Introduction to Cisco SFP Modules for Gigabit Ethernet

As it is known to all, Cisco is a top worldwide leader in telecommunication industry. Its products and services are excellent, which includes application networking services, optical networking, routers, switches, interfaces and modules, etc. This article will not introduce all Cisco products, only focus on Cisco SFP modules for Gigabit Ethernet.

Firstly, we should have a brief review about the term “Gigabit Ethernet”. In computer networking, Gigabit Ethernet, or marked as GbE or 1 GigE, is used to describe various technologies for transmitting Ethernet frames at a rate of a gigabit per second. It is defined by the IEEE 802.3-2008 standard. The standards for Gigabit Ethernet are as below.

Name Medium Specified distance
1000BASE-CX Shielded balanced copper cable 25 meters
1000BASE-KX Copper backplane 1 meter
1000BASE-SX Multi-mode fiber 220 to 550 meters dependent on fiber diameter and bandwidth
1000BASE-LX Multi-mode fiber 550 meters
1000BASE-LX Single-mode fiber 5 km
1000BASE-LX10 Single-mode fiber using 1,310 nm wavelength 10 km
1000BASE-EX Single-mode fiber at 1,310 nm wavelength ~ 40 km
1000BASE-ZX Single-mode fiber at 1,550 nm wavelength ~ 70 km
1000BASE-BX10 Single-mode fiber, over single-strand fiber: 1,490 nm downstream 1,310 nm upstream 10 km
1000BASE-T Twisted-pair cabling (Cat-5, Cat-5e, Cat-6, Cat-7) 100 meters
1000BASE-TX Twisted-pair cabling (Cat-6, Cat-7) 100 meters

After reviewing the Gigabit Ethernet standards, let us move on to Cisco SFP Modules for Gigabit Ethernet. According to Gigabit Ethernet standards, Cisco SFP modules for Gigabit Ethernet have many types, such as 1000BASE-T SFP, 1000BASE-SX SFP, 1000BASE-LX/LH, 1000BASE-EX, 1000BASE-ZX SFP etc. Below text will introduce the three most common types: Cisco 1000BASE-T SFP, Cisco 1000BASE-SX SFP and Cisco 1000BASE-LX/LH SFP.

Cisco 1000BASE LX/LH SFP transceiver module
Cisco 1000BASE-T SFP—Cisco GLC-T

The Cisco GLC-T is compliant with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE STD 802.3 and 802.3ab. Cisco GLC-T operates on standard Category 5 unshielded twisted-pair copper cabling of link lengths up to 100 m (328 ft). It supports RJ-45 connector. Moreover, Cisco GLC-T has low power dissipation (1.05 W typical). The operating temperature range of Cisco GLC-T is 0 to 70°C.

Cisco1000BASE-SX SFP—GLC-SX-MMD

The GLC-SX-MMD, compatible with the IEEE 802.3z 1000BASE-SX standard, operates on legacy 50 μm multi-mode fiber links up to 550 m and on 62.5 μm fiber distributed data interface (FDDI)-grade multi-mode fibers up to 220 m. It can support up to 1km over laser-optimized 50 μm multi-mode fiber cable. And GLC-SX-MMD could be connected with dual LC/PC connector. The average output power is -9.5~ -3dBm and receiver sensitivity is -17dBm. Its operating temperature range is -5 to 85°C.

Cisco1000BASE-LX/LH SFP—GLC-LH-SMD

The GLC-LH-SMD, compatible with the IEEE 802.3z 1000BASE-LX standard, operates on standard single-mode fiber-optic link spans of up to 10km and up to 550m on any multi-mode fibers. It is joint with dual LC/PC connector. And the transmit and receive wavelength ranges from 1270nm to 1355nm. The average output power of GLC-LH-SMD is -9.5~ -3dBm, too. However, the receiver sensitivity is -21dBm.

As stated above, Cisco GLC-T, GLC-SX-MMD and GLC-LH-SMD can be applied under Gigabit Ethernet and have their own features. If you are looking for all or one of them, Fiberstore is an excellent choice. Fiberstore provides fine Cisco GLC-T, GLC-SX-MMD, GLC-LH-SMD and many other SFP modules at very reasonable price.

Cisco GLC-T Compatible SFP Transceiver Module

Cisco GLC-T SFP is a mini GBIC transceiver work with Category 5 wiring for max 100 meters span. GLC-T SFP is compliant to 1000Base T standards for Gigabit Ethernet. Cisco GLC-T is hot-swappable so that when they are deployed, the equipment does not need reboot. FiberStore GLC-T SFP products are fully compatible with Cisco routers and switches, they provide full duplex Gigabit Ethernet links to high-end between wiring closets over existing copper network infrastructure.

Features

  • Up to 1.25Gb/s bi-directional data links
  • Hot-pluggable SFP footprint
  • Extended case temperature range (0°C to +85°C )
  • Fully metallic enclosure for low EMI
  • Low power dissipation (1.05 W typical)
  • Compact RJ-45 connector assembly
  • Access to physical layer IC via 2-wire serial bus
  • 1000 BASE-T operation in host systems with SERDES interface
  • 10/100/1000Mbps compliant in host systems with SGMII interface

Specifications

  • Manufacturer: FiberStore
  • Product Type: SFP transceiver module
  • Data Rate: 1Gbps
  • Wavelength: N/A
  • Transfer Distance: 100m
  • Connector Type: RJ45
  • Cable Type: Copper

OEM and ODM

FiberStore designs, develops, manufactures and markets a diverse portfolio of high-performance, cost- competitive fiber optic communication products for all applications. We are mainly engaged in providing complete sets of optoelectronic device solutions to gain more brand extensions and influence for FiberStore in the world.

OEM/ODM order is available

We can supply SFP-1GTX-1M-CO according to your requirements, and design SFP-1GTX-1M-CO label and packaging for your company. Welcome any inquiry for customized SFP+ optical transceiver. Our Cisco GLC-T price is very reasonable.

Order Procedure

Please contact us with any special requirements you may have, we can help you create a custom solution to meet almost any application. Our engineer will review the project and provide a quotation within 1-2 business days.

a. Email (sales@fiberstore.com) or Call (+86-75583003611) us a rough sketch to a detailed drawing.

b. Our engineer will review the project and provide a quotation within 24 hours.

c. We can arrange production as low as 1 piece and as high as 1,000 pieces in 1~4 business days once an order is placed.

FiberStore is an professional manufacturer & supplier of optical transceivers. All of our transceivers are tested in-house prior to shipping to guarantee that they will arrive in perfect physical and working condition. We guarantee transceivers to work in your system and all of our transceivers come with a lifetime advance replacement warranty.

Related Article: A Quick Overview of Cisco 1000BASE-T GLC-T SFP Copper Module