Title: Hardware Installation Guide.pdf
The Star Multiplexer topology is capable of eight different downstream directions in RS-485 (2-wire) communications (using Belden 9841, West Penn, or equivalent) or four different downstream directions with RS-485 (4-wire) communications (using Belden 9842, West Penn, or equivalent).Each Leg of the star, in either configuration, has a maximum wire distance of 4000 feet. Each leg supports up to eight (8) hardware RS-485 devices (Input Control Module, Output Control Module, Single Reader Interface Module, or Dual Reader Interface Module) in many configurations.Downstream Device Communication WiringRS-485 2-WIRERS-485 4-WIRETR+8 , 6 , 4 , 2s t r o PY L N O E V E C E RITR+TR-GNDTR-GNDTR+