
Rs233 frame/Ethernet frameGroups:Rs232 frame, Ethernet frame, group_name3, group_name4, Words: Serial data transfer using either 9-pin or 25-pin , Start bit, data bits (usually 8 bits), Parity bits, Odd parity, Even parity, stop bit, this transmission is sending the ASCII character, preample, Start delimileter, source address, destination address, length field, Data ( 64byte - 1500), Checksum, Common errorr control, consists of seven bytes all of the form 10101010, is a single byte, 10101011, it indicates the number of bytes of data in the frame, |