CAN_SHIELD CAN_GND connection

javi del <[email protected]>
Newsgroups gmane.comp.hardware.bus.can
Message-ID <[email protected]> 
Dear all,

I have to connect different CANopen devices (5).

Tow devices has optoisolators and have CAN_COMMON and the SHIELD of the unit.
Other have 0v power supply input and SHIELD terminal of the unit.

Other two devices have CAN_SHIELD, 0v, and SHIELD terminal.

The 0v of the units has a capacitor in between the SHIELD and the 0v.

The question is which is the recommended way to connect the GND and SHIELDs for these devices in order to have the best noise inmunity. 

Thanks a lot and best regards,

Javier
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