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W&T 65210 ST Fiber-Optic Line Bus - RS485 Interface

W&T 65210 ST Fiber-Optic Line Bus - RS485 Interface

Model: 65210

$218.00

Network bus systems over glass fiber optics

Using multiple glass fiber optic adapters model 65210 a copper-based RS485 master-slave bus can be converted into an optical bus without additional protocols. Transmission is at a rate of up to 1.5 Mbaud and in any data format.

 

Interfaces:

  • 1 x RS485
    • 9-pin Sub-D plug
    • 2- and 4-wire operation
  • 2 x Multi-mode glass fiber optics
    • ST connector

Management and connectivity:

  • No re-configuration of transmission parameters required
  • Transmission of two data channels
  • Noise-immune transmission over a distance of up to 3800 meters per segment
  • Galvanic isolation up to nearly any value between the connected devices

Power supply:

  • External
    • 12V-24V AC/DC via plug-in screw terminal
    • Galvanically isolated power connection

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance per EN 61000-6-2
    • Low noise emission per EN 55032:2015 + A1 Cl. B, EN 61000-3-2 & EN 61000-3-3

 

Schematic diagram of an optical bus system for RS485 devices:

Connections and displays:

  • Serial port:
    • RS485 interface
    • 9-pin SUB-D adapter
  • Glass fiber optics port:
    • ST plug adapter
    • SMA plug adapter on request
  • Operating modes:
    • 4-wire with automatic control
    • 2-wire with automatic control
  • Switching time:
    • approx. 10µs for changing from data sending to receiving for RS485 automatic control (can be modified on request)
  • Baud rate:
    • 0..1.5Mbaud
  • Data format:
    • any format
  • Supported topologies:
    • Bus and star, but no ring structures
  • Supported signals:
    • RxD, TxD
  • Cascadability:
    • 5 adapters @115Kbaud, 32 adapters @19.2Kbaud
  • Fiber-optic medium:
    • Multi-mode fiber 50/125μm, 62.5/125μm
  • Wavelength:
    • 820nm
  • Optical budget:
    • 50/125µm: typically 9.6dB, min. 4.2dB
    • 62.5/125µm: typically 13.4dB, min. 8.0dB
  • Maximum distance:
    • 50/125µm: typically 3200m, min. 1400m @3dB/km
    • 62.5/125µm: typically 3800m, min. 2200m @3.5dB/km
  • Galvanic isolation:
    • Isolation voltage min. 1 KV DC between power and the serial port
  • Supply voltage:
    • 12..24V AC/DC
  • Current consumption:
    • typ. 80mA @12V DC, 40mA @24V DC
  • Supply connection:
    • Plug-in screw terminal, 5.08mm spacing
    • Labeled "L+" and "M"
  • Displays:
    • 1x LED Data
    • 1x LED Power

Housing and other data:

  • Housing:
    • Plastic housing for top hat rail installation
    • 105 x 45 x 75mm (L x W x H)
  • Enclosure rating:
    • IP20
  • Weight:
    • approx. 100g
  • Ambient temperature:
    • Storage: -40..+70°C
    • Operating in non-rowed installation: 0..+60°C
    • Operating in rowed installation 0..+50°C
  • Permissible relative humidity:
    • 5..95% RH (non-condensing)
  • Life expectancy:
    • > 25 years at 25°C ambient temperature
  • Scope of delivery:
    • ST fiber-optic line bus <> RS485 interface
    • Please order power supplies separately as accessories

 

5 year guarantee


Click here for manual: Link

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