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21. Orientation pictograms (AS1171 circuit boards).
22. Position for customer access control system, behind Plexiglas screen.
23. Nameplate with serial n#.
24. Detection cells (AS 1143 DIRAS circuit boards), Receivers.
25. Detection cells (AS 1142 DIRAS circuit boards), Transmitters.
26. Motherboard (= control logic = CPU).
One per lane, located inside the left railing in direction A .
27. Top cover plate.
28. Finishing plate for post.
29. Function pictograms (AS1174 circuit boards).