The Model 2089 high speed EIA-574 (RS-232 on a DB-9) to RS-485 interface converter supports async data rates to 115.2 kbps over one or two unconditioned twisted pairs. The Model 2089 passes one control signal in each direction and can handle up to 50 terminal drops in a multipoint polling environment.
Features & Benefits
Fully Conforms to the EIA RS-485 Standard
Data Rates to 115,200 bps
Range Up to 9 Miles (14.5 Km)
No AC Power or Batteries Required
Up to 50 Terminal Drops in a Multipoint Polling Environment
600 Watts of Silicon Avalanche Diode Surge Protection - Standard
