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CAN bus wiring
Note the following when connecting the CAN bus:
- Each bus end must be fitted with a terminating resistor of 120 Ω (see drawing).
- The maximum wire length depends on the bit rate:
Bit rate
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Maximum wire length
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Maximum length of a stub
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Maximum length of all stubs
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1 Mbit/s
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25 m (82')
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1.5 m (5')
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7.5 m (25')
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800 kbit/s
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50 m (164')
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2.5 m (8')
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12.5 m (41')
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500 kbit/s
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100 m (328')
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5.5 m (18')
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27.5 m (90')
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250 kbit/s
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250 m (820')
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11 m (36')
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55 m (180')
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125 kbit/s
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500 m (1,640')
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22 m (72')
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110 m (360')
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50 kbit/s
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1,000 m (3,280')
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55 m (180')
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275 m (902')
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- Only use cables that are specified by the manufacturer for use in the CAN bus.
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