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22 Cards in this Set
- Front
- Back
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Administration addresses the needs of premistes served by a single ER. The ER is the only telecommunications space administered but there are no TRs, backbone cabling or OSP cabling systems to administer. |
Class 1 3-17 |
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Administration addresses infrastructure with one or more telecommunication spaces in a single building. |
Class 2 3-17 |
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Administration addresses infrastructure with multiple buildings at a single site (campus environment) |
Class 3 3-17 |
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Administration addresses infrastruscture with multiple sites or campusses. |
Class 4 3-17 |
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Demarcation point (AP/SP central office connections) |
Orange 3-18 |
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Network connections (Network, auxiliary equipment) |
Green 3-18 |
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Common equipment (connections to PBX, mainframe computer, LAN, multiplexer) |
Purple 3-18 |
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First-level backbone (termination of building backbone cable connecting MC (CD) to ICs (FDs) |
White 3-18 |
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Second-level backbone (termination of building backbone cable connecting ICs (BD) to HCs (FCs) |
Gray 3-18 |
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Horizontal Cable (horizontal connections to telecommunications outlet/connectors, formerly referred to as "station calbe") |
Blue 3-18 |
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Interbuilding backbone (campus cable terminations) |
Brown 3-18 |
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Miscellaneous (auxiliary, alarms, security) |
Yellow 3-18 |
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Reserved for future use (also key telephone) |
Red 3-18 |
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The network switch is placed in the physical, as well as logical, center of the network. |
Star Topology 3-22 |
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Star topology advantages are ______________. |
Cabling is easier to install and maintain. If one device is disabled or isolated from the switch, it is the only device affected. Faults are easier to locate and isloate. It provides a central location for network management. 3-22 |
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Star topology disadvantages are ____________. |
Maybe vulnerable to breakdown as the network is essentially controlled by one device at a central location. Is more expensive. 3-22 |
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A topology that places all of the network devices length of cable, similar to stops on a city but route. |
Bus Topology 3-23 |
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Bus topology advantages are that is is: |
Adaptable to many environments and can be configured to suit most situations. Expandable by adding devices at varous points along the cable. 3-23 |
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Bus topology disadvantages are that: |
It lacks central control-finding a fault is difficult. If the cable is damged or either end of the cable loses its terminationm the entire network will fail. 3-23 |
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A topology that places all of the network devices in a circle. |
Ring Topology 3-24 |
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The advantage of ring topology is that there is _______________. |
no reliance on a central dvice; all messages pass through all devices. 3-24 |
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Ring topology disadvantages are that: |
Additional network devices can only be connected while the network is inoperative because braking the ring would cause network failure. If any device fails, the entire network is affected. 3-24 |
