22
4.6. Connecting to the CAN interface
4.6.1. Connecting the data cables
The wired communication interface must be used in a bus network topology (Table 17). Do
not use a ring- or a star topology. The wired communication interface specifications restrict
the Bus length/Bus speed.
Bus length (L)
Max. stub length (S)
Accumulated stub length
250 m
11 m
55m
Table 16. Wired network interface cable lengths
CAN Cables
The connection to the CAN bus can be made using standard CAN cable wiring and
accessories. An Y-split CAN cable and inline CAN terminator cable is available for easy
installation and connection to other Li-ion batteries (see chapter 3.7; optional components).
!
Warning!
Always use the supplied protective M12 cap when the CAN connection is not
used. Otherwise, ingress protection is not guaranteed and water/moisture may enter the
Li-ion battery casing, which may cause serious damage.
Figure 14. Connecting to the CAN Interface
Termination Resistors
Use termination resistors or the inline CAN terminator cable at the end nodes to impede
