Understand user requirements design integrated wiring system

Fully understanding the user needs is the basis of the design of the integrated wiring system. If you can not fully understand the needs of customers, cabling system design has become a source. Designers can fully understand users ' needs through on-site investigation, reading bidding documents, technical exchanges, and answering questions.

The physical link design of wiring system

1, room location to determine

Generally in the Design institute or user has designated the location of the wiring room, wiring room Most of the computer room and the network share, there are some separate settings. In this case, need to check whether the machine room can meet the wiring system requirements. If the user has not clear the room location, you need to be based on the actual situation and the basic requirements of the computer room to determine the location of the room, and communication with users, access to user recognition.

2. Determine the position between the weak shaft and the distribution line

Generally in the Design institute or the user has specified the weak shaft and distribution line between the physical location. In this case, you need to see if the wiring can meet the requirements of cabling system. If the user has not clearly assigned to the location of the line, you need to be based on the actual situation and the basic requirements of the computer room to determine the location of the computer room, and communication with users to win user recognition. The position and quantity between the shaft and the distribution line will directly affect the project cost, if the original design is found unreasonable (this often occurs), please communicate with the user and the Design institute directly, request to make the designing change. ---http://bianceng.cn (computer science)

3, point table statistics

It is necessary to determine the point bitmap, which is necessary for calculating the material manifest. To detail the number and distribution of data nodes, voice nodes, fiber to desktop nodes. Made into a detailed dot statistics table.

4. Routing Design

In the project implementation, the route is a very important link, including the horizontal cable route, the vertical trunk road, the main wiring between the location, distribution line location, room location, cabinet location, building access line location.

Material type: Physical route may use galvanized wire groove, galvanized pipe, PVC pipeline Groove, PVC hose, trapezoidal climbing ladder, on-line aluminum alloy bridge.

Barrier structure: brick walls, concrete walls, floor structure, cut, whether for load-bearing walls, etc., to be treated separately.

Laying way: Dark laying, laying out, hoisting, along the wall, outdoor frame, outdoor pipe tube and so on.

After determining the above situation, make the physical route map (more known as embedded pipeline map), including route path, material type, material quantity, laying method, construction hours, etc. and routing design must consider other routes and fire regulations.

Logical link design of wiring system

1. Selection of copper cable category

including shielding and non-shielding, super 5 and 6 categories, a variety of flame retardant grade applications.

2, the backbone category selection

including cable/copper cable. In the actual design, the speech backbone generally uses 3 type large logarithm cable (25 pair, 50 pair, 100 equivalence). The data backbone can be 4 pairs of twisted pair, 5 class 25 pairs of large logarithm, but the optical cable by the vast majority of projects used. The single mode and multimode optical cable can be used according to the network device type. Determine the number of cable cores according to the user number and bandwidth requirements.

3, Wiring brand selection

Now the market has a lot of wiring brands, quality, price, visibility are different, the choice of reliable quality, reasonable price products are very important.

4, each subsystem wiring material Design selection

The wiring subsystem generally includes the following subsystems: Working area subsystem, horizontal subsystem, management subsystem, vertical subsystem, equipment subsystem, complex subsystem and so on.

Iii. Statistics and quotations

1, Wiring material distribution table

A detailed list of the material models and quantities for each cabling subsystem. At this time you can use the basic knowledge of your wiring design to use Excel form wiring Material Allocation table, the specification of the design form can be easily adjusted, error-prone, this is necessary for an experienced designer. The Material distribution table embodies all your design ideas, as well as the design basis for determining the quantity of materials.

2, wiring data tables

The material model and quantity of each wiring subsystem are categorized to list the most comprehensive wiring data. Use the Excel form to make the standard wiring data tables. The material tables reflect the total amount of material.

3. Project Quotation

According to the material statistics, make the project quotation. Of course, all project quotations should be in line with the customer's investment budget. There are several ways to quote a project:

A: National Industry management Department, Budget mode

Including the Ministry of Information Industry and the Ministry of Construction, generally include direct and indirect costs of two parts. can refer to the quota standard published by Industry department.

B: Material costs and labor costs according to the proportional quotation

For example, the material cost increases according to the purchase cost, then the labor expense increases according to the material expense percentage. This way for the selection of domestic wiring brand may be cheap labor costs, may cause project losses, so should be appropriate to increase the proportion of charges.

C: Material costs and labor costs separate quote

Labor costs are counted according to the points, multiplied by the single point cost.

Four, the design plan volume

1, drawings

Including point bitmap, system diagram, routing diagram and so on. Of course, the cost of drawing is also not a small cost, so do the project when the cost of accounting to take into account.

2. Design plan

According to the above design ideas to write the design text section. Design plan must be in the material distribution table, statistical tables to be prepared after. Otherwise, you will inevitably have to change, to waste time.

3, binding volume of the above design plans, drawings, statistics and quotation table bound into a book. The rest of the work is for the sales staff to follow up the project.