2. Connect the one end of the DC power cord supplied to a DC power module, that will be activated when
the AC power is not working, and to a power source (-48VDC/5.2A). Please make sure that connection
polarity (positive and negative) is correct.
The DC power and AC power of the device will back up each other immediately when one of the power
sources fail. If both power sources fail, unplug the switch. When the power source has been restored, plug
the switch’s power back in.
8,519 The Power Modules all support a specific airflow direction. This air-flow direction must be the same
as the Fan Module installed. By default the airflow direction of the Power Module and Fan Module installed is
front-to-back.
(.73.7'&
Located on the rear panel of this switch there are three fan module ports.
The user can easily remove and insert fan modules into these ports.
8
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