WSI AV-300, Руководство по установке

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600-00174-001
Rev. 03, 13 May 2008 13 WSI AV-300/350 Installation Manual
U
NITS AND
A
CCESSORIES
R
EQUIRED
, B
UT
N
OT
S
UPPLIED
NOTE: Materials used for installation of the WSI AV-300/350 must be of a type acceptable to
the regulatory agency with authority to approve installations. In the case of TSO-C157,
one means of showing compliance is contained in the Federal Aviation Regulations
(FAR), Part 25, Appendix F. If the materials recommended in this manual do not
conform to the agency requirements, then substitute materials meeting the electrical
requirements may be used.
Table 1-D: Units and accessories required but not supplied.
Wiring
RS-232: 22 AWG twisted, shielded pair or triple cable, length limit is 45 feet (15
meters).
RS-422: 22 AWG twisted, shielded pair, length limit is 200 feet (61 meters).
Power & Ground: 22 AWG twisted, shielded pair, length limit per AC 43.13-1B
Figure 11-2.
Chassis Ground (if case is not grounded): 22 AWG.
Other Connections: 22 AWG, length limit 30 feet (10 meters).
Antenna cables: 50
Ω
coaxial cable. RG-142 or equivalent cable is recommended,
but not required. For RG-142 cable, length must be at least 3 feet and no
more than 48 feet. If other cable type is used, cable and connector losses
should be no more than 9.5dB.
See AC 43.13-1B Sections 5, 6 and 7 for other wire requirements.
Circuit Breaker
Trip-free resettable, 1 Amp (14 or 28-volt systems). Reference AC 43.13-1B
Chapter 11 for appropriate circuit breaker size.
RF Connectors
TNC: Two TNC plug connectors appropriate for the coaxial cable used. These
will be mounted on the satellite antenna cable and will connect to the antenna on
one end and J1 on the other.
BNC: Two BNC plug connectors appropriate for the coaxial cable used. These
will be mounted on the remote control antenna cable and will connect to the
remote control antenna connector adapter on one end and J2 on the other. The
installer may optionally provide a reverse-polarity SMA (RP-SMA) connector for
the remote control antenna end of the cable. Providing the cable-mounted RP-
SMA eliminates the need for the remote control connector adapter and one of the
BNC plug connectors.