SDH传输设备误码的来源及解决办法
The Sources of Error-code of SDH Transmission Equipment and Solutions
摘要 SDH传输设备的误码是由均匀误码、随机误码和突发误码组成的。均匀误码来源于内部信号的同步关系,随机误码来源于设备内部的电磁辐射干扰,突发误码来源于设备的电源或时钟条件被破坏。各种主码都有随着环境条件恶化而扩大的趋势。误码的来源不同,解决的方法也不相同。调整信号时序,改善电源和时钟条件,降低辐射发射,是解决传输设备误码问题的基本方法。
关键词 误码 延时 干扰 温度
Abstract The error-code of transmission equipment(SDH) is consisted of equality error-
code, random error-code and burst error-code. The equality error-code is caused from
synchronization relations of inside signals. The random error-code is caused from
disturb of inside electromagnetism emission. The burst error-code is caused from
broken-out for correct power or correct clock. All error-code was extended when
environment was worsen. The solutions was unlikeness because the sources of error-
code was different. It is the basis method of get over error-code to adjust the delay
time,improve power and clock and reduce the electromagnetism emission.
Keywords error-code, delay-time, interference, temperature