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| Legend
System LEDs
LED | Description
SYSTEM | The System LED shows the status of the switch (system).
|  | Off (dark) | Switch is not powered on.
| Solid green | Switch is healthy.
| Solid amber | Switch is faulty.
! | The ! LED shows if a system fault exists.
|  | Off (dark) | No system fault exists.
| Solid amber | A system fault exists.
OK | The ! LED shows if a system fault exists.
|  | Blinking green | Link is present between the switch and chassis.
Back to Top Port States
LED Mode | Description
Status | In this mode, the port LEDs show port status, port duplex mode, and port speed. By default, the port LEDs show port status. To display the port duplex mode and the port speed from the port LEDs, you must use the View list from the device manager or the Mode button on the physical switch.
|  | Off (dark) | No link.
| Solid green | Link is up, but there is no activity on the link.
| Solid brown | Port is administratively disabled.
| Yellow | Port is error disabled.
| Blinking green and amber | Link is faulty.
| Solid amber | Port is faulty, is disabled due to an error condition, or is in an STP-blocked state.
Duplex | In this mode, the port LEDs show the duplex mode (full duplex or half duplex) of the ports. Note: The 10/100/1000 ports operate only in full-duplex mode.
|  | Off (dark) | No link.
| Solid light blue | Port is in half-duplex mode.
| Solid green | Port is in full-duplex mode.
Speed | In this mode, the port LEDs show the operating speed (10, 100, or 1000 Mb/s or 10 Gb/s) of the ports.
|  | Off (dark) | No link.
| Solid light blue | 10 Mb/s.
| Solid green | 100 Mb/s.
| Blinking green | 1000 Mb/s.
Back to Top Port Types
| RJ-45 port
| Internal port
| Small form-factor pluggable (SFP) module slot (empty)
| Fiber-optic SFP module ports
| 1000BASE-T SFP module port
Back to Top Color-Wavelength Representation in CWDM Module Ports Note The circles in the icon for a coarse wavelength-division multiplexer (CWDM) module port can be any of the eight colors, each denoting a different wavelength. This table shows the wavelength that is denoted by each color. To see the wavelength of a CWDM module port, point to its icon.
Color | Wave Length
| Gray | 1470 nm
| Violet | 1490 nm
| Blue | 1510 nm
| Green | 1530 nm
| Yellow | 1550 nm
| Orange | 1570 nm
| Red | 1590 nm
| Brown | 1610 nm
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