150 3 meter cable

3508 102 70170 20 meter cable

3508 102 70180 40 meter cable

Special order only 80 meter cable

MX525A Connectors

Two connectors are located at the back of the unit,

namely:

Power-Data connector (10-pin male)•

RF (TNC female)•

The 10-pin connector provides the means to connect

to external power and the data interface. Please refer

to the chart below for the pin-outs and wiring color

code. The chart also compares the signal interface of

the MX525A DGPS sensor against the MX421B-10 smart

DGPS antenna. Please note the connection similarities

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