Installation Manual Part 5

FCC 10: CDG-ARTU
MAGNASTAR
EXHIBrrc
C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM
7.1.2.7.3 Speaker Gain:
The alJdjo level of the earpiece on a digital handset can be changed with the speaker gains screen. The range of val~ for the
coarse speaker gain is from 0 to 31. Values greater than 24 may cause the receive audio quality to degrade and become
distorted. For this reason values above 24 are not recommended. Values in the range of 19 to 24 are normal for most
aircraft. The speaker gain can temporarily be adjusted using the volume control on the handset. However, to make
pennanent changes, this screen must be ~ The fine speaker gain resolution is small enough that it usua.lly is not
discernible and therefore it is suggested that this value not be changed. The default value for Coarse Speaker Gains is 24 and
0 for Fine Speaker Gain.
Press the appropriate number to change
the Speaker Gain as required.
Press + to reach other
handset attribute screens
7.1.2.7.4 LED BUnk Rates
A digital handset incorporates an LED which can be used to visually indicate an incoming call. It is possible to enable the
LED to sjgnal in conjunction with the handset ringer. The LED displays two different blinkjng patterns to discern between
an inplane call and an uplink call. The rate at which these patterns blink can be varied. To enable the LED to blink for an
inplane call a minimum value of 5 must be entered. A value of 5 also represents the maximum blink rate for this sjgnal.
Values greater than 5 will result in a slower blinking rate for the inplane call signaling. Values of 4 or less will disable the
inplane call LED signaling. To enable the LED to blink for an uplink call a minimum value of 5 must be entered. A value of
5 also represents the maximum blink rate for this sjgnal. Values greater than 5 will result in a slower blinkjng rate for the
uplink call indicator. Values of 4 or less will disable the uplink call LED indicator.
Press the appropriate number to increase or
decrease the values of the LED Blink Rates.
Press + to proceed to the next Handset
Attribute screen.
RevS
7-20