D-Link DES-1228/ME User Manual - Front-Panel Description
DES-1228/ME Layer 2 Fast Ethernet Managed Switch
4
Blinking Green
When there is reception or
transmission (i.e. Activity--
Act) of data occurring at a
1000Mbps connected port.
Solid Amber
When there is a secure
100Mbps connection (or link)
at any of the ports.
Blinking Amber
When there is reception or
transmission (i.e. Activity—
Act) of data occurring at the
ports.
Light off
No link
Front-Panel Description
DES-1228/ME
• Twenty-four 10/100Mbps BASE-T ports
• Two Combo 1000BASE-T/SFP ports located to the right
• Two 1000BASE-T ports located to the right
• One female DCE RS-232 DB-9 console port
• LEDs for Power, Console, Link/Act/Speed for each port
Figure 1- 2. Front Panel of the DES-1228/ME
Rear Panel Description
• The rear panel of the Switch contains an 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. The Switch automatically adjusts its power setting to any supply voltage in the
range from 100 ~ 240 VAC at 50 ~ 60 Hz.
Figure 1- 3. Rear panel view of the DES-1228/ME
Side Panel Description
The left and right-hand panel of the DES-1228/ME Switch contains heat vents. The heat vents are used to dissipate heat. 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.