Digital Terminals and Access (DTA); Attachment requirements for Data Terminal Equipment (DTE) to connect to Packet Switched Public Data Networks (PSPDNs) for CCITT Recommendation X.25 interfaces at data signalling rates up to 1 920 kbit/s utilizing interfaces derived from CCITT Recommendations X.21
数字终端和接入(DTA);CCITT建议X.25接口的数据终端设备(DTE)连接到分组交换公共数据网络(PSPDN)的附件要求 使用CCITT建议X.21衍生的接口 数据信令速率高达1920 kbit/s
Technical characteristics of packet mode terminal equipment capable of connection to a dedicated interface of a packet switched public data network using CCITT Recommendation X.25, making use of LAPB and LAPB extended