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ECP Electrical Supply


GE Multilin
Factory Authorized Distributor


GE Multilin Authorized Distributor ECP Electrical Supply Houston, TX GE Multilin 469 Motor Protection System 369 Motor Management Relay 269 Plus Motor Protection System GE Multilin 239 Motor Management Relay SPM Synchronous Motor Protection System 735/737 Feeder Protection System GE Multilin 750/760 Feeder Protection System F485 Serial Converter PQM II Power Quality Metering System GE Multilin 745 Transformer Protection System

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Reference Material




GE Multilin F485 Serial Communication Converter


GE Multilin 469 Motor Protection System

F485 Communication Converter - Isolated RS232 to RS485 to fiber optic converter


The F485 is a self-contained device for converting between RS232, RS485 and fiber optic signals. The F485 is electrically isolated to improve communications in noisy environments. The converter uses internal switches to select the signal conversion type and communication rates up to 57600 bps. The F485 converter uses the data on the serial ports to determine direction and therefore requires no hardware handshaking signals from the computer. The F485 converter can be powered via the power adapter supplied or by connecting an external 9VAC/VDC source to the power supply terminals located at the back of the case. The F485's versatility and simple design makes it ideal for use with all Multilin products in direct and modem communications.


GE Multilin F485 Serial Communication Converter Features


  • Internal switches for selecting signal conversion type
  • Two mounting configurations
  • Versatile, simple design in a self-contained unit
  • Simplifies communications between IEDs, computers and other equipment
  • Additional power supply terminals accept external 9 VAC/VDC source
  • Electrically isolated for reliable communications in noisy environments
  • Direct or modem communications - Up to 57,600 bps communication rate
  • 120 or 220 VAC adapter included

F485 Communication Converter System Applications


  • For conversion between RS232, RS485 and fiber optic signals
  • Fiber optic communication for data transmission in noisy environments


GE Multilin F485 Serial Communication Converter User Interfaces


  • Front panel LEDs for power and communication status
  • RS232, RS485 and fiber optic ports for transmitting and receiving