e-Book PDF - Universidad de La Punta (ULP)
e-Book PDF - Universidad de La Punta (ULP)
e-Book PDF - Universidad de La Punta (ULP)
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El backbone principal está compuesto <strong>de</strong> treinta y<br />
seis nodos ubicados, estratégicamente, con el objeto<br />
<strong>de</strong> conectar <strong>de</strong>s<strong>de</strong> allí todos los nodos secundarios<br />
y <strong>de</strong> estos últimos los enlaces <strong>de</strong> última milla, los <strong>de</strong><br />
acceso al usuario.<br />
2.2.2 Los Shelter´s <strong>de</strong> la AUI<br />
En cada nodo principal se encuentran los equipos <strong>de</strong><br />
comunicaciones necesarios para que la red funcione.<br />
Los mismos están dispuestos en un shelter.<br />
Un shelter es un cerramiento tipo contenedor que<br />
permite alojar equipos electrónicos o <strong>de</strong> telecomunicaciones,<br />
altamente sensibles, en un ambiente controlado<br />
y apto para el correcto funcionamiento (ver<br />
figura 6).<br />
<strong>La</strong>s principales características <strong>de</strong> los shelters instalados<br />
son:<br />
• Están diseñados para servicio en intemperie.<br />
Figura 6: shelter <strong>de</strong> la AUI./ Figure 6: AUI shelter.<br />
• Permiten alojar y proteger el equipamiento <strong>de</strong><br />
telecomunicaciones contra diversos agentes <strong>de</strong>l<br />
medio ambiente tales como: polvo, salpicaduras<br />
<strong>de</strong> agua, con<strong>de</strong>nsaciones externas, vientos, aire<br />
húmedo, lluvia, etc., según las <strong>de</strong>finiciones <strong>de</strong> la<br />
IEC529 en el cuerpo electrónico IP55 y en el cuerpo<br />
<strong>de</strong> energía IP54 (ver figura 7).<br />
| 27<br />
2.2.1 Backbone IP: The Vertebral Spine<br />
The backbone of the IP net, this is to say the vertebral spine of the IP<br />
net, is constituted by a set of no<strong>de</strong>s and links that cover the most important<br />
cities of San Luis. (fig. 5).<br />
The main backbone is composed by thirty-six no<strong>de</strong>s, strategically<br />
located in or<strong>de</strong>r to connect from there all the secondary no<strong>de</strong>s, and<br />
from here the last mile links, those which the user accesses.<br />
2.2.2 The AUI Shelters<br />
The necessary communication equipment to ensure the operation of<br />
the net are located at each main no<strong>de</strong>. This equipment is set up in a<br />
shelter.<br />
A shelter is an enclosed space similar to a container, which allows the<br />
storage of very sensitive electronic or telecommunication equipment,<br />
in a controlled environment for proper operation.<br />
The main features of the shelters that have been set up are:<br />
• They are <strong>de</strong>signed for operation un<strong>de</strong>r harsh weather conditions.<br />
• They can store and protect telecommunications equipment<br />
against several environmental agents such a dust, water, external<br />
con<strong>de</strong>nsation, wind, moist air, rain, etc., according to the <strong>de</strong>finitions<br />
of the IEC529 in sections IP55 and IP54 (figure 7).