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SFP Transceiver Ports
SFP Transceivers
LEDs
The AT-x220-28GS Switch has twenty eight SFP transceiver ports. The
AT-x220-52GT and AT-x220-52GP Switches have four ports.
The transceiver ports support 100Mbps and 1Gbps SX/LX SFP
transceivers
100Mbps or 1000Base single-mode or multi-mode fiber optic
transceivers
100Mbps or 1000Mbps bi-directional (BiDi) fiber optic transceivers
1000Base-TX transceivers with RJ-45 connectors for twisted pair
cable
SFP transceivers are purchased separately. For a list of supported
transceivers, refer to the product data sheet on the Allied Telesis web site.
Each transceiver port has one LED. Refer to Figure 6.
LED for Top
SPF Port
Figure 6. SFP Transceiver Ports LEDs
The LED states are described in Table 5.
Table 5. LEDS for the SFP Transceiver Ports
State
Solid green
Flashing green
Solid amber
Flashing amber
LED for Bottom
SPF Port
Description
The port has established a 1Gbps link to a
network device.
The port is transmitting or receiving
packets at 1Gbps.
The port has established a 100Mbps link
to a network device.
The port is transmitting or receiving
packets at 100Mbps.
x220 Series Installation Guide
29
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