Type Cm Ethernet Cable

It is a cable jacket fire resistance rating defined in article 800 of the nec.

Type cm ethernet cable.

Category 5 cable cat 5 is a twisted pair cable for computer networks since 2001 the variant commonly in use is the category 5e specification cat 5e the cable standard provides performance of up to 100 mhz and is suitable for most varieties of ethernet over twisted pair up to 1000base t gigabit ethernet. Cmr cable is also referred to as riser rated cable. Such cables are limited to residential or other small applications where the number of communication cables used is very little. Cat 6 ethernet cable 100 ft flat white slim long internet network lan patch cords solid cat6 high speed computer wire with clips rj45 connectors for router modem faster than cat5e cat5 100 feet.

Within a single cable each colored pair will also have different twist lengths based on prime numbers so that no two twists ever align. Even so an understanding of the different types of ethernet cable and the maximum lengths that should be used is helpful. Cat 5 is also used to carry other signals such as telephony and video. Cat 5 cat 5e cat 6 cat 6a cat7 all have different levels of performance and therefore to is necessary to buy or select the right cable for the right application.

Understanding cable jacket ratings. It can be used when cables need to be run between floors through risers. Cl cm cmr and cmp so you need some cable to run for a new ethernet or home theater in your home and you know exactly what type and length of cable you need 50 feet of cat6 cable 15 feet of high speed hdmi cable whatever it might be. Cm cmg are the most commonly used commercial grade communication cable.

21 83 3 used new offers. The old fashioned cat 5 cable is no longer a recognized standard but it technically supports gigabit speeds just not well. In the case of cm the standard outlines general use or use in cases where the fire code does not place any restrictions on cable type. Cmr cable often called riser rated cable is constructed to prevent fires from spreading floor to floor in vertical installations.

The ethernet cables that are labeled type cm must pass a standardized flammability test before the cables are put into use. Cmx is a residential grade cable. Cmr cable stands for communications multipurpose cable riser. All three cables can work with gigabit ethernet.

The differences between the various types of ethernet cables are rather simple but some of the terminologies can be confusing.