In-Situ Aquaculture Buoy Manual (purchased before 28 May 2013) - Manual (Page 25)

Host PC 25
FIGURE 18. Phone alert limits
The system will call any number set up in the MyPhoneNumbers.txt file
in the applications folder. If a number is not answered, the next
number in the list of numbers is called. The system continues to cycle
through the list of numbers until someone answers.
When the call is answered, a voice message indicates the type of
problem. The answerer must press a digit on the phone to signal to the
computer that the message was received. Otherwise, the computer
will continue to call.
Pressing the digit will cancel the alert for that particular device. No
further alerts for that device will be generated until after the problem
has been corrected. Alerts for other devices will still be sent.
Additionally, the alert can be turned off by clicking the Turn Off Alarm
button on the Pond Status screen or by un-selecting the Active box on
the Set Phone Alerts window.
5.9 STATUS
This menu item launches the Farm Status Screen.
5.10 SETUP
This menu item launches the Floor Plan screen that is used to lay out
the farm.
5.11 READINGS THAT INDICATE PONDS WITH BUOY PROBLEMS
5.11.1 Black Zero Oxygen Reading
A black zero oxygen reading indicates an oxygen sensor problem. The
sensor is not sending a signal to the microprocessor and needs to be
serviced.
5.11.2 Red Zero Oxygen Reading
A red zero oxygen reading indicates that the buoy is not
communicating with the host. The buoy power supply, microprocessor,
and radio module should be checked.