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MK XXII EGPWS Installation Manual
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-225 REV: C
SHEET
177
•
If a ‘soft’ Glideslope alert is being issued (given 6 dB below nominal alert volume level).
•
If a Self Test is in progress, alerts are given 6 dB below nominal alert volume level.
•
Selection of Mode 6 Low Volume Discrete (lowers callout volume by 6 dB - See Section 5.3.13).
E 4.2.16.1 HIGH LEVEL (SPEAKER) AUDIO OUTPUT
The 8-ohm output is capable of driving a speaker directly but can also be used to drive other devices with equal or higher
impedance.
Quantity 1
Maximum Power Output 4 Watts Nominal
Nominal Output Impedance
8
Ω
Load Impedance
8
Ω
or greater
Number of Available Power Output Levels 5
1
Pin Assignment (Signal Mnemonic):
Signal (+)
Return (-)
J1-70
J1-71
(AUD_HL_H)
(AUD_HL_L)
E 4.2.16.2 LOW LEVEL (INTERPHONE) AUDIO OUTPUT
The 600-ohm output is capable of driving one 600-ohm load at the specified level (or at a reduced level). This output is
primarily designed for headphones and interphone systems.
Quantity 1
Nominal Output Impedance
600
Ω±
10%
Maximum Single Channel Power Output 100 mW Nominal ()
Available Power Output Levels 5
1
Pin Assignment (Signal Mnemonic):
Signal (+)
Return (-)
J1-75
J1-74
(AUD_LL_H)
(AUD_LL_L)
E 4.2.17 ARINC DIGITAL SERIAL OUTPUT BUSSES
E 4.2.17.1 ARINC 429 OUTPUT BUS
The ARINC 429 output buses are defined in the terrain display select Section 5.3.6.3, output 429 bus group.
Quantity 2
Format DITS, ARINC 429
Low Speed Data Rate 12.0 KBPS to 14.5 KBPS
High Speed Data Rate
100 KBPS ± 1%
Direction of Information Flow Type ‘A’ broadcast for ARINC 429
Word/Frame Structure Type ‘B’ 32 bit words consisting of 8 bits label and 24
bits data/status
Data definition Refer to Section 7
Pin Assignment (Signal Mnemonic):
Bus #1 (A leg)
Bus #1 (B leg)
Bus #2 (A leg)
Bus #2 (B leg)
J2-43
J2-42
J2-26
J2-9
(429TX_1A)
(429TX_1B)
(429TX_2A)
(429TX_2B)
2
2
Five Selectable levels excluding the Mode 6 Audio Reduction function.