Product Info
PTR for VHF-4000 and VDL-2000 Data Radios
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©2000 Rockwell Collins, Inc Page 37 of 61
7.2.3 Data Bus Operation
7.2.3.1 CMU_IN_A, PORT_A/B_SELECT, 429_LS_OUT_1 (VHF-4000 ONLY), AND
429_HS_OUT_1 (VHF-4000 ONLY)
1)
Set the UUT discrete inputs to “standard discrete configuration”.
2)
Set the ARINC control data to “Standard 25 kHz ARINC Configuration”.
3) Ground Port_RIU_Install_Select (Pin 43)
4)
Ground Port_A/B_Select (Pin 55)
5)
Cease applying Label 030 ARINC 429 word on all input ports
6)
Simultaneously, using Label 030 ARINC 429 word, tune radio to 120.000 MHz via CMU_IN_A bus
(pins 1 and 2 VHF-4000, pins 36 and 37 VDL-2000) and 130.00 MHz via CMU_IN_B bus (pins 7 and
8 VHF-4000, pins 2 and 28 VDL-2000).
7)
Verify Label 030 ARINC 429 word on 429_LS_Out_1, and 429_HS_Out_1, busses indicate channel
120.000 MHz
7.2.3.2 CMU_IN_B, PORT_A/B_SELECT, 429_LS_OUT_2 (VHF-4000 ONLY), AND
429_HS_OUT_2 (VHF-4000 ONLY)
1) Set the UUT discrete inputs to “standard discrete configuration”.
2)
Set the ARINC control data to “Standard 25 kHz ARINC Configuration”.
3)
Ground Port_RIU_Install_Select (Pin 43)
4)
Open Port_A/B_Select (Pin 55)
5)
Cease applying Label 030 ARINC 429 word on all input ports
6)
Simultaneously, using Label 030 ARINC 429 word, tune radio to 120.000 MHz via CMU_IN_A bus
(pins 1 and 2 VHF-4000, pins 36 and 37 VDL-2000) and 130.00 MHz via CMU_IN_B bus (pins 7 and
8 VHF-4000, pins 2 and 28 VDL-2000).
7)
Verify Label 030 ARINC 429 word on 429_LS_Out_2, and 429_HS_Out_2, busses indicate channel
130.000 MHz
8)
Unground Port_RIU_Install_Select (Pin 43)
7.2.3.3 TUNE_IN_A (VHF-4000 ONLY)
1)
Ground Port_A/B_Select (Pin 55)
2)
Cease applying Label 030 ARINC 429 word on all input ports
3)
Apply Label 030 ARINC 429 frequency word to TUNE_IN_A (Pins 3 and 4) with frequency of
125.000 MHz
4)
Verify Label 030 ARINC 429 word on 429_LS_OUT_1 bus (Pins 5 and 6) indicates 125.000 MHz
7.2.3.4 TUNE_IN_B (VHF-4000 ONLY)
1) Unground Port_A/B_Select (Pin 55)
2)
Cease applying Label 030 ARINC 429 word on all input ports
3)
Apply Label 030 ARINC 429 frequency word to TUNE_IN_B (Pins 21 and 22) with frequency of
135.000 MHz
4)
Verify Label 030 ARINC 429 word on 429_LS_OUT_1 bus (Pins 5 and 6) indicates 135.000 MHz
1.1.1 429_Input_Port_C, Port_C_Sel, Unit_SDI_A_Sel, and Unit_SDI_B_Sel(VHF-
4000 only)
1) Ground Burst_Tune_Sel (Pin 49).
2) Ground Port_C_Sel (51)
3)
Cease applying Label 030 ARINC 429 word on all input ports
4)
Apply Label 030 ARINC 429 frequency word to TUNE_IN_C (Pins 15 and 16) with frequency of
121.000 MHz and SDI of 00.
5)
Verify Label 030 ARINC 429 word on 429_LS_OUT_1 bus (Pins 5 and 6) indicates 121.000 MHz and
SDI of 00.