Type Cm Network Cable
Cmr cable is also referred to as riser rated cable.
Type cm network cable. 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. Such cables are limited to residential or other small applications where the number of communication cables used is very little. The ethernet cables that are labeled type cm must pass a standardized flammability test before the cables are put into use. 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.
Understanding cable jacket ratings. The many types of ethernet cable and where they come from. It can be used when cables need to be run between floors through risers. Cmr cable stands for communications multipurpose cable riser.
Cm cmg are the most commonly used commercial grade communication cable. Along the cable is printed. 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. It is a cable jacket fire resistance rating defined in article 800 of the nec.
Learn the specifications standards and features of the coaxial cable twisted pair cable and the fiber optical cable. Type cm 24awg 75 c ul e188630 csa ll81295. Cable twisting length is not standardized but typically there are 1 5 2 twists per cm in cat 5 e and 2 twists per cm in cat 6. Cat 6 is the sixth generation of twisted pair ethernet cabling that is used in home and business networks.
This tutorial explains the types of network cables used in computer networks in detail. Category 6 is an ethernet cable standard defined by the electronic industries association and telecommunications industry association. To help out we put together a quick rundown on what the different. Cmr cable often called riser rated cable is constructed to prevent fires from spreading floor to floor in vertical installations.
Set the wayback machine to the late 1980s. There are three types of network cables. Cat 5 is also used to carry other signals such as telephony and video. The differences between the various types of ethernet cables are rather simple but some of the terminologies can be confusing.
Within a single cable each colored pair will also have different twist lengths based on prime numbers so that no two twists ever align.