DES-1218R/DES-1226R 10/100/1000 Mbps Ethernet Switch User ’s Guide
10
Rear Panel
The rear panel contains the AC power connector. The AC power connector is a standard three-
pronged connector that supports the power cord. Plug-in the female connector of the provided power
cord into this socket, and the male side of the cord into a power outlet. Supported input voltages
range from 100 ~ 240 VAC at 50 ~ 60 Hz.
Figure 3-3. Rear panel view of the Switch.
Side Panels
The right-hand side panel of the Switch contains two system fans. The left-hand side panel contains
heat vents.
The system
fans are used to dissipate heat. The sides of the system also provide heat vents to serve
the same purpose. Do not block these openings, and leave at least 6 inches of space at the rear and
sides of the switch for proper ventilation. Be reminded that without proper heat dissipation and air
circulation, system components might overheat, which could lead to system failure.
Figure 3-4. Side Panels (the right-hand panel is pictured on top)
LED Indicators
♦
Power
The Power LED will will light green after the Switch is powered on to indicate the
ready state of the device.
♦
Link/Act
Located on the upper left corner of each twisted pair port, this LED indicates a
valid link (steady green) and will blink when data is being transmitted or received via that
port connection.
