Garmin MX20 Installation Manual - A.5 Stormscope Inputs
Other manuals for MX20:
Quick Reference Manual, Pilot's Manual, Pilot's Manual, User Manual, Installation Manual
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Specifications
MX20 Installation Manual
560-1025-09 Rev E
A-7
Figure A-3. Altitude Data Input
A.5 Stormscope Inputs
The WX-500 is the only Stormscope that the MX20 MFD interfaces with. It can be connected to RS-422
or RS-232.
RS-232
Connection TX
J3-20
RX
J3-8
RS-232_GND
J2-5
Cable
Twisted shielded triad 24 AWG wire
Voltage
Logic 0 (space) Min: +5V, Max: +15V
Logic 1 (mark) Min: -15V, Max: -5V
Baud Rate
9600
Load Impedance
RS-422
Connection
TX+
J3-25, TX- J3-13
RX+
J3-24, RX- J3-12
GND
CASE_GND
Cable
Twisted shielded pair 22 AWG
Voltage
Logic 0 (space) Min (A-B): +2V, Max (A-B): +6V
Logic 1 (mark) Min (A-B): -6V, Max (A-B): -2V
Baud Rate
9600
Load Impedance