RS485 cable, RS-485 bus cable, RS485 cable price, RS485 communication cable, RS485 cable specifications
RS485 communication cable has a characteristic impedance of 100 ohms. The conductor is composed of 2*2*24 AWG stranded tinned electrolytic copper wire. The colored insulation jacket facilitates installation identification. The cable features 100% overall shielding with aluminum foil/polyester tape, an additional independent stranded tinned copper grounding conductor, and an industrial gray PVC outer jacket. It complies with UL AWM 2919.
RS485 bus cable; Features: 1. RS-485 electrical characteristics: A logical "1" is represented by a voltage difference of +(2-6)V between the two wires; a logical "0" is represented by a voltage difference of -(2-6)V between the two wires. The interface signal level is lower than RS-232-C, which is less likely to damage the interface circuit chip. Furthermore, this level is compatible with TTL levels, making it convenient for connection to TTL circuits. 2. The maximum data transmission rate of RS-485 is 10 Mbps.
3. The RS-485 interface uses a combination of balanced drivers and differential receivers, which enhances common-mode interference immunity, meaning it is highly resistant to noise interference. RS485 Bus Cable; Functions
PCs and smart devices often communicate via methods such as RS232, RS485, and Ethernet, depending on the device's interface specifications. However, RS232 and RS485 only represent the physical medium and link layers of communication. To achieve bidirectional data access, you must develop your own communication application. However, most such applications fail to conform to ISO/OSI specifications and only implement limited functionality for a single device type, making them less universal. In a device network consisting of more than two RS232 or RS485 devices, RS485 must be used as the communication medium. Information exchange between devices on an RS485 network can only be achieved through a "master" device, typically a PC. Such a network can only have one master device, with all other devices acting as slaves. Fieldbus technology is based on the ISO/OSI model and features a comprehensive software support system that addresses bus control, conflict detection, link maintenance, and other issues.
Note: This standard single-pair RS-485 communication cable has a characteristic impedance of 120 ohms and consists of two 24AWG stranded tinned copper wires with PE insulation. It is double-shielded with aluminum foil/polyester composite tape (100% shielding) and tinned copper wire (90% shielding). It also includes a separate ground conductor and complies with UL 2919.
