Ch08 e

Notas del editor

• #5: It is important to remember that according to ANSI/TIA/EIA standards, cable in commercial installations must be supported. It may not lay directly across the top of a suspended ceiling, although this practice may be acceptable in some residential applications.
• #6: It is important to remember that according to ANSI/TIA/EIA standards, cable in commercial installations must be supported. It may not lay directly across the top of a suspended ceiling, although this practice may be acceptable in some residential applications.
• #7: It is important to remember that according to ANSI/TIA/EIA standards, cable in commercial installations must be supported. It may not lay directly across the top of a suspended ceiling, although this practice may be acceptable in some residential applications.
• #8: It is important to remember that according to ANSI/TIA/EIA standards, cable in commercial installations must be supported. It may not lay directly across the top of a suspended ceiling, although this practice may be acceptable in some residential applications.
• #9: It is important to remember that according to ANSI/TIA/EIA standards, cable in commercial installations must be supported. It may not lay directly across the top of a suspended ceiling, although this practice may be acceptable in some residential applications.
• #10: It is important to remember that according to ANSI/TIA/EIA standards, cable in commercial installations must be supported. It may not lay directly across the top of a suspended ceiling, although this practice may be acceptable in some residential applications.
• #11: It is important to remember that according to ANSI/TIA/EIA standards, cable in commercial installations must be supported. It may not lay directly across the top of a suspended ceiling, although this practice may be acceptable in some residential applications.
• #12: It is important to remember that according to ANSI/TIA/EIA standards, cable in commercial installations must be supported. It may not lay directly across the top of a suspended ceiling, although this practice may be acceptable in some residential applications.
• #13: TIA/EIA-606 clearly defines labeling specifications. To comply with TIA/EIA-606, a labeling tool can create easy-to-read, printed labels. Different types of blank label stock are available for general-purpose, industrial, or die-cut labels.
• #14: TIA/EIA-606 clearly defines labeling specifications. To comply with TIA/EIA-606, a labeling tool can create easy-to-read, printed labels. Different types of blank label stock are available for general-purpose, industrial, or die-cut labels.
• #15: Although common cutting pliers or splicer scissors can be used to cut most category wire, they are not effective for cutting larger cables. A cable cutter should be used for cables that have 25 or more pairs of wires. Hand operated cable cutters can be used for cables up to 100 pair. Since backbone cables can be 900 pair or larger, special saws or hydraulic cutters are used for these
• #16: These tools are particularly useful for those new to cable installation because the cut is clean every time. In addition, they are safer to use since the cutting blade is recessed The reversible blades have a punch and cut function on one side and a punch only function on the other. These tools are spring loaded and adjustable which is particularly helpful when working with wires of varying thicknesses
• #19: These are important in determining existing and potential problems or flaws in a network cabling installation. There are cable testers, cable certifiers, multimeters, voltage sensors, tone and probe sets, wire finders, and metal and wood sensors. If a wire was accidentally mapped to the wrong pin, the cable tester will indicate the wiring mistake. Similarly, it can test for problems with the cable such as shorts or opens. After the cable has been tested for continuity using these cable testers, the cables can then be certified by using certification meters.  
• #20: Meters have an auto test function so all required tests are performed with the touch of a single button. These tests include near-end crosstalk (NEXT), wire map, impedance, length, DC loop resistance, propagation delay, return loss, delay skew, attenuation, and attenuation-to-crosstalk ratio. These meters hold multiple test results in memory. Test results are downloaded to a computer so a test report can be generated and presented to the customer
• #21: Multimeters come with different feature sets depending on the manufacturer and the range of functions or tests they are intended to perform.
• #22: A high voltage AC tester, operating between 90 and 600 volts, is also available. This can even be used to see if an extension cord is plugged in. The plastic tipped tool does not have to come in direct contact with exposed metal wire or terminals to detect voltage
• #23: A tone and probe set includes a probe with an amplifier and speaker to hear the tone. The probe picks up the tone inductively so there is no need to actually touch a wire. The probe is waved like a wand when the tone is heard and then moved in the direction that increases the volume of the tone. Some tone and probe sets can also be used to identify reversed polarity in telephone and network cables, or to detect foreign voltages on the wires
• #24: Caution should be used when using a test set on telephone lines. On-going conversations should never be interrupted. The test set has a monitor position that allows the technician to listen for conversation on the line before attempting to use the line to place a call. Common test sets will only work on ordinary analog telephone lines. Care should be taken not to connect to digital or data lines. It is sometimes necessary to access individual wires inside a telecommunications outlet or jack. The jack adapter, or banjo, is used to provide access to these wires. A common line cord is plugged into the adapters and then into the jack. A technician can then clip onto the individual wires or pairs of wires with a telephone test set
• #25: Caution should be used when using a test set on telephone lines. On-going conversations should never be interrupted. The test set has a monitor position that allows the technician to listen for conversation on the line before attempting to use the line to place a call. Common test sets will only work on ordinary analog telephone lines. Care should be taken not to connect to digital or data lines. It is sometimes necessary to access individual wires inside a telecommunications outlet or jack. The jack adapter, or banjo, is used to provide access to these wires. A common line cord is plugged into the adapters and then into the jack. A technician can then clip onto the individual wires or pairs of wires with a telephone test set
• #26: Caution should be used when using a test set on telephone lines. On-going conversations should never be interrupted. The test set has a monitor position that allows the technician to listen for conversation on the line before attempting to use the line to place a call. Common test sets will only work on ordinary analog telephone lines. Care should be taken not to connect to digital or data lines. It is sometimes necessary to access individual wires inside a telecommunications outlet or jack. The jack adapter, or banjo, is used to provide access to these wires. A common line cord is plugged into the adapters and then into the jack. A technician can then clip onto the individual wires or pairs of wires with a telephone test set
• #27: Caution should be used when using a test set on telephone lines. On-going conversations should never be interrupted. The test set has a monitor position that allows the technician to listen for conversation on the line before attempting to use the line to place a call. Common test sets will only work on ordinary analog telephone lines. Care should be taken not to connect to digital or data lines. It is sometimes necessary to access individual wires inside a telecommunications outlet or jack. The jack adapter, or banjo, is used to provide access to these wires. A common line cord is plugged into the adapters and then into the jack. A technician can then clip onto the individual wires or pairs of wires with a telephone test set
• #29: There are nine categories of information that must be present on an MSDS. These categories are specified in the controlled products regulations and include: Product information - product identifier (name), manufacturer and suppliers' names, addresses, and emergency phone numbers Hazardous ingredients Physical data Fire or explosion data Reactivity data - information on the chemical instability of a product and the substances it may react with Toxicological properties Preventative measures First aid measures Preparation information - author and date of who prepared the MSDS
• #30: There are nine categories of information that must be present on an MSDS. These categories are specified in the controlled products regulations and include: Product information - product identifier (name), manufacturer and suppliers' names, addresses, and emergency phone numbers Hazardous ingredients Physical data Fire or explosion data Reactivity data - information on the chemical instability of a product and the substances it may react with Toxicological properties Preventative measures First aid measures Preparation information - author and date of who prepared the MSDS
• #31: There are nine categories of information that must be present on an MSDS. These categories are specified in the controlled products regulations and include: Product information - product identifier (name), manufacturer and suppliers' names, addresses, and emergency phone numbers Hazardous ingredients Physical data Fire or explosion data Reactivity data - information on the chemical instability of a product and the substances it may react with Toxicological properties Preventative measures First aid measures Preparation information - author and date of who prepared the MSDS
• #32: There are nine categories of information that must be present on an MSDS. These categories are specified in the controlled products regulations and include: Product information - product identifier (name), manufacturer and suppliers' names, addresses, and emergency phone numbers Hazardous ingredients Physical data Fire or explosion data Reactivity data - information on the chemical instability of a product and the substances it may react with Toxicological properties Preventative measures First aid measures Preparation information - author and date of who prepared the MSDS
• #33: There are nine categories of information that must be present on an MSDS. These categories are specified in the controlled products regulations and include: Product information - product identifier (name), manufacturer and suppliers' names, addresses, and emergency phone numbers Hazardous ingredients Physical data Fire or explosion data Reactivity data - information on the chemical instability of a product and the substances it may react with Toxicological properties Preventative measures First aid measures Preparation information - author and date of who prepared the MSDS
• #34: There are nine categories of information that must be present on an MSDS. These categories are specified in the controlled products regulations and include: Product information - product identifier (name), manufacturer and suppliers' names, addresses, and emergency phone numbers Hazardous ingredients Physical data Fire or explosion data Reactivity data - information on the chemical instability of a product and the substances it may react with Toxicological properties Preventative measures First aid measures Preparation information - author and date of who prepared the MSDS
• #35: There are nine categories of information that must be present on an MSDS. These categories are specified in the controlled products regulations and include: Product information - product identifier (name), manufacturer and suppliers' names, addresses, and emergency phone numbers Hazardous ingredients Physical data Fire or explosion data Reactivity data - information on the chemical instability of a product and the substances it may react with Toxicological properties Preventative measures First aid measures Preparation information - author and date of who prepared the MSDS
• #36: There are nine categories of information that must be present on an MSDS. These categories are specified in the controlled products regulations and include: Product information - product identifier (name), manufacturer and suppliers' names, addresses, and emergency phone numbers Hazardous ingredients Physical data Fire or explosion data Reactivity data - information on the chemical instability of a product and the substances it may react with Toxicological properties Preventative measures First aid measures Preparation information - author and date of who prepared the MSDS
• #37: Information can be just as valuable as physical property to many companies. When pulling or terminating cable, an installer may hear conversations about business practices or personnel. When a customer contracts with a cable installation company, that company's employees are expected to not disclose any information that they may learn while at the customer's facilities. A customer's competitor may be able to use such information to its advantage. A cable installation company may terminate an employee who divulges sensitive information of a customer
• #38: Information can be just as valuable as physical property to many companies. When pulling or terminating cable, an installer may hear conversations about business practices or personnel. When a customer contracts with a cable installation company, that company's employees are expected to not disclose any information that they may learn while at the customer's facilities. A customer's competitor may be able to use such information to its advantage. A cable installation company may terminate an employee who divulges sensitive information of a customer
• #39: Information can be just as valuable as physical property to many companies. When pulling or terminating cable, an installer may hear conversations about business practices or personnel. When a customer contracts with a cable installation company, that company's employees are expected to not disclose any information that they may learn while at the customer's facilities. A customer's competitor may be able to use such information to its advantage. A cable installation company may terminate an employee who divulges sensitive information of a customer
• #40: Information can be just as valuable as physical property to many companies. When pulling or terminating cable, an installer may hear conversations about business practices or personnel. When a customer contracts with a cable installation company, that company's employees are expected to not disclose any information that they may learn while at the customer's facilities. A customer's competitor may be able to use such information to its advantage. A cable installation company may terminate an employee who divulges sensitive information of a customer
• #41: Information can be just as valuable as physical property to many companies. When pulling or terminating cable, an installer may hear conversations about business practices or personnel. When a customer contracts with a cable installation company, that company's employees are expected to not disclose any information that they may learn while at the customer's facilities. A customer's competitor may be able to use such information to its advantage. A cable installation company may terminate an employee who divulges sensitive information of a customer