Interface Glass Fiber-Bus ST <> Profibus

Properties

• RS485 interface with Profibus pinout
• Baud rate up to 1.5 Mbaud
• Electrical isolation to almost any extent between the connected devices
• Noise-immune and secure transmission over a distance of up to 3800 meters per segment
• Extended supply voltage range up to 24V
• Shipped optionally with or without power supply:
  Please order power supplies as separate accessories.
• No re-configuration of transmission parameters required
• Housing suitable for installation on top hat rails

• 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
• 5 year guarantee

Background information:

For data transmission across long distances and/or in extremely interfering environments, we strongly recommend the use of fiber-optic cables. Easily installed connections over relatively short distances up to 100 m are made possible by the use of plastic optical fiber cables, whereas for a distance segment of up to 3800 m, the use of fiber-optic lines is made necessary. The attenuation of the light in fiber-optic lines is considerably lower than that in plastic optical fiber cables.

While, in the past, the installation and preparation of fiber-optic lines was rather difficult, many suppliers now offer a comprehensive service of installation and customizing of cables, due to the fact that fiber-optic technology is now increasingly applied in commercial networks.

Technical data

• Operating mode:
  • RS485 2-wire mode with echo suppression and
  • automatic control of the RS485 transceivers
• Switching time:
  • approx. 1µs for switching from data send to receive
  • (can be changed on request)
• Baud rate:
  • 0..1.5 Mbaud
• Data format:
  • any format
• Transmitted signals:
  • RxD-P/TxD-P, RxD-N/TxD-N
• Supported topologies:
  • Bus and star, but no ring structures
• Cascadability:
  • 5 Adapter @93.75 KBaud, 32 Adapter @19.2 KBaud
• Serial connection:
  • 9-pin SUB-D socket
• Glass fiber connection:
  • ST plug adapter
  • SMA plug adapter on request
• Fiber-optic medium:
  • Duplex multimode fiber-optic cable
  • 50/125um, 62.5/125um
  • 200/230um PCS fibers on request
• Max. distance:
  • 50/125um: typically 3200m, min. 1400m @3dB/km
  • 62.5/125um: typically 3800m, min. 2200m @3.5dB/km
• Optical budget:
  • 50/125um: typically 9.6dB, min. 4.2dB
  • 62.5/125um: typically 13.4dB, min. 8.0dB
• Wavelength:
  • 820 nm
• Galvanic isolation:
  • Isolation voltage min. 1 KV DC between
  • between supply and serial connection
• Power supply:
  • 12..24V DC/AC
• Current consumption:
  • max. 150 mA at 12 V input voltage
• Supply voltage connection:
  • Plug-in screw terminal, 5.08mm spacing
  • Labeled "L+" and "M"
• Ambient temperature:
  • Storage: -40..+70°C
  • Operating in non-rowed installation: 0..+60°C
  • Operating in rowed installation 0..+50°C
• Permissible relative humidity:
  • 0..95% RH (non-condensing)
• Housing:
  • Plastic small housing, 105x75x45mm
• Weight:
  • approx. 100 g
• Scope of delivery:
  • 1x Interface Glass Fiber-Bus ST <> Profibus