Tag Archives: CWDM SFP

Full CWDM Mux Demux and CWDM SFP Transceivers Solutions

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CWDM systems have channels at wavelengths spaced 20 nanometers (nm) apart, compared with 0.4 nm spacing for DWDM. This allows the use of low-cost, uncooled lasers for CWDM. In a typical CWDM system, laser emissions occur on full eighteen channels at eighteen defined wavelengths: 1610 nm, 1590 nm, 1570 nm, 1550 nm, 1530 nm, 1510 nm, 1490 nm, 1470 nm, 1450 nm, 1430 nm, 1410 nm, 1390 nm, 1370 nm, 1350 nm, 1330 nm, 1310 nm, 1290 nm, 1270 nm. Besides, for CWDM systems an industry standard color coding scheme is used. The latches of the CWDM SFP transceivers match the colored port indicators on the passive units therefore guaranteeing simple setup. Following color codes and wavelength are valid for CWDM.

cwdm-channels

Full CWDM Channels (18 Channels) Mux Demux Solution

The WDM system uses a multiplexer at the transmitter to combine several wavelengths together, each one carry different signal with bite-rate up to 10G and a demultiplexer at the receiver to split them apart. Both mux and demux are passive, requiring no power supply. The 18 Channels CWDM mux demux covers all channels of 1270nm to 1610nm in 20nm increments. Without replacing any infrastructure, it totally support data rates up to 180 Gbps by being completely protocol transparent. The main fields of applications are the use in SDH (STM-1, STM-4, STM-16, STM- 64), IP (Fast Ethernet, Gigabit Ethernet, 10 Gigabit) ATM and storage (1G, 2G, 4G, 8G, 10G Fibre Channel) networks. Connectors, located on the front of the CWDM mux demux modules, are labeled and use the same color-coding that is used to indicate the wavelength of the individual CWDM SFP transceivers (shown in the figure below).

cwdm-mux-demux

When fiber availability is limited, CWDM mux demux could increase the bandwidth on the existing fiber infrastructure. By using 18ch CWDM mux demux mentioned above and the CWDM SFP transceivers, up to 180 Gbps could be supported on a fiber pair.

18-channels-cwdm-mux-demux

Full CWDM SFP Transceivers Solution

CWDM SFP transceiver is based on the SFP form factor which is a MSA standard build. The max speed of this product is 1.25G and they are also available as 2.5G and of course the popular CWDM 10G SFP transceivers. The CWDM SFP transceiver has a specific laser which emits a “color” defined in the CWDM ITU grid. The CWDM ITU grid is defined from 1270 to 1610nm and has steps of 20nm. So the available wavelength is 1270nm, 1290nm, 1310nm, 1330nm, 1350nm, 1370nm, 1390nm, 1410nm, 1430nm, 1450nm, 1470nm, 1490nm, 1510nm, 1530nm, 1550nm, 1570nm, 1590nm and C. Besides, our CWDM SFP transceivers are similarly color-coded as the CWDM mux demux to help you match the right link connection (shown in the figure below).

CWDM SFP

We can make the CWDM SFP transceivers compatible with every brand (Cisco, HP, H3C, Juniper, Huawei, Brocade, Arista). A lot of brands have vendor locking and only with the proper coding. Fiberstore is specialized in this rebranding or recoding. We have many different switches and routers in our test lab to test the coding. We also use different Optical Spectrum Analyzers to ensure the CWDM SFP transceiver is emitting the right color and has the correct power budget. The CWDM SFP transceiver is used in combination with passive CWDM mux demux, and we can provide you a complete solution and advice on which equipment fits best in your project. Please give us your project details and we will provide the most efficient and economical solution.

1270nm SFP 1290nm SFP 1310nm SFP 1330nm SFP 1350nm SFP 1370nm SFP
1390nm SFP 1410nm SFP 1430nm SFP 1450nm SFP 1470nm SFP 1490nm SFP
1510nm SFP 1530nm SFP 1550nm SFP 1570nm SFP 1590nm SFP 1610nm SFP

Complete 10G SFP+ Transceiver Solution From Fiberstore

The enhanced small form-factor pluggable (SFP+) is an enhanced version of the SFP that supports data rates up to 16 Gbit/s. As we all know, SFP+ can support 8 Gbit/s Fibre Channel, 10 Gigabit Ethernet and 16G Fibre Channel. Therefore, there are three common SFP+: 8G SFP+, 10G SFP+ and 16G SFP+. In this text, I will mainly introduce the 10G SFP+ transceiver to you.

cheap 10G fiber optic transceivers

Introduction of 10G SFP+ Transceiver Standards
10 Gigabit Ethernet is a group of computer networking technologies for transmitting Ethernet frames at a rate of 10 gigabits per second. It was first defined by the IEEE 802.3ae-2002 standard. Over the years the Institute of Electrical and Electronics Engineers (IEEE) 802.3 working group has published several standards relating to 10G SFP+ transceiver. Among these standards, in terms of the optical fiber, they can be seen clearly in the following table:

Interconnect Media Type Wavelength Max range
10GBASE-SR Multi-mode fiber 850 nm 300 m
10GBASE-LR single-mode fiber 1310 nm 10 km
10GBASE-LRM Multi-mode fiber 1310 nm 220 m
10GBASE-ER single-mode fiber 1550 nm 40 km
10GBASE-ZR single-mode fiber 1550 nm 80 km

Specifications of 10G SFP+ Transceiver
10G SFP+10G SFP+ transceivers are multi-purpose optical modules for 10Gbit/s data transmission applications at 850nm, 1310nm and 1550nm. Since 10 gigabit ethernet is used more and more widely, there are a lot of manufacturers produce 10G SFP+. The following table shows the specifications of 10G SFP+ from Fiberstore, which provides these products at the best quality but the lowest price.

Model Number Transceiver Description
SFP-10G85-3M-xx 10GBASE-SR SFP+ for MMF, 850-nm wavelength, up to 300m
SFP-10G31-10-xx 10GBASE-LR SFP+ for SMF, 1310-nm wavelength, up to 10km
SFP-10G31-20-xx 10GBASE-LR SFP+ for SMF, 1310-nm wavelength, up to 20km
SFP-10G31-2M-xx 10GBASE-LRM SFP+ for MMF, 1310-nm wavelength, up to 220m
SFP-10G31-2-xx 10GBASE SFP+ for MMF, 1310-nm wavelength, up to 2km
SFP-10G31-40-xx 10GBASE SFP+ for SMF, 1310-nm wavelength, up to 40km
SFP-10G55-40-xx 10GBASE-ER SFP+ for SMF, 1550-nm wavelength, up to 40km
SFP-10G55-80-xx 10GBASE-ZR SFP+ for SMF, 1550-nm wavelength, up to 80km
SFP-10G55-100-xx 10GBASE SFP+ for SMF, 1550-nm wavelength, up to 100km

 Note: 10GBASE-LR has a specified reach of 10 kilometres (6.2 mi), but 10GBASE-LR optical modules can often manage distances of up to 25 kilometres (16 mi) with no data loss.

CWDM SFP+ and DWDM SFP+ are all operate on 10 Gigabit Ethernet
Wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths of laser light. WDM is divided into different wavelength patterns, conventional/coarse wavelength-division multiplexing (CWDM) and dense wavelength-division multiplexing (DWDM). CWDM and DWDM SFP+ are transceiver modules which are combined the CWDM or DWDM technology. This kind of SFP+ can allow you to expand your networks capacity without the need for physical fibre optic cabling.

    • CWDM SFP+

CWDM SFP+ series single mode transceiver is small form factor pluggable module for bi-directional serial optical data communications such as IEEE 802.3ae 10GBASE-LR/LW/ER. The following table shows the specifications of CWDM SFP+ from Fiberstore:

Model Number Transceiver Description
CSFP-10GXX-10-xx 10GBASE CWDM SFP+,1270nm~1330nm wavelength, up to 10km
CSFP-10GXX-10-xx 10GBASE CWDM SFP+,1350nm~1610nm wavelength, up to 10km
CSFP-10GXX-20-xx 10GBASE CWDM SFP+,1270nm~1330nm wavelength, up to 20km
CSFP-10GXX-20-xx 10GBASE CWDM SFP+,1350nm~1450nm wavelength, up to 20km
CSFP-10GXX-40-xx 10GBASE CWDM SFP+,1270nm~1450nm wavelength, up to 40km
CSFP-10GXX-40-xx 10GBASE CWDM SFP+,1470nm~1610nm wavelength, up to 40km
CSFP-10GXX-60-xx 10GBASE CWDM SFP+,1270nm~1450nm wavelength, up to 60km
CSFP-10GXX-60-xx 10GBASE CWDM SFP+,1470nm~1610nm wavelength, up to 60km
CSFP-10GXX-80-xx 10GBASE CWDM SFP+,1470nm~1610nm wavelength, up to 80km

CWDM SFP+

    • DWDM SFP+

The DWDM SFP+ is specifically designed for carriers and large enterprises that require a scalable, flexible, cost-effective system for multiplexing, transporting and protecting high-speed data, storage, voice and video applications. DWDM enables service providers to accommodate many hundreds of aggregated services of any sub-rate protocol without installing additional dark fiber. DWDM SFP+ transceiver is therefore the choice for the highest-bandwidth applications. The following table shows the specifications of DWDM SFP+ from Fiberstore:

Model Number Transceiver Description
DSFP-10GXX-40-xx 10GBASE 100GHz DWDM SFP+ for SMF, up to 40km
DSFP-10GHXXX-40-xx 10GBASE 50GHz DWDM SFP+ for SMF, up to 40km
DSFP-10GXX-80-xx 10GBASE 100GHz DWDM SFP+ for SMF, up to 80km
DSFP-10GHXXX-80-xx 10GBASE 50GHz DWDM SFP+ for SMF, up to 80km

DWDM SFP+

Conclusion
10G SFP+ transceivers are used in Ethernet switches, routers, firewalls and network interface cards. Storage interface cards, also called HBAs or Fibre Channel storage switches, also make use of these modules. For high bandwidth, CWDM SFP+ and DWDM SFP+ will be the tendency in the future.

How Many SFP Module Types Do You Know

How many modules types do you know? From the Fiberstore, I find this answer.The Fiber Optic Transceivers have a full range of sfp modules. Fiberstore supply various kinds of SFP module 100% compatible with Cisco SFP, HP SFP, Juniper SFP, Netgear SFP, DELL SFP, CWDM SFP, DWDM SFP, BIDI SFP, 10G SFP and so on. Next, I will give you a brief introduction on SFP module types provided by Fiberstore.

SFP Module Types

First SFP Module Types: CWDM SFP

The CWDM SFP (small form-factor pluggable) transceiver is really a compact optical transceiver used in optical communications for both telecommunication and data communications applications on the wavelength. CWDM SFP are used to link the ports to the fiber optic network, typical CWDM SFP like Cisco’s could support both Gigabit Ethernet and Fiber Channel. CWDM SFP transceiver modules make use of the SFP interface for connecting the equipment and use dual LC PC fiber connector interface for connecting the optical network. FiberStore CWDM SFP transceivers can be found with a variety of different transmitter and receiver types, allowing users to decide on the appropriate transceiver for each link to provide the required optical reach over the available optical fiber.

Second SFP Module Types: DWDM SFP

The Dense Wavelength-Division Multiplexing (DWDM) transceivers offer DWDM transport with dramatically lower power and cost in a standard pluggable SFP package. Fiberstore DWDM SFP is available in all 100 GHz C/L-band wavelengths on the DWDM ITU grid. As multirate interfaces they support any protocol from 100 Mbps to 4.25 Gbps. The modules meet the requirements of the IEEE802.3 Gigabit Ethernet standard and ANSI Fiber Channel specifications, they are suitable for interconnections in Gigabit Ethernet and Fiber Channel environments. The DWDM SFP is designed to accept DWDM SONET/SDH (with or without FEC) for 200km links and Ethernet/Fiber Channel protocol traffic for 80km links.

Third SFP Module Types: 10G SFP

The 10G SFP Transceiver Modules refers to 10G SFP Plus Transceivers,someone know that the sfp+ is an enhanced version of the SFP that supports data rates up to 10 Gbit/s. Several standards for 10G SFP has been released, 10GBase-SR is for OM3 multimode optical fiber, relevant SFP plus working distance 300 meters max, 10GBase-LR is for single mode optical fiber, relevant SFP plus working distance 10km, 10GBase-LRM is for FDDI multimode fiber, the SFP plus working distance 220 meters.

Want to know more SFP Module Types, pls visit fs.com, We will continue to update fiber optic transceiver information.Our optical transceivers are backed by a lifetime warranty, and you can buy with confidence. We also can customize optical transceivers to fit your specific requirements.

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