Grass Valley 8900 Frames Gecko 2009 User Manual
Page 59
Gecko Frames — Instruction Manual
59
Video Frame
The conditions monitored by SMPTE Alarm reporting are:
•
Frame Health
•
Power supply 1 voltage
•
Power supply 2 voltage
•
Fan rotation
•
Frame temperature
•
Module Health (capability module dependent, refer to specific module
instruction manual).
•
Power supply voltage
•
Signal present at input
•
EQ warning
•
EDH Monitoring (capability module dependent, refer to specific
module instruction manual).
•
EDH error detected
The impedance between the center conductor and shield of J101 can be in
one of two states:
•
Open – less than100 μA of current will flow, and
•
Closed – less than 2 V will appear from center conductor to shield with
less than 20 mA of current flowing.
There are three operational conditions (capability is module dependent,
refer to specific module instruction manual):
•
Open – no faults,
•
Closed – there is an internal fault, and
•
Pulsing – there has been a signal error detected in one of the modules.
In addition to fault reporting through the SMPTE Alarm connector, there is
a RED Fault LED on the Frame Monitor and 8900NET Network Interface
modules that is visible through the Fault window of 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.
A number of frames can be coupled together as one alarm circuit by using
a T-connector. Refer to
for a typical alarm circuit inter-
connect diagram.