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DCS-3950 series Ethernet switch manual
Fig 1-13 DCS-3950-26C/28CT/28C switch LED indicator lamp
Description of LEDs
LED Sstate Description
Link/ACT Blink The port is successfully linked and is sending
/receiving data right now.
Off The state of the port is down.
On Link succeeds
1000M indicator
lamp
On The corresponding G port is in 1000M
connecting mode.
Off The corresponding G port is in 100M connecting
mode or in down state.
Power On Power on
Off Power off
DIAG Green,blink The program is initializing.
On The program has been initialized successfully.
yellow,blink The initialization of the program has failed.
Table1-2 Description of LEDs in DCS-3950-26C/28CT/28C Switch
DCS-3950-52CT/52C switch does not have the 1000M LED. The Link/ACT LED of its
100M port is above the corresponding port, while the Link/ACT LED of its 1000M port is on
the right of the corresponding port.