Product:ABB DSA503-25GE Plenty stock with good price DSA503-25GE abb

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1. Connect the redundant PROFIBUS lines are connected to ports A and B. Port M is to be used for the not redundant PROFIBUS line to the master or one of the slaves. All three PROFIBUS ports, for example A, B and M, have the same 9-pin Sub-D connectors (sockets). The pin assignment is in accordance with
the PROFIBUS standard.
2. If the A/B ports of an RLM 01 module are located at the start or end of a bus segment, two connector plugs with integrated bus terminating resistors must be provided. If the M port resides at the start or end of a PROFIBUS, one connector plug with integrated bus terminating resistors must be provided. It is preferable to use PROFIBUS terminals with an integrated resistor combination that can be turned on and off.

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