8
Densité 3+ FR1 Housing Frame
Installing the Power Cord Retaining Clips
Installing the Power Cord Retaining Clips
Each power supply is provided with a power cord retaining clip that holds the power cord
in place to prevent inadvertent disconnections.
To install the retaining clips
1 With the power cord removed, install the clip into the plate
that extends out beneath the power cord socket on the rear
of the frame, by slipping the two ends of the clip into a pair
of holes in the plate
Several pairs of holes are provided to accommodate
different sizes of plugs. Use the holes that position the clip
closest to the body of the plug.
2 Position the clip vertically and insert the plug into the
socket.
3 Rotate the clip down and press the cord into the gripping
loop of the clip.
Ventilation
Ventilation for the frame is provided by two fans, one located at each end of the rear panel.
The fans draw air through the frame from the front and exhaust it to the rear. Ventilation
slots are provided in the front door of the frame to allow air to flow into the frame.
An air filter is installed in the front door behind the slots.
• Ensure that the front door ventilation slots are not obstructed.
• Check the air filter regularly to ensure that it is not plugged up with debris.
The filter may be cleaned by rinsing in warm water.
Dry it thoroughly
before replacing it in
the frame.
In addition to the main frame cooling fans, each installed power supply has its own fan that
pulls air into the front of the supply. This fan only operates when the frame temperature is
high.
Fan Speed Control
A slider switch beside the controller-side fan on the rear panel allows the speed of the two
rear-panel fans to be specified by the user. Two settings are provided:
• FULL - the fans operate at top speed at all times.
• VAR - the fan speed is managed by the controller card, which is monitoring the
temperature inside the frame.
Use a small tool (e.g. a pen tip or a small screwdriver) to change the switch setting.
GPI
Alarms generated on the controller card may be reported on the GPI connector on the rear
panel.
