LevelOne GSW-2476 Benutzerhandbuch

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An optional Gigabit SFP transceiver (1000BASE-SX, 1000BASE-LX or 
1000BASE-ZX) can be used for a backbone connection between switches, 
or for connecting to a high-speed server.

Each single-mode fiber port requires 9/125 micron single-mode fiber 
optic cable with an LC connector at both ends. Each multimode fiber optic 
port requires 50/125 or 62.5/125 micron multimode fiber optic cabling 
with an LC connector at both ends.

Warning: the switch use 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.

Note: 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.

1. Remove and keep the LC port’s rubber cover. When not connected to 

a fiber cable, the rubber cover 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 cables 
will impair the quality of the light transmitted through the cable and 
lead to degraded performance on the port.