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随着社会的发展和人民生活水平的提高,我们对通信技术的要求也越来越高。伴随着Internet的迅猛发展,各种宽带接入技术也雨后春笋般地涌现,如 ADSL、VDSL、LAN、PON(Passive Optical Network,无源光网络)等等, 其中,结合了以太网的低成本、高带宽和PON的高可靠、基本免维护等突出优点的以太网无源光网络(EPON)技术格外引人注目。传统TDM业务是电信运营商的利润源泉,如何在采用新的宽带接入技术的同时又不放弃原有的利润来源,是电信运营商和电信设备制造商一致关注的焦点。 1.EPON为什么必须支持TDM 业务的接入
With the development of society and improvement of people’s living standard, our requirements for communication technology are also getting higher and higher. Along with the rapid development of the Internet, various broadband access technologies have sprung up like ADSL, VDSL, LAN, PON (Passive Optical Network), etc. Among them, the combination of low cost, High-bandwidth and high reliability PON, the basic advantages of basic maintenance-free Ethernet passive optical network (EPON) technology particularly striking. The traditional TDM service is the profit source of telecom operators. How to adopt the new broadband access technology without giving up the original source of profit is the unanimous focus of the telecom operators and telecom equipment manufacturers. Why EPON must support TDM business access