Honeywell International Inc. KXP2290 Manuale Utente
n
KXP 2290
Rev. 0c, June/2006 Preliminary 05/24/06 10689I00.JA
Page 2-4
(a)
Consult manufacturer’s coaxial cable data sheet specifications. Using the
length of the top and/or bottom antenna cables and the manufacturer speci-
fied dB loss per foot of cable type, select a particular type or types of cable
that meet the top and bottom cable loss limitations. In anticipation of aging
factors, it is advisable to select a cable type that has an insertion loss that
when combined with interconnect losses will equal a dB loss significantly low-
er than 2 dB.
length of the top and/or bottom antenna cables and the manufacturer speci-
fied dB loss per foot of cable type, select a particular type or types of cable
that meet the top and bottom cable loss limitations. In anticipation of aging
factors, it is advisable to select a cable type that has an insertion loss that
when combined with interconnect losses will equal a dB loss significantly low-
er than 2 dB.
(b)
In diversity installations, it is conceivable that the type of cable selected to
meet the dB loss requirements of the top antenna cable will be different than
the type of cable selection required to meet the dB loss requirements of the
bottom antenna. For example: if the antenna run to one antenna is relatively
lengthy, and the antenna run to the other antenna is relatively short, the longer
run may require low loss antenna cable to meet the less than 2 dB antenna
cable/interconnect requirement while the short run may require a relatively
higher loss cable to exceed the 0.5 dB antenna cable/interconnect loss re-
quirement
meet the dB loss requirements of the top antenna cable will be different than
the type of cable selection required to meet the dB loss requirements of the
bottom antenna. For example: if the antenna run to one antenna is relatively
lengthy, and the antenna run to the other antenna is relatively short, the longer
run may require low loss antenna cable to meet the less than 2 dB antenna
cable/interconnect requirement while the short run may require a relatively
higher loss cable to exceed the 0.5 dB antenna cable/interconnect loss re-
quirement
NOTE:
For installations with diversity transponder antennas
(top and bottom) the cable lengths must be within 10
feet of each other.
(top and bottom) the cable lengths must be within 10
feet of each other.
(c)
Consult manufacturer’s data sheets to determine the nanosecond delay per
foot (at 1030 MHz) for the type or types of cable selected.
foot (at 1030 MHz) for the type or types of cable selected.
2.3.2.2
Primary Power and Circuit Breaker Requirements and Wiring
The KXP 2290 transponder receives primary power from the aircraft power circuit breakers. The
KXP 2290 is designed to operate over the range of 18-32V dc. Power connections, wire sizes,
and circuit breaker requirements are shown on the interconnection diagrams
KXP 2290 is designed to operate over the range of 18-32V dc. Power connections, wire sizes,
and circuit breaker requirements are shown on the interconnection diagrams
.
2.3.3
EQUIPMENT LOCATION
Care should be exercised to avoid mounting components near equipment operating with high
pulse current or high power outputs such as radar and satellite communications equipment. In
general, the equipment should be installed in a location convenient for operation, inspection, and
maintenance, and in an area consistent with the TSO environmental limits.
pulse current or high power outputs such as radar and satellite communications equipment. In
general, the equipment should be installed in a location convenient for operation, inspection, and
maintenance, and in an area consistent with the TSO environmental limits.
Refer to the mechanical installation drawing (
cable and connector assembly diagrams (
), interconnection drawing(s) (
), and connector pin assignments diagrams (
) as required. Determine the mount-
ing location for system components following the guidelines below.