Exam 19: Pstn Network Topology

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The point of ________ is the point at which a long distance carrier connects into the local network.

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interconnection

Most fiber cable is placed at least ten feet underground to ensure that the cable will not be disturbed when a backhoe digs in the area or when the ground pushes up the duct during spring thaw.

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Describe the process of splicing copper cable, and include in your discussion the ways in which cable splicers determine which wires should be spliced to one another.

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The process of splicing copper cable involves connecting two separate cables together by joining their individual wires. Cable splicers typically begin by carefully stripping the insulation from the ends of the cables to expose the individual wires. They then use a wire stripper tool to remove the insulation from the individual wires, being careful not to damage the copper conductors inside.

Once the wires are exposed, cable splicers determine which wires should be spliced to one another by following a few key principles. Firstly, they take into account the color-coding of the wires, as different colors typically correspond to different functions or connections. For example, in a standard Ethernet cable, the wires are typically color-coded according to the TIA/EIA-568-B standard, with specific pairings for different data transmission purposes.

Additionally, cable splicers may use a continuity tester or a multimeter to test the connectivity and integrity of the wires before splicing them together. This ensures that the correct wires are being joined and that the splicing process will result in a reliable connection.

Once the appropriate wires have been identified, cable splicers use a variety of methods to splice them together, such as soldering, crimping, or using wire nuts. Each method has its own advantages and considerations, and the choice of method may depend on the specific application and the requirements for the spliced connection.

Overall, the process of splicing copper cable requires careful attention to detail and a thorough understanding of the wiring and connectivity principles involved. By following established standards and using the appropriate tools and techniques, cable splicers can create strong, reliable splices that meet the requirements of the intended application.

Outside plant cable is categorized as:

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Like a switch, the DLC is able to switch calls.

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The load coil, an inductor placed along the wire path to help extend the distance the voice signal can travel, is really an amplifier.

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Load coils must be removed when which of the following lines are deployed:

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What must be maintained in the ocean in order for circuits to be connected internationally?

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Fiber-optic cable:

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A T1 signal can travel much further than ISDN and HDSL signals can.

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Very few companies use ________ splicing of fiber cable due to the high splice loss, but it can be used as a temporary fix during fiber cuts.

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Amplifiers work equally well on both digital and analog signals.

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Bridged taps do not provide any function and, in fact, add resistance to the line and can cause unbalanced circuits.

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The two types of DLCs now deployed are the integrated DLC and the ________ DLC.

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Which of the following is not a category of terminal box?

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Industry standards dictate that when telephone cable, electric wire, and cable TV cable share the same telephone poles, the electric wire must be placed at, on, or in the ________.

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A fiber ________ refers to the length of fiber between two splice points.

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Obtaining right of way is basically an optional, good-faith measure to show property owners and municipalities that their feelings are being considered.

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The portion of the network controlled by the local telephone company is the ________ side of the network.

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The microwave signal can travel a distance of 40-45 miles before it has to be regenerated.

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