Single-axis module MDA90A.. Sizes 2 – 6 (0160 – 1800)
The single-axis module MDA90A.. size 2 - 6 (0160 – 1800) has 2 option card slots:

[1] | Option card slot for multi-encoder card or safety card |
[2] | Option card slot for input/output card |
For the assignment and combinability of the option card slots, see chapter Assignment and combinability of the card slots.