Altair Glide Computer and Navigation System Owner's Manual download pdf (Page 16)

2 SYSTEM FUNCTIONS

• Device A Device Vega

• Device A Port COM1

• Device A Speed 38400

• Device B Device Generic

• Device B Port COM1

• Device B Speed 38400

2.5 Logger and GPS module

XCSoar has a non-IGC-approved software ﬂight recorder which can be used on Altair Standard.

This is referred to as the ‘software logger’. Altair Pro has a fully IGC approved ﬂight recorder unit,

referred to here as the ‘hardware logger’.

The ﬂight recorders can be conﬁgured through the XCSoar recorder setup dialog:

CONFIG . Setup Logger

Declarations are made through XCSoar’s task editor dialog. If a USB memory stick is inserted in

the USB host slot, the logger ﬁles can then be transferred to the USB memory stick.

Communication between XCSoar and Altair’s hardware logger and GPS source requires the de-

vices A or B to be set to the following settings:

• Port COM3

• Baud rate 57600

• Device Altair RU

2.6 Auxiliary device integration

A secondary communications port allows Altair to be connected to a communications device with

an RS232 serial interface. Typical applications include:

• Backup GPS module

• Secondary Altair device (double seater installation)

2.7 Battery and power management

The software and data ﬁles used by Altair reside in nonvolatile memory and so do not rely on battery

backup. The purpose of the backup battery is to provide for emergency power if the aircraft’s main

battery supply is depleted.

This battery is charged automatically when an external power supply is available and the device

is switched on. As a result, it causes an additional drain on the aircraft’s main batteries while

charging. Ensure that Altair is switched off after ﬂight when the main batteries are switched off, so

the backup battery does not get depleted when Altair is not in use.

The backup battery can also be used to provide power to Vega and a FLARM unit (if it is connected

to Vega); in this setting it can power all these devices for up to one hour.

When Altair switches to using the backup battery, it emits three beeps and the LED ﬂashes brieﬂy

once per second. When external power is restored, Altair beeps once and the LED switches off.

9 Altair Owner’s Manual • ALTAIR-EN

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Altair Glide Computer and Navigation System Owner's Manual Page 16