For general use inside a telephone subscriber station.
Standards / Testing Specifications
TOT (Telephone Organization of Thailand).
Conductor : 0.5 or 0.65 mm solid annealed copper
Insulation : Polypropylene or Polyethylene
2-core: Red and Green.
3-core: Red, Green and Yellow.
4-core: Red, Green, Yellow and Black.
5-core: Red, Green, Yellow, Black and White.
6-core: Red, Green, Yellow, Black, White and Brown