AT-3624TR/3648TR Installation Manual - Allied Telesis

AT-3624T Connectivity
Port Indicators
Port indicators on the AT-3600 Series hub front panels provide visual
diagnostic and activity information for network analysis. The AT-3624T
has one dual-color LED corresponding to each numbered port connection,
as shown in Figure 42. A central diagnostic key provides a ready reference
to the indicator meanings:
Port activity LEDs
1 2 3 4 5 6 7 8 9 10 11 12 10BASE-T
PORT ACTIVITY
INDICATOR STATUS – PORT STATUS
OFF ––––––––––––––– NO LINK
ON GREEN –––––––––– LINK
FLASHING GREEN –––– RECEIVING
ON AMBER ––––––––– PARTITIONED
FLASHING AMBER ––– COLLISION
10BASE-T PORTS 1-12
Figure 42: AT-3624T Port LEDs
LINK (Steady Green)—This indicates that the particular port has a valid
link and is not partitioned.
RECEIVING (Flashing Green)—When a port’s LED is blinking, the port
is receiving Ethernet packets.
PARTITIONED (Steady Amber)—A steady amber port indicator means
the port is partitioned or segmented from the rest of the ports. This
partitioning may be associated with a management function or with an
error condition on the link.
COLLISION (Flashing Amber)—A momentary amber flash occurs when
a collision is detected on the port.
NO LINK (No Light)—If the Link Test function is not met by the
10BASE-T device at the opposite end of the UTP segment, this LED will
not illuminate. This may occur if the workstation at the end of the
segment is turned off or if the UTP segment is disrupted or damaged.
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