文件名称：G.704 - E1/T1的帧格式
文件大小：202KB
文件格式：PDF
更新时间：2014-03-26 16:19:09
G.704
This Recommendation gives functional characteristics of interfaces associated with: – network nodes, in particular, synchronous digital multiplex equipment and digital exchanges in IDNs for telephony and ISDNs; and – PCM multiplexing equipment. Clause 2 deals with basic frame structures, including details of frame length, frame alignment signals, Cyclic Redundancy Check (CRC) procedures and other basic information. Clauses 3 to 6 contain more specific information about how certain channels at 64 kbit/s and at other bit rates are accommodated within the basic frame structures described in clause 2.