User`s manual

SIERRA VIDEO

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

LED

DIP

Switches

U-1 LEDs