User's Manual
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
TCAS 3000 Traffic Alert and Collision Avoidance System
34−43−23
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Page 4−5
15 Dec 2005
Table 4−1. TCAS 3000 Computer Unit Loading/Gradient Specifications (cont)
Connector Pin
Designation
Functional Description
RMP−5A Reserved for future use.
RMP−5B Reserved for future use.
RMP−5C Reserved for future use.
RMP−5D Reserved for future use.
RMP−5E ADS−B Program Input
Intruder File Enable
RMP−5F ADS−B Program Input
GP Bus enable
RMP−5G ADS−B Program Input
Future Spare
RMP−5H Reserved for future use.
RMP−5J Reserved for future use.
RMP−5K Air Ground Discrete Input (NO): (Weight−On−Wheels)
This discrete input to the TCAS computer unit indicates the status of the Air/Ground or
Weight−On−Wheels (WOW) switch. TCAS filters this input to make sure it remains in a
steady state a minimum of 4 seconds before an Air/Ground transition is recorded. An
open indicates the aircraft is airborne and a ground indicates the aircraft is on the ground.
Inputs should be diode isolated from each other.
RMP−6A, 6B ARINC 429 Performance Limit Input: [RMP−6A (A), RMP−6B (B)]
This input is provided for future applications to receive climb rate performance limit
information from an external device such as a Flight Management Computer.
RMP−6C Magnetic Heading Valid Discrete Input
Reserved for future use.
RMP−6D Performance Limit Discrete Input (NO)
This input provides the TCAS computer unit with an input from the Flight Management
Computer (or equivalent) which indicates when the aircraft cannot achieve a 1500 FPM
climb rate. When this input is ground, the climb rate is not limited and no action is
needed by the TCAS computer unit. When this input is open, the climb rate is limited
when the aircraft is above the value set by the altitude limit program pins (RMP−6E thru
RMP−6J).