Design
The network runs on a 4-twisted-pair cable of 100Ω 100 MHz CAT5E https://dynamicconnectcable.com/unshielded-cable or a flat cable with RS485 serial port, usually with a RJ-12 connector. A daisy-chain serial network topology is strongly recommended with no stubs. The recommended cable colour-coding is: * Green/White pair = paralleled for GND * Orange/White pair = paralleled for +12V * Blue/White pair = blue for DATA+ and white for DATA- * Brown/White pair = spare or shield if unshielded cable is used.References