Preparations
19
NetMax N8000 System Controller
Owner’s manual
The CAN-bus makes it possible to use different data transmission rates, in which the boud rate is
indirectly proportional to the length of the bus. If the network is only slightly extended, higher
baud rates up to 500 kbit/s are possible. In case of larger extensions, the baud rate has to be
lowered (to a min. transmission rate of 10 kbit/s). The following table explains the relationship
between baud rate and length of the bus or extension of the network. In principle, bus lengths
over 1000 meters should only be realized with repeaters.
Please see the CAN bus principles chapter on page 36 in the appendix of this document as well
as the instruction manuals of the connected devices for further information on CAN bus
(especially on system examples and performance specifications).
Assignment of CAN plug
Pin Name
Colour
T568A T568B
2 CAN_GND Green Orange
4CAN_H(+) Blue
5 CAN_L (-) Blue striped
7 MONITOR BUS + Brown striped
8 MONITOR BUS - Brown
Transfer rate (in kbit/s) Bus length (in m)
500 100
250 250
125 500
62,5 1000
20 2500
10 5000
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