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加快新一代 400G 器件在数据中心的部署
Keysight N4891A 是一款适用于 400G 的前向纠错(FEC)感知型一致性测试解决方案,兼具灵活性与完整性。它填补了 400G 类别光收发信机模块和相关主机 ASIC 测试中的一处关键空白,可在第一层一致性测试期间监测 FEC 性能。
该解决方案能够让您深入了解 FEC 要求对元器件和系统设计权衡的影响,使您能够预测实际条件下的系统裕量。
N4891A 解决方案结合了 M8040A 64 Gbaud 高性能 BERT,以便在单个被测通道上生成正确条带化的 FEC 测试码型,同时还采用了 A400GE-QDD 400GE 第 1 层 BERT 和 KP4 FEC 多端口测试系统,以便在其他七个通道上提供正确对齐的条带化 FEC 流量,这七个通道可用于测量被测接口在极限条件下的 FLR。
400GABASE FEC 感知型解决方案与是德科技一致性测试解决方案(如光接收机极限测试和 IEEE 802.3bs 接收机预兼容性测试应用软件)相结合,可提供快速、准确、可重复的光电极限信号校准,从而进行互操作性测试。
400GBASE FEC 感知型接收机测试解决方案可用于以下应用:
FEC 感知第 1 层测试的原理
FEC 码字统计页面——FEC 端口统计数据和高级测量结果(如预先 FEC BER、丢帧率)。