MRV Communications MR2228-S2C - Manual (Page 27)

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Figure 4-2. Network Wiring Connections
Fiber Optic SFP Devices
An optional Gigabit SFP transceiver (1000BASE-SX, 1000BASE-LX, or
1000BASE-LH) 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!: 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 atransmit port when it is powered on.
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