Types and Features of SFP Transceiver

Types and Features of SFP Transceiver

SFP is a hot-pluggable transceiver used for both telecommunication and data communications applications. Its basic function is to interface a network device motherboard to a fiber optic or copper networking cable. SFP transceivers are designed to support Fiber Channel, gigabit Ethernet, and other communications standards. SFPs are smaller in size as compared to gigabit interface converter (GBIC); the SFP is also known as a Mini-GBIC.

Cisco SFP-10G-SR

Types of SFPs:

SFP transceivers are available in a variety of transmitter and receiver types, allowing users to select the suitable SFP transceiver for their needs. Optical SFP transceivers are commonly available in several different categories:

Multi-mode fiber

  • SX – 850 nm used for multi-mode fiber, for distance up to 550 m at 1.25 Gbit/s

Single-mode fiber

  • EZX – 1550 nm, for distances up to 160 km
  • ZX – 1550 nm, for distances up to 80 km
  • EX – 1310 nm, for distances up to 40 km
  • LX – 1310 nm, for distances up to 10 km
  • CWDM and DWDM transceivers offer various wavelengths achieving maximum distances

SFP transceivers are used in network switches, firewalls, routers, and network interface cards. SFPs are also used in storage interface cards or Fiber Channel storage switches, supporting different speeds such as 2Gb, 4Gb, and 8Gb.

Cisco is the leading brand producing industry-standard Small Form-Factor Pluggable (SFP) Gigabit Interface Converter for connecting your switches and routers to the network. The hot-swappable SFP is plugged into a Gigabit Ethernet port or slot. Copper and optical models can be used on a wide variety of Cisco products and intermixed in combinations of 1000BASE-BX10-D/U, 1000BASE-ZX, 1000BASE-EX, 1000BASE-LX/LH, 1000BASE-SX, or 1000BASE-T on a port-by-port basis.

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