Becker AR620X - Dynamic Microphone Input; Temperature Sensor; RS232 Interface

Installation
Retrofitting AR4201 with AR6201
DV14307.03 Issue 04 March 2016 Transceiver Family 620X 91
Pin
No.
AR4201
Pin Name
AR4201
Function
AR6201
Pin Name
AR6201
Function
Full
compatible
P1-24
+13.75V
SWITCHED
Power on monitor
Switched positive
power supply.
/PWR_EVAL
Power on monitor,
open collector output,
conducting to GND for
"On"
No
P1-25 GROUND
Power supply return /
Ground
P_SUPP_GND
Power supply return /
Ground
Yes
2.12.2. Dynamic Microphone Input
Retrofitting an AR4201 with the AR6201 in a typical glider installation with a dynamic microphone is
shown below:
Dy n amic Mike
18
6
5
8
MIKE_STD_LO
MIKE_DYN_LO
MIKE_STD_HI
6
5
MIKE_DYN_HI
8
18
Figure 2-31: AR6201 with wiring interface for AR4201
Connect the cable shielding to pin P1-6, which is the low side input for dynamic microphone. Because
in AR6201 this input is balanced, the cable shield is no longer connected to ground (unlike it was with
the AR4201). In most cases, it is not a problem.
If interference with the microphone signal does occur, it is recommended to carry out the following
modification:
Connect Pin P1-6 with Pin P1-8 (the cable shield is grounded). See Figure.
Dy n a mic Mike
5
8
18
6
MIKE_STD_LO
MIKE_STD_HI
MIKE_DYN_LO
MIKE_DYN_HI
5
6
18
8
Figure 2-32: Modified dynamic microphone wiring interface for AR6201
2.12.3. Temperature Sensor
The AR6201 has no temperature sensor input. Remove wire from pin P1-8 and pin P1-20.
2.12.4. RS232 Interface
The AR6201 has no RS232 interface for remote control. Remove wire from pin P1-9 and pin P1-22.