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USB to RS232 / RS485 / TTL converter - isolated

Ref. PC70350

USB to RS232 / RS485 / TTL converter - isolated
USB to RS232 / RS485 / TTL converter - isolated
USB to RS232 / RS485 / TTL converter - isolated
USB to RS232 / RS485 / TTL converter - isolated
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This is an industrial USB to RS232/485/TTL isolated converter with original FT232RL inside. It features embedded protection circuits such as power isolation, ADI magnetical isolation, and TVS diode, etc. What's more, the USB TO RS232/485/TTL comes with an aluminium alloy enclosure, make it solid and durable to work.

The USB TO RS232/485/TTL is very easy to use, fully automatic transceiving without delay. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement.

  • Adopt original FT232RL, fast communicating, stable and reliable, better compatibility
  • Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
  • Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
  • Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic
  • Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance
  • Fully automatic transceiver circuit with no delay, ensures the USB port communicates with different interfaces fastly and stably, without interfering each other
  • Onboard TTL serial 3.3V/5V voltage translator, config the TTL level via switch
  • Aluminium alloy enclosure with sand blasting and anodic oxidation, CNC process opening, solid and durable
  • 3 LEDs for indicating the power and transceiver stats
  • High quality USB-B and RS232 connectors, smoothly plug/pull
  • Dimensions: 86.5mm x 71.6mm x 27.4mm
  • Weight G.W: 0.192 g
  • Product type: industrial optically isolated converter
  • Baudrate: 300-921600 bps
  • Host port USB
  • Device port: RS485/RS232/TTL
  • USB:
    • Connector: USB
    • Protection: 200mA self-recovery fuse, isolated output
    • Distance: ~5m
  • RS485:
    • Connector: screw terminal (A+,B-,GND)
    • Direction control: hardware
    • Protection: 600W lightning-proof and surge-suppress, 15KV ESD protection (reserved 120R balancing resistor solder pads)
    • Distance: ~1200m
    • Transmission mode: point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more)
  • RS232:
    • Connector: DB9 male
    • Protection: TVS diode, surge protection, ESD protection
    • Distance: ~15m
    • Transmission mode: point-to-point
    • RXD blue RX indicator, light up when the device ports send data back


    • Operating voltage: 3.3V/5V
    • Connector screw terminal (TXD, RXD, GND)
    • Protection: clamp protection diode, over-voltage/negative-voltage proof, shock resistance
    • Transmission mode: point-to-point
  • LED Indicators:
    • PWR: red power indicator, light up when there is USB connection and voltage is detected
    • TXD: green TX indicator, light up when the USB port sends data
    • RXD: blue RX indicator, light up when the device ports send data back
  • Temperature: -15ºC~70ºC
  • Humidity: 5%RH ~ 95%RH
  • Operating system: Windows 10 / 8.1 / 8 / 7 / XP
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