This standard specifies the requirements, test methods, marking and packaging of PVC insulated and PVC sheathed symmetrical cables for digital office use. This standard applies to the manufacture, acceptance and use of cables. Cables are mainly used for short-segment connections within or between digital switching equipment, with a maximum transmission frequency of 1OMHz. It can also be used for short-range connections within or between other digital devices.
YD/T 818-1996 history
2008YD/T 1820-2008 Telecommunication Cables Central Office.Symmetrical Cables
1996YD/T 818-1996 PVC insulated PVC sheathed digital local symmetrical cable
YD/T 818-1996 PVC insulated PVC sheathed digital local symmetrical cable was changed to YD/T 1820-2008 Telecommunication Cables Central Office.Symmetrical Cables.