Extension Modules (XT-9100/XP910x or XTM-905/XPx) are submodules that provide various combinations of analog and binary input/output points. They may be mounted next to the DX-9100, DX-9121 or DX-9200 controller on the same DIN rail, or remotely, up to 1200 meters from the controller.
Up to eight submodule combinations can connect to the XT Bus of the DX controller, providing up to 64 additional I/O points. The XT Bus has the same physical characteristics as the Metasys N2 Bus.
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