Syngress - Eleventh Hour Network+ Exam N10-004 Study Guide (11 ...
Syngress - Eleventh Hour Network+ Exam N10-004 Study Guide (11 ...
Syngress - Eleventh Hour Network+ Exam N10-004 Study Guide (11 ...
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Cable Management 27<br />
■<br />
■<br />
Use cable ties if you need to bundle the cable.<br />
Determine if plenum-rated cabling is required or not.<br />
CABLE MANAGEMENT<br />
Cable management and termination of cabling runs is important when working<br />
in different network topologies. The following are some characteristics and<br />
components common to many networks:<br />
■<br />
■<br />
Typically a central concentrator acts as a backbone for the entire switched<br />
and routed network.<br />
Wiring closet where termination devices such as a 66 block or a <strong>11</strong>0 block<br />
and patch panel exist.<br />
■ 66 Block cross connects that are used primarily for voice connection,<br />
although they can be used for data.<br />
■ <strong>11</strong>0 Block cross connects that are used primarily with data connections.<br />
EXAM WARNING<br />
Punch down (or impact) tools are handy for working with termination devices. You should<br />
know that the cutting blade and shape of the impact tool is different for 66 block connections<br />
and <strong>11</strong>0 block connections. Make sure you use the appropriate tool tip when<br />
terminating your cables. You should also test the run and any other cables you are<br />
using.<br />
■<br />
Distribution systems are the hierarchical system of cross connections that<br />
lead to a local private branch exchange, central concentrator, or the central<br />
office or elsewhere.<br />
EXAM WARNING<br />
You will use the term cross connect often while working as a technician. For the exam, it’s<br />
important to remember this term. The term is used as a reference to the cable that runs<br />
from one block to another, generally 25-pair cable.<br />
■<br />
■<br />
Demarc is a term used to describe where the provider’s equipment ends<br />
and the private network begins. It is also referred to as the “termination”<br />
point of telecommunications from telephone companies inside a facility<br />
or building. Demarc extension is a common term used to describe cabling<br />
used to connect to a router, switch, or other device from the smart jack.<br />
The smart jack is a term used to describe the box (or case) and internal cards<br />
(and other hardware) where you terminate your router or switching device<br />
to get access to the lease line company’s circuit. For example, you could<br />
connect an RJ-45- or RJ-48-based connector into a T1 smart jack and then<br />
connect it to your router or channel service unit.
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