Sterlite Technologies Limited manufactures Indoor Copper Telecom Cables. Sterlite Technologies Limited is ISO 9001 certified company. The Indoor Copper Telecom Cables deliver superior performance in data transmission and performance reliability. These cables are polyethylene insulated twisted pair PVC sheathed cables in individual screened pair, Cat3 and Cat5 variants. These cables are recommended for premise installations to carry signals in digital subscriber lines [DSL]. They are applicable in telecommunication networks.