Instruction manual

1. Components Overview
39
1.8 Blank panel
When a slot does not contain an optional module, a blank panel is inserted in the
slot.
The blank panel serves the following purposes:
z Ensures the flow of air inside the Switch.
z Reduces radio interference from the Switch.
z Protects the Switch from radio interference by another device.
CAUTION
Insert a blank panel in a slot in which there is no optional module. If
you continue using the Switch without attaching a blank panel, the
airflow inside the Switch cannot be maintained. As a result, the
temperature inside the Switch will rise, possibly resulting in a failure.
In addition, the radio waves generated by the Switch might affect
another device, or the radio waves generated by another device might
affect the Switch, resulting in a malfunction.
(1) BPNL-PS11
The blank panel for a power supply unit.
Figure 1-42 BPNL-PS11
(2) BPNL-SU11
The blank panel for a control and switching unit.
Figure 1-43 BPNL-SU11