Best seller of Cisco SFP transceivers

SFP transceiver is capable of supporting SONET, Gigabit Ethernet, Fibre Channel, and several other communications standards. In the near future, it is going to expand to SFP+ .Then, data rates of 10 Gbits/s will be possible, including 8 gigabit Fire Channel. SFP+ modules have some of their circuitry on the outside, as compared to Xenpak or XFP type modules which have everything inside. There is a great variety of SFP transceivers available each with different transmitter or receivers. This allows the user to configure and customize the transceiver to get the proper optical reach with either multi-mode fiber or single-node optic fiber type.

Here are four categories of optical SFP modules: SX, which is 850nm, LX, which is 1310 nm, ZX, which is 1550 nm and DWDM. They all have an interface of copper cable, which allows a host device to communicate via USTP (unshielded twisted-pair) network cable. CWDM and single-optic cables also exist, and they are 1310/1490 up upstream and downstream.

GLC-SX-MM Specifications
Product Number: GLC-SX-MM
Product Name: Cisco 1000Base-SX SFP
Form Factor: Plug-in module
Device Type: Transceiver module
Product Type: SFP
Data Rate: 1Gbps
Wavelength: 850nm
Data range: 550m
Connector Type: LC Duplex
Cable Type: Multi-Mode Fiber (MMF)

GLC-LH-SM Specifications
Product Number: GLC-LH-SM
Product Name: Cisco 1000Base-LX/LH SFP
Form Factor: Plug-in module
Device Type: Transceiver module
Product Type: SFP
Data Rate: 1Gbps
Wavelength: 1310nm
Data range: 10km
Connector Type: LC Duplex
Cable Type: Single-Mode Fiber (SMF)

GLC-ZX-SM Specifications
Product Number: GLC-ZX-SM
Product Name: Cisco 1000Base-ZX 70KM SFP
Form Factor: Plug-in module
Device Type: Transceiver module
Product Type: SFP
Data Rate: 1Gbps
Wavelength: 1550nm
Data range: 70km (43.5 miles)
Connector Type: LC Duplex
Cable Type: Single-Mode Fiber (SMF)

SFP-OC3-MM Specifications
Product Number: SFP OC3-MM
Product Name: Cisco OC3 MM SFP
Form Factor: Plug-in module
Device Type: Transceiver module
Product Type: SFP
Data Rate: 155Mbps
Wavelength: 1310nm
Data range: 2km (1.2 miles)
Connector Type: LC Duplex
Cable Type: Multi-Mode Fiber (MMF)
GLC-BX-U Specifications
Product Number: GLC-BX-U
Product Name: Cisco 1000Base-BX-U BiDi TX1310/RX1490nm 10km
Form Factor: Plug-in module
Device Type: Transceiver module
Product Type: SFP
Data Rate: 1.25Gbps
Wavelength: Tx1310nm/Rx1490nm
Data range: 10km (6.2 miles)
Connector Type: LC Simplex
Cable Type: Single-Mode Fiber (SMF)