EXFO FG-750 - Manual (Page 41)

Getting Started with Your Fiber Guardian
Fiber Guardian 27
Installing Your Unit in a Rack
4. Fix the first bracket on the unit with the supplied screws (four screws
per bracket).
5. Repeat steps 3 and 4 with the other bracket, ensuring that you place
the bracket at the exact same position (orientation of the bracket, set
of holes on the bracket and on the unit’s casing).
6. Place the unit in the rack at the desired height.
7. Fix the unit in place using four 10-32 x 1/2 in. screws (four M6 screws
for the ETSI racks).
8. For NEBs installation, use thread-forming type unit mounting screws
that remove any paint or non-conductive coatings to establish a
metal-to-metal contact.
Bracket in inverted position