Sierra Video Yosemite - Manual (Page 66)

SIERRA VIDEO
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Processor Health Monitoring and LEDs
Processor LEDs
Each processor monitors its own health and displays a healthy/sick indication on the processor edge
LEDs. Two LEDs indicate the health of the processor on which they are located, two LEDs indicate the
health of the other redundant processor, and two offer other important information. Both processors
continually monitor the following expected conditions within the processor:
 Presence of vertical sync interrupt.
 Regular operation of the crosspoint control software
 Regular polling of control panels
 Regular polling of redundant processor
505150 Control Processor
Board LEDs & DIP Switches
LEDa
LEDb
LEDc
LEDd
LEDe
LEDf
DIP
Switches
U-1 LEDs
1
2
3
4
5
6
7
8
9
10