Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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3.4.5 Digital – ARIN C 429 Dual IOC Buses (Cat. 2. ID 255)
Air Data Type 255 (IOC bus or equivalent) is a dual, high speed, digital ARINC 429 signal having the air data
labels 203, 204, 206, 210, 212, and 213. ID 255 may only be used in conjunction with other IOC bus selections
for categories 6, 8, 9, 10, 11 and 12.
37
36
A
B
J2 IOC Buses
IOC Bus 1
EGPWS MK VI / MK VIII
A
B
ARINC 429
High Speed
41
40
A
B
IOC Bus 2
A
B
ARINC 429
High Speed
ARINC429-IOC.vsd
Cat 2 IOC Bus 1 IOC Bus 2
Vendor Model ID A B A B
BD-100
CJ-1/CJ-2
255
255
A4P1-1
P1-1
A4P1-2
P1-2
A4P101-1
P101-1
A4P101-2
P101-2
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.
3.4.6 Instructions
Using Appendix E Tables 5.2, 5.3.2 and 5.3.2-x as described above, select the Air Data Type that
matches the aircraft air data configuration, feature preferences and version (part number) being
installed.
Record the ID number for the Air Data Type from Appendix E Table 5.3.2 under the Ident No.
heading for Step (Category) 2 in Appendix E Table 5.2.
Using the Air Data Type number from Appendix E Table 5.3.2 as “x”, go the Air Data Input Select
x Table.
The electrical interfaces (pin-outs) for the Air Data Input Select are shown in Appendix E Table
5.3.2-x and are used to generate the installation wiring diagrams.