Originally Posted by Colm
It is rated CMX, which is fine. FWIW most solid core network cable is rated CM, CMX, CMR, or CMP because it is intended to go in walls and ceilings.
Could you clarify what this means?
"General Purpose (CM, CMG, CMx) Cable
Will burn and partially self extinguish. Not for use between build floors or in air plenum spaces. Often these cables are used for workstation cables and patch cords. Complies with UL-1581 testing."
The way I read it on a CMx cable is that it is not intended to go between floors in a build out because it may not self-extinguish or it may allow fire a pathway to travel upward between floors.
I have always looked at the CL2/CL3 rating before now, so this is new to me, and I would expect to the original poster, but I have heard of 'riser rated' cabling or being in wall as well as plenum rated - which apparently carry the CMR and CMP cable ratings. But, the CM, CMx, and CMG ratings seem to indicate that while it may be fine for in-wall use, it is not appropriate (legal?) for use above a ceiling or for carrying a signal between floors.
If you have some good insight on these ratings, it would be great. Thanks.