different cables in the same network

Hi all,

we deal with installation of fleet management devices into trucks. One of
our latest work was to make connection between the fleet management device
and the digital tachograph to reach the possibility to download the data
from the tachograph via CAN network. In this case the fleet management
device was already connected to the truck's FMS CAN network and we had to
connect to this network the tachograph too: FMS gateway+fleet management
device+ tachograph. I hope it is understandable till now.
In the trucks I found only unshielded twisted pair wires for CAN purposes.
Now we got from the fleet management device's producer shielded twisted pair
wires to make the connection between the fleet management device and the
tachograph (the required wire lenght is appr. 4-5m).

My question: is it possible to use shielded and unshielded wires together in
one network?

Thanks in advance: Tamas Hadarits

www.tachografszerviz.hu

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