Rs485 Cable Spec

Rs485 is the most versatile communication standard in the standard series defined by the eia as it performs well on all four points.

Rs485 cable spec.

The industrial rs 485 cables are designed with low capacitance ideal for long distance applications. Configurations are shown for a simple single transmitter multiple receiver network through multiple transceiver to multibranched circuits. The cable has a maximum capacitance of 17 pf ft 14 5 pf typical and. The cable has a maximum.

The proper method of wiring an rs 485 network is described with recommendations for twisted pair cabling and correctly locating termination resistors. Received waveforms are shown for examples of proper and improper cable termination. R e smith serial communication products is your rs485 rs232 and rs422 authority for converters repeaters microprocessors fiber optics ethernet serial port server ethernet serial products mei nodes and networks usb serial and digital i o solutions serial and analog i o solutions including rs485 rs232 rs422 rs 485 rs 232 rs 422 telemetry process control translators extenders. Rs485 is primarily used in multi drop configurations that make use of its balanced differential interface.

The extremely high volume of category 5 cable used makes it widely available and very inexpensive often less than half the price of specialty rs 422 485 cabling. Rs 485 also known as tia 485 a or eia 485 is a standard defining the electrical characteristics of drivers and receivers for use in serial communications systems. Belden offers the industry s widest range of rs 485 cable options. Figures 3 and 4 show an rs485 pinout diagrams for 9 pin db9 and 25 pin db25 connectors.

9842 rs485 2 pr 24 str tc pe ins os tc brd pvc jkt cm product description rs 485 2 pair 24awg 7x32 tinned copper pe insulation overall beldfoil tinned copper braid 90 shield pvc outer jacket cm. This cable commonly referred to as category 5 cable is defined by the eia tia ansi 568 specification. The standard is jointly published by the telecommunications industry association and electronic industries alliance tia eia. From power limited tray cable pltc and plenum cmp rated cable to low smoke zero halogen cable you get the ideal solution for your automation network.

Modbus cable interface quickly and easily with most existing plant control architectures by using belden cabling for modbus. The extremely high volume of category 5 cable used makes it widely available and very inexpensive often less than half the price of specialty rs 422 485 cabling. That is why rs485 is currently a widely used communication interface in data acquisition and control applications where multiple nodes communicate with each other. As displayed in the rs485 cable pinout the interface has all signals in differential configurations.