User's Manual

ROCKWELL COLLINS
COMPONENT MAINTENANCE MANUAL with IPL
TDR-94, PART NO 622-9352
STEP PROCEDURE DESIRED RES ULTS
14A.0 SIL Designator Requirements (-108, -308, -309, -408, -409
status TDR-94/94D only)
a. Ver ify that the SIL Designator discrete input, P2-54 is in the
open-circuit state.
b. Interrogate to transponder with MODE-S interrogation as
indicated in Figure 1015/GRAPHIC 34-50-96-99B-033-A01
to request BDS register 6,5 (Aircraft Operational Status).
c. Verify that the transponder responds properly with a
DF=20 reply that has the "MB" field indicated in Figu
re
1015/GRAPHIC 34-50-96-99B-033-A01.
d. Connect the SIL Designator discrete input, P2-54, to ground
to initiate a higher Surveillance Integrity Level.
e. Interrogate the transponder with the MODE-S interrogations
indicated in Figure 1015/GRAPHIC 34-50
-96-99B-033-A01
to request BDS register 6,5.
f. Verify that the transponder responds properly with a
DF=20 reply that has the "MB" field indicated in Figure
1015/GRAPHIC 34-50-96-99B-033-A0
1.
g. Remove the ground from SIL Des
ignator discrete input,
P2-54.
15.0 TDR-94D DIVERSITY TEST
15.1 Bottom Signal Greater Than Top Signal
Interrogate into the top antenna port with a UF=11 MODE-S
interrogation that has a s
ignal level of -53 dBm. Interrogate into
the bottom antenna port with a UF=11 signal at -50 dBm that
is delayed not less than 100 ns from the top signal. Verify that
the reply transmits on t
he bottom antenna port at a rate of AT
LEAST 90%, and replies from the top antenna port are at a
rate NOT GREATER than 10%.
90% or > replies on the bottom antenna por t,
10% or < on top anten
na port
____ (x)
Final Performance (Customer Acceptance) Test. Cont.
Table 1001/Table 34-50-96-99A-009-A01
34-50-96
Page 1040
Jun 20/08