Products
Lowest price for Fiber Optic Cable - RS485 twisted 2 base 3 base 4 hearts 20AWG 22AWG 18AWG - AIXTON
We are happy to answer any questions, please send us your inquiries and orders.
product detail
RS-485 is an electrical-only standard. Unlike comprehensive interface standards, which define functional, mechanical, and electrical specifications, RS-485 only defines the electrical characteristics of the controllers and receivers that can be used to implement a balanced multipoint transmission line. This standard, however, is intended to be referenced by higher-level standards, such as DL/T645, for example, which defines the communication protocol for electronic energy meters in China, specifying RS-485 as the physical layer standard. Features: 1. Heat-resistant and flame-retardant. 2. Excellent insulation performance and chemical stability. 3. Excellent transmission performance due to the use of high-quality polyethylene for braided cable shielding. 4. Effective resistance to electromagnetic interference due to the use of a new type of aluminum foil and double-layer braided copper mesh shielding. Applications: RS-485 signals are used in a wide range of computer and automation systems. In a computer system, SCSI-2 and SCSI-3 can use this specification to implement the physical layer for data transmission between a controller and a disk drive. RS-485 is used for low-speed data communications in passenger vehicle buses in commercial aircraft cabins. It requires minimal cabling and can share cabling among multiple seats, reducing weight. Parameters Model NO OD(MM) Length (m) Maximum conductor resistance at 20℃(Ω/KM) Minimum conductor resistance at 70℃(Ω/KM) RS-485 2*0.5 5.5 100/200 39 0.012 RS-485 2*0.75 6.0 100/200 26 0.010 RS-485 2*1.0 6.6 100/200 19.5 0.010 RS-485 2*1.5 7.5 100/200 13.3 0.009 RS-485 2*2.5 8.7 100/200 7.98 0.008 RS-485 3*0.5 5.8 100/200 39 0.012 RS-485 3*0.75 6.3 100/200 26 0.010 Photos