Honeywell MK VI - Manual (Page 172)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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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 selectable levels excluding the Mode 6 Audio Reduction function
Pin Assignment (Signal Mnemonic):
Signal (+)
Return (-) J1-70
J1-71 (AUD_HL_H)
(AUD_HL_L)
4.2.12.2 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 selectable levels excluding the Mode 6 Audio Reduction function
Pin Assignment (Signal Mnemonic):
Signal (+)
Return (-) J1-75
J1-74 (AUD_LL_H)
(AUD_LL_L)
4.2.13 ARINC Digital Serial Output Buses
4.2.13.1 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)
4.2.13.2 ARINC 453 Output Bus
Quantity 2
Format 1600 bit Manchester BI-phase per ARINC 708A
Data Rate 1 Mb per second
Word/Frame Structure Refer to Section 7.2
Data definition Refer to Section 7.2
Pin Assignment (Signal Mnemonic):
Bus #1 (A leg)
Bus #1 (B leg)
Bus #2 (A leg)
Bus #2 (B leg)
J1-58
J1-59
J1-56
J1-57
(KCPB_1A)
(KCPB_1B)
(KCPB_2A)
(KCPB_2B)
4.3 Front Panel Test Interface
The MK VI and MK VIII EGPWS provide a 15 pin (double density, D-Sub) test connector on the front panel, which
provides interfaces for various test and maintenance functions. This connector provides the following interfaces.