Tag Archives: 1000BASE-SX SFP

Why Choose Third Party SFP Modules?

One concern you may frequently hear about is the issue of using third-party SFP optical transceivers. You know that many brand companies tend to be very strict about their warranty requirements, and they make no effort to hide their preference that you buy all components directly from them. You will ask: can I choose a 3rd party SFP module? Is it reliable? The answer to the question is that it’s possible. This post will provide you with an explanation on why you can choose 3rd party SFP modules.

Opinions on 3rd Party SFP Modules

People have different opinions on “Whether I should use 3rd party SFP modules”. It seems a difficult question for them as the attractive price but unknown performance of the 3rd party SFPs. Some people are worried about whether the 3rd party SFP module can be compatible with their devices. And there is a reason for that. Other people may think that a 3rd party SFP module can perform well and do exactly what an OEM SFP module can do, so why not choose it? And using 3rd party SFP modules seems to more and more popular now, for many 3rd party SFP module vendors are providing high quality and reliable 3rd party SFP modules with low prices. The image below shows a NETGEAR AGM732F compatible 1000BASE-LX SFP module.

NETGEAR AGM732F Compatible 1000BASE-LX SFP

Are Third-Party Compatible SFP Modules Safe?

Most “third party” transceivers are made and assembled in exactly the same plants assembling officially-branded transceivers. There’s a very small number of devices in this world with the specialty equipment needed to produce fiber optic hardware. As such, they supply pretty much everyone. There is almost no big difference between an official Cisco transceiver and a third-party plug, aside from the branding and about two hundred to a few thousand bucks. We have barely seen an actual case of a Cisco switch being damaged by a third-party transceiver. In fact, the failure rates on a good quality third-party SFP transceiver is very low. It is a very basic technology. If you want to make sure that a 3rd party SFP module can work safely with your devices, it is very necessary to use quality assurance SFP modules. Then you would not worry about compatibility of the usage. All the products are tested and 100% compatible with the major brands.

Benefits of 3rd Party SFP Modules

In general, the cost of an original brand SFP module is more expensive than a 3rd party one. Take Cisco 1000BASE-SX SFP (GLC-SX-MM) for example, you can easily find a 3rd party SFP module that can take a discount at up to 80% off than an OEM one. As the cost of SFP modules keep adding up over time, many labs and companies are seeking for SFP alternatives to help cut down the costs on these expensive modules. Besides, third-party SFPs can be as reliable as official OEM products. If you buy a Cisco-compatible SFP transceiver from a reputable vendor who’s backing it by warranty, you have nothing to fear. You’re getting a transceiver that’s every bit as good as the official version, for a vastly reduced cost.


Various vendor-coded SFP, SFP+, GBIC, or XFP transceiver modules that are compatible to widespread networking equipment from well-known manufacturers. Fiberstore provides a variety of transceiver modules that are compatible to devices of important vendors in the market. For example, HP JD089B Compatible 1000BASE-T SFP, NETGEAR AGM732F compatible 1000BASE-LX SFP and Allied Telesis AT-SPSX compatible 1000BASE-SX SFP, from production to shipmet, all these products are tested and guaranteed 100% compatible and with high qulity.

What Is 10G DWDM C-band Tunable XFP Module?

WDM (wavelength division multiplexing) technology, based on the concept of using multiple wavelengths of light on a single fiber, has been very popular in today’s data transmission. Dense WDM (DWDM) is one type of WDM which uses the C-Band transmission window with denser channel spacing. In a 10G DWDM network application, there are multiple transceiver choices for you. Among them, this article will introduce one option for you, DWDM C-band tunable XFP module.


The tunable DWDM transceiver is a unique product which enables you to set the channel or “color” that the laser emits. This type of transceiver has been around for a number of years but it was not until 2008 that the first tunable optics were available in the pluggable XFP form factor. Tunable transceivers are only available in DWDM form because the CWDM grid is too wide. Typically these tunable optics are for the C-Band 50GHz. Around 88 different channels can be set with intervals of 0.4nm, which is the 50GHz band. Tunable transceivers are typically used as “spare-optics”, in case of emergency, because you can tune them to the right channel and reduce the amount of spare optics you need to hold in stock.

DWDM tunable XFP 10 Gbps multiprotocol optical transceiver is an integrated fiber optic transceiver that provides a high-speed serial link of signaling rates. The module complies with the 10 Gigabit small form factor pluggable (XFP) multi-source agreement (MSA), and the ITU-T G.698.1 S-D100S1-2D standard. It features a hot-pluggable XFI-compliant electrical interface. DWDM tunable XFP transceiver integrates the receive and transmit path on one module. On the transmit side, the 10 Gbps serial data stream is recovered, retimed, and passed to a modulator driver. The modulator driver biases and modulates a C-band-tunable integrated laser, enabling data transmission over single-mode fiber through an industry-standard LC connector. On the receive side, the 10 Gbps optical data stream is recovered from an APD/transimpedance amplifier, retimed, and passed to an output driver. DWDM tunable XFP transceiver is designed to support full range of C-band ITU-T wavelength data rates from 9.95Gbps to 11.3Gbps and distances up to 80km. The image below shows a Cisco ONS-XC-10G-C compatible 10G DWDM tunable XFP transceiver.

Cisco ONS-XC-10G-C Compatible 10G DWDM C-band Tunable XFP 50GHz 80km DOM Transceiver

Features of DWDM C-band Tunable XFP
  • XFI electrical interface compliant
  • Hot-pluggable XFP footprint
  • 80km MZM tunable TOSA
  • RoHS6 compliant
  • Client side and line side loopback functions
  • XFP MSA compliant form factor connector
  • Supports 50GHz ITU-based channel spacing (C-Band)
  • With wavelength locker function, wavelength precision about 0.02nm
Applications of DWDM C-band Tunable XFP

DWDM tunable XFP pluggable module allows enterprise companies and service providers to provide scalable and easy-to-deploy 10 Gigabit LAN, WAN, and Optical Transport Network (OTN) services in their networks. This module is a high performance and cost effective XFP transceiver module designed for 10G SDH/SONET, IEEE DWDM 10GBASE-ZR for 40 or 80 km reach (Ethernet), and DWDM 10G FC (Fibre Channel) for 40 or 80 km reach applications. It’s also good for switching wavelength and details can be found in this article Wavelength Switching Solution: Tunable XFP Transceiver.


Fiberstore offers a variety of optical modules for extensive applications like telecommunication, datacommunication, and CWDM/DWDM network. Fiberstore’s DWDM C-band tunable XFP transceivers can be designed to be compatible with many major brands while delivering the deployment flexibility and inventory control. And Fiberstore provides a variety of industry standard from factors including SFP+, X2, XFP, SFP, like Avago AFBR-709SMZ compatible 10GBASE-SR/SW SFP+ and Allied Telesis AT-SPSX compatible 1000BASE-SX SFP transceivers, which can make the customers satisfied with the broad choices and high performance.