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1 System Overview
This chapter introduces the background, architecture, system features and applicable
standards/recommendations. It aims at laying a basis for readers to understand the
equipment.
1.1 System Background
The ZXMP M600 is the metro CDWM system developed by ZTE. It features large
optical transmission capacity and can implement transparent transmission of various
services at multiple rates. It can be applied to the convergence and access layers of
large MANs as well as various layers of middle- and small-sized MANs.
In the following, the Metropolitan Area Network (MAN) and Wavelength Division
Multiplexing (WDM) will be introduced briefly.
1.1.1 MAN
As data services such as IP and Ethernet services develop rapidly in recent years, a data
network that can provide wide coverage, high-speed bandwidth and convenient
services is required for providing services such as Internet access, IP-based virtual
private network, IP phone, multimedia application and e-commerce. Meanwhile, as a
metropolis features prosperous economy, dense population, compact coverage area and
frequent information exchange, the information-oriented construction keeps developing
rapidly. Thus, the requirements on MAN also becomes higher and higher.
1.1.1.1 Concept
Generally a MAN is considered as a broadband network that has a unified protocol and
connects government departments, educational and scientific institutions, companies
and home users. It provides data services as well as integrated multimedia services
such as packet voice, graphic and video services, and covers local public networks in
metropolitan and suburb areas.
Based on the statistics and packet technology, the MAN boasts of a clear network
structure, perfect expandability and high reliability. The products and technologies
1-1
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