Copper Overbraid Installation; Ifd5Xx Connectors; Byteflight Digital Data Bus Consideration - Dual Ifd Installations; Databus Wiring - Replacement Installations - Avidyne IFD540 Installation Manual

The Approved Model List for the STC will indicate if an aircraft is required to install wire
harness overbraid on the IFD5XX wiring. Note: Overbraid is not required on VFR only
installations as defined in Section 2.4.1.

4.5.3 Copper Overbraid Installation

The copper overbraid must be a minimum 90% optical coverage per ASTM-B-33. The
overbraid must be grounded at both ends. If the aircraft wiring passes through wire
disconnects or bulkheads, the overbraid should be continued on each segment.
The wire harness overbraid should also be installed per FAA AC 43.13-1B Chapter 11-189.

4.6 IFD5XX Connectors

The following special tools may be needed during installation of the IFD5XX:
IFD5XX Connector
Connector Part number
Number
P1001 M24308/4- 268( )
P1002 M24308/2-3( )
P1006 M24308/4- 266( )
P1050 M24308/4- 268( )
Ground Block 583861-7
(TE
Connectivity)
4.7 Byteflight Digital Data Bus Consideration – Dual IFD Installations
Dual IFD installations use a Byteflight digital Databus protocol when connected via RS-232
Channel 3 and configured for CrossSync. The following must be considered for replacement
and new installations.

4.7.1 Databus Wiring - Replacement Installations

For installations that are replacing two previously connected GNS4xx/5xx systems, the
Byteflight digital Databus is capable of using the pre-existing wiring between the two pre-
existing trays with no additional wiring or modifications required. All bus termination is
built into the IFD units. However, the existing wire length on the CrossSync connection must
not exceed 8 feet in length on IFD5XX RS-232 Channel 3 on P1001. Installations with longer
installation lengths between IFD5XX units must use Byteflight cable. The ByteFlight wire is
available from Avidyne, reference Table 15.
600-00299-000
Contact Part Crimp
Numbers Tool
M39029/58-360 M22520/02-
01
(ORG/BLU/BLK)
M39029/63-368 M22520/02-
(ORG/BLU/GRY) 01
M39029/58-360 M22520/02-
01
(ORG/BLU/BLK)
M39029/58-360 M22520/02-
01
(ORG/BLU/BLK)
5-583853-4 91535-1
(TE Connectivity) (TE
Connectivity
)
Table 21: D-Sub Connector Tools
Page 46 of 198
IFD5XX Installation Manual
Die/ Extraction
Positioner Tool
M22520/2-09 M81969-1-04
M22520/2-08 M81969/1-02
M22520/2-09 M81969-1-04
M22520/2-09 M81969-1-04
91073-1
(TE
Connectivity
)
Insertion
Tool
M81969/1-04
M81969/1-02
M81969/1-04
M81969/1-04
Revision: 02