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Standard
1000Base-SX
1000Base-LX
100Base-TX
10Base-T
For more information on 1000Base-SX and 1000Base-LX link characteristics, refer
to IEEE 802.3z, Section 38.
LEDs
Table 1-2 describes the light emitting diode (LED) indications on the AT-9108..
LED
Power
DIAG
Packet
Status
Table 1-1 Media Types and Distances
Media Type
50/125um Multimode Fiber
50/125um Multimode Fiber
62.5/125um Multimode Fiber
62.5/125um Multimode Fiber
50/125um Multimode Fiber
50/125um Multimode Fiber
62.5/125um Multimode Fiber
10u Single-mode Fiber
Category 5 UTP Cable (100 Mbps)
Category 3 UTP Cable (10 Mbps)
Table 1-2 AT-9108 LED
Color
Green
The switch is powered up.
Yellow
The switch is indicating a power, overheat, or fan failure.
Green
flashing:
Slow
Power On Self Test (POST) in progress.
The switch is operating normally.
Medium
Software download in progress.
Fast
Yellow
The switch has failed its POST.
Gigabit Ethernet Port Status LEDs
Yellow
Frames are being transmitted/received on this port.
Off
No activity on this port.
Green on
Link is present; port is enabled; full-duplex operation.
Green
Link is present; port is disabled.
flashing
Off
Link is not present.
AT-9108, AT-8518, AT-8525, and AT-8550 Installation Guide
Mhz/Km
Rating
400
500
160
200
400
500
500
Note
Indicates
Maximum Distance
500 m (1640 ft)
550 m (1804 ft)
220 m (722 ft)
275 m (902 ft)
550 m (1804 ft)
550 m (1804 ft)
550 m (1804 ft)
5,000 m (16,400 ft)
100 m (328 ft)
100 m (328 ft)
1-5
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