ACR Electronics Satellite2 406 Manuale di supporto al prodotto - Pagina 11

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1. Battery Replacement

4.6.3

Category 1 Self Test Plug

Forget the hassle of removing the beacon from your Cat. 1 bracket for self testing.

Now simply remove the New Self Test Plug (See figure 8) on the front cover and have instant access to

perform your self tests. Be sure to reattach the plug to protect the beacon from the elements.

4.7

External GPS Interface (P/N 2776 & 2777 only)

Connecting the RapidFix ™ 406 to a GPS via the Optical Interface (IR Transmitter)

4.7.1

Your RapidFix ™ 406 comes with a GPS Optical Interface (transmitter plug with lead wires) and a keyed

GPS bezel. The transmitter plug attaches to your RapidFix ™ 406, via the keyed bezel. The GPS Optical

Interface lead wires attach to your GPS via the NMEA 0183 connector from your GPS receiver. The black

lead wire with white stripes should be connected to the positive transmitter pin. The black wire should be

connected to the negative pin.

NOTE: The baud rate output for your GPS receiver NMEA 0183 should be 4800 bps. If you are not sure if

your receiver is NMEA 0183 compliant please check the interface settings listed in your GPS manual. To

optimize your GPS Interface feature be sure that your GPS receiver is equipped with the following:

•

NMEA 0183 Version 1.5 or higher

•

GPGGA sentence is enabled

4.7.2

Using the GPS Interface

Once a compatible, operating GPS receiver is connected to the RapidFix ™ 406, the beacon will store data

for incorporation into the emergency message, which is transmitted to the satellite. This can provide more

accurate positioning data to the Search and Rescue Authority and may lead to faster rescue. Since the last

valid GPS position data is always kept in the memory of the RapidFix ™ 406, the user should take care to

make sure that the GPS position data stored is accurate. This can be accomplished by two methods: first,

by always leaving a properly functioning GPS connected to the RapidFix ™ 406 before activation. Second,

by connecting a properly functioning GPS with a valid position fix and allowing sufficient time to acquire

valid GPS position data. This will take a nominal 20 minutes if old GPS position data is stored in the

RapidFix ™ 406's memory. If there is no old GPS position data present, the beacon will acquire current

data within a minute of being connected to a GPS with a valid position fix. You can force the RapidFix ™

406 to update its position at any time by initiating the Self-Test, see 4.7.3 and 4.7.4. If valid GPS position

data is not available, it is preferable to reset the RapidFix ™ 406 with the beacon's default message (See

Section 3.7.5).

4.7.3

Testing the GPS Interface

Connect the Optical Interface Plug to the RapidFix ™ 406 bezel and allow sufficient time for the GPS

receiver to acquire valid GPS position data (usually less than 1 minute; but it can take up to 30 minutes).

Lift the thumb switch to the vertical (Self-Test) position and release. Your RapidFix ™ 406 will confirm that it

has acquired valid GPS data by emitting a beep along with a flash of the red and green LED's. This will

occur approximately 2.5 seconds after the Self-Test.

Figure 8

Y1-03-0148 Rev. F