D-Link DES-5220TF Product Manual - Page 41

Port 100BASE-FX Module

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Fast Ethernet Switching System User's Guide 2-Port 100BASE-FX Module Link Transmitting Receiving Collision Figure 17: 2-Port 100BASE-FX Module The LEDs on the 2-Port 100BASE-FX Module, displayed in Figure 17, are different from the LEDs on the modules. The information given is the same but it is presented differently. Refer to Table 10: FX Module LED. Lk Lk indicates there is a link. The Lk LED lights to indicate there is a link at the port. Dx Dx means duplex mode. The Dx LED indicates the port's duplex mode. The ports will not auto negotiate the duplex mode. The default value is half duplex. They can be manually set for full duplex. The LED is lit when the port is in full duplex and dark when the port is in half duplex. Tx Tx means transmitting. The Tx LED lights to indicate the port is transmitting data. Rx Rx means receiving. The Rx LED flashes when the port is receiving data. Col Col means collision. The Col LED lights amber when collisions occur at the port. Collisions are normal on the network. You should only be concerned when a high number of collisions happen at the port. LEDs 34

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Fast Ethernet Switching System User’s Guide
LEDs
34
2-Port 100BASE-FX Module
Figure 17: 2-Port 100BASE-FX Module
The LEDs on the 2-Port 100BASE-FX Module, displayed in Figure 17, are
different from the LEDs on the modules. The information given is the same but it
is presented differently. Refer to Table 10: FX Module LED.
Lk
Lk indicates there is a link. The Lk LED lights to indicate there is a link at the
port.
Dx
Dx means duplex mode. The Dx LED indicates the port’s duplex mode. The ports
will not auto negotiate the duplex mode. The default value is half duplex. They
can be manually set for full duplex. The LED is lit when the port is in full duplex
and dark when the port is in half duplex.
Tx
Tx means transmitting. The Tx LED lights to indicate the port is transmitting data.
Rx
Rx means receiving. The Rx LED flashes when the port is receiving data.
Col
Col means collision. The Col LED lights amber when collisions occur at the port.
Collisions are normal on the network. You should only be concerned when a high
number of collisions happen at the port.
Link
Transmitting
Receiving
Collision