AR6201 - RT6201 - RCU6201 - AR6203
Page 2-60 DV 14307.03 Issue 1 09/2013
2.10.5 AFCU/AGC/AFWB
Not used in aircraft installations, remove pins P1-15 and pin P1-16.
2.10.6 CPIN
No influence in retrofit installation
2.10.7 +13.75V Switched
The AR620X provides on pin P1-24 a low signal when the unit is switched on
and a high impedance signal, when switched off. This is not compatible to the
AR4201, which provided a positive power supply when switched on and high
impedance when switched off.
In cases where slave equipment needs to be switched ON / OFF in sync with the
To switch the transceiver ON/OFF connect a relay to pin P1-24.
2.10.8 PWR_EVAL
The AR620X provides on pin P1-24 a low signal when the unit is switched on
and a high impedance signal, when switched “OFF”. This function is different
to the AR4201, which provides supply voltage out when switched “ON” and no
supply voltage when switched “OFF”.
In cases where slave equipment needs to be switched ON / OFF in sync with the
switching ON / OFF the AR6201-(XX) connect a relay to pin P1-24.
2.11 Post Installation Tests
Note: It is assumed that the “Installation Setup” (Chapter 2.8) has been done
before the Post Installation Tests will be carried out.
Once the AR620X is installed, complete a test procedure to verify system
functionality. Ensure compliance with authority required procedures. Refer to
the installation order of the minor change document or use an own approved
test protocol for VHF units. The following chapter below provides guidance
for such tests.
2.11.1 Mechanical Installation and Wiring Check
Verify all cables are stored securely and shields connected properly to
signal ground. Check the movement of aircraft controls to verify there is no
interference.
Verify all screws are tight and the connectors on the rear side of the unit
are secured.
2.11.2 Power Supply
Check the power supply lines and confirm correct polarity. Confirm that the
aircraft power supply is within the specified limits, with and without a
running engine.
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