Garmin MX20 - Avionics Outputs; Avionics Inputs; Avionics Outputs (I;O Model); Avionics Inputs (I;O Model)

Specifications
48 560-1025-09 Rev E MX20 Installation Manual
3.1.6 Avionics Outputs
Serial Ports ..................................................... 3 High Speed RS-232 (Ports 1, 2, 3)
1 High Speed RS-422 (Port 4)
3.1.7 Avionics Inputs
Serial Ports ..................................................... 3 High Speed RS-232 (Ports 1, 2, 3)
1 High Speed RS-422 (Port 4)
Discrete Inputs................................................ 4 General Purpose
3.1.8 Avionics Outputs (I/O Model)
Serial Ports ..................................................... 2 ARINC 429 High/Low
Discrete Outputs ............................................. 3 General Purpose
3.1.9 Avionics Inputs (I/O Model)
Serial Ports ..................................................... 2 ARINC 429 High/Low
2 ARINC 453/708 Radar
3.1.10 Serial Interface Data Sources
Position Source............................................... GX50/55/60/65, CNX-series (or GNS 480), or internal
GPS
SL50/60
Trimble 2000, 2000 Approach, 2000 Approach Plus, 2101,
2101 I/O, 2101 I/O Plus
Garmin GNC 250 XL, GNC 430/530, and equivalent
Bendix/King KLN 90B TSO and equivalent
Northstar Avionics M3 GPS Approach
NAV Source ................................................... SL30, CNX-series (or GNS 480)
Altitude Source............................................... SL70
CNX-series (or GNS 480),
GX50/55/60/65 (with extended data enabled)
Trans-Cal SSD120-( )(x)-RS-232-( )
ICARUS U3000
Sandia Aerospace Model SAE5-35
Traffic Source................................................. Garmin AT UAT (legacy)
Garmin AT GDL 90 UAT
(Only one traffic source may be connected L-3 (Goodrich) SKY497 (MX20 I/O Model Only)
to the MX20) L-3 (Goodrich) SKY899 (MX20 I/O Model Only)
Honeywell KMH 820 (MX20 I/O Model Only)
Ryan TCAD 9900B (MX20 I/O Model Only)
Ryan TCAD 9900BX (MX20 I/O Model Only)
Garmin GTX330 (MX20 I/O Model Only)
Weather Source .............................................. Garmin AT UAT (legacy) (FIS)
(Only one FIS source may be connected to Garmin AT GDL 90 UAT (FIS)
the MX20) Garmin AT GDL 69/69A (FIS)
(Only one radar source may be connected to WSI InFlight AV-200 (FIS)
the MX20) (MX20 will communicate at 38,400 baud)
Garmin GWX 68 Radar (MX20 I/O Model Only)