Omron Programmable Terminals NT631C - Manual (Page 277)

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Using an RS-232C/RS-422A Adapter Appendix C
Removal from a DIN Rail
Remove the end plates at right and left of the Adapter and, as shown in the figure below, insert a flat-blade
screwdriver into the rail stopper at the bottom face of the Adapter and pry it free.
Mounting to an Operation Panel
Drill two mounting screw holes in an operation panel with a thickness of at least 2 mm (0.08 inch) and secure
the Adapter with screws.
Note In order to ensure a secure and strong mount, mount the Adapter in an operation panel with a thickness
of at least 2 mm (0.08 inch).
(1.18)
30
21
100
(3.94) 110
(4.33)
Two, M4
Units: mm (inch) (0.83)