CPT-COM - 3.3V TTL to Isolated RS-232/422/485


The CPT-COM is an isolated interface board that converts a 3.3V-TTL level serial communications signals to a fully isolated RS232/RS422/RS485 output.

The board can be powered from the 3.3V-TTL level serial port connector or an external 5.3-25V DC power source.

Technical Specifications

  • On-card facilities include:
    • Link Selectable Power Supply Selection
      • Optional off-card 5.3V - 25V Power Supply
      • Optional on-card +5V isolated supply
    • Link Selectable RS232/RS422/RS485 Operation
    • Link Selectable RS422/RS485 Terminating Resistors
    • Link Selectable RS232 DCE/DTE operation
    • Daisy chain connector option for RS422/RS485
    • DB 9 way Female or IDC 10 way connector for RS-232 Interface
    • Dual connectors for RS485 Daisy Chained connection
    • 1000V Isolation between 3.3V-TTL level signals and RS232/RS422/RS485
    • HCNW-4503 - 3 channel Optocoupler used for Isolation
    • Also available in a V1_2 configuration with a built-in 9V battery interface.
  • Dimensions:
    • 60mm x 51mm (2.36" x 2.01")