User's Manual Part 2

T
2
CAS / Part No. 9000000
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
34-43-20
15 Feb 2003
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4--16
Table 4--1. TT--950/951/952 T
2
CAS Computer Unit Interface Description (cont)
Connector Pin
Designation
Functional Description
RBP--5D Advisory Inhibit Discrete Input No. 4 (NO)
See RBP--5A.
RBP--5E Increase Climb Inhibit Discrete Input No. 1 (NO)
This input is a ground/open type discrete (Note 1) used to provide information to the
T
2
CAS CU whether to assume that the aircraft cannot achieve a climb rate of 2500 feet
per minute (FPM). The climb inhibit discrete inputs are designed in pairs (No. 1 and No.
2atRBP--5F,or No. 3 at RBP--5G and No. 4 at RBP--5H) but can be wired as a single
input or in conjunction with other aircraft operations to achieve airframe customization of
the climb inhibit feature. The 2500 FPM climb inhibit function is assumed whenever No. 1
and No. 2 are ground or No. 3 and No. 4 are ground.
RBP--5F Increase Climb Inhibit Discrete Input No. 2 (NO)
See RBP--5E.
RBP--5G Increase Climb Inhibit Discrete Input No. 3 (NO)
See RBP--5E.
RBP--5H Increase Climb Inhibit Discrete Input No. 4 (NO)
See RBP--5E.
RBP--5J Climb Inhibit Discrete Input No. 3 (NO)
See RMP--1J.
RBP--5K Climb Inhibit Discrete Input No. 4 (NO)
See RMP--1J.
RBP--6A Airborne Data Loader Link A Discrete Input
This discrete input, along with Data Loader Discrete Inputs No. 2, 3, and 4 (pins RBP--6B,
RBP--6C, and RBP--6D, respectively), is a ground/open type discrete that specifies what
type of data loader (ARINC 603 or ARINC 615) is attached. The T
2
CAS computer has
separate receiver busses and separate data loader enable discrete inputs to support
simultaneous connections to an ADL and PDL. A ground on pin RBP--6A indicates that
an airborne data loader is connected to the rear connector of the T
2
CAS computer. A
ground on pin J1--18, PDL Link A Discrete Input, indicates that a portable data loader is
connected to the front connector of the T
2
CAS computer. The data loader discrete inputs
at RBP--6B, RBP--6C, and RBP--6D are also connected to the data loader discrete inputs
on the front connector (pins J1--51, J1--52, and J1--53, respectively). Listed below is an
active discrete (selected) indicated by a ground and an inactive discrete (not selected)
indicated by an open.
J1--51/ J1--52/ J1--53/
RBP--6A J1--18 RBP--6B RBP--6C RBP--6D Function
Ground Open Ground Open Open ARINC 615 ADL
Ground Open Open Ground Open ARINC 603 ADL
Open Ground Ground Open Open ARINC 615 PDL
Open Ground Open Ground Open ARINC 603 PDL
-- -- -- -- -- -- -- -- Ground SW Part Number is output