Nortel Passport 15000 Hardware Installation And Maintenance page 466

466 Chapter 17 Hardware procedures
Procedure steps
241-1501-240 5.2S2
1 At the front or rear of the NEBS 2000 frame or equivalent, locate where
the top mounting holes of the fiber unit are to be on the 2 frame uprights.
Count holes from the top or bottom (whichever is shorter) of the left and
right uprights to ensure that a level installation. Mark the holes.
2 Unpack the fiber management unit from the container labelled NTHW50.
3 Hold the fiber unit so that the drawers face you and are closed, and the
labels on the drawers read the normal way.
4 Position the fiber unit between the uprights, and align the 2 top holes of
the mounting ears with the marked holes on the uprights.
5 While a helper holds the unit in position, thread a thread-forming 10-mm
(3/8-in.) hex-head screw through the top left and right mounting holes.
Leave the screws almost seated.
When installing the fiber unit in a 21-inch (53.34-cm) wide mounting
apparatus (that is, in other than a NEBS 2000 frame), you will likely need
to add mounting screws of a different size.
6 Align the bottom mounting-ear holes of the fiber unit with the holes on the
uprights.
7 Add the remaining 2 screws in the lowest left and right mounting holes.
Use a middle mounting hole only if the nearest corner hole strips.
8 Tighten all screws to snug plus a 1/4 turn.