Chapter 7: sDIO Module The sDIO expansion module provides 32 optically-isolated digital inputs, 32 optically-isolated outputs, and an IEEE 1394 interface. Figure 7-1. sDIO Module 7.1 Mounting the sDIO Module The following mounting options are available for the sDIO module: l Rack mounting l Panel mounting l Table mounting l Stack mounting NOTE: To maintain compliance with local and national standards, the mounting of the sDIO and all terminations at the sDIO must be performed in accordance with those standards. SmartController EX User’s Guide, 11069-000 Rev. F Page 57 of 92