Wire-Map Testers: The Wiremap test is used to identify physical errors of the installation; proper pin termination at each end‚ shorts between any two or more wires‚ continuity to the remote end‚ split pairs‚ crossed pairs‚ reversed pairs‚ and any other mis-wiring. It tests four-pair data and voice cable links terminated with standard‚ modular‚ eight-position RJ45 jacks. Shielded ports test both shielded and unshielded cabling. This is essential for just about any network as telephones (voice)
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cables types 6a cabling can do 10 GB over it‚ however 10 Gig switches are expensive. Cable structure UTP 4 pairs of copper cable Number of twists varies per inch N shielding Very easy to work with Most common cable for LAN Cat 3‚ Cat 5‚ Cat 5e‚ Cat 6‚ Cat 7 will be defined in standards later in the course Most susceptible to Electromagnetic Interference (EMI) STP Similar to UTP Pairs shielded Core shielded SCTP Coax Single conducting core FO Central glass core Cladding prevents light loss Single-Mode
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problem with leaving abandoned cable in place in a building? Abandoned cable can really be a fire hazard 5. Why must the twisting in the individual wires be maintained in a UTP cable? When twisting cable it is very important because if it gets un twisted it can cause a lot of crosstalk and other interference. 6. How many wires does a gigabit cable use? It would be 8 wires 7. Is the labeling standard commonly used or not used? It is used about half the time 8. Grounding should be attached to what
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the 568A and 568B termination color code standards? What are the 568A and 568B pinout standards? This is confusing terminology so how are they different? 4. How many conductors or wires are there in a UTP cable? How many pairs? 5. What colors or wire are used on these wires/pairs? 6. What is a punch down tool and how do you use it? The punch down tool used to insert the wires into a jack such as this does what two things to each wire? 7. What is crosstalk and how does it affect performance? 8.
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Time and Distance Overcome “Nothing is innocent”. This phrase could very well have been the headline of the essay written by Eula Biss. However the headline ”Time and Distance Overcome” does the essay well. Eula Biss explains the progress from no communication but physical to a web of telephone wires and how the invention of the telephone served the civilization - or most likely did not. There might be a difference between civilization and civilized. To most people‚ the civilization is associated
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CIS 175 Network Consultation Proposal for DesignIT Kordia Holmes Robert Cross CIS 175 12/18/2014 DesignIT is a graphic arts company that is expanding business and has recently purchased a new building 56’*36’ space for the purpose of housing two full time designers and a receptionist. The new building has four cubicles‚ one office‚ one server room‚ one reception desk‚ and a conference room. DesignIT has already relocated one Web Server (Microsoft IIS Server)‚ one File Server (Microsoft
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The charter school’s CEO has requested your help in updating the network to meet the demands of the building’s faculty members and students. Your job is to interview the key stakeholders and to take action to remedy the issues that they have. Write a two to three page proposal addressing each of the stakeholder concerns. Use the technologies below for the areas of concern. All of the technologies listed below will not be used‚ so be careful with your choices. You must use one of the solutions
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To jail break an iPhone 3g you will need iTunes and access to the internet. The first thing you will need to do is back up everything on your iPhone 3g using iTunes. There are many different ways to jail break. Once you’ll backed up your iPhone 3g you have to restore it. To restore it hold the shift key and click the “Restore” button. iTunes will launch a file dialog for you to select the firmware file. You will need to download the newest firmware (ios 4.0.1). Once your iPhone 3g is updated to firmware
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Lab Exercise 2.03: Recognizing External Connections Is it possible to plug any cable into the wrong connector? If so‚ which one(s)? What do you think would happen if you plugged something into the wrong connector? Answer- Yes‚ the mouse and keyboard connectors. If they plug into the wrong connector‚ the device will not work. DATA-CABLE from printer to the PC (both ends) End 1 (PC) USB End 2 Parallel Port Male or Female: Male End 2 Female Number of Pins: 25 Data cable from the keyboard
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Multimeter- an electronic measuring instrument that combines several measurement functions in one unit. Tone generator-electronic audio acoustics and equipment testing and setup‚ or informational signals‚ commonly associated with a telephone system Pair scanner- used to locate problems in a LAN system Time domain reflectometer - is an electronic instrument used to characterize and locate faults in metallic cables NT1210 Chapter 4 Lab 4.1 review 1. Automatically chooses
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