Honeywell MK VI - Manual (Page 66)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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3.5.6 Dual ARINC 429 BUS (Cat. 3 ID 253 & 255)
NOTE: If GPS #2 is not installed in the aircraft, then use ID 4 or GPS bus #1 must be connected in parallel to
both EGPWS GPS input ports.
NOTE: Non-IOC aircraft can use ID 253 or 255 to activate dual GPS inputs for redundancy and improved
system availability, but the interface must have dual High Speed 743A GPS, and this cannot be used if
using Category 10 ID 5 or Category 11 ID 2.
25
8
A
B
J2 ARINC 429 GPS
ARINC 429 Bus 1
Lo
EGPWS MK VI / MK VIII
A
B
ARINC 429
GPS Bus
23
6
A
B
A
B
ARINC 429
GPS Bus
Hi
ARINC 429 Bus 2
Lo
Hi
ARINC429-DualGPS.vsd
Cat 3 429 GPS Alt ARINC Bus 1 Bus 2
Aircraft Model ID Speed Ref. 743/743A A B A B
253 1
BD 100 255 High MSL 743A
A25BP1-6A A25BP1-6B A24BP1-6A A24BP1-6B
CJ1/CJ2 255 High MSL 743A
TBD TBD TBD TBD
NOTE: The connector pin numbers given in the Table above are to the best knowledge of Honeywell EGPWS engineering. Please
contact the manufacturer’s customer service to confirm your installation.
1 ID 253 is a optional configuration for compatibility with IOC that are missing North-South, East-West Velocities labels.
3.5.7 Instruction s
Using Appendix E Tables 5.2, 5.3.3 and 5.3.3-x as described above, select the Position Input
Type that matches the aircraft Position Input configuration, feature preferences and version (part
number) being installed.
Record the ID number for the Position Input Type from Appendix E Table 5.3.3 under the Ident
No. heading for Step (Category) 3 in Appendix E Table 5.2.
Using the Position Input Type number from Appendix E Table 5.3.3 as “x”, go the Position Input
Select x Table.
The electrical interfaces (pin-outs) for the Position Input Select are shown in Appendix E Table
5.3.3-x and are used to generate the installation wiring diagrams.