User's Manual

ROCKWELL COLLINS
COMPONENT MAINTENANCE MANUAL with IPL
TDR-94, PART NO 622-9352
STEP PROCEDURE DESIR ED RESULTS
a. Ensure that both Air/Ground Discrete #1 (P2-53) and
Air/Ground Discrete #2 (P1-27) are NOT connected to ground
(i.e., establish the airbor ne state).
b. Ensure that both Configuration Select “0” (P1-28) and
Configuration Select “1” (P1-17) are NOT connected to ground.
c. Ensure that there is no Ar inc 429 Label 203 present on the
selected Altitude Input Bus.
d. Provide the transponder unit with a GPS Time Tag signal via
the GPS Time Tag inputs (P2-37 High, P2-38 Low). The GPS
time tag signal shall be a differential (0 –5 vdc) 1 millisecond
pulse, at a repetition rate of 1 per second.
e. Via the GPS/GNSS Input Data Bus, provide the transponder
with the appropriate labels and data indicated in Figure
1018/GRAPHIC 34-50-96-99B-089-A01. Each data parameter
shall be updated at least once per second.
f. Verify that the transponder properly transmits an
”Even-Second” DF=17 Extended Squitter transmission having
the exact structure for the ”ME” field indicated in Figure
1018/GRAPHIC 34-50-96-99B-089-A01.
N
OTE: The single A ntenna Bit (RF bit 40) w ill be set to a "0"
for the TDR-94D and a "1" for the TDR-94.
g. Verify that the transponder properly transmits the Airborne
Po sition Message at random intervals that are uniformly
distributed over the range from 0.4 to 0.6 seconds (i.e., 0.5
+/-0.1 seconds).
h. Verify that the transponder properly transmits the Airborne
Po sition alternately from the top and bottom antenna ports for
the TDR-94D and from the bottom antenna only for the TDR-94.
i. Verify that the transponder continues to transm it DF=11
Acquisition Squitters while continuing to transmit the Airbor ne
Position Squitter Messages as specified steps f, g, and h.
j. Ver ify that the transponder properly transmits an
”Odd-Second” DF=17 Extended Squitter transmission having
the exact structure for the ”ME” field indicated in Figure
1018/GRAPHIC 34-50-96-99B-089-A01.
9.3D GPS Bus / Airborne Position Extended Squitter / Time Tag
Ve r ification (-308, -309 ONLY)
Final Performance (Customer Acceptance) Test. Cont.
T
able 1001/Table 34-50-96-99A-009-A01
34-50-96
Page 1028.1
Jun 20/08