FCC ID: COO-ARTU
EXHIBrrc
MAGNASTAR
7.1.2.7.1 Handset Alerter and RJ-ll Gain Settings
The Handset Alerter gain setting sets the audio level for the handset ringer on C-2000 digital handsets. The handset speaker
provides the ringer output. The Handset Alerter gain can be adjusted between 0 to 31. The default value is 27. There is very
little discernible audio level difference between 27 and 31.
C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM
Gains
Select +
for more
-->
Handset 27
Alerter
(+) ->1
(-) ->7
RJ-l
More --->..
Go BAck >1
31
->3
->9
7.1.2.7.2 Auxiliary Call Alerter and Auxiliary Call Alerter Cadenee
Each active port can be configured to activate any combination of the ten output switches of the Call Almer Switch (CAS)
when the port is called. The CAS configuration is station dependent and must be programmed for each individual active port.
When an aux.iliary call aImer is selected from the maintenance screen, it will activate the associated output oftbe CAS. The
output will stay active until another screen is selected. The current aux.iliary call alerter output values will be highlighted on
the maintenance screen. Note that if CAS 0 is configured as a service availability indicator or if CAS 9 is configured as a call
in progress indicator, CAS 0 and CAS 9 (respectively) will not appear on either the Call Almer or Cadence menus shown in
this section.
Select the appropriate
number to change the gain
settings.
Select + to reach other
Handset Attribute screens
There are two different cadence patterns in which the CAS outputs can be configured. They are either one second "on"
followed by three seconds of "off' to simulate a ring, or continuous "on". Each of the ten individual outputs can be
configured for either one of the types of cadence. The cadence is a system function and need only be programmed from one
handset. The cadence handset maintenance screen will display the current setting values. A highlighted number corresponds
to a simulated ring with a one second "on" followed by a three second "off'. The output will activate when selected
(assuming the output is also selected in the auxiliary call alerter screen) and will stay active until another screen is selected.
Auxiliary
Call
Alerter(s)
>1 >2 >3
>4 >5 >6
>7 >8 >9
J~.~, >o"{i
Cadence >*
More --->+
Go Back >1
Select the appropriate
number(s) of the Auxiliary
Call Alerter required.
Press the number again to
deselect an output.
Press * to view the
Cadence screen. -->
Press + to reach other
handset attribute screens
Auxiliary-
Call
Alerter
Cadence
>1>2 >3
>4 >5 >6
>7 >8~9
>0
Go Back >1
Select the appropriate
number(s) to change the
Cadence of the CAS
output.
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MAGNASTAR
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.
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.
C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM
Press the appropriate number to change
the Speaker Gain as required.
Press + to reach other
handset attribute screens
Press the appropriate number to increase or
decrease the values of the LED Blink Rates.
Press + to proceed to the next Handset
Attribute screen.
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MAGNASTAR
7.1.2.7.5 Sidetone Gains
Audio that is fed from the microphone to the earpiece speaker is called sidetooe. The value of the sidetone audio can be
adjusted. The default value for voice sidetone is 13 and DTMF is 70. Values higher than these are not recommended. They
may be found to be too loud and uncomfortable for the user.
C-2000 DIGITAL AIRBORNE TELEPHONE SYSTEM
Press the appropriate number to increase or
decrease the voice or DTMP sidetone audio level
The DTMF sidetone adjustment screen will not appear
unless a MMTI is not connected to the ARTU.
Press + to proceed to the next Handset
Attribute screen.
7.1.1.7.6 Autodial DTMF Mo8itor
The autodial DTMF Monitor values are used for auto detection of DTMF tones on the handset RJ-II interface. The default
values are 3 for scale and 80 for sense. These values should not be changed
The Autodial DTMF Monitor screen will not appear
unless a MMTI is connected to the ARTU.
Press + to proceed to the next Handset Attribute
screen.
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