Eaton XV300 Series - CAN-Bus-Topology; Figure 30: CAN Bus Segment with Four Nodes

5. External connections
5.6 CAN1 interface for the CANopen protocol, J1939 protocol, etc.
The maximal baud rate depends on the cable length
Possible baud rates
With a max. cable length
of
25 m
1000 kBit/s
50 m
800 kBit/s
100 m
500 kBit/s
M 250
250 kBit/s
500 m
125 kbit/s
500 m
100 kBit/s (can be set through soft-
ware)
1000 m
50 kBit/s
2500 m
20 kBit/s
5000 m
10 kBit/s
Whenpreparingconnections,ensurethatthecableshieldhasalow
impedanceconnectionwiththeconnectorhousing.
5.6.0.2 CAN-Bus-topology
l A bus segment can interconnect up to 32 slaves.
l Several bus segments can be connected using repeaters (bi-directional amplifiers).
The use of repeaters enables the maximum cable length to be
increased.
Repeaterscanalsobeusedforgalvanicisolation.Formoredetails,
pleaseconsultthedocumentationforrepeatersprovidedbyman-
ufacturer.
 MakesuretofollowtherecommendationsprovidedbyCiA(CANinAuto-
mation)athttp://www.can-cia.org.
A bus segment must be provided with cable termination (120 Ohm) at both ends.
These terminals must be connected in the plug directly between pin 2 and 7.
Thebussegmentmustbeterminatedatbothends.
Nomorethantwoterminationsmustbeprovidedforeachbussegment.
Operationwithoutcorrectcableterminationcancausetransfererrors.
Figure 30: CAN bus segment with four nodes
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XV30012/15 MN048017 ENwww.eaton.eu