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Description: RS-485 also known as TIA-485-A, ANSI/TIA/EIA-485 or TIA/EIA-485.

Product description: Flame retardant wire ZR-BV ZR-BVR ZR-RVS, suitable for AC rated voltage 110kV plastic insulated power cable, 450/750V plastic insulated control wire, 450/750V and below electrical equipment. Used in power transmission and distribution, control, alarm, fire system product line.

Refractory wire refers to the cable that can maintain a certain period of safe operation in the case of flame combustion. Fire-resistant cables are widely used in high-rise buildings, underground railways, underground streets, large power stations and important industrial and mining enterprises and other places related to fire safety and fire rescue, such as fire equipment and emergency lighting and other emergency facilities power supply lines and control lines.