Honeywell

MK XXII EGPWS Installation Manual

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

 

Load Impedance

8or greater

 

Number of Available Power Output Levels

5 1

 

Pin Assignment (Signal Mnemonic):

 

 

Signal (+)

J1-70

(AUD_HL_H)

Return (-)

J1-71

(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

600Ω ±10%

 

Maximum Single Channel Power Output

100 mW Nominal ()

 

Available Power Output Levels

5 1

 

Pin Assignment (Signal Mnemonic):

 

 

Signal (+)

J1-75

(AUD_LL_H)

Return (-)

J1-74

(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)

J2-43

(429TX_1A)

Bus #1 (B leg)

J2-42

(429TX_1B)

Bus #2 (A leg)

J2-26

(429TX_2A)

Bus #2 (B leg)

J2-9

(429TX_2B)

 

 

2

2Five Selectable levels excluding the Mode 6 Audio Reduction function.

CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-225

REV: C SHEET 177

Page 177
Image 177
Honeywell MKXXII High Level Speaker Audio Output, LOW Level Interphone Audio Output, Arinc Digital Serial Output Busses