Cisco CWDM Passives for 16-Channel CWDM HFC Architectures Data Sheet

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Data Sheet

Cisco Prisma DWDM Passives

Product Overview

Facing competitive pressures and rapidly accelerating user demand for interactive services, cable operators need

to upgrade their network architectures. These upgrade requirements are pushing optical fiber deeper into the

network. But simply replacing existing transmission lines with fiber is no longer the most cost-effective way to

handle increasing bandwidth requirements. Operators are now taking advantage of advances in optical filtering

that significantly increase the number of signals (or wavelengths) that can be carried on a single fiber, a process

known as dDense wavelength-division multiplexing (DWDM).

Cisco

Prisma

multiplexer and demultiplexer components (Figure 1) are essential when DWDM is implemented

to increase network efficiency by significantly reducing fiber counts. Most units are available in the industry-

recognized, LGX-compatible form factor to allow easy, snap-in mounting in a variety of enclosures and cabinets.

The LGX modules can be used in the same chassis as coupler, splitters, and patching modules to achieve high-

density rack configurations. The Cisco Prisma multiplexer and demultiplexer components are also optimized to

achieve low insertion loss at all wavelengths. The 40-channel wavelength parts are packaged in standard 1 or 2

RU enclosures that mount in any standard 19-inch equipment rack. A single-channel optical add-drop multiplexer

(OADM) is also available in a raw filter package for outside plant applications.

Figure 1. Cisco Prisma LGX DWDM (Left), Raw Filter (Top Left), FOSC Basket (Top Right), Rack Mount Enclosure (Bottom

Left), and Cassette (Bottom Right)