Forseen pros/cons of using round jacketed ribbon cable for EEM connections?

tomhepz

Hi all,

I am looking to build a crate up and was looking to perform the cable management inside myself - I have seem many systems are integrated with flat ribbon cable with IDC connectors.

I have found however that there exists such cable bound in a round format that you can strip, flatten out, and mount IDC connectors on (https://www.3m.co.uk/3M/en_GB/p/d/b00039389/).

I haven't seen any use of such cable, perhaps because there are some downsides - but ones I cannot forsee any from a cable management perspective... does anyone know of any problems I may face?

Similarly there is a more expensive shielded version of such cable (https://www.3m.co.uk/3M/en_GB/p/d/b00039391/) although unfortunately doesn't come in a 30 way variant - is EMI a problem with these cables that's worth shielding?

Cheers,
Tom

sb10q

I don't have quantitative information, but generally you'll want to keep the wires in a LVDS pair parallel to each other. From the pictures, this doesn't seem to be the case at least when using the shielded option.

tomhepz

sb10q

The cables come in variants where the wire are either:

Bonded/seperated alternating every inch or so
OR
Continuously bonded within the cable

The former is just for easier termination I believe (less stripping needed), but I expect the latter will be preferable for LVDS as you mention.

EDIT*: Although I cannot find any suppliers of the latter version