Chinese translation of ABM is an asynchronous balanced mode, which is divided into IP and multimedia, and it is a data communication mode using high-level data link control (HDLC). Asynchronous means that there is no common clock for data transmission between two stations, and balanced means peer-to-peer communication between the two stations, which eliminates the "imbalance" between the master station and the slave station at both ends of the data link.
ABM: Asynchronous Balanced Mode (ABM) is a communication mode of HDLC. The derivative protocol supports peer-to-peer communication between two stations, and any station can initiate this communication. A data communication mode controlled by high-level data link control (HDLC). Asynchronous means that there is no common clock for data transmission between two stations, and balanced means peer-to-peer communication between the two stations, which eliminates the "imbalance" between the master station and the slave station at both ends of the data link.
Extended data:
Characteristics of asynchronous balance mode
HDLC is a typical representative of bit-oriented data link control protocol, which does not depend on any character encoding set. Data messages can be transmitted transparently, and the "0-bit insertion method" used to realize transparent transmission is easy to realize in hardware; Full duplex communication with high data link transmission efficiency; All frames are checked by CRC, and the information frames are numbered in sequence, which can prevent omission or repetition and has high transmission reliability; The transmission control function is separated from the processing function, which has great flexibility.
Baidu encyclopedia -ABM?
Baidu Encyclopedia-Asynchronous Balance Mode