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PCBs in the card cageFigure 4-19:
4. Note the location and direction of any board removed. Release the catch(es) and
remove/replace the circuit board(s) as necessary.
Replacing AC/DC power supply
The AC/DC power supply is mounted on the left wall of the lower enclosure adjacent to the
card cage and is accessible by removing the front panel and the switch panel or LOI from
the lower enclosure.
WARNING!
Disconnect all electrical power to the unit and ensure the area is free of explosive gases. Failure
to follow this warning may result in injury or death to personnel or cause damage to the
equipment.
Operation and maintenance
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Operation and maintenance
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