论文部分内容阅读
无锡在1998年使用阿尔卡特的2.5G SDH设备建设了市区的骨干传输网,在骨干通道上,无锡和江阴之间有未使用的155M通道,我们的方案基于上述155M通道传输数字电视节目及开通以太网业务。 1、传送数字电视业务在数字电视节目的TS传输中,一般采用270M的ASI接口。按照目前的技术体系,在SDH设备上传输上述码流,使用DS3(45H)接口标准。由于ASI
Wuxi built an urban backbone transmission network using Alcatel’s 2.5G SDH equipment in 1998. There are unused 155M channels between Wuxi and Jiangyin on the backbone channel. Our solution is based on the 155M channel transmission of digital television programs and Opened Ethernet business. 1, the transmission of digital television services in the digital television program TS transmission, the general use of 270M ASI interface. According to the current technology system, the above code stream is transmitted on SDH equipment, using the DS3 (45H) interface standard. Due to ASI