Cable Wiring Considerations

Source: Internet
Author: User
Tags date socket
The cable system is designed and constructed for the convenience of the landlord, but the landlord and the facility manager usually have no knowledge or measure of the interior of the room to ensure the proper design and installation of the cable system. General contractors and construction managers are generally not experts on telecommunication cables, nor can they take into account the best interests of the landlord and the various groups involved: end-users, information systems departments, designers of cable systems and architects.
The following commandment helps the facility supervisor to ensure that a valid telecommunication cable is installed in their facility.
1. Cable system can not meet the needs of users
In the design phase, the needs of information system users are not fully taken into account, sometimes even worse, by excluding their needs from the collected user needs information at the outset. As a result, users will be in trouble when they need to dial the Internet or log on. Sometimes cable lines connecting telephones and computers to buildings can be guaranteed, yet other building systems or equipment-such as fax machines, clocks, safety and fire alarms, elevators, property sector systems and other things-are often overlooked. If this happens, a detailed checklist of information systems and equipment can be prepared and provided to each head of the department prior to the system design for their participation in the replenishment. In this way, you can avoid the above situation.
This step does not guarantee that the problem will not recur. As the volume of business grows and the nature of the business changes, the use of staff will change, the office location of the staff will be within the department or between departments to adjust, the department will change the layout. Cable facilities should be designed to meet these conditions, and the best way is to plan general cable facilities that apply to all equipment. Unused space should also be paved with cables for future use, and the cable facilities in each cubicle should meet the needs of any user. For example, a workstation setting should meet the needs of a financial person who uses a phone and a PC connected to the local network, as well as a developer who uses a phone, a modem, and a PC that can connect to the Internet and a shared printer.
2. The installed system is out of budget
Cost overruns are very common because the landlord and the facilities supervisor to the weak contractor's work scope is not sufficient. The contractor's valuation is generally based on a fixed, fully defined scope of work, and a variety of specific tasks are included within the scope of the work. If these tasks are not included within the scope of the work, cost overruns will occur when the contractor makes a quotation for these jobs. Failure to identify user requirements at the design stage can also lead to cost overruns. ---computer science (http://bianceng.cn)
The other reasons for the budget overruns and additional labour costs include underestimating the price of products required to meet the needs of the user, the extension of the building's construction period, the structure of the building, and changes to the installation time of other equipment vendors. These or other issues can be avoided by obtaining some advice from people in the cable industry who understand products, selling prices, and installation matters.
3. Building structure is not suitable for the type and number of communication cables to be installed
The pre-built cable structure in the building does not match the actual cabling facilities, which can cause significant delay and cost growth. Architects and electrical engineering companies are usually unfamiliar with the 5 specifications, as well as the design parameters set by the Telecommunications Industry Association and the Electronics Federation (TIA/EIA) for cable structures in buildings such as threading pipes, cable trays and equipment rooms. If the design does not meet the specifications, the result may be that the existing threading tube does not accommodate all the cables that need to be installed, and that the threading tube is added, or that there are too many bent parts of the threaded tube and no connection box, causing difficulty in threading the cable and potentially damaging the cable, or using a cable tray and connection box, It also makes the length of the horizontal cable exceed the requirements of 5 categories.
4. The installed system does not conform to industry 5 specification requirements
Weak contractors often fail to ensure that their technicians are familiar with Tia/eia specifications. As a result, there are a number of problems: exceeding the specification requirements, bending curvature standards for installing extended cables exceeding acceptable levels, incorrect grounding modes, incorrect or inadequate identification, or other problems.
5. Material delivery Delays Project completion
Ignoring material management is also a critical error that affects the completion of projects on time. In addition, faulty material supply will lead to delays in delivery of the product. To avoid these problems, we must understand the product market. After you have obtained the details of the dedicated system equipment and floor box departments, you will be able to study the products, fees and delivery dates.
6. Combination of furniture and floor boxes are not suitable for the socket
The direct cause of this problem is usually the lack of adequate research on equipment and the exact size of the socket on the device. Prior to ordering, should work closely with the equipment vendors, clearly stipulate that these communications products must be well satisfied with the requirements.
7. Too much change in order to cause confusion at completion
When users move into an office building, they often ask for modifications, additions or removal of sockets. As a result, these requests often require the installation of a separate backbone cable. Many of the changes made at the time of completion can be avoided by making the sockets move, add, change deadlines, and resolutely implement the method. Another way to reduce the impact of change orders when completed is to review the contract when the project is halfway through and three-fourths.
8. Weak contractor has not finished the project in time when the equipment maker is installing
If the check-in date and the completion date are confused, the problem will arise. Often, weak contractors rarely engage with facility managers. The lack of such communication prompted weak contractors to work only in accordance with the general contractor's construction plan, which may not include timing signs for the installation of the equipment. The equipment of the building information system, such as telephone, computer, printer and fax machine, must be installed before the user is checked in.
9. The device vendor does not know where to install the equipment
Even if the electric contractor completes the cable installation in time prior to the installation of the equipment vendor, the equipment vendor may not know where to install the equipment if the completed cable facilities do not have complete documentation and are not forwarded to the equipment vendor for use during construction. Each cable outlet in a cubicle should be assigned a unique identifier and replicated in the nearest termination position so that the device can be properly installed on the appropriate workstation. In order to ensure that the current contractor is able to provide these files, it is necessary to ensure that these files are included in the work of the weak contractor in the form of a contract.
10. Incomplete archive file for installation system
This problem may not initially occur, but this problem arises when the information system is to be upgraded. Finding the right socket for a computer or phone is as difficult as finding a needle in the sand. At the end of the cable project, all parties-including the landlord, the facility supervisor, the project management personnel, the cable system Designer, the information system person in charge and other related personnel, should open a meeting together, examine the construction file and ensure its integrality.

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