Air Filter; Cooling Fan Trays - Fortinet FortiGate FortiGate-5140 User Manual

FortiGate-5140 chassis

Air filter

Cooling fan trays

FortiGate-5140 Chassis Guide
01-30000-0396-20070201
The FortiGate-5140 chassis includes a front accessible air filter. This filter must be
in place for the FortiGate-5140 chassis to operate normally. If the air filter is not
locked into place this is detected by an air filter presence switch.
Air filters should be inspected regularly and cleaned if dirty or replaced if
damaged. If the filter becomes dirty, clean it with a vacuum or with compressed
air. The filter meets the requirements of the Telcordia Technologies Generic
Requirements GR-78-CORE specification.
The air filter can be removed by pulling the air filter handle on the front of the
FortiGate-5140 chassis. To install a new filter, push the air filter into the guide rails
at each side of the shelf until the filter locks into place.
The FortiGate-5140 chassis contains three interchangeable hot-swappable
cooling fan trays installed at the front bottom of the chassis.
You can remove any fan tray by lifting the front cable tray, pressing the hot swap
button on the tray front panel, fully loosening the mounting knots, and then pulling
the fan tray out using the extraction handle.
Each cooling fan tray contains two radial fans for cooling the modules installed in
the FortiGate-5140 chassis. Fan speeds are monitored by a tachometer signal
sent from the cooling fan trays to the shelf manager. The shelf manager regulates
the fan speed by adjusting the DC voltage supplied to the fan trays.
Figure 6: Cooling fan tray front panel
FA N T R AY
Hot swap
button
Hot swap
LED
Fan tray
alarm LED
Fan tray
OK LED
Air filter
13