9 rules for correct cabling of the Modbus RS485 communication systems
Modbus-RTU added to the Cet Open Toolbox – Highfield Tales
RS-485 Cable
Kabel Adaptor Konverter Perangkat Port Serial USB 2.0 Ke RS485 RS 485 DB9 COM Kecepatan Tinggi PL2303 USB2.0 5MBP Kabel 70Cm Dropship|komputer Kabel & Konektor| - AliExpress
USB RS485 kabel adapter dla ACS380 ABB sterownik kabel ABB Oy BCBL 01 RS485 modbus kabel komunikacyjny|Kable i złącza do komputera| - AliExpress
communication - Is CAT5 cable good enough for RS-485 vs "true" RS-485 cable - Electrical Engineering Stack Exchange