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Description of Hardware
1-5
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Port and System Status LEDs
The MIL-SM4804G includes a display panel for key system and port indications that
simplify installation and network troubleshooting. The LEDs, which are located on
the front panel for easy viewing, are shown below and described in the following
tables.
Figure 1-3 Port LEDs
Table 1-1 Port Status LEDs
LED Condition Status
Fast Ethernet Ports
MIL-SM4804G: Ports 1-48
(Link/Activity) On/Flashing
Amber
Port has established a valid 10 Mbps network connection.
Flashing indicates activity.
On/Flashing
Green
Port has established a valid 100 Mbps network connection.
Flashing indicates activity.
Off There is no valid link on the port.
Flashing Green When the “light unit” command is entered in the Command Line
Interface, the LED corresponding to the switch’s ID will flash for
about 15 seconds.
Gigabit Ethernet Ports
MIL-SM4804G: Ports 49-50, and Ports 51-52 when stacking is not implemented
(Link/Activity) On/Flashing
Amber
Port has established a valid 10/100 Mbps network connection.
Flashing indicates activity.
On/Flashing
Green
Port has established a valid 1000 Mbps network connection.
Flashing indicates activity.
Off There is no valid link on the port.
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Port Status LEDs