Page 7 of 19 pages
Electrical self-check:
The easyWATCHBOX has got an internal self-check, which gives you in-
formation, about the status of power, GPS and AIS data.
The Bat.-low LED should always light up green.
If it lights up red, the supply voltage is too low.
When no AIS data is available (AIS receiving unit is turned off, or
maybe a broken wire), or CPA-alert is deactivated, the LEDs for time
and distance are turned off at all.
When GPS and AIS data are going into the easyWATCHBOX, the ac-
tual setting LEDs (one for time and one for distance) show green
light.
The blinking of LEDs for time and distance indicates the standby
mode of the easyWATCHBOX (GPS data is available, AIS data not).
When AIS signals are being received, the LEDs are lighting up.
When AIS signals are missing or lost for at least 30 sec (so only GPS
data are available), the easyWATCHBOX changes over to standby
mode again and the LEDs start blinking.
The easyWATCHBOX needs GPS-NMEA data and AIS-NMEA data. Only
when both data are available, the watch box can calculate the distance
to other ships and possible collision scenarios.
