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400 SERIES MAINTENANCE MANUAL Page 5-35
P/N 190-00140-05 Rev. C
5.7.4.9 NAV Serial DME Outputs
Monitor the “VOR DISCRETE OUTPUTS” Test Page and verify that toggling the below listed
outputs between their active and inactive states causes the output voltage on the appropriate line
to switch between low (<.01 V) and high (>8.0 V) states.
Serial DME Clock
Low____ High ____
Serial DME Data
Low____ High ____
5.7.4.10 NAV Parallel DME Outputs
Monitor the “VOR DISCRETE OUTPUTS” Test Page and verify that toggling the below listed
outputs between their active and inactive states causes the output voltage on the appropriate line
to switch between low (<1.0 V) and high (>4.0 V) states. NOTE: The far right digit on the test
page represents the 50 kHz output, the next digit to the left represents the 100 kHz output and so
on, the far left digit has no corresponding output.
PAR DME 50 kHz
Low____ High ____
PAR DME 100 kHz
Low____ High ____
PAR DME 200 kHz
Low____ High ____
PAR DME 400 kHz
Low____ High ____
PAR DME 800 kHz
Low____ High ____
PAR DME 1 MHz
Low____ High ____