ONORM ENV 41802-4-1993 信息系统互连．X．25协议中继．用于永久性存取范围内虚拟呼叫的PSDN子网络相关介质的相关要求

标准号：ONORM ENV 41802-4-1993
中文标准名称：信息系统互连．X．25协议中继．用于永久性存取范围内虚拟呼叫的PSDN子网络相关介质的相关要求
英文标准名称：Information Systems Interconnection - X.25 Protocol Relaying - PSDN subnetwork dependent media dependent requirements for Virtual calls over a permanent access
发布日期：1993/2/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：Tlüs part of thls Functlonal Standard specific? subnetwork-type dependent media dependent requlrements applicable to an Interworklng unlt uslng Virtual calls over a permanent access to a PSDN. The Operation of an Interworklng unlt may involve relaylng from one subnetwork to another, and those subnetworks need not be of the same type. Thls part of thls Functlonal Standard appUes only to Communications uslng PSDN subnetworks with permanent access on whlch Virtual calls are used.