NEC IE-784915-R-EM1 User Manual page 22

<5> Removal of rubber of top cover
After removing the top cover, remove the rubber.
<6> Insert the IE-784000-R-EM + IE-784915-R-EM1 into the 2nd slot and 3rd slot, put the top cover, and replace
the screws.
Power supply switch
22
CHAPTER 2 INSTALLATION PROCEDURE
Figure 2-5. Insertion of IE-784000-R-EM in IE-784000-R
IE-784000-R-EM (2nd slot)
IE-784915-R-EM1 (3rd slot)
IE-784000-R-BK (event trace board) (5th slot)
IE-784000-R-BK (performance board) (4th slot)
Supervisor board (fixed)