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To handle increasing bandwidth requirements cable operators are made to upgrade their network architectures. These changes are pushing optical fiber deeper in to the network. However replacing existing transmission lines with fiber is not probably the most cost-effective ways to expand bandwidth. Improvements in optical filtering are generating it easy to significantly increase the variety of wavelengths within a fiber. CWDM has gained prominence in multi-wavelength digital transport architectures given it permits the usage of low-cost, un-cooled DFB laser transmitters. Moreover, powering requirements are reduced and reliability is increased in contrast to DWDM solutions.

This suite of CWDM passives is specifically made in order to meet the requirements HFC architectures. The CWDM laser is located in the optical node, which can be typically put in a backyard environment with relatively warm changes. These temperature variations place special restrictions about the channel bandwidth from the CWDM passives. The analog nature from the signals transmitted from the HFC network also necessitates tighter control of the specifications from the CWDM passives than others suitable for digital transmission systems.

Scientific-Atlanta 16-Channel CWDM system is optimized for your analog transmission in HFC networks by using a 16 channel CWDM module. What's more, it offers a very powerful solution for fiber-poor areas, along with a cost-efficient option to DWDM in short to medium distances. CWDM is different from DWDM because the optical channel spacing between the light sources is much greater (20 nm). This wide spacing, joined with a tight control over the channel boundaries from the CWDM passives, signifies that variations in the wavelength of reverse transmitters due to temperature changes won't result in loss in signal/service. Therefore permits the use of un-cooled DFB lasers and so drives down the costs and power consumption significantly while increasing overall reliability.

The CWDM Multiplexer/Demultiplexer is an essential component for working with CWDM to raise network efficiency by significantly reducing fiber counts. The unit is available in the industry recognized, LGX-compatible form key to allow easy, snap-in mounting in many different enclosures and cabinets. The LGX module can be utilized within the same chassis as coupler/splitters and patching modules to accomplish high-density rack configurations. The MUX/DMUX component is additionally optimized to relieve combined insertion loss whatsoever wavelengths.

What does a CWDM module do? CWDM modules combine or separate to 18 wavelengths in to a single fiber. CWDM technology uses ITU standard 20nm spacing relating to the wavelengths, from 1270nm to 1610nm. CWDM Modules utilize thin-film coating and micro optics package technology. They are available in two main configurations: CWDM Multiplexer/Demultiplexer modules and CWDM Add/Drop Multiplexer modules. CWDM Mux/Demux Modules can be found in 4, 8 and 16 channel configurations. These modules passively multiplex the optical signal outputs from 4 or more electronics, send on them just one optical fiber and after that de-multiplex the signals into separate, distinct signals for input into electronic products on the opposite end from the fiber optic link. CWDM Add/Drop multiplexer Modules supply the capacity to add or drop a single wavelength or multi-wavelengths from a fully multiplexed optical signal. This gives intermediate locations between remote sites to gain access to the most popular, point-to-point fiber segment linking them. Wavelengths not dropped, pass-through the OADM and continue on in direction of the remote site. Additional selected wavelengths may be added or dropped by successive OADMS as required.

CWDM Mux/Demux module- CWDM MUX and CWDM Demux are created to multiplex multiple CWDM channels into a couple of fibers. The core of CWDM Module application may be the passive MUX/DEMUX unit. The normal configuration is 1x4, 1x8, 1x16 channels. Buy CWDM MUX module and CWDM Demux module from fiber optic products worldwide online shop with full confidence.

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