Honeywell KXP2290, Руководство по установке

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KXP 2290
Rev. 0c, June/2006 Preliminary 05/24/06 10689I00.JA Page 2-5
2.3.3.1 Transponder And Mounting Tray Locations
The KXP 2290 Mode S Transponder shares a mounting tray with the Honeywell APEX KMC 2210
controller and is part of the APEX cockpit panel configuration.
Except for antenna cables the lengths of the cables from the KXP 2290 transponder mounting tray
connector to other system units are not critical because unit interfaces are designed with high im-
pedance inputs, low impedance outputs, and low noise susceptibility characteristics.
2.3.3.2 Antenna(s)
The antenna(s) should be well removed from other antenna projections, the engine(s), and pro-
peller(s). It should also be well removed from landing gear doors, access doors, or other openings
which will break the ground plane for the antenna(s). The surface directly beneath the antenna(s)
should be a flat plane over as large an area as possible.
A back-up plate for each antenna should be used for added strength on thin-skinned aircraft.
The antenna(s) need to be within 5 degrees of the centerline
To prevent rf interference, the antenna(s) must be physically mounted a minimum distance of
three feet from the KXP 2290 and the wiring harness.
The transponder antenna(s) should be mounted a minimum of 30 inches away from the TCAS or
DME antennas and four feet from the ADF sense antenna.
Where practical, plan the antenna location(s) to keep cable lengths as short as possible and avoid
sharp bends in the cable to minimize the VSWR.
Avoid running other cables or wires near the antenna cable(s).
On pressurized aircraft, the antenna(s) should be sealed using an approved sealant, such as RTV
No. 3145 (P/N 016-01082-0000) or equivalent, around the connector and mounting hardware.
The antenna mounting(s) should be sealed from the outside for moisture protection using RTV or
equivalent.
Mount the antenna(s) in as clean as environment as possible, away from exhaust gases and oils.
The antenna(s) should be kept clean. If left dirty (oil covered), the range of the transponder may
be affected.
For installations with diversity transponder antennas (top and bottom) the distance between the
top and bottom antennas on the horizontal plane of the aircraft fuselage must not exceed 25 feet
(7.62m).
2.3.4 KXP 2290 INSTALLATION
2.3.4.1 General
The mounting tray for the transponder/control unit should be mounted using the dimensions spec-
ified in the outline and mounting drawing,
FIGURE 2-2 KXP 2290 INSTALLATION DRAWING .
KXP 2290 wiring should be per the system interconnect diagram, FIGURE 2-5 KXP 2290 INTER-
CONNECTION DRAWING .
2.3.4.2 Transponder
(1) Slide the transponder into the tray until the front lobe touches the mounting tray.
(2) Turn the Allen wrench clockwise until the rear lobe engages the mounting tray slot.
Continue turning the wrench clockwise until tight.
CAUTION:
DO NOT OVERTIGHTEN THE LOCKING FASTENER