PIPES The pipe networks to implement the various communication facilities are made ofthermoplastic self-extinguishing, halogen-free tubes, with reduced smoke opacity, made ofone of the following materials: rigid insulating material, with smooth interior walls; flexible insulating material, with smooth or wrinkled interior walls; rigid metal with smooth interior walls and exterior walls smooth or corrugated; flexible insulating material, with smooth interior walls. The outside diameters (equivalent to nominal, commercial diameters) of the tubes (dn) are usually the following: 20, 25, 32, 40, 50, 63, 75, 90 110, 125, 160mm. The tubes are placed inside the concrete, about 3 cm in, and are involved in cement mortar ofthe same composition of the plaster. The diameters of the tubes cannot be lower than that indicated in the drawings, so that the threading of the cables is done easily, thus avoiding the use of guides or trailers. The connections between the tubes themselves are made with appropriate plastic fittings and properly bonded with water and acids resistant cellulosic glue. No connections are allowed between different diameter tubes, these should only be made in the appropriate boxes and appropriate devices. Curves may be used, with a material identical to the tubes, where its curvature radius is adapted to the diameter of the conductor. Whenever there is a need to install pipes before concreting, they should have, in addition to the features mentioned above, the mechanical strength to withstand the efforts of concreting. It should therefore be applied pipes with increased resistance to mechanical actions. CABLE TRAY x/XTP, coaxial and fiber optic cables will be installed and properly tied in horizontal cable trays along the corridors and circulation areas. In any situation should be used the power cables tray to install communication cables. Also, it should be guaranteed a physical separation between the paths of telecommunications cables and the power cables to avoid electromagnetic noise issues in the data network. The following table provides a list of distances one must comply to keep the characteristics of the proposed category 6A network.
The pipe networks to implement the various communication facilities are made of
thermoplastic self-extinguishing, halogen-free tubes, with reduced smoke opacity, made of
one of the following materials:
rigid insulating material, with smooth interior walls;
flexible insulating material, with smooth or wrinkled interior walls;
rigid metal with smooth interior walls and exterior walls smooth or corrugated;
flexible insulating material, with smooth interior walls.
The outside diameters (equivalent to nominal, commercial diameters) of the tubes (dn) are
usually the following: 20, 25, 32, 40, 50, 63, 75, 90 110, 125, 160mm.
The tubes are placed inside the concrete, about 3 cm in, and are involved in cement mortar of
the same composition of the plaster. The diameters of the tubes cannot be lower than that
indicated in the drawings, so that the threading of the cables is done easily, thus avoiding theuse of guides or trailers. The connections between the tubes themselves are made with
appropriate plastic fittings and properly bonded with water and acids resistant cellulosic glue.
No connections are allowed between different diameter tubes, these should only be made in
the appropriate boxes and appropriate devices.
Curves may be used, with a material identical to the tubes, where its curvature radius is
adapted to the diameter of the conductor.
Whenever there is a need to install pipes before concreting, they should have, in addition to
the features mentioned above, the mechanical strength to withstand the efforts of concreting.
It should therefore be applied pipes with increased resistance to mechanical actions.
CABLE TRAY
x/XTP, coaxial and fiber optic cables will be installed and properly tied in horizontal cable trays
along the corridors and circulation areas.
In any situation should be used the power cables tray to install communication cables. Also, it
should be guaranteed a physical separation between the paths of telecommunications cables
and the power cables to avoid electromagnetic noise issues in the data network. The following
table provides a list of distances one must comply to keep the characteristics of the proposed
The boxes are designed and constructed to accommodate and protect the equipment that isinstalled in them. They can be made of metal, plastic or be part of the building.
The doors are fitted with locks of a universal type. They are fixed so that they cannot be
removed without the aid of appropriate tool. The hinges are internal and, when closed, the
door does not protrude out.
The boxes should have wooden bottom with a thickness not less than 2 cm, or rails with metal
slider and bolt, to allow the fixing of the structure that supports the modular units and should
be installed so that the doors have a minimum opening angle of 90°.
In order to avoid confusion with boxes for other purposes these boxes will carry a label with a
"TELECOMMUNICATIONS" record. The inner dimensions of these boxes are in the table below.
The placement of these boxes is such so that the top of the box is situated at:
0.5 m from the ceiling, for ceiling heights less than 3.0 meters;
2.5 m from the floor, for ceiling heights greater than 3.0 meters.
The boxes for installing the sockets are designed and constructed to accommodate and protect
the equipment that you will install in them. The enclosure boxes will be made of rigid PVC,
resistant walls, provided with a cover of the same material with IP31 IK07, as a minimum.
The lids of the boxes will be wide enough to cover the boxes with 10mm overlap. The fixing of
the boxes is done by screws or chrome plated brass to ensure protection to the penetration of dust and insects.
In order to avoid confusion with boxes for other purposes these boxes will carry a label with a
"T" record. The interior dimensions of these boxes are in the following table:
I1, I2 and I3 type boxes
RACKS
The racks will accommodate all equipment associated with building local network and, in the
case of the main rack, facilities for communications with the outside. The racks can be floorracks or wall racks and cable entry shall be made, either at the bottom or top of them.
Its working height will be set based on the number of U's used, plus 30% free space. The racks
should also meet the following minimum requirements:
Rack mount 19 ";
Terminals suitable for grounding;
Equipped with category 6A patch panels with RJ45 female for connection of the x / XTP
cables;
The patch panels should support the identification of the RJ45; Have at least six single-phased power outlets;
To have ventilation slots located laterally along the top floor and behind the scenes;
Equipped with ventilation system, glands, pulleys and other necessary equipment for
its proper functioning;
Built of steel plate or aluminum with appropriate anticorrosive treatment;
It should allow the installation of fixed or sliding shelves to allow installation of
equipment that cannot be installed in 19" rack;
Must allow entry of cables without the damaging the insulation;
Should allow access by the front glass door, the rear and laterally by removing the panels;
Addition shall have the following characteristics:
Characteristic impedance of 75 ohms;
Copper center conductor with a diameter equal to 1.13 (RG7) and 1.65 mm (RG11);
Copper shield with 70% coverage (minimum);
PVC outer jacket white or black PE (free from halogens);
External diameter not exceeding 7 mm (RG7) and 10.5 mm (RG11);
RJ45 PLUGS
These must have the following characteristics:
8 contacts RJ45 plug;
Installation in PVC boxes embedded in the wall or bottom rail application;
With identification of links by color coding;
The support should be made of plastic, with cover contact protection, allowing a space
for their identification (labeling).
Each network point indicated on the plans shall consist of a single or double outlet (RJ45adapter module) application or an embedded application protruding box. The application that
supports the module should be tilted in order to promote compliance with the rules regarding
the minimum bend radius allowed for the cable. The material used will be free of halogens.
The connectors are for fiber 9/125 micrometers and are supplied with a protective cap. The
patch's will be supplied pre-assembled and tested, and must present a certificate of
conformity to all the tests they’ve been subjected.
RJ45 PATCH PANELS
The distribution panels shall be equipped with CAT6A connectors, enabling the termination of
all cable sections and allow for standard rack mounting in 19 ".
In order to get the best optimization of the system, should be used modular distribution
panels. These panels must have rear support for the cables that are terminated there, thus
avoiding the mechanical stresses on them caused from its own weight. The panels shall permit
the placing of the same type of connectors suitable for the plug.
The distribution panels to be installed in various racks should be sufficient and necessary for
the operation of the facility and be sized taking into account the horizontal and vertical data
and voice cabling. These panels should allow placement of the same type of modules suitablefor the plug. The choice of a modular solution allows the placing on the same panel of various
types of transmission media such as copper or optical fiber.
