10-Gigabit/s DWDM System with a Band Management Feature

• Volume 51 Number 2 June 2002

• Information Systems

AUTHORS

OVERVIEW

As the use of dark fiber as a backbone of carriers is becoming common, an increasing number of carriers are adopting dense wavelength division multiplexing (DWDM) systems in their networks, which results in growing market demand for systems with large capacity and high flexibility in transmission performance. Hitachi has added to its lineup of the AMN series a 10-Gbit/s metro core DWDM system, AMN6050. AMN6050 directly accommodates 10-GbE and GbE signals, thereby making it possible to use DWDM systems efficiently. Also, with a newly developed band management module (BMM), the system can manage the wavelength band, select wavelengths for specified routes, and transmit multiplexed signals with different transmission characteristics into the same fiber. Based on broad experiences in delivering ultra-long-haul and long-haul 10-Gbit/s-class DWDM systems, Hitachi can design flexible optical networks. As a support service in building optical backbone networks, Hitachi participates in the design of networks from the preparation stage. Also through site/route surveys, Hitachi provides various services to build better-suited networks and enable stable transmission. Thus, Hitachi is more than simply a provider and installer of network equipment — it is a provider of total optical transmission solutions.

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RELEVANT SITES

	HITACHI's Metro Core DWDM
	HITACHI's Metro Core DWDM (Japanese Only)
	The Hitachi Hyoron (Japanese Only)

KEYWORDS

DWDM, metro, AMN6050, optical, transport

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