Belden GRASS VALLEY DENSITE 3+ FR4, Руководство пользователя

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Service and Maintenance
Summary
Changing the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Replacing the Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Replacing the Frame Ventilation Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Cleaning and replacing the front-door air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Field-Serviceable Items
Field-serviceable items on the Densité 3+ FR4 frame itself include the power supplies, the
controller card, the ventilation fan assemblies, and the front-door air filter.
The power supplies and controller card are located behind the door on the front panel. The fan
assemblies are mounted on the rear of the frame.
Changing the Power Supply
The Densité 3+ FR4 frame supports dual redundant hot-swappable power supplies. The basic
configuration includes a single supply, plus an empty slot for the optional redundant power
supply. Installing a second power supply module and applying power to it automatically
engages the redundant supply mode. Each power supply has its own power socket on the rear
panel, and should be connected to the AC supply using the supplied power cord or other
approved cord.
• A single power supply can be installed in either of the two slots.
• Power integrity is enhanced if the two supplies are plugged into different circuits.