1) SDH loop
SDH环网
1.
Synchronizing modification of the SDH loop in central China power group;
华中电力集团公司SDH环网的网同步改进
2) SDH fiber ring network
SDH光纤环网
1.
Availability assessment of SDH fiber ring network;
SDH光纤环网的有效性评估
3) SDH self-healing ring network
SDH自愈环网
1.
Research on availability module in SDH self-healing ring network
SDH自愈环网有效性模型的研究
2.
Based on the work of SDH self-healing ring network theory, system performance analysis, described in the pilot protection SDH self-healing ring network signal transmission in the principle and system components, SDH self-healing ring network with the traditional c.
本文通过对SDH自愈环网的工作原理、系统性能进行分析，阐述了纵联保护信号在SDH自愈环网中传输的原理和系统组成，SDH自愈环网与传统的光纤纤芯传输保护信号相比具有哪些优越性，以及SDH自愈环网在微机光纤保护中应用的注意事项。
4) SDH ring self correcting net
SDH环形自愈网
5) SDH net
SDH网
1.
This paper mainly discusses the design principles and chief techniques of multimedia signal accessing into SDH Net.
该系统综合应用了语音和视频的压缩编码技术、多路E1反向复用技术和基于CPLD的时隙交换技术，可在SDH网中同时传输语音、视频和数据等多媒体信号，灵活性高，功能可靠。
6) SDH ring
SDH 环
1.
Associated with the expansion of network,the optimization scheme of transmission net- work is proposed to solve the dispatching of service across the different SDH ring.
介绍了城域传输网络的现状,并对 SDH 环叠加和环相套的扩容方案存在的问题进行了讨论。
补充资料：SDH
癸二酸二酰肼简称SDH，分子量230.31, 用作环氧树脂的潜伏性固化剂．参考用量20～35phr．固化条件120～160 ℃／4～0.5h。比双氰胺固化温度低，固化时间短，耐水性好，粘接强度高。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条