User's Manual

SYSTEM DESCRIPTION AND INSTALLATION MANUAL
TCAS 3000 Traffic Alert and Collision Avoidance System
344323
Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
Page 45
15 Dec 2005
Table 41. TCAS 3000 Computer Unit Loading/Gradient Specifications (cont)
Connector Pin
Designation
Functional Description
RMP5A Reserved for future use.
RMP5B Reserved for future use.
RMP5C Reserved for future use.
RMP5D Reserved for future use.
RMP5E ADSB Program Input
Intruder File Enable
RMP5F ADSB Program Input
GP Bus enable
RMP5G ADSB Program Input
Future Spare
RMP5H Reserved for future use.
RMP5J Reserved for future use.
RMP5K Air Ground Discrete Input (NO): (WeightOnWheels)
This discrete input to the TCAS computer unit indicates the status of the Air/Ground or
WeightOnWheels (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.
RMP6A, 6B ARINC 429 Performance Limit Input: [RMP6A (A), RMP6B (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.
RMP6C Magnetic Heading Valid Discrete Input
Reserved for future use.
RMP6D 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 (RMP6E thru
RMP6J).