Grass Valley KDD-PSU - Manual (Page 27)

KDD-PSU Power Supply Unit
6.2 Mounting the Power Supply Unit
6.2.1 General Rack Mounting Instructions
• The maximum ambient temperature for this unit is 40°C (104°F).
• Installing the unit in a closed or multi-unit rack assembly, together with other units
could increase the maximum ambient for this unit.
• If the unit is installed in a rack, no ventilation openings should be blocked or
otherwise covered. Ensure a sufficient amount of airflow. Airflow through KayakDD
(front view) is from the left side of the frame to the right side of the frame.
• Mounting of the unit in the rack should be such that a hazardous condition is not
achieved due to uneven mechanical loading.
• When connecting the unit to the supply circuit be sure that the supply circuit of the
rack is not overloaded. For ratings see chapter Technical Specifications.
• The unit must be grounded to a good earth ground using a wire as specified by the
local electrical code. This wire is attached to the protective earth connector on the
rear.
• When connecting the unit in a closed or multi-unit rack assembly together with
other units be sure that the summation of the touch (leakage) currents for each
power supply circuit is not higher than 3.5 mA . In this case the rack must be
permanently connected with an earth terminal. Earth connection is essential before
connecting supply voltage! For details see chapter Technical Specifications.
The Power Supply Unit frame has to be mounted in a rack using the delivered
accessories and screws.
Instruction Manual 27