Siemens SIMATIC NET PROFIBUS manual Installation and Startup

Installation and Startup 5

Note

Use the PROFIBUS OBT only as described in this manual.

Note

Pay particular attention to all warnings and safety–related instructions.

Note

The PROFIBUS OBT must only be operated with a safety extra-low voltage (SELV) complying with IEC 950/ EN 60 950/ VDE 0805 with a maximum of +32 V (typically +24 V). The power source must comply with the regulations of NEC class 2 according to the UL/CSA approval.

Note

Do not look directly into the opening of the optical transmitter diode. The emitted light could injure your eyes.

Danger

!Never connect the PROFIBUS OBT to a power supply of 110 V – 240 V.

Note

Select the installation location so that the climatic limit values listed in the technical specifications can be adhered to.

PROFIBUS Optical Bus Terminal (OBT)	5-1
C79000-G8976-C122-02