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This is a list of interface bit rates, is a measure of information transfer rates, or digital bandwidth capacity, ... Modem 9600 (2400 baud; V.32)
The ratio is not necessarily an integer; in 4B3T coding, the bit rate is 4 / 3 of the baud rate. (A typical basic rate interface with a 160 kbit/s raw data rate operates at 120 kBd.) Codes with many symbols, and thus a bit rate higher than the symbol rate, are most useful on channels such as telephone lines with a limited bandwidth but ...
Bit rates commonly supported include 75, 110, 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600 and 115200 bit/s. [19] Many of these standard modem baud rates are multiples of either 1.2 kbps (e.g., 19200, 38400, 76800) or 0.9 kbps (e.g., 57600, 115200). [23] Crystal oscillators with a frequency of 1.843200 MHz are sold specifically for this ...
Transmitting at 1,200 baud produced the 4,800 bit/s V.27ter standard, and at 2,400 baud the 9,600 bit/s V.32. The carrier frequency was 1,650 Hz in both systems. The introduction of these higher-speed systems also led to the development of the digital fax machine during the 1980s.
9600 baud : 9.6 kbit/s 14.4 kbit/s : 14.4 kbit/s 28.8 kbit/s ... V.42bis and V.44 standards allow modems to accept compressed data at a rate faster than the line rate.
For this reason, the baud rate value will often be lower than the gross bit rate. Example of use and misuse of "baud rate": It is correct to write "the baud rate of my COM port is 9,600" if we mean that the bit rate is 9,600 bit/s, since there is one bit per symbol in this case. It is not correct to write "the baud rate of Ethernet is 100 ...
V.32 (11/88) is an ITU-T recommendation for a modem operating as full-duplex on a 4-wire circuit, or half-duplex on a two-wire circuit, allowing bidirectional data transfer at either 9.6 kbit/s or 4.8 kbit/s at a symbol rate of 2,400 baud instead of the 600 baud of the V.22 standards. [2]
AX.25 does not define a physical layer implementation. In practice 1200 baud Bell 202 tones and 9600 baud G3RUH DFSK [4] are almost exclusively used on VHF and UHF. On HF the standard transmission mode is 300 baud Bell 103 tones. At the physical layer, AX.25 defines only a "physical layer state machine" and some timers related to transmitter ...