Avidyne DC50 Datalink Coupler Installation Manual
Page 11
P/N 600-00082-000 Rev 04
4 Post Installation System Checkout
4.1 EMI Check
Verify that no interference is noted through the use of comm and the
datalink on other systems in the aircraft. The operation of these systems,
with the coupler installed, should not result in erroneous data displayed
by navigation systems.
1. Turn off power to comm control head.
2. Power on the avionics master.
3. If applicable, turn power on to audio control panel and make sure
the comm is selected.
4. Check the coupler pins P1-1 for +28V and P1-8 for Airframe
ground with volt meter or for 700-00015-000, or +14 VDC at pin
P1-1 for 700-00015-001.
5. Check for correct operation of PTT of the comm connected to the
coupler, with an ohm meter at the coupler connector P1-5.
6. Power on comm.
7. Verify operation of the datalink, according to the datalink
installation manual.
8. Conduct a radio check by transmitting and receiving via the
comm.
9. Re-verify operation of the datalink according to the datalink
installation manual.
