C
HAPTER
4
| Making Network Connections
Fiber Optic SFP Devices
– 48 –
1. Remove and keep the LC port’s rubber plug. When not connected to a fiber
cable, the rubber plug should be replaced to protect the optics.
2. Check that the fiber terminators are clean. You can clean the cable plugs by
wiping them gently with a clean tissue or cotton ball moistened with a little
ethanol. Dirty fiber terminators on fiber optic cables will impair the quality
of the light transmitted through the cable and lead to degraded performance
on the port.
3. Connect one end of the cable to the LC port on the switch and the other end
to the LC port on the other device. Since LC connectors are keyed, the cable
can be attached in only one orientation.
Figure 21: Making Fiber Port Connections
4. As a connection is made, check the Link LED on the switch corresponding to
the port to be sure that the connection is valid.
The 1000BASE-SX/LX/LH fiber optic ports operate at 1 Gbps full duplex. The
100BASE-FX fiber optic ports operate at 100 Mbps full duplex. The maximum
W
ARNING
:
This switch uses lasers to transmit signals over fiber optic
cable. The lasers are compliant with the requirements of a Class 1
Laser Product and are inherently eye safe in normal operation.
However, you should never look directly at a transmit port when it is
powered on.
W
ARNING
:
When selecting a fiber SFP device, considering safety, please
make sure that it can function at a temperature that is not less than the
recommended maximum operational temperature of the product. You
must also use an approved Laser Class 1 SFP transceiver.
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