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Third-Party Touchscreen Connection Considerations

When connecting a third-party touchscreen to view and control the GPSMAP® 8700 device, you must observe these considerations.

  • The video data is sent over the HDMI® connection.

  • The touch data is sent over the USB connection.


Block diagram with callouts

Devices

Item

Device

Callout number 1

GPSMAP chartplotter

Callout number 2

Third-party touchscreen monitor

Connections

From

To

Cable

Callout number 1

Chartplotter's HDMI OUT port

Callout number 2

Monitor's HDMI IN port

Garmin® HDMI Cable

Callout number 3

Monitor's USB port

Callout number 4

Chartplotter's USB HOST port

Garmin OTG Adapter Cable

NOTE: If the monitor is not a touchscreen, you should install a GRID™ remote control (not a GRID 20 remote control).
GUID-0E7D71DD-265C-4A81-9C9D-474AAB4BB516 v4
January 2025
© 2019 Garmin Ltd.