Specifications

Technology Upgrade Communications Room 28 1100-4
1224_01
B. Coordinate with all other Contractors and ensure that the locations of all cable tray and
conduits are correct and will feed the rack system adequately.
3.03 INSTALLATION
A. All racks shall be square to the walls and installed in a straight line.
1. Use only 3/8 inch bolts and connectors when constructing the racks and associated
cable ladder.
2. Install vertical cable ladder to the back of each vertical organizer of each rack. When
multiple racks are side by side, 1 section of vertical cable ladder can serve both
racks.
3. Install the vertical cable ladder in the center of the vertical organizer. This allows
cables to be routed down each side for use by both racks.
4. Install horizontal sections of cable ladder along the top of the rack. Attach the
horizontal sections to the vertical sections as well as the horizontal section of the next
rack.
5. Contact the Engineer prior to final placement of the racks.
6. After approval of the placement of the racks, secure racks to the floor with anchors.
Racks shall be secure after installation.
7. Use 6 inch vertical organizers as spacers for racks. Attach racks to both sides of the
vertical organizer, where multiple racks are required.
8. Install unistrut “L” brackets to the bottom of the vertical cable ladder to secure the
cable ladder to the floor.
9. Each rack shall have an engraved phenolic label. The label shall be self-adhesive,
black with white letters. The label shall be affixed to the front and top of the rack so it
is visible while standing in front of the racks. Label shall correspond with the
designated rack label as shown in the detailed drawings.
10. Install woven ground braids between racks and cable ladder for eventual connection
to the Telecommunications Ground Bar (TGB).
11. Remove paint from rack where ground braid is attached to the rack or cable ladder.
Use star washers for all ground connections.
B. Patch cord organizers shall be installed between all patch panels and electronics.
1. Horizontal organizers shall be used for routing fiber and copper patch cords between
patch panels and electronics.
2. Refer to Rack layouts on detailed drawings for quantity of organizers to provide.
3. Organizers shall be installed side by side where multiple racks are installed.
4. If changes in the rack layout are required, contact the Engineer and get changes
approved prior to installation.
C. Tie wraps shall be used sparingly in the overall installation.
1. Tie wraps shall not be used in the cable tray or above the drop ceiling for support of
cables. All cables shall utilize J-hooks, conduits, cable ladder, or cable tray for
support in the ceiling area.
2. Tie wraps can be used to group cables on the cable ladder of the rack systems.
Group cables in bundles of no more than 24 cables.
3. Trim all tie wraps so that the cut edge is smooth.
D. Power strips shall be installed so that they do not interfere with the cable routing, or the
installation of components into the rack.
1. Modular plug for the outlet strip shall be installed at the bottom of the outlet strip.
2. The outlet strip shall plug into 1 of 2 duplex receptacles installed at the bottom of the
rack. Refer to the detailed drawings for receptacle locations.
3. Coil any extra cord from the outlet strip and tie wrap it to the bottom of the vertical
cable ladder.
4. Securely attach the outlet strips to the back edge of the vertical cable ladder.
5. Electrical outlets are installed by others. Communications Contractor shall be
responsible for connecting power strip to the outlets.
E. Cabinets mounted to the wall shall be securely attached.