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Gecko Frames Instruction Manual 31
Rear Connectors
Frame Alarm Conditions
The conditions monitored by Frame Alarm reporting are:
• Frame Health
• Power supply 1 voltage
• Power supply 2 voltage
• Fan rotation
• Frame temperature
•Module Health Bus (8900 Video Frames only)
• Power supply voltage
• Signal present at input
•EQ warning
The Module Health bus provides a means for older (legacy) or less capable
modules (such as DAs with no microprocessor) that cannot communicate
over the Frame serial bus to report alarm conditions to the Frame Monitor
or 8900NET module. The reporting is done using a voltage level sent by the
module to the Frame Alarm connector. When a problem exists on the
module, the Module Health bus will indicate that a problem exists on the
module but will not indicate what the problem is.
Alarm conditions are enabled or disabled by using the Alarm Reporting
DIP switch(es) on either the Frame Monitor or 8900NET modules. Refer to
Enabling Alarms and Fan Speed Control Option on page 39 for the Frame
Monitor module. For information on setting the 8900NET switches, refer to
the 8900 Network Interface Module Instruction Manual.
In addition to fault reporting through the Frame Alarm connector, there is
a red Fault LED on the 8900TF/TFN front cover. This LED is off when no
fault conditions are detected and on when either an internal fault or a
signal error is detected.