CMG este o simbolizare de cablu conform NEC / UL (USA): C = Communications cable; M = Multipurpose rating (reading by usage, UNVERIFIED); G = General purpose; CMG = Communications cable, general purpose (same listing level as CM). 300 V, 60 to 75 C. UL 444; NEC Article 800.
3 sisteme de codificare recunosc această simbolizare