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Appendix
Blink Codes
The GDL 30/30A turns on and off when a Chartplotter to which it is connected is turned on or off. The
two-color (Green/Red) LED on the GDL 30/30A indicates the current operational status of the module. Codes
are:
Green blinking, on for 1 second, off for 1/2 second (slow blink)
Status: GDL 30/30A is on and is receiving an XM signal.
Solid Red (no blink)
Status: Software failure - Call Garmin Customer Support.
Red blinking, on for 1/10 second, off for 1/10 second (very fast blink)
Status: System alarm. The display device gives a message indicating the type of failure.
Appendix A: Blink Codes
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