Honeywell International Inc. 9PGTPA-100A Manuale Utente

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Page 2027
1 Dec 2003
34-45-4
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MAINTENANCE MANUAL
CAS-100 COLLISION AVOIDANCE SYSTEM
Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
(e) PPI Radar/TCAS Display Connectors
See PPI Radar/TCAS display manuals given in Table 5 of the DESCRIPTION AND 
OPERATION section of this manual.
(f)
Omni Antenna Connector
Connectors for the coaxial cable connection from the TCAS processor to the omni 
antenna can be N-type female or blade type connectors dependent on user 
installation specifications.
D. Wire Strapping Options
CAS-100 wire strapping options are implemented by externally connecting pins on the 
CAS-100 unit connectors.  The configurations of the straps are identified by the software in the 
applicable unit. In most cases, the selected strap is connected to a common ground pin on the 
related connector, but in some conditions can be connected to aircraft ground.
(1) TPA-100A TCAS Processor Straps
(a) Cable Delay Program Straps
These three straps, on RBP pins 7G, 7H, and 7J, are selectively connected to a 
common on RBP pin 7K, to adjust for the differences in coaxial cable lengths 
between the top and the bottom TCAS antennas (a maximum of 300 nanoseconds).  
See Interwiring diagram Figure 2015 and paragraph 6.B. for strapping details.
(b) Aircraft Altitude Limit Program Straps
Some aircraft can not get a 0.25 G vertical acceleration to a 1500 FPM climb rate 
for an altitude increase of 750 feet above a specific altitude in all conditions.  The 
CAS logic is made aware of these conditions by the altitude limit straps until an 
applicable resolution advisory, for example DON’T CLIMB can be issued.  These 
program pins are for selecting the CAN’T CLIMB altitude in 2000 foot increments 
until 62,000 feet.  The jumper wires from the pins RMP-6E through RMP-6J to 
RMP-6K are necessary to program the necessary altitude.  The limits set by the pins 
show the worst case.  The limits set by the pins must be used as a default when the 
flight management computer shows that the climb must be limited.  If no jumpers 
are installed the altitude will be zero feet.
The five strap pins on RMP-6E, 6F, 6G, 6H, and 6J are selectively jumpered to the 
same, RMP pin 6K, to program the set altitude limit as follows:
Pin
Altitude Limit (Feet)
RMP - 6E
2000
RMP - 6F
4000
RMP - 6G
8000
RMP - 6H
16000
RMP - 6J
32000