Betrieb, Operations

cWDM


Multiple usage of optical fiber through optical multiplexer technology allows for significant cost-savings, both in terms of one-time costs (CAPEX) as well as ongoing operating costs (OPEX). With the exception of special applications, the sophisticated but quite complex dWDM (dense wavelength division multiplexing) technology - popular brands being e.g. Nortel Optera or Alcatel Light Manager- is increasingly being supplanted by cWDM (coarse wavelength division multiplexing) .

cWDM is distinguished by
  • A high degree of reliability through the exclusive use of purely passive optical components (Passive Optical Network PON). Wear-out and component deterioration are unheard of - and with no need for a power supply additional malfunction sources and cabling efforts in often rather delicate repeater stations are avoided.
  • Unsurpassed cost efficiency through the use of typically two-thirds fewer transceivers per network - further enhanced by the option of employing alternative pluggables where possible technically as well as in terms of applicable license law. The reduction of active components has the pleasant side effect of even further reducing management and operating costs.
  • Complete interoperability among components through standardization according to ITU standard G.694.2 - clearing the way for use of alternative SFP and GBIC providers or the use of various filter providers.

To provide particular investment protection for existing systems, next layer can offer custom-tailored cWDM filters - in most cases allowing the continued use of existing systems without pluggables, or serving other special challenges.

As a system integrator, we naturally have the competencies and tools for design, planning, installation, acceptance measurements and maintenance at our disposal. We hold all necessary accessories like SFPs, GBICs and cabling components on stock, allowing us for quick and successfull implementation of turn-key solutions

Typical cWDM applications are
  • Capacity expansion in existing fiber lines, i.e. from one gigabit to four gigabits Ethernet.
  • Parallel development of new technologies in existing fiber lines, i.e. SAN and gigabit Ethernet parallel to an existing SDH infrastructure in leased fibers.
  • Topology optimization independent of subjacent media, i.e. separation of a gigabit Ethernet ring into a core ring and several access rings.

We look forward to your inquiry, and are certain that we have references and the right solution on hand for your application! We will be happy to answer any questions you may have.

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