D-Link DGS-1016D/DGS-1024D Unmanaged Gigabit Ethernet Switch
8
circuited), and the checking of connectivity for
each of the eight wires of a cable to ensure its
capability for running 1000Mpbs. Any of these
common cable faults will be detected by the Cable
Diagnostic function and the LEDs will display the
results of the Cable Diagnostic function as
follows:
Open, Short, or Improper Connectivity
−
Speed
LED: Amber
−
Link/Act
LED: Off
Cable connection good
−
Speed
LED: Green
−
Link/Act
LED: Off
The Cable Diagnostic function operates only during the
Switch boot up (when the Switch is first powered on).
The Cable Diagnostic first scans the 16 or 24 Ethernet ports
to determine if the Ethernet cable is in good working order.
This process is indicated by the
Speed
LED blinking green
for each of the 16 or 24 ports, sequentially. The initial port
scan takes about 3 seconds. If a cable fault is detected, it is
indicated by the corresponding port’s
Speed
LED glowing
amber for 5 seconds, after the initial port scan. The Switch is
then reset for normal operation. It takes about 2 seconds for
the Switch to reset. The entire Cable Diagnostic process
takes about 10 seconds from the time the Switch is booted.
So, from the time power is first applied to the Switch, about
10 seconds is required before the Switch will begin normal
operation.
Note: There is no display of cable faults detected by the
Cable Diagnostic function during the normal operation of the
Switch, only when the Switch is booted up or power-cycled.
NOTE:
The Cable Diagnostic function does not
support 10M/100M. If the port is connected to a
10M/100M device, see the Link LED to check if
the cable is good or not.