Advantech ADAM-4541 Multi-mode Fibre Optic to RS-232/422/485 Converter


  • Transmission speeds of up to 115.2 kbps
  • Optical fibers enable transmission of 2.5 km (measured with 62.5/125 mm)
  • Half/Full-duplex, bidirectional transmission mode
  • Avoids lightning strikes and EMI/RFI interference
  • Prevents damage from electrostatic discharge
  • Stable and error-free data transmission
  • Automatic internal RS-485 Bus supervision
  • No external flow control signals required for RS-485
  • Transient suppression and over-current protection on RS-422/485 data lines


Advantech's ADAM-4541 can be used as an RS-232/422/485 point-to-point or point-to-multi-point connection for transmitting and converting full/half-duplex signals and their equivalents within a fibre optic environment. Fibre optics transmission offers the benefits of wide bandwidth, immunity to EMI/RFI interference, and secure data transmission. Fibre optics is the perfect solution for applications where the transmission medium must be protected from electrical exposure, lightning, atmospheric conditions or chemical corrosion.


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  • Mounting: Panel
  • Power Input: Unregulated10-30VDC w/power reversal
  • Interface: Fiber Optic to RS-232/422/485
  • Power: 10-30VDC
  • Connectors: 1xplug-in terminal block (#14~22 AWG) (RS-232/422/485) 2x ST fiber connector
  • Temperature: -10 to 70C
  • Serial Type: RS-232/422/485
  • Serial Connector: Terminal Block
  • Fiber Type: Multi-mode
  • Serial Communication
  • Communication Mode: Asynchronous
  • Speed Modes (bps): 1,200; 2,400; 4,800; 9,600; 19.2k; 38.4k; 57.6k; 115.2k and RS232/422 mode (switchable)
  • Transmission Mode: Full/half duplex, bidirectional
  • Environment
  • Operating Temperature: -10 ~ 70°C (14 ~ 158°F)
  • Storage Temperature: -25 ~ 85°C (-13 ~ 185°F)
  • Operating Humidity: 5 ~ 95% RH
  • Fiber Optic Communications
  • Optical Power Budget (Attenuation): 12.5 dB (measured with 62.5/125 µm)
  • Transmission Distance: 2.5 km
  • Transmission Mode: Multi mode (Send and Receive)
  • Wavelength: 820nm

Delivery Information

Orders dispatched from Assured Systems USA will be delivered using FedEx.

Payment Methods & Options

Accepted payment methods for US customers include bank transfer, VISA or Mastercard in USD.

Advantech: Warranty and Service Information

As an official EMEA partner of Advantech, we provide a 2 year warranty on all Advantech products supplied to customers in the EMEA. This includes any products which have been customised by Assured Systems. Optional warranty extensions are also available upon request.

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