‌485 communication cables are usuallyshielded twisted pairTo enhance anti-interference ability and transmission stability. Here are specific instructions:

Cable type

485 communication cables are commonly usedshielded twisted pairStructure, throughDifferential signal transmission(Voltage difference represents logic) realizes anti-interference and is suitable for long-distance communication in industrial environments. ‌

Shielding design

• ‌shielded layerCommonly used are aluminum foil and woven mesh double shielding, or tin plated copper wire drainage ground wire, which effectively suppresses electromagnetic interference. ‌

• ‌Grounding requirementsOrdinary shielded cables need to be grounded at one end, while armored cables need to be grounded at both ends. ‌

Applicable scenarios

• Industrial environment: Recommend 18AWG or thicker wire diameter, double shielded cable. ‌

• Harsh environment (such as buried or explosion-proof): Armored cables (ASTP) are required. ‌

Other Features

• Transmission distance: The standard is 4000 feet (about 1219 meters), but it can actually reach 3000 meters. ‌

• Node count: Supports up to 128 device connections. ‌