SKY899
Installation Manual
009-11900-001
General Information - Page 1-17
Revision F
July 18, 2013
1.6 INTERFACE
The electrical characteristics of all input and output signals are detailed in Appendix A. Listed below in
Table 1-8 is the minimum equipment required to interface with the SKY899. See chapter 2 for details.
Table 1-8: Minimum Interface Equipment Required
AVIONICS EQUIPMENT
SURVEILLANCE
MODE
M
AG
NE
T
IC HE
AD
ING
BARO
M
E
T
RI
C
AL
T
IT
UDE
RADI
O
AL
T
IT
UDE
G
P
S
NAV
L
ANDI
NG
G
E
AR
S
W
IT
CH
S
Q
UAT
S
W
IT
CH
(
W
O
W
)
SU
PPR
ES
SI
O
N
B
U
S
G
PW
S
/EG
PW
S/
T
A
W
S
(AUDI
O
I
NHI
BI
T
)
E
X
T
E
RNAL
L
A
M
P
S
P
ILO
T
C
O
N
TR
O
LS
(P
US
HBUT
T
O
NS
)
A
U
D
IO
SY
ST
EM
S
O
N
-
O
FF
S
W
ITC
H
ATCRBS
(Active Only)
X
N/A
X
X
X
ATCRBS
X
X
X
X
X
X
X
Required.
Optional but will enhance performance. (See individual paragraphs in chapter two for
details.)
Required if Terrain Warning System (GPWS, EGPWS, or TAWS) is installed.
Only if Alternate Display requires it, see display manufacturer's instructions.
Required and may be provided by the display (e.g., WX-1000/SKY497 display OFF/BRT
switch).
1.7 EQUIPMENT REQUIRED BUT NOT SUPPLIED
Antenna Cables
The installer will supply all antenna cables and connectors. The directional
antenna requires three cable assemblies; sum (Sigma Port), bit probe (Probe
Port) and difference (Delta Port). Cable attenuation for the sum and difference
ports must not exceed 2.5 dB. Table 1-9 identifies U. S. vendors who sell
approved cables by the foot. Table 1-10 provides a cable to connector cross-
reference.
RG142B or equivalent may be used for the bit probe cable. Attenuation for the
bit probe cable must not exceed 6 dB.
NOTE
Use of any cable not meeting specifications voids all system warranties.
The document reference is online, please check the correspondence between the online documentation and the printed version.