Data signaling rate

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In

.

Properties

1. The DSR is usually expressed in
   bits per second
   .
2. The data
   signaling
   rate is given by ${\displaystyle \sum _{i=1}^{m}{\frac {\log _{2}{n_{i}}}{T_{i}}}}$ where m is the number of parallel channels, n_i is the number of significant conditions of the modulation in the i-th channel, and T_i is the unit interval, expressed in seconds, for the i-th channel.
3. For
   Hartley's law
   .
4. For
   parallel transmission with equal unit intervals and equal numbers of significant conditions on each channel, the DSR is (m/T)log₂n; in the case of a two-condition modulation
   , this reduces to m/T.
5. The DSR may be expressed in bauds, in which case, the factor log₂n_i in the above summation formula should be deleted when calculating bauds.
6. In synchronous
   serial
   input side, but the modulation rate is only 1200 bauds on the 4-phase output side.

Maximum rate

The maximum user signaling rate, synonymous to

.

For a single channel, the

rate is given by ${\displaystyle SCSR={\frac {\log _{2}{n}}{T}}}$, where SCSR is the single-channel signaling rate in bits per second, T is the minimum time interval in seconds for which each level must be maintained, and n is the number of significant conditions of modulation of the channel.

In the case where an individual end-to-end telecommunications service is provided by parallel channels, the parallel-channel signaling rate is given by ${\displaystyle PCSR=\sum _{i=1}^{m}{\frac {\log _{2}{n_{i}}}{T_{i}}}}$, where PCSR is the total

for the I-th channel.

In the case where an end-to-end telecommunications service is provided by tandem channels, the end-to-end signaling rate is the lowest signaling rate among the component channels.

Rates and standards

Data Rate	Standard
1.5 Mbit/s	USB 1.0
1.544 Mbit/s	Digital Signal 1
12 Mbit/s	USB 1.1
155 Mbit/s	OC-3
480 Mbit/s	USB 2.0
622 Mbit/s	OC-12
1000 Mbit/s	Gigabit Ethernet
1063 Mbit/s	Fibre Channel (1GFC)
2125 Mbit/s	2GFC
2488 Mbit/s	OC-48
2500 Mbit/s	2.5GBASE-T, InfiniBand
2666 Mbit/s	OC-48 (FEC)
3125 Mbit/s	×4 10GBASE-LX4
4250 Mbit/s	4GFC
5000 Mbit/s	USB 3.1 Gen 1
8500 Mbit/s	8GFC
9.953 Gbit/s	OC-192
10.000 Gbit/s	USB 3.1 Gen 2
10.3125 Gbit/s	100GBASE-CR10
10.51875 Gbit/s	10GFC
10.664 Gbit/s	OC-192 (FEC)
10.709 Gbit/s	OC-192 (ITU-T G.709)
11.100 Gbit/s	10 GbE FEC
14.025 Gbit/s	16GFC "Gen 5"
25.78125 Gbit/s	×4 100GBASE-CR4
28.05 Gbit/s	32GFC "Gen 6"
28.05 Gbit/s	×4 128GFC "Gen 6"
120.579 Gbit/s	100GBASE-ZR

See also

• Bit rate
• Bandwidth (computing)
• Baud
• Symbol rate

References

•  This article incorporates public domain material from Federal Standard 1037C. General Services Administration. Archived from the original on 2022-01-22.