Internal frame constitution method for digital cross connector

Abstract

Abstract PURPOSE:To attain the miniaturization of the device and to save the line concentration space by applying the same time switch to either of a synchronous system and a synchronous system digital signal simultaneously to connect and replace the internal frame constitution in either level in the unit of high-order group or a low-order group. CONSTITUTION:In the synchronizing frame constitution where a DS3 signal is converted into a signal synchronized with a common frequency by direct stuff synchronization, one frame length is 204-bit, a frame arrangement number is allocated to a 1st bit and stuff control bits are assigned to the 51th and 103th bits. Moreover, a parity check bit is assigned to the 204th bit. The said frames of 28 arrays are arranged in series to form a multi-frame.

Inventors

• 👤 Yoshinori Rokugo

Bibliographic Details