Campbell-scientific AL200 ALERT2 Encoder, Modulator, and Sensor Interf Manuel d'utilisateur télécharger pdf (Page 30)

Appendix C. LED Indicators

b. The GPS light remains red for up 13 minutes as the AL200 downloads

leap second information from the satellite.

c. The Serial LED flashes green or red indicating that the AL200 has

been sent data from a datalogger, or data is being internally

transferred from the sensor inputs to memory.

d. The Radio LED is red briefly while the radio is powered up and

allowed to warm up. If the radio is set to always on, this LED will

constantly be red.

e. The Radio LED flashes orange (actually green and red lights, but is

orange in appearance) indicating that the AL200 is transmitting data.

C-2

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Campbell-scientific AL200 ALERT2 Encoder, Modulator, and Sensor Interf Manuel d'utilisateur Page 30