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Re fer to fig ures 3-2 & 3-3
Be fore in stall ing the tray, be sure the
mount ing lo ca tion meets the re quire -
ments es tablished in ELT Mount ing
Lo ca tions.
NOTE: Al though the Top Cover also
has 4 holes, do not use for mount ing
the ELT.
Mark the 4 holes needed for the tray
us ing the tray as a guide. Be sure
the ar row, on the tray, aligns within
10 de grees of the lon gitudinal axis of
the air craft (and in di rection of flight).
ARTEX AIRCRAFT SUPPLIES DOCUMENT #570-5060
03/22/04 PAGE 3-11
(2.5 mm)
(43.2 mm)
(36.8 mm)
(27.0 mm)
(7.6 mm)
(5.1 mm)
(35.6 mm)
(7.6 mm)
(25.4 mm)
(30.5 mm)
(26.4 mm)
(33.0 mm)
(12.7 mm)
FIG URE 3-8 RE MOTE SWITCH OUT LINE DI MEN SIONS
Also make sure there is suf fi cient
room in front of the tray to eas ily re -
move the front cap (at least 5" is rec -
om mended).
If a re in force ment (doubler) plate is
needed to meet the ri gid ity re quire -
ments, fab ri cate one us ing the tray as
a guide.
Drill the 4 marked holes with the #19
(.1660) drill bit and in stall the tray
with the 8-32 X 5/8" pan head phillips
screws, nuts, flat wash ers and lock
washers pro vided.
3.4. Installing the An tenna
En sure that the an tenna mount ing lo -
cation meets the re quirements as de -
scribed in An tenna Mount ing
Locations.
A doubler plate will most likely be
nec es sary for the an tenna to meet ri -
gid ity spec ifications in An tenna Mount -
ing Lo cations. A 20 pound force
ap plied in all di rec tions should not
cause an ap pre cia ble dis tor tion in the
air craft skin.
Use the an tenna out line draw ings (fig -
ures 3-4 through 3-7) to de termine
the hole pat tern and drill size.
The BNC to BNC ca ble pro vided
with the C406-N is for both the
121.5/243.0 MHz and 406.028 MHz
trans mit ters. The C406-N was cer tified
us ing a 6 foot RG-142 coax ca ble
coax. Max i mum ca ble loss should not
ex ceed 0.5 dB. In all cases the coax
must meet or ex ceed RG-142 spec i -
fi ca tions. Con tact ARTEX if other
lengths of coax are re quired for your
in stal la tion.
ARTEX AIRCRAFT SUPPLIES DOCUMENT #570-5060
03/22/04 PAGE 3-12
CAUTION: Incorrect wiring of the circular connector may damage the ELT; cause continuous
transmission; or result in no remote reset. Verify wiring against Figure 3-10. A continuity check
is recommended to ensure good connections and proper pin location.
FIG URE 3-9 ELT CONNECTOR IN STALLATION
3.5. Mounting the Cock pit
Light/ Switch As sembly
The switch as sembly must be
mounted in the cock pit where the pi lot
can eas ily reach the switch and see
the light. The re mote switch is re -
quired for the ELT to be TSO C126
approved. It is not op tional.
The switch as sembly re quires a space
about 2" high by about 1" wide both
on the panel sur face and be hind the
panel. Re fer to Fig ure 3-8.
Mark a cut out for the cock pit panel
switch with the di mensions shown in
Figure 3-8.
In stall the switch as sem bly by fit ting it
into the cut out, mark ing the 4 screw
holes and drill ing them with a #28
(.1405) drill bit. Use the 4-40 X ½"
pan head phillips screws, nuts & lock
washers pro vided.
Ap ply the “For Avi ation Emer gency
Use Only /Un authorized Use Pro -
hibited” plac ard that is sup plied in
the In stallation Kit as near the switch
installation as prac tical.
3.6. Wiring the 406 Sys tem
3.6.1. Fab ri cate the Ca ble
NOTE: If the ELT is to be used with
the op tional Pro gramming Adapter
(P/N 453-5068) ELT pins 1, 2, 3, 4,
15 and 16 will re quire con nec tion.
Also, please note that all ca ble har -
ness wires will need to be fed
through the body of the Pro gramming
Adapter prior to con nec tion to the ELT
22-pin cir cu lar con nec tor. Re fer to
Appendix D for wir ing in structions. Fol -
low the wir ing in struc tions of Fig ure
3-10 for in stal la tions with out the Pro -
gramming Adapter.
Use of shielded ca ble is rec om -
mended, es pecially for long ca ble
runs or where EMI is a concern.
Fab ri cate a wire har ness (22 Gauge)
long enough to reach be tween the
ELT in stal la tion lo ca tion and the cock -
pit panel switch lo ca tion. Also al low
for the ARINC 429 data source wires
(a shielded twisted pair), air craft
+28VDC power and ground con nec -
tions. See Fig ure 3-10. NOTE:
　
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