What are the recommended characteristics for a Modbus Jbus RS485 / Com / ABT network cable?
The recommended characteristics of the RS485/Modbus cable are: twisted pair with tinned copper braid shielding. Minimum overlap: 65%. Gauge: AWG 24. Characteristic impedance: 120 ohms. Maximum linear resistance: 100 ohms/km. Maximum capacitance between conductors: 60 pF/m. Maximum capacitance between conductors and shielding: 100 pF/m. Maximum length of network cable: 1300 m.
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