RATE Vs BIT RATE/Data
RATE
Baud
rate is the number of change in signal-state/ pulse/symbol per second in a
communication channel.
For example :- A
baud rate of 1 kBd = 1,000 Bd is synonymous to a symbol rate of 1,000 symbols
per second. In case of a modem, this corresponds to 1,000 tones per
second, and in case of a line code, this corresponds to 1,000 pulses per
second. The symbol duration time is 1/1,000 second = 1 millisecond.
Also if any circuit shows a baud rate of 9600, that means
circuit changes its signal-state 9600 times in a second. Signal-State change
can include 0 to 1 or vice versa.
The symbol rate is
related to but should not be confused with gross bit rate expressed in bit/s.
Bit Rate is the number
of data bits (i.e. ‘0’ or ‘1’) transferred per second in a communication
channel.
For example :- A bit rate of 2400 means there are 2400
‘0’s or ‘1’s to be transmitted across communication channel in 1 second.
The main difference
between the two is that one change of state can transmit one bit, or slightly
more or less than one bit, that depends on the modulation technique used. So
the bit rate (bps) and baud rate (baud per second) have this connection:
Source:Google
