EXFO IQS-9100 Optical Switch for IQS-500/600 - Manual (Page 27)

Getting Started with Your Optical Switch
Optical Switch 21
Inserting and Removing Test Modules
3. Cover empty slots with the supplied protective covers.
3a. Slide the top of the protective cover into the upper grooves of the
unit.
3b. Snap the cover into place by pushing the retaining screw knob.
C
AUTION
Pulling out a module by a connector could seriously damage both
the module and connector. Always pull out a module by the
retaining screw knob.
C
AUTION
Failure to reinstall protective covers over empty slots will result in
ventilation problems.