Making Connections
33
modules are installed in hubs on the primary
master segment.
Fiber Optic Module (DFE-260FX)
The Fiber Optic module provides a standard Fast Ethernet 100BASE-FX
fiber optic connector. A fiber optic connection of this kind is particularly
useful for creating a link between two DFE-2600 series hub stacks, placing
them in separate collision domains. A link of this sort eliminates the need
for an external switch to divide stacks into separate domains. Dividing the
stacks into separate collision domains overcomes the Fast Ethernet two-
repeater limitation, and effectively doubles overall bandwidth.
The Fiber Optic module includes the following LED indicators:
•
Power/Tx—This LED is lit when the hub is on and blinks when pack-
ets are being transmitted by the module.
•
Link/Rx—This LED is lit when the fiber optic ports are properly con-
nected to a powered-on device and blinks when packets are being
received by the module.
•
Collision—This LED blinks when there are packet collisions on the
fiber optic link.
Summary of Contents for DFE-2600 Series
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