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.

Introduction

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 tuneable 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 C-band tunable XFP 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.

Conclusion

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.

SFP Transceivers for Gigabit Ethernet Applications

SFP, small form-factor pluggable, a hot-swappable input/output device plugs into a Gigabit Ethernet port or slot. It is a popular industry format jointly developed and supported by many network component vendors. SFP transceivers have a wide variety of transmitter and receiver types, which allows users to select the appropriate transceiver for their link needs. Several different categories of SFP modules will be introduced in this article.

1000BASE-SX SFP for Multimode Fibers

The 1000BASE-SX SFP, compatible with the IEEE 802.3z 1000BASE-SX standard and SFP Multi-Source Agreement (MSA) standards, is a cost effective transceiver module with a wavelength of 850nm which supports data rates of up to 1.25 Gbps. It operates on 50/125μm multimode fiber links up to 550m and on 62.5/125μm multimode fiber links up to 300m. It also can support up to 1km over laser-optimized 50μm multimode fiber cable. Its electrical interface is compliant with SFF-8431. And it supports Digital Diagnostic Monitoring (DDM). The following is a picture of TRENDnet TEG-MGBSX compatible 1000BASE-SX SFP transceiver.

1000BASE-LX/LH SFP for Both Multimode and Singlemode Fibers

The 1000BASE-LX/LH SFP, compatible with the IEEE 802.3z 1000BASE-LX standard, is similar with the other SFP transceivers in basic working principle and size. 1000BASE-LX/LH SFP can be used for both single-mode and multi-mode. It is single-mode by design, but when it gets together with its friend "mode conditioning patch cable", it can also be used for multi-mode application. It operates on standard singlemode fiber optic link spans of up to 10km and up to 550m on multimode fibers. 1000BASE-LX/LH SFP transceiver is a high performance 1310nm transceiver for singlemode fibers. It supports dual data-rate of 1.25 Gbps/1.0625 Gbps. 1000BASE-LX/LH SFP transceiver is commonly applied for Gigabit Ethernet links, Fiber Channel Switch Infrastructure and other optical transmission systems. The following picture shows a Cisco SFP-GE-L compatible 1000BASE-LX/LH SFP transceiver module.

1000BASE-EX SFP for Long-Reach Singlemode Fibers

The 1000BASE-EX SFP operates on standard single-mode fiber-optic link spans of up to 40 km in length. An inline optical attenuator should be inserted between the fiber optic cable and the receiving port on the SFP at each end of the link for back-to-back connectivity.

1000BASE-ZX SFP for Long-Reach Single-Mode Fibers

1000BASE-ZX SFP supports link length of up to 80km on single mode fiber at 1Gbps. The precise link span length depends on multiple factors such as fiber quality, number of splices, and connectors. This optic works at 1550nm wavelength and uses an LC connector.

1000BASE-T SFP for Copper Networks

1000Base-T is an extension of standard Ethernet technologies to gigabit-level network speeds. 1000BASE-T SFP operates on four pairs of the commonly installed category 5 unshielded twisted pair (UTP) cable or enhanced category 5 cabling version of UTP cabling of link lengths up to 100m. The following picture shows an HP JD089B compatible 1000BASE-T SFP transceiver.

Summary

SFP transceivers are designed to support SONET, gigabit Ethernet, Fibre Channel, and other communications standards. Each optical interface operates and is managed like a fixed port but gives the customer flexibility to hot-swap or interchange to different optical module types. There is a number of 1000 BASE SFP optics from Fiberstore that are available depending on the customer application and distance capability required. Each optical interface operates and is managed like a fixed port but gives the customer flexibility to hotswap or interchange to different optical module types. Fiberstore optics are thoroughly tested and are subject to an extensive qualification process.

The Basics of HP SFP Transceivers

SFP, small form-factor pluggable, is a specification for a new generation of optical modular transceivers. It is a compact, hot-pluggable transceiver used for both telecommunication and data communications applications. SFP is a popular industry format jointly developed and supported by many network component vendors. HP, as a leading provider of optical network equipment, provides various SFP transceiver choices for your Gigabit Ethernet applications. This article gives you some fundamental information about HP 1000BASE SFP transceivers.

HP SFP

HP SFP is a Multi-Source Agreement (MSA) standard for high speed application. The devices are designed for use with small form factor (SFF) connectors, and offer high speed and physical compactness. HP SFP transceivers are electrically hot-pluggable, which enables them to be easily interchanged, so electro-optical or fiber optic networks can be upgraded and maintained more conveniently than has been the case with traditional soldered-in modules. Rather than replacing an entire circuit board containing several soldered-in modules, a single module can be removed and replaced for repair or upgrading. This can result in a substantial cost savings, both in maintenance and in upgrading efforts. All HP SFP transceivers are well tested on HP switch to ensure optimal signal integrity and the best end-to-end performance.

Types of HP SFP Transceivers

There is a number of HP 1000BASE SFP optics that are available depending on the customer application and distance capability required. Each optical interface operates and is managed like a fixed port but gives the customer flexibility to hotswap or interchange to different optical module types. In this part, two different kinds of HP SFP transceivers will be introduced.

HP 1000BASE-LX SFP: HP 1000BASE-LX SFP transceiver, like HP J4859C, is specified to work over a distance of up to 10km over single mode fiber and it can also run over all common types of multi mode fiber with a maximum segment length of 550m. For link distances greater than 300m, you must install a mode-conditioning patch cord between the transceiver and the MMF cable on both ends of the link. HP J4859C SFP transceiver, as shown below, provides a full-duplex gigabit solution up to 10 km (singlemode) or 550 m (multimode).

HP 1000BASE-SX SFP: HP 1000BASE-SX SFP transceiver, like HP JD118B, is compatible with the IEEE 802.3z standard and operates multi-mode fibers link up to 550 m. HP 1000BASE-SX SFP transceiver module consists of three sections: a VCSEL laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. It is often applied for Fibre Channel links, Gigabit Ethernet links, Fast Ethernet links, etc. HP JD118B SFP transceiver, as shown below, is a cost effective transceiver module with a wavelength of 850 nm which supports data rates of up to 1.25 Gbps.

Applications of HP SFP

HP SFP Transceivers are designed to support SONET, gigabit Ethernet, Fibre Channel, and other communications standards. Storage interface cards, also called HBAs or Fibre Channel storage switches, also make use of these modules, supporting different speeds such as 2Gb, 4Gb, and 8Gb. Because of their low cost, low profile, and ability to provide a connection to different types of optical fiber, SFP provides such equipment with enhanced flexibility.

Conclusion

Fiberstore is a professional manufacturer and supplier for optical fiber products and provides various kinds of SFP transceivers. We offers a large amount of compatible SFP transceivers branded by many famous companies, like Cisco, HP, Juniper, and Brocade. All these fiber transceivers are 100% compatible with major brands like Cisco, HP, Juniper, Nortel, Force10, D-link, 3Com, etc. Moreover, these 1000BASE SFP transceivers are with high quality and backed by a lifetime warranty.