Cisco ONS 15454 포장 풀기 및 설치 - 페이지 10

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Installation Instructions

Figure 6

Raised floor cutout for CORE and local

Framework Anchoring

To anchor framework to a raised floor, you must know in what earthquake zone the equipment is being

installed. Zones 0–2A have the frames bolted to the raised floor through a u-channel across the bottom

of the floor tile and stringers. Zones 2B–4 have 1/2-inch threaded rods extending through the raised floor

and connected to seismic anchors with coupling nuts. In all zones, standard hold-down parts are used on

top of the floor with threaded rods of varying lengths. Anchors and hold-down material must be

engineered for proper seismic zone.

Seismic Zones 0–2A

To fasten network and unequal flange duct framework to a raised floor:

Place a 1 5/8 x 1 5/8 u-channel (with continuous slot down) under the stringers and use clips to cover

Step 1

the free ends of the u-channel where the threaded rod goes through to prevent it from spreading when

compressed.

In the base of the frame, use the hold-down plate engineered for that frame, threaded rod, nut, washer,

insulating bushing, and hold-down washer.

On the bottom of the u-channel, use the clip, washer, lockwasher, and nut.

Note

The u-channel should not extend more than four inches past the edge of the stringers or it will block

access under the floor.

Unpacking and Installing the Cisco ONS 15454 Four-Shelf and Zero-Shelf Bay Assembly

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