Installation
Electrical Interface
50 Transceiver Family 620X DV14307.03 Issue 04 March 2016
Power Indication (/PWR_EVAL)
P1-24 /PWR_EVAL OUT
AR6201 "OFF" - open circuit AR6201 on - closed
circuit to GND (max. 100 mA)
This output indicates whether the transceiver is in "ON" or "OFF" status by means of an open collector
function. The output internally connects to ground when the unit is "ON" and allow a current of
maximum 100 mA to drive an external relay for example. The output shows high impedance when the
transceiver is "OFF".
Note: In order to avoid damage of this output a protection diode in parallel to the
external relay shall connected.
VHF Channel Signal Indication (/SQL_EVAL)
J1-4 /SQL_EVAL OUT
Indicates presence of the VHF channel’s signal
on the audio outputs.
This output indicates presence of the VHF channel’s signal on the audio outputs. It is an open
collector output type. The output internally connects to ground when the unit receives signal on the
selected VHF channel and this audio signal is available on audio outputs. In this case a current of
maximum 100 mA can flow into the transceiver to drive an external relay for example. The output has
high impedance if the unit is switched off.
External Mike Switch (/MIKE_SW)
J1-24 /MIKE_SW IN
Configuration selector CFG1 and CFG2.
ACTIVE state - closed contact to GND
The external Mike switch provides selection between the two available audio in/out configurations:
CFG1 and CFG2. Configurations can also be changed during flight in configuration setup.
• When /MIKE_SW is active then configuration CFG1 is in use.
• When /MIKE_SW is inactive then CFG2 is in use.
Each configuration CFG1 and CFG2 stores several parameters that can be set in configuration setup
pages. (For details, refer to chapter 2.8).
To Next Page
Loading...
