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07 Dec 2015

With the economics-driven growth of global regional and local fiber communication network over the past few decades, the IEEE 802.3 ba 40Gb/s Ethernet standard was published in June, 2010. In order to meet the data transmission needs in the market, a high-performance and flexible implementation of the IEEE 802.32012 for 40Gbps Ethernet - 40GBase optical transceivers are developed and widely used. The 40GBase optical networking equipment transfers data at a rate of 40 gigabits per second over Ethernet.

40GBase optical transceivers, compliant to the IEEE standards mainly include CFP and QSFP (quad small form-factor pluggable). Today, let’s mainly discuss on how to choose the 40G QSFP transceiver. As the 40-Gigabit QSFP transceivers are...



23 Nov 2015

1000Base-SX, also known as 1000Base-SX, is a physical layer specification for Gigabit Ethernet over fiber optic cabling as defined in IEEE 802.3z. SX stands for short wavelength. And 1000Base-SX uses short wavelength laser (850nm) over multimode fiber as opposed to 1000Base-LX, which uses long wavelength laser over both multimode and single-mode fiber. The maximum distance of (multimode) fiber, based on 1000Base SX is 550m.

What Is Gigabit Ethernet?

Gigabit Ethernet is defined by the IEEE 802.3z standard. This defines the gigabit Ethernet media access control (MAC) layer functionality as well as three different physical layers: 1000Base-LX and 1000Base-SX using fiber and 1000Base-CX using copper. These physical layers were...



18 Nov 2015

Plug-and-play is a technology that allows the operating system to detect and configure internal and external peripherals as well as most adapters. It has the ability to find and configure hardware components without having to reset DIP (dual in-line package) switches and jumpers. Plug-and-play transceivers refer to hot-swappable or hot-pluggable optical transceivers, such as SFP transceivers or XFP transceivers, which can be quickly plugged into an interface of fiber optical devices. Here are the reasons why plug-and-play transceivers play such an important role in data center communications.

Cisco SFP-10G-SR

Designed to Handle Mission Critical Applications

Plug-and-play transceivers are the basics of linking and transmitting data in mission...



09 Nov 2015

Pluggable fiber optic transceivers refer to hot-swappable or hot-pluggable optical transceivers which can be quickly plugged into an interface of fiber optical devices. An optical transceiver can best be described as a device that converts high-speed data from a cable source to an optical signal for communication over optical fiber. Optical transceivers are used to update the communications networks to manage broadband, to update the data center networks to make them manage traffic with higher speeds, and to implement the backbone network for mobile communications.

Pluggable fiber optic transceivers provide connectivity options for Ethernet over twisted pair copper and fiber optic cables with transition speeds from 100 Megabits per...



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...



30 Oct 2015

SFP transceiver is a compact and hot-pluggable transceiver that plugs into a special port on a switch or other network devices. Cisco SFP transceiver is one of the most popular SFP transceivers for Gigabit Ethernet applications. When choosing SFP transceivers for specific applications in Gigabit Ethernet, we are usually confused with the fiber optic interfaces of them. This article will introduce the family products and the fiber optic interfaces of Cisco SFP transceiver for Gigabit Ethernet applications.

Cisco 1000BASE-DWDM SFP

The Product Family of Cisco SFP Transceivers

The product family of Cisco SFP transceivers include the following types:

  • 1000BASE-T SFP for copper networks
  • 1000BASE-SX SFP for multimode fiber only
  • 21 Oct 2015

    1000BASE is a term describing various technologies for transmitting Ethernet frames at a rate of a 1,000,000,000 bits per second, as defined by the IEEE 802.3-2008 standard. 1000BASE SFP transceiver is a hot-swappable input/output device that plugs into a Gigabit Ethernet port/slot, linking the port with the fiber optic network. It can be intermixed in combinations of IEEE 802.3z- compliant 1000BASE-SX, 1000BASE-LX/LH (GLC-LH-SM or GLC-LH-SMD), or 1000BASE-ZX interfaces on a port-by-port basis. Here are the most common types of 1000BASE SFP transceiver modules.

    1000BASE-LX SFP Transceiver

    LX stands for long wavelength. 1000BASE-LX is a physical layer specification for Gigabit Ethernet over fiber optic cabling as defined in 802.3z....