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DH485 Communication Interface - Rockwell Automation
literature.rockwellautomation.comChapter 1 11 Product Overview The DH-485 Communication Interface module links host computers with the Allen-Bradley RS-485 Data Highway (DH-485). The module supports the protocol required to act as a node on the DH-485 network, freeing the host computer from this task. Figure 1.1 The DH485 Communication Interface (1770KF3)