Nortel Passport 15000 Preparation Manual page 113

provides two positions for the drill hole to miss imbedded reinforcing
rods (rebar). The outside end of the ovals is the primary anchoring hole
position, while the inside end is the secondary choice.
Procedure steps
1 Place the footprint template (part number P0890503) on the floor where
the frame is to be anchored or mark a footprint according to the
clearances shown in the figure "NEBS 2000 footprint measurements"
(page 98).
2 Verify there are no obstacles where the frame anchors are to be installed.
For a raised floor with removable panels, remove the panel to view the
surface underneath. For a raised floor without removable panels, stick a
solid-core wire (a "fish tape") through the holes and pivot it against the
lower surface. Move obstacles aside if possible. Otherwise, see
"Checking the floor" (page 104).
3 Measure the minimum clearances of 72 cm (30 in.) of open space from
the edges of the front and 61 cm (24 in.) from the rear of the frame, and
7.5 cm (3 in.) on both sides of the template. The side clearance is the
minimum required when the optional extended cable brackets are present
or to be added onto the side of the frame (NTHR0368 for the left side
facing the front of the frame or NTHR0369 for the right side).
If an adjacent frame is installed closer than this minimum, then the
brackets cannot be added later as an upgrade or an increase in cable
management due to increased module provisioning. The spacer brackets
in kit number NTRU0365 ensure the required minimum space between
the fastened frames. When positioning a second Nortel Networks frame
to join this one, use the same clearance on the second one.
4 If the frame is to have doors added to the front or rear of the frame (or
both), the footprint must be enlarged according to the specifications in
"When adding a door to a NEBS 2000 frame" (page 111).
5 If the frame is to have the optional extended cable management brackets
added (NTR0368 on the left side facing the front, or NTRU0369 on the
right side), add another 7.5 cm (3 in.) to each side that is to have the
brackets.
6 If the frame is to have an optional exterior side panel added, either regular
or extended size, mark another 4.0 cm (1.6 in.) per panel to the side of the
floor clearance.
A side panel cannot be put between joined frames, especially if the
extended cable management brackets are going to be used on the
adjacent sides of the frame. The brackets in spacer kit NTRU0365 allows
Passport 15000, 20000 Site Requirements and Preparation Guide
Chapter 3 Site preparation 113
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