Honeywell International Inc. KSN770 사용자 설명서
Draft
Page 3-109
6 Dec 2012
34-70-06
SYSTEM INSTALLATION MANUAL
066-01204 / 066-01213
© Honeywell International Inc. Do not copy without express permission of Honeywell.
3.15 Audio Interface
3.15.1 Applicable Part Numbers
All part numbers and software revisions perform all audio interface functions.
3.15.2 Function
The KSN 7xx provides audio information to the pilot for the alert audio.
3.15.3 Requirements and Limitations
The audio interface provides audio alerts based on EGPWS and internal SBAS terrain generated
warnings.
warnings.
3.15.4 Electrical Characteristics
J4-16
AUDIO ALERT OUT HI
J4-35
AUDIO ALERT OUT LO
This is an analog output from the KSN 7xx with the following characteristics:
3.15.5 Interconnect Diagram
Refer to Figure 3-26 for the audio interface 1 interconnect diagram.
Refer to Figure 3-27 for the audio interface 2 interconnect diagram.
Impedance:
500
50 ohms
Output Power:
10 mW RMS into 500 ohms
at 1 kHz
Frequency Response:
Less than 3 dB variation from 350 Hz to 2.5 kHz by 20 dB relative to a
1 kHz tone. Frequencies below 200 Hz and above 10 kHz are
attenuated.
1 kHz tone. Frequencies below 200 Hz and above 10 kHz are
attenuated.
Distortion:
Less than 10% at rated audio and less than 3% at 10% of rated audio
from 300 Hz to 2.5 kHz.
from 300 Hz to 2.5 kHz.
Noise Level:
Minimum of at least 50 dB below rated output.
Protection:
Electrically isolated by an audio transformer.
Draft as of 10/15/2012