摘要
WDM技术使电信网发生了质的飞跃,此技术根据信道间距又分为CWDM和DWDM。分析了二者在成本、技术、维护等方面的各自优势,把CWDM与DWDM技术相结合,提出一种技术成熟、低成本、多业务接入、高QOS、适合中等城市的宽带城域网方案。
WDM technology, which can be divided into CWDM and DWDM according to channel interval, makes telecommunication network quickly expand. Superiorities of CWDM and DWDM on cost, technology, maintenance are analyzed and an approach of broad band MAN of mature technology, low cost, multi-service access, high QOS and suitable medium city development by combination of CWDM and DWDM technologies are given.
出处
《计算机工程与设计》
CSCD
2004年第1期95-97,共3页
Computer Engineering and Design
关键词
CWDM
DWDM
城域网
APS协议
光网络
波长间距
coarse wave division multiplexing
dense wave division multiplexing
MAN
automatic protect switch protocol.
