N-8640SB IP Door Station Board The N-8640SB is a kit of the assembling parts for the custom-made IP door station. This kit consists of the N-8640DS IP Door Station parts excluding the front panel. You can make the IP door station suitable for applications using this kit product in combination with the operation panel section to be prepared separately. YOU MAY ALSO LIKE np_code{type:tag_slider,id:413532,col:6} read more