TMCM-1260 Hardware Manual • Hardware Version V1.10 | Document Revision V1.20 • 2018-05-17
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c:>
node
1
node
n
- 1
node
n
Host
Slave
Slave
Slave
CAN
termination
resistor
(120 Ohm)
termination
resistor
(120 Ohm)
}
keep distance as
short as possible
Figure 13: CAN bus structure with termination resistors
2.
BUS TERMINATION:
Especially for longer busses and/or multiple nodes connected to the bus and/or high communication
speeds, the bus should be properly terminated at both ends. The TMCM-1260 does not integrate any
termination resistor. Therefore, 120 Ohm termination resistors at both ends of the bus have to be
added externally.
3.
BUS TERMINATION:
The bus transceiver used on the TMCM-1260 units (TJA1051T) supports at least 110 nodes under
optimum conditions. Practically achievable number of nodes per CAN bus highly depend on bus
length (longer bus -> less nodes) and communication speed (higher speed -> less nodes).
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