If the jumper is calculated according to the optical cable, it is: one jumper is used for each two-core optical cable, and if the coupler is used, the amount of jumper used by the equipment is increased.
3 when doing the project, you need to calculate the number of jumpers.
Question 2: How to calculate the single mode of optical fiber jumper 1? Make sure how many optical cables you have.
2. How many pairs of optical transceivers are used on each route, that is, the number of optical fibers required for each route.
3. Determine how many spare optical fibers you want to keep (it's up to you, you can keep all six cores or none).
4. From the above, you can calculate the total number of optical fibers you use = the number of used optical fibers+the number of spare optical fibers, the welding point = the total number of optical fibers *2, the number of pigtails = the welding point, and the number of jumpers = the number of optical terminals *2+ the spare ones.
That's about it. If you want to know more information, you might as well go to official website of Forest Industry Communication, where there is an article detailing the calculation method of single mode of optical fiber jumper.
Question 3: the calculation of optical fiber jumper can be calculated from the place where it is used. Single-mode fiber jumpers are used for long distances, and multimode fiber jumpers are used for short distances. There are four types of connectors, SC/ST/FC/LC, which can be specially searched as optical fiber jumpers. Introduce it in detail!
Question 4: How to calculate the quantities of pigtails, optical fiber jumpers and couplers? 1. The optical cable can only be used after the connection is completed. Because optical fiber is made of some glass fibers, it is easy to break. Therefore, the main purpose of the optical fiber junction box is to protect the joints at both ends of the optical fiber and connect the bare optical fiber.
Case:
For example, lay an 8-core optical cable between two locations. Then both ends of this optical cable need to be equipped with an optical fiber termination box. The optical fiber junction box can be installed by rack or wall, and can be selected according to the installation position. Generally speaking, rack-mounted machines are installed in standard 19 inch standard cabinets. Tail fiber is used for optical fiber connection. Generally, there is an optical fiber connector at one end and no connector at the other end. Usually, we splice an optical fiber and cut it into two sections to be used as two pigtails. Therefore, an 8-core optical cable search needs 16 pigtails or 8 optical fiber jumpers. The connector of the lead wire should match the coupler. For example, the tail fiber of ST needs a coupler with ST, which is used to connect optical fibers. Generally, one end is connected to the optical fiber connector with fused pigtails, and the other end is connected to the optical fiber interface of the equipment through optical jumpers. The number of couplers is configured according to the number of optical fiber cores at each end, so as long as there are 8 couplers at each end.
2. What is the list item of the pigtail sleeve? You can query it in the list according to the conditions.
3. The number of couplers is configured according to the number of optical fiber cores at each end.
4. The test of optical fiber link system is calculated according to the number of optical fiber cores.
5. If you still don't understand, or can't calculate, it is recommended to find someone to do the calculation. There are companies and private companies, and you can also go to the platform to entrust, and the cost varies.
I. Methods
1, can search for small ants to calculate quantities, and can calculate and budget quantities, with high quality and high efficiency.
2. You can search the budget cost units online, and some units do better.
3. You can go to a third-party platform and entrust others to do it. Pay attention to fraud prevention on the platform. You can find a unit or someone to do it.
Second, the cost budget charging standard
1, and part of the charge is 0.2-0.5% of the cost budget (assuming the project cost is 1 10,000 and the cost is 2000-5000);
2. Professional companies charge, and the factory charge calculated by Xiao Ant is about 0. 1% of the cost budget (assuming the project cost is 1 10,000, and the engineering quantity calculation cost is 1000-2000, depending on the drawings);
3. Some of them are suggested to be charged according to the cost budget quota of each province and city.
Third, the charging standard of engineering quantity calculation
1. The fees charged by general consulting companies are calculated according to the budgeted cost, because the calculation of engineering quantity is one of the most tiring and troublesome tasks in the budget.
2. Some companies charge about 0.05% of the cost budget, depending on the drawings.
Four. suggestion
1. If only the quantities are calculated, it is cost-effective to choose the quantity company.
2. If you want the cost and save money, you can now find a professional quantity company to calculate the engineering quantity, and then let people set the price, so the price is much lower (the second point mentioned above is the most cost-effective).
3. When calculating the quantities, it is necessary to see the engineering CAD drawings clearly and calculate the quantities according to the quota of the engineering position.
Question 5: How to connect optical fiber jumpers? How to calculate the number of optical fiber jumpers in the construction budget? 1 The number of jumpers depends on the equipment. According to the equipment, network and monitoring are different. Each network transceiver corresponds to a jumper. Each pair of video transceivers corresponds to a jumper. If couplers are used for switching, each pair of couplers needs to add a jumper.
If the jumper is calculated according to the optical cable, it is: one jumper is used for each two-core optical cable, and if the coupler is used, the amount of jumper used by the equipment is increased.
3 when doing the project, you need to calculate the number of jumpers.
Question 6: How to calculate12 core optical fiber jumper? 12 core single-mode optical cable is welded at 24 points, with one side 12 core and two sides with 24 cores, that is, cutting 24 pigtails, that is, cutting 12 core in the middle, plus two sides, each side 12 core, that is, 65443. I hope this answer is helpful to you.
Question 7: How to determine the number of fiber jumpers and fiber pigtails? The number of fiber cores is equal to the number of fiber pigtails.
One for each person.
Question 8: I mean how to determine the number of optical fiber distribution frames, how to calculate optical fiber jumpers, how to calculate RJ45 jumpers and how to calculate the number of 24-port distribution frames. Thank you for your five points.
See for yourself, you don't understand if I tell you!
Codeword is too tired!
wenku.baidu/...3
Question 9: How to calculate the overall loss of multimode fiber jumpers generally depends on how much DB will be lost per kilometer. The use distance of multimode optical fiber jumper is generally less than 500 meters. The methods of transmitting signals and searching optical fiber jumpers by using short wave 850nm are introduced in detail.
Question 10: How to calculate the pigtail jumper of junction box 1 and junction box 2 of optical fiber coupler?
2.8 couplers
3. Eight tail fibers
4.8 o'clock welding
Two 5-ridge jumpers