IAI America S-SEL-E - Manual (Page 204)

Page 199
Chapter 4. Programming
5. BCD Code Signals Input and Output
(1) Circuit
This circuit allows the controller to verify the BCD values input by the external digital switch, and lights the number on
the display unit corresponding to the number displayed on the 7 segment display unit provided separately.
Digital display
Super SEL controller
7 segment display unit
Display unit