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The EX2 daughter card is an expansion card for the LC4. The EX2 provides two, independent, full-duplex serial communications ports and a 24-line bidirectional parallel port.. Opto 22. Opto 22. EX2.
![Opto 22 EX2 Expansion Daughter Card for LC4 Controller [New]](https://cdn.equipt.com/k8wkunz5jb3dsxtr83cad4ukajca)
![Opto 22 EX2 Expansion Daughter Card for LC4 Controller [New]](https://cdn.equipt.com/ycea91qqbwbcgxjgfc1rwi41r5pm)
