NEBS认证——设备DC端口的性能要求
Criteria for DC Port of Equipment in the NEBS Authentication
摘要 NEBS认证对设备DC端口的性能要求是GR-1089-CORE Issue 4,June 2006版本中新增加的部分。这部分标准适用于由共用DC电源供电的通信设备,认证要求主要参考ANSI T1.315:2001 《电信环境中DC电源供电设备的电压等级》。NEBS认证对DC端口的性能要求主要有四个方面的内容:一是设备DC端口最大和最小工作电压范围;二是设备DC端口抗瞬变高压和低压的能力;三是设备DC端口差模噪声发射;最后是设备DC端口差模噪声抗扰度要求。
关键词 NEBS;DC电源端口;差模噪声;电压瞬变;电磁兼容
Abstract The criteria in this thesis are the new requirements of NEBS,and apply to the
telecommunications equipment that is powered from a shared DC power plant。The
criteria are adopted from ANSI T1.315:2001 Voltage Levels for DC-Powered Equipment
Used in Telecommunications Environment.This thesis mainly includes four parts.The first
is the minimum and maximum input voltages of the DC power port; the second is the
immunity to the undervoltage and overvoltage transient for the DC power port;the third
is the conducted differential-mode noise emission from the DC power port,and the last
is that the equipment should operate and should meet its applicable requirement when
its DC power port is subjected to conducted differential-mode noise.
Keywords network equipment building system; DC power port;differential-mode
noise;voltage transient; electromagnetic compatibility
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