990-5783J-001

Connect the Modbus Cables

NOTE: Terminators for Modbus connection is provided in the installation kit 0H-9101.

Front View of the I/O Cabinet in Top Cable Entry Systems

Front View of the I/O Cabinet in Bottom Cable Entry Systems

  1. Route the cables as shown on the illustrations.
  2. Connect the Modbus cables. Use either 2-wire or 4-wire connection. Shield the cables as shown.
    NOTE: Shielded cables must be used for Modbus connections. The shield connection to the ground must be as short as possible (ideally below 1 cm). All Modbus signal cables shall be double insulated/jacket cable and minimum rated for 30 VDC.

    2-Wire Connection with One UPS

    Example: 2-Wire Connection with Two UPSs

    Example: 4-Wire Connection with One UPS

    Example: 4-Wire Connection with Two UPSs

  3. Set the Modbus dip switches to match your installation.
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