7E frame format
7E is a frame format used to encode the header and trailer of some bit-oriented data transfer protocols.
The frame format operates with hexadecimal representation of the binary bit sequence 0111 1110. The 7E frame format is used in the bit-oriented data transmission protocols High Level Data Link Control( HDLC), Synchronous Data Link Control( SDLC), X.25 and Frame Relay. In addition, the 7E frame format is also used on the DXI interface for ATM and Switched Multimegabit Data Service( SMDS).