Riser-rated four-pair Cat 6 cable, typically marked CMR, is designed for vertical runs between floors and other non-plenum areas. Plenum-rated cable, typically marked CMP, is designed for air-handling spaces and uses a jacket that supports lower smoke and flame propagation requirements, making it appropriate where building codes call for plenum-rated wiring.

When selecting four-pair Cat 6 cables, compare solid bare copper conductors, 23 AWG gauge, and a stated bandwidth of 550 MHz, with some options tested to 600 MHz. Also check the shielding type, such as unshielded twisted pair (UTP) for many standard datacomm installations or shielded construction when the project calls for added protection from electromagnetic interference.

Plan four-pair Cat 6 cable pathways with room for the cable volume, use riser- or plenum-rated cable as the installation space requires, maintain separation from power and other interference sources, and follow the cable manufacturer’s bend-radius and pulling guidance. During termination, preserve pair twists as close to the connector as practical, use compatible Cat 6 components, label both ends, and test each link after installation.

Four-pair Cat 6 cables use four solid bare-copper conductor pairs and are tested to ANSI/TIA-568.2-D standards, providing a structured cabling foundation for current network installations. Riser- and plenum-rated options support different building pathways, while color choices and twist- and tangle-free packaging can simplify future additions, changes, and service work.