Synchronization Process of a Link
Original Publication Date: 1987-Jun-01
Included in the Prior Art Database: 2005-Feb-01
The logic represented in the drawing is used to verify that the receive side of a link stays in synchronism with the remote transmit side. The link is a full duplex link. For each direction, the receive side must stay synchronized with the remote transmit side to be able to understand the contents of the frame flowing in each direction, which is a mixture of circuit and packet traffic. It is assumed that the frames have the configuration described in European Patent Application No. 854500266. By definition and for a given line speed, the medium frame is nearly constant in duration. The medium frame duration is: Nc x BT < NF * 125 microsec < (Nc+1) x BT _ where Nc is the number of bits in the frame, and BT is the bit time. As a consequence, the number of bits per frame is equal to a constant Nc+0 or +1 bit.