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DES-3326 Layer 3 Fast Ethernet Switch User’s Guide
1000BASE-SX Fiber Module
Figure 3-6. 1000BASE-SX two-port module
♦ Front-panel module.
♦ Connects to 1000BASE-SX devices at full duplex.
♦ Allows connections using multi-mode fiber optic cable in the following configurations:
62.5µm 62.5µm 50µm 50µm
Modal bandwidth
(min. overfilled launch)
Unit: MHz*km
160 200 400 500
Operating distance
Unit: meters
220 275 500 550
Channel insertion loss
Unit: dB
2.33 2.53 3.25 3.43
1000BASE-LX Fiber Module
Figure 3-7. 1000BASE-LX two-port module
♦ Front-panel module.
♦ Connects to 1000BASE-LX devices at full duplex.
♦ Supports multi-mode fiber-optic cable connections of up to 550 meters or 5 km single-mode fiber-
optic cable connections.
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