List of network buses

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List of electrical characteristics of single collision domain segment "slow speed" network buses:

Contents

NameMultidropMax nodesElectrical typeCable typeMax bitrate [ kbit/s ]Length at max bitrateMax length [m]Bitrate at max length
EIA-485 (UART based)Y256 EIA-485 Twisted pair 1000 kbit/s1330 m64 kbit/s
SCSI-1/2 Y8 Open collector Ribbon cable 20 000 kbit/s3 m6 m5 Mbit/s/ch
SCSI Ultra2 Y16 Differential Ribbon cable with twisted pairs40 000 kbit/s12 m
LIN [1] Y16 Open collector open collector with pull-up to 12V car supply19.2 kbit/s40 m
SIOX Y6219.2 kbit/s
I²C Y127 or 1023 Open collector 5000 kbit/s7.6 m
SMBus Y128 Open collector 100 kbit/s
PMBus Y128 Open collector 400 kbit/s
10BASE5 Y100 Single ended RG-8X coaxial 10 000 kbit/s500 m500 m
10BASE2 Y30 Single ended RG-58 coaxial 10 000 kbit/s185 m185 m
CAN Y128 ISO 11898-2 Differential Twisted pair 1000 kbit/s40 m1000 m [2] 50 kbit/s
DMX512-A N32 EIA-485 Twisted pair 120 Ω [3] 250 kbit/s548 m548 m (1800ft.) [4] 250 kbit/s
DCC Y127 Single ended 5 kbit/s
RS-232 N2 Single ended 128 kbit/s1.5 m (approx)15 m19.6 kbit/s
PSI5 Y Twisted pair 189 kbit/s12 m (approx)
1-Wire Y248 Open collector Single conductor, with ground16.3 kbit/s300 m
X10 Y256 Power line 0.05 kbit/s / 0.06 kbit/s
FlexRay Twisted pair 20 000 kbit/s
SENT [5] N2 Single ended Single conductor, with 5 V power supply and groundasync. transmission,

min. 39.216 kbits/s

5 m
SPC [6] Y5 Single ended or

Open collector

Single conductor, with 5 V power supply and ground, shielded when using higher speedssync. and async. transmission,

variable up to ~150 kbit/s

~0.5 m5 msame as SENT
I3C Y12712 500 kbits/s
SPI Yvariable up to ~10000 kbit/s

(depends strongly on physical setup)

The number of nodes can be limited by either number of available addresses or bus capacitance. None of the above use any analog domain modulation techniques like MLT-3 encoding, PAM-5 etc.

PSI5 designed with automation applications in mind is a bit unusual in that it uses Manchester code.

See also

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References

  1. "LIN Standards (older versions are free to download, newer to be bought on ISO web site)". www.lin-cia.org. Retrieved 2019-07-31.
  2. "Microcontroller Interfaces, Part 3". 090114 ucpros.com
  3. "Ujjal's DMX512 Pages....DMX512 Physical properties". 090610 dmx512-online.com
  4. "DMX Wiring and Practice Quick Reference".
  5. http://www.diva-portal.org/smash/get/diva2:1162587/FULLTEXT02 "Implementing and Analyzing SingleEdge Nibble Transmission (SENT)Protocol for Automotive Applications", Master thesis of Naseem Ullah, 2014
  6. Strasser, Michael; Rasbornig, Friedrich; Platzdasch, Hagen; Gastinger, Ferdinand; Eggiman, Christoph; Beaurenaut, Laurent (2009-04-20). "Single-Edge Nibble Transmission: Challenges and Evolutions". SAE Technical Paper Series. Vol. 1. Warrendale, PA. doi:10.4271/2009-01-0125.{{cite book}}: CS1 maint: location missing publisher (link)