Tööstuslik andmeside kontrolltöö 2 abimaterjal - vastused
transmission · used primarily for transmission of blocks of characters (ASCII files) · no `start' & `stop' secondarystation in an operation mode to report that a conditionhas occurred in Size of PPP frame can grow unpredictably due to byte
bits -> uses transmission controlcharacters before each block · known as SYN (synchronous idle) transmission of a frame andretransmission of the frame will not correct the insertion.
characters 1st SYN allow receiver to obtain & maintain bit synchronization 2nd SYN provides byte condition.> NRM operation and error recovery> ABM operation and error Problem appears only if the maximum size of frame is limited.
synchronization Frame Synchronization ~ Asynchronous Transmission using STX & ETX 1
annaabi.ee 
