GENERAL D E S C R I P T I O N
1. Application
The single block Mode S transponder BXP6401-X-(XX) is the airborne component of the
Air Traffic Control (ATC) Mode S Secondary Surveillance Radar system with added
ADS-B Transmitting Subsystem functionality. It acts as a part of the surveillance system
in two ways:
l
as a M o d e S Transponder w h i c h provides responses t o ground station i n t e rroga
-
tions and allows air traffic control to locate, identify and track aircraft
l
as an ADS-B Broadcast-Only System which spontaneously broadcasts aircraft in
-
formation
2.
General d e s c r i p t i o n
A. The B X P 6 4 0 1 - X - ( X X ) t r a n s p o n d e r is d e s i g n e d a s a s i n g l e block unit a n d is in-
tended f o r installation in t h e instrument panel o f aircraft. T h e d i m e n s i o n s correspond t o the standard i n s t r u m e n t size with a 58 m m ( 2 ¼ inch) d i a m e t e r .
B. All c o n t r o l e l e m e n t s are l o c a t e d o n the f r o n t panel of t h e unit. The t w o 25-pin
unit c o n n e c t o r s for connection t o the aircraft i n t e r w i r i n g , the 5 - p i n s u b m i n i a t u re c o n n e c t o r for the A d d r e s s Module AM6400-1-(XX) a n d the T N C a n t e n n a
socket a r e located at t h e rear side o f the u n i t .
C. Se r i a l interfaces R S - 4 2 2 a r e available a t t h e unit c o n n e c t o r s .
D. Th e Mode S t r a n s p o n d e r provides t h e f o l l o w i n g features:
(1) In t h e selective mode ( M o d e S), the G r o u n d Control can i n t e r r o g a t e the
transponder individually u s i n g an ICAO-24-bit a d d r e s s , which is u n i q u e
to the p a r t i c u l a r aircraft.
(2) Support o f the SI c o d e (Surveillance Identifier)
(3) Register c a p a b i l i t y for elementary s u r v e i l l a n c e (ELS) and e n h a n c e d sur-
veillance (EHS)
(4) Extended s q u i t t e r s transmission
(5) Data l i n k capability
(6) GPS receiver connection capability
(7) ADS-B Broadcast-Only System Class B0 i.e. broadcasts following data:
- Airborne Position Message
- Surface Position Message
- Airborne Velocity Message
- Extended Squitter Aircraft Status Message
NOTE:
Actual generation o f each ADS-B m e s s a g e type and d a t a within each
message depends o n availability of navigation data and GPS engine ca
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pabilities.
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INSTALLATION AND O P E R A T I O N BXP6401-X-(XX)