Beckhoff CX8110 Manual page 17

Product overview
STP
Shielded twisted-pair
Describes a cable with overall shielding without further specification of the type of shielding.
S/STP
Screened/shielded twisted-pair (wires are individually shielded)
This identification refers to a cable with a shield for each of the two wires as well as an outer shield.
ITP
Industrial Twisted-Pair
The structure is similar to that of S/STP, but, in contrast to S/STP, it has only two pairs of conductors.
CX8110 Version: 1.4 17