This Recommendation defines error performance parameters and objectives for international digital paths which operate at or above the primary rate.
本建议定义一次群速率和一次群速率以上国际数字通道的差错性能参数和指标。
This Recommendation defines error performance parameters and objectives for international digital connections operating below the primary rate of the digital hierarchy.
本建议规定了工作在低于数字系列的一次群速率的国际数字连接的差错性能参数和指标。
This Recommendation is concerned with the layer 1 electrical, format and channel usage characteristics of the primary rate user-network interface at the S and T reference points.
本建议涉及在S和T参考点处使用的一次群速率用户—网络接口的第1层电的、格式的和通路特性。
This Recommendation is concerned with the layer 1 electrical, format and channel usage characteristics of the primary rate user-network interface at the S and T reference points.
本建议涉及在S和T参考点处使用的一次群速率用户—网络接口的第1层电的、格式的和通路特性。
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