Cisco SFP-GE-L= Hoja De Datos
Data Sheet
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Cisco SFP Optics for Gigabit Ethernet Applications
The industry-standard Cisco
®
Small Form-Factor Pluggable (SFP) Gigabit Interface
Converter is a hot-swappable input/output device that plugs into a Gigabit Ethernet port or
slot, linking the port with the network (Figure 1). SFPs can be used and interchanged on a
wide variety of Cisco products and can be intermixed in combinations of 1000BASE-SX,
1000BASE-LX/LH, 1000BASE-ZX, or 1000BASE-BX10-D/U on a port-by-port basis.
Figure 1. Gigabit Ethernet SFP
1000BASE-SX SFP for Multimode Fiber Only
The 1000BASE-SX SFP, compatible with the IEEE 802.3z 1000BASE-SX standard, operates on
50
µ
m multimode fiber links up to 550 m and on 62.5
µ
m Fiber Distributed Data Interface (FDDI)-
grade multimode fibers up to 220 m.
1000BASE-LX/LH SFP for Both Multimode and Single-Mode Fibers
The 100BASE-LX/LH SFP, compatible with the IEEE 802.3z 1000BASE-LX standard, operates on
standard single-mode fiber-optic link spans of up to 10 km and up to 550 m on any multimode
fibers.
1000BASE-ZX SFP for Long-Reach Single-Mode Fibers
The 1000BASE-ZX SFP operates on standard single-mode fiber-optic link spans of up to
approximately 70 km in length. The SFP provides an optical link budget of 23 dB, but the precise
link span length depends on multiple factors such as fiber quality, number of splices, and
connectors.
When shorter distances of single-mode fiber (SMF) are used, it might be necessary to insert an
inline optical attenuator in the link to avoid overloading the receiver. A 10-dB inline optical
attenuator should be inserted between the fiber-optic cable plant and the receiving port on the SFP
at each end of the link whenever the fiber-optic cable span loss is less than 8 dB.
1000BASE-BX10-D and 1000BASE-BX10-U SFP for Single-Fiber Bidirectional Applications
The 1000BASE-BX-D and 1000BASE-BX-U SFPs, compatible with the IEEE 802.3ah 1000BASE-
BX10-D and 1000BASE-BX10-U standards, operate on a single strand of standard SMF.