B
3.0.5 Interface Subsection Description
The harness techniques for shielding and shield termination described in this
manual are identical to those specified for the test harness used during HIRF and
Lightning testing. Adherence to the information in this manual is essential in
establishing an installation environment equivalent to the test environment used
during HIRF and Lightning testing.
Should grounding the shields, as shown in the interconnect diagrams, cause
unacceptable interference due to noise sources on the aircraft, double shielded
wire may be substituted for single shielded wire shown in this manual. The outer
shield must be grounded at both ends to comply with HIRF and Lightning require-
ments. The inner shield may then be grounded at a single end to protect against
the aircraft noise source. Normally the inner shield is grounded at the source end
of the signal carried by the wire. Planning to install double shielded wire for low
level signals known to have a history of interference may be easier than later add-
ing the double shielded wire into the aircraft harness.
Rev 3, August/2002
10609I03.CDL
KMH 880/KTA 870
Page 3-2