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04 Nov 2015

1000BASE-LX/LH Optical Interface Specifications

The 1000BASE-LX, 1000BASE-LH and 1000BASE-LX/LH all refer to Gigabit Ethernet transmission. Among them, the 1000BASE-LX is a standard specified in IEEE 802.3 Clause 38 which uses a long wavelength laser, while the 1000BASE-LH and 1000BASE-LX/LH are just terms widely used by many vendors. Long Haul (LH) denotes longer distances while Long Wavelength (LX) denotes less energy which is obviously shorter distance. The 1000BASE-LX/LH SFP modules compatible with the IEEE 802.3z 1000BASE-LX standard can achieve a distance up to 10km over single mode fiber. Unlike 1000BASE-LX/LH SFP modules, 1000BASE-LH SFP modules operate at a distance up to 70km over single mode fiber. Besides 1000BASE-LX, other long haul transmission standards include 1000BASE-LX10, 1000BASE-EX  and 1000BASE-ZX.

Features of 1000BASE-LX/LH SFP Modules

  • Compliant with SFP MSA standard
  • Compliant with IEEE 802.3z
  • +3.3V single power supply and TTL Logic Interface
  • 10km with 9/125 µm SMF
  • 1310nm FP laser and PIN photodetector for 10km transmission
  • Hot-pluggable SFP footprint duplex LC connector Interface
  • Class 1 FDA and IEC60825-1 Laser Safety Compliant
  • Duplex LC connector
  • Compliant with SFF-8472
  • ROHS compliant
  • Average Output Power:-9~ -3dBm
  • Receiver Sensitivity:-21dBm

Applications of 1000BASE-LX/LH SFP Modules

Fiberstore compatible 1000Base-LX/LH SFP modules are high performance, cost effective modules supporting dual data-rate of 1.25Gbps/1.0625Gbps. They are designed to meet Gigabit Ethernet (1000Base) application. For example, Cisco SFP-GE-L compatible 1000BASE-LX/LH SFP transceiver provided by Fiberstore can be applied in Gigabit Ethernet and fiber channel switch infrastructure. The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. The Cisco 1000BASE-LX/LH SFP module is  made for both single-mode (long distance) fiber and multi-mode (short distance) fiber. It is compatible with the IEEE 802.3z 1000BASE-LX standard and operates on standard single-mode fiber-optic link spans of up to 10 km and up to 550 m on multimode fibers. When used over legacy multimode fiber type, the transmitter should be coupled through a mode conditioning patch cable.

Cisco SFP-GE-L

Compatible Fiber Optic Transceiver List

Brand Model Description
Brocade E1MG-LX-OM 1000BASE-LX SFP SMF 1310nm 10km LC DDM
Cisco GLC-LH-SM 1000BASE-LX/LH SFP SMF 1310nm 10km LC
Cisco GLC-LH-SMD 1000BASE-LX/LH SFP SMF 1310nm 10km LC EXT DDM
Dell 320-2879 1000BASE-LX SFP SMF 1310nm 10km LC DDM
Extreme Extreme 10052 1000BASE-LX SFP SMF 1310nm 10km LC DDM
Finisar FTLF1318P2BTL 1000BASE-LX/LH SFP SMF 1310nm 10km LC DDM IND
HP JD119B 1000BASE-LX SFP SMF 1310nm 10km LC DDM
HP J4859B 1000BASE-LX SFP SMF 1310nm 10km LC DDM
Juniper EX-SFP-1GE-LX 1000BASE-LX SFP SMF 1310nm 10km LC DDM
Juniper JX-SFP-1GE-LX 1000BASE-LX SFP SMF 1310nm 10km LC DDM
Netgear AGM732F 1000BASE-LX SFP SMF 1310nm 10km LC DDM

Fiberstore offers a wide range of 1000BASE-LX/LH SFP transceiver modules which are compatible with major brands, like Cisco, Juniper, Dell, Finisar, Brocade, or Netgear (AGM732F) in 10/20 Km options. Fiberstore’s optical transceivers are able to fulfill enterprises, service providers, telecom operators and SAN providers to build and fulfill their existing and future network expansions. Besides the compatible 1000Base-LX/LH SFP modules, we also provide the 1000BASE-EX (like Cisco GLC-EX-SMD), 1000BASE-SX (like Cisco GLC-ZX-SM), 1000BASE-BX (like Cisco GLC-BX-D) and so on.



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