OBT - Optical Bus Terminal

Description

Use the advantages of optical data transmission for existing DP devices:
Using the OBT (Optical Bus Terminal), a PROFIBUS station without integrated optical interface is connected to an optical line with PROFIBUS stations.

A connection is made to the RS485 interface of the OBT via an RS485 interface and a connecting cable terminated at both ends. The OBT is integrated into the optical line using two optical interfaces.

Detail

The following optical transmission media can be connected to the OBT:

  • Plastic fiber-optic cables up to an individual segment length of 50 m

  • PCF fiber-optic cables up to an individual segment length of 300 m


Advantages

  • Investment protection by connecting existing devices or an RS485 segment with an electrical interface to the optical PROFIBUS

  • “Socket” for the connection of mobile devices (e.g. programming devices) without interruption in the bus

  • Time is saved thanks to easy and quick installation without the need for special tools