Honeywell International Inc. KT73 Manuale Utente

Rev 0, October/2002

10563I00.JA

Page 2-55

2.4.1.4

Ramp Test (TIS and/or ADS-B Functions)

The following procedures check the TIS and ADS-B functions of an installation without requiring 
a ramp tester with more capability than required for the testing of ATCRBS and Mode S function-
ality.

If the system includes the TIS function, use the following procedure (requires a KMD 550/850):

(1)

Press the “TRFC” button on the Display Unit (KMD 550/850).

(2)

Switch the mode to “ON”.

(3)

Verify that the message “TIS UNAVAILABLE” is being displayed on the KMD 550/
850.

(4)

If the message “NO DATA RECEIVED FROM TRAFFIC UNIT” is being displayed, 
this indicates that no data is being received from the KT 73.  This could be due to 
the following.

(a)

The KT 73 is not powered up.

(b)

The wiring between the KT 73 and the KMD 550/850 is not correct.

(c)

The KT 73 has not been configured to provide the TIS function.

If the system includes the ADS-B function, use the following procedure (requires a KLN 94 or KLN 
900):

(1)

Place the KT 73 in the Test Mode (see 3.3.1 “When the unit is in TST (Test) mode:”).

(2)

After performing the self-test sequence, the KT 73 should display “TEST OK”.  The 
KT 73 will issue the audio message “TEST OK”.

(3)

Switch the KLN 94 off.

(4)

Momentarily switch the KT 73 to “ON” then back to the “TST” mode.

(5)

The KT 73 should display “SBY F604” and the audio should announce “CHECK 
FAULT CODES”.

(6)

Switch the KLN 94 on and allow it to complete its initialization activity.

(7)

Momentarily switch the KT 73 to “ON” and then back to the “TST’ mode.

(8)

The KT 73 should display “TEST OK”.  The KT 73 will issue the audio message 
“TEST OK”.

(9)

If in step 2 the KT 73 displays a fault code, consult the fault code table in paragraph 
3.3.3 and take the indicated corrective action.

(10)

If in step 2 any of the “F6XX” codes or the “F501” code are (is) displayed, check that 
the appropriate source has power.  If is does, check the wiring between the source 
and the KT 73.

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