WinSystems Debuts ISM-TRM-ISO-IN, ISM-TRM-ISO-OUT Optically Isolated Signal Conditioning Modules

WinSystems ISM-TRM-ISO-IN and ISM-TRM-ISO-OUT optically isolated signal conditioning and termination boards

WinSystems announced the ISM-TRM-ISO-IN and ISM-TRM-ISO-OUT optically isolated signal conditioning and termination boards. The ISM-TRM-ISO-IN features 24 lines of optically isolated and digitally debounced inputs to provide easy connections and signal conditioning from field wiring. The ISM-TRM-ISO-OUT offers 24 lines of optically isolated outputs. The ISM-TRM-ISO-IN is priced at $209 each and the ISM-TRM-ISO-OUT is priced at $149 each. The boards are ideal for OEM embedded computer system designers.

Each input pair of the ISM-TRM-ISO-IN has configuration flexibility to support either an active high or active low signal from 5 to 30 volts. Every input line is optically isolated from the others and from the computer interface circuits. The isolation voltage rating between the input and output of the photocoupler device exceeds 2500V. Then each input line is wired to a contact bounce eliminator. Its purpose is the elimination of extraneous level changes that result when interfacing with mechanical contacts such as from switches or relays. This circuit removes bounce on both the make and break of a contact closure.

Each output line of the ISM-TRM-ISO-OUT is optically isolated from the embedded computer’s digital I/O interface circuit. The isolation voltage rating between the input and output of the photocoupler device exceeds 2500V. Each output has a NPN Darlington transistor pair with an integral clamp diode for switching inductive loads and transient suppression. The collector-emitter voltage can withstand up to 30 volts and each output is capable of sinking 500 mA of current required by most relays.

WinSystems ISM-TRM-ISO-IN Features

  • Small form factor industrial I/O termination board
  • Inputs: 24 optically isolated and debounced inputs
  • Input Voltage: 5-30V AC or DC
  • Isolation: 2500V isolation of signals
  • +5V required, 1 mA typical
  • Industrial operating temperature: -40°C to 85°C
  • Dimensions: 3.6 x 3.8 inches (90 x 96 mm)
  • Weight: 1.8 oz (51g)
  • Custom configurations with optically isolated outputs and/or relays available for OEM-specific applications
  • Ribbon cabling directly compatible with WinSystems’ single board computers (SBC) and individual I/O modules
  • Pluggable quick disconnect terminal block connectors for field wiring
  • RoHS compliant

WinSystems ISM-TRM-ISO-OUT Features

  • Small form factor industrial I/O termination board
  • Outputs: 24 optically isolated outputs
  • Each output is an Open-Collector Darlington driver that can sink 500 mA from a 5-30VD external source
  • Isolation: 2500V isolation of signals
  • +5V required, 250 mA typical
  • Industrial operating temperature: -40°C to 85°C
  • Dimensions: 3.6 x 3.8 inches (90 x 96 mm)
  • Weight: 1.8 oz (51g)
  • Custom configurations with optically isolated outputs and/or relays available for OEM-specific applications
  • Ribbon cabling directly compatible with WinSystems’ single board computers (SBC) and individual I/O modules
  • Pluggable quick disconnect terminal block connectors for field wiring
  • RoHS compliant

More info: WinSystems