JGKY-B4 network integrated wiring training device
With the development of network technology, the comprehensive wiring technology is changing with each passing day. The training device of the network comprehensive wiring system developed by Beijing Jinggong Science and Technology Co., Ltd. consists of 12 analog walls with different functions of metal panels. Each training simulates functional modules such as wall inlets, steel panels, mounting holes, longitudinal grooves, and lateral grooves.
On the surface of the steel panel, there are mounting holes uniformly arranged horizontally and longitudinally on the surface. Nuts are welded on the inside of the steel plate corresponding to the positions of the mounting holes. The diameter of the mounting holes is 5 mm and the spacing between the openings is 60 mm.
A pipe inlet diameter of 20 mm is opened directly above the simulated wall, and the 20 mm PVC pipe is led by the bridge to enter the simulated wall through the pipe inlet hole, and then exit through the upper lateral groove.
All steel has no skeleton structure, and the thickness of the steel plate is all 2mm. The steel panel must be folded at least 2 folds, and the distance between each two nearest folds must be less than 500 mm. The size of the independent wall is 1200 × 2400 × 250mm.
Each training single wall has two symmetrical walls, and each wall is provided with two horizontal and vertical grooves, the groove depth is 50mm, the width is 100mm, and the lower lateral groove is 300mm from the ground. The surface of the steel panel is provided with 60x60 mm mounting holes for installing various conduits, sockets, and trunkings. The training process only requires screw installation to ensure dust-free operation. The exterior of the simulated wall is smooth and beautiful, and the wall mounting screws or rivets are not visible on the surface.
In order to ensure the absolute safety of the product and no danger of overturning, the installation panel at the bottom of the integrated wiring simulation wall must be fixed with an anchor bolt on the ground.
Each independent training wall is equipped with 2 walls, and each wall meets the training of 2-3 students at the same time, and the interval formed by each two walls can meet the training of 4-6 people.
The training content of each group of students is the same.
The training environment realistically reproduces the actual environment of the project site. It can train surface-mounted construction and concealed construction content, including surface-mounted various conduits, sockets, trunking and concealed concealed conduits, sockets, etc., and requires training content Meet the requirements of national regulations. The panel has horizontal and vertical grooves to meet the training content of concealed construction in the wall. For example, there is a horizontal groove at a distance of 30 cm from the ground to install a dark information panel to meet the relevant national standards.
The steel training simulation wall is not an isolated device, but a part of the overall solution. It can not only perform the training operation of the work area and the distribution bridge. Cooperating with electronic wiring devices, building groups and weak current hoistway display devices, it can completely cover the seven major parts of integrated wiring and clearly display the seven major parts of integrated wiring. The channels of each subsystem should be independent of each other for students to understand. Guaranteed more than 5000 training sessions.
The content of the training in this area is the construction part of the integrated wiring system project. It mainly trains various construction operations with the most hands-on part in the integrated wiring project, so that students can master the most basic construction skills.
Module panel installation, crystal head production, PVC pipe fixing, wire trunking installation, various electric drill use, threading leads, cable management and binding, bridge installation, cable identification management, network distribution frame cable management installation, voice wiring Rack installation, network voice hopping technology, cabinet disassembly, fiber terminal box installation, program-controlled switch settings, fiber jumper jumper, and finally complete the installation of a whole link.
Steel analog walls, bridges and accessories, RJ45 modules, RJ45 crystal heads, network and voice jumpers, super five types of modules, panels, PVC pipe grooves and accessories, wire grooves and accessories, cable ties, labels, CAT 5E cables, Optical fibers, large logarithmic cables, network distribution frames, voice distribution frames, fiber optic terminal boxes, various wiring tools, electric drills, etc.
1) Wiring design
2) Measurement installation
3) PVC pipe cutting
4) PVC slot cut
5) PVC pipe laying
6) PVC slot fixing
7) 86 box installation
8) Take the network cable
9) RJ45 crystal head production
10) Module termination
11) Information panel installation
12) Patch panel termination
110 patch panel termination
Wiring comprehensive training unit:
1. 2.45 meters high, can simulate the vertical subsystem, building group subsystem, wiring subsystem, incoming line subsystem, equipment room subsystem, etc. in the integrated wiring system.
2. Shaft simulation device, the thickness is not less than 0.2m, the height is not less than 2.45m, and the width is not less than 0.25m. Able to install bridge structure, vertical steel all-steel structure, simulate the vertical shaft of the building, the vertical height of the vertical shaft runs through the entire device, and simulate the vertical subsystem of integrated wiring. The vertical shaft is required to support the training environment. Students can route cables from the three layers of the simulated vertical shaft to layer.
It can be combined with the integrated wiring simulation wall to form seven major parts of the integrated wiring system.
3. Bridge frame and accessories, 150 × 100 × 1.2mm bridge frame.
4. Telecom incoming box, steel structure, analog telecommunication incoming 1
5, 6U wall-mounted cabinets 3
6, rack and accessories, 9U19 inch standard cabinet 1
7, program-controlled switches, 4 in 16 out 1 set
8, 2 telephones (with hands-free function)
9, fiber terminal box, 12-port ST connector 1
10. Network distribution frame, 4 standard 24-port distribution frames
11, 110 patch panels, 100 pairs, 4
12, cable manager 2
13. Simulate the vertical subsystem to realize fiber optic wiring and twisted-pair bridge wiring. Can be combined with integrated wiring simulation wall to form six major subsystems of integrated wiring, mainly for display purposes
Show Teaching Unit:
1. According to all the exhibits displayed in the display cabinet, say the name, difference and purpose of each exhibit.
2. Understand which devices and equipment are included in an entire link in a twisted pair system.
3. Understand which devices and equipment are included in an entire link in a fiber optic system.
Training content (specific operating requirements):
1. Observe the display cabinet of the integrated wiring twisted pair system and understand the concept of the link.
2. Observe the display cabinet of the integrated wiring fiber optic system and understand the concept of the link
3. Observe common tool display cabinets for general wiring.
4. Observe the display cabinets for common wiring materials.
5. According to the observation, the name of the recognized exhibit should correspond to the real thing. If it is a material with the same function, it will be almost the same.
6. Fill in all the uses of the exhibits in the form in the process record.
1.Copper system display cabinet
Includes: 5 meters of Category 5 copper cable, 5 meters of Category 6 copper cable, 5 meters of water-blocking copper cable, 5 meters of carpet cable; 10 copper cable jumpers; 10 RJ45 modules, 10 RJ11 modules; RJ45 head 10 5 RJ11 heads; 2 dual-port ground bomb sockets; 10 sets of panel + bottom box; 1 24-port RJ45 patch panel; 2 50-back 110 patch panels, 2 100-back 110 patch panels; management 2 wire loops, 1 mark ring; 1 copper cable sample display board, 2 copper cable connection loops.
2.Fiber optic system display cabinet <br /> Includes: 5m outdoor optical cable, 10m indoor optical cable, 20m optical fiber; 2 optical cable fusion boxes, 2 optical cable distribution frames; 5 ST couplers, SC couplers 5 Pcs; 2 ST-ST jumpers, 2 SC-SC jumpers,
2 ST-SC jumpers; 2 meters overhead steel cable, 10 hooks, 1 set of tensioner, 1 set of winder, 4 tensioners, 6 brackets. Overhead steel cable + optical cable engineering simulation example 1 set.
3.Common tools display cabinet
Included contents: 2 RJ45 crimping pliers; 2 RJ11 crimping pliers; 2 RJ45 / RJ11 combined pliers; 1 line sequence tester; 2 wire crimping tools; 5 pairs of wire crimping tools; 1 wire stripper 1 pull wire; 1 fiber optic wire stripper; 1 cable cutter; 1 hammer; 2 screwdrivers; 2 hand saws; 5 hacksaw blades; 1 live wrench; 1 dead wrench; ratchet wrench 1 set; 1 steel tape measure; 1 pipe bender; 5 drill bits; 1 wire tube cutter; 1 level ruler; 1 corner ruler; 1 electrical box.
4.Common accessories, tube slot display cabinet
Includes: 5 sets of 60PVC trunking / female angle / male angle / right angle / plug / tee; 5 sets of 40PVC trunking / female angle / male angle / right angle / plug / tee 5 sets; 20PVC trunking / female angle / 5 sets of male angle / right angle / plug / tee; Φ40PVC wire tube / elbow / connector / tee / tube card 5 sets; Φ20PVC wire tube / elbow / connector / tee / tube card 5 set; 100 steel 1 set of bridges / inner angles / positive angles / right angles / tees; 5 triangular brackets; Φ3 steel cable 5m; 10 Φ6U cards; 50 plastic wires; 10 expansion bolts; 10 M6 screws.
Wiring training unit
Training purpose: To master network wiring skills.
Training items: install network equipment, strengthen training to suppress network modules, and test the module to verify the results.
Network wiring, as a common operation of integrated wiring, is a construction skill that must be mastered in integrated wiring courses. We implement it through our integrated wiring electronic wiring training device. The electronic wiring device is close to the actual project, easy to operate, beautiful in appearance, durable, and can help users to master the network wiring and termination technology. The indicator light visually shows the connection status and wire sequence of the crimp terminal, and can directly judge various fault conditions of the crimp terminal.
After the 8-pin suppression of a module is completed, the on-off and error judgment can be displayed one by one through the indicator light. When the 8-pin pressing is completed, the error can be judged by the flashing indicator when an error such as reverse connection occurs.
Open network racks are easy to operate, beautiful in appearance, and durable, which can help users to master network wiring and termination technology. Installation of the network distribution frame and voice 110 distribution frame used in the practice of the project, operating the network wiring, network termination training content, and forming a comprehensive wiring experiment system with the steel simulation wall used in the construction training, students The installation is completed from the installation of the information panel to the termination of the distribution frame of the open rack to form a permanent link.
Electronic wiring training device
One set of 1.8 meters rack, size 1800 × 600 × 530mm
24 port distribution frames
110 1 patch panel, 2 cable organizers, 4 electronic wire test devices, 1 set of 4U modules, 1 set of electronic jumper test device, 4U modules, 1 information ground plug, 1 power ground plug
Standard all-steel rack structure. The lower part of the rack has 4 low-foot screws on the ground to ensure the equipment is firm and able to withstand the impact of the wire during training.
24-port distribution frame, 110 distribution frame, and cable manager are installed on the rack.
The electronic wiring test device and the electronic jumper test device can be directly fixed on the mounting holes of the rack.
Two information ground plugs with data and voice modules are installed on the rack.
Product function: capable of network wiring, termination, jumper production, testing and training.
It can cooperate with distribution frame, jumper frame and other equipment to conduct multiple and multiple link crimping training, which truly reflects the application of comprehensive wiring engineering technology.
Optical fiber fusion training unit (optical fiber fusion splicer, fusion splicing test bench)
Training purpose: Optical fiber fusion has become a very popular optical fiber connection method in integrated wiring projects. Learning to use an optical fiber fusion splicer will greatly improve the employment competitiveness of students.
Training project: use of optical fiber fusion splicer, introduction of optical fiber fusion splicing principle.
Materials used: optical fiber fusion splicer, optical fiber heat shrinkable tube, optical fiber consumables, and optical fiber fusion experimental table. Through the training in the splicing training area, students master the most widely used fiber connection technology in the backbone network, and have a deeper understanding of the structure of the fiber, and through the splicing and testing of the fiber, they have a deeper understanding of various obstacles to fiber transmission. the elements of.
Optical fiber communication itself has many advantages, but its connection is not as simple as a wire connection. An optical fiber fusion splicer is a machine that fuses optical fibers using the principle of arc discharge.
The main features of the optical fiber fusion splicer are similar: fast, fully automatic fusion splicing, compact, lightweight, color display screen, can observe X, Y optical fiber at the same time, small size, light weight, and provide functions such as storing fusion data, applicable to a wide range of fiber types: , MM, DSF, etc. are all available. Because the optical fiber fusion splicing requires the operation of more sophisticated precision instruments, it is difficult for the students to master the use method after one explanation. Therefore, when it is the turn of each student to operate, the teacher must give them instructions once. However, there may be 30-50 people in one training, and the number of explanations by the instructor may also range from 10-30, which is a lot of work for the teacher. Based on this situation, the company has developed a fusion training table, a display device, a video of the fiber fusion process, fast forward or the next segment. Students can play the video according to their own situation.
1. Splicing training platform
The functional module satisfies the analog fiber permanent link and channel link model, and can achieve multi-link connectivity. It is equipped with a dedicated installation box for fixing and supports functions such as fiber protection and fiber fixing. The function module meets fiber fusion training and provides special environment for fiber fusion To ensure that the equipment is not damaged. Configure anti-static rubber pad. The function module meets the fiber link data transmission performance test. It can test the optical power and attenuation value. It can support FC / SC / ST universal interface. The data generation module supports continuous and pulse signals. The test system supports automatic shutdown function and the display system supports. Backlight function, with wavelength selection switch, to simulate various different wavelength environments, display data can be adjusted absolute and relative values; function module is equipped with 650nm laser generator, output power 1mw, spectral width <5nm, generator can support continuous signal and The switching of pulse signals supports CW and 2Hz. The power of the generator can meet the fiber transmission of 5km. The fiber jumper or the location of the fault point can be found when the red light leaks out. The function module supports the training of common fiber maintenance. The detection function of this kind of optical fiber connector can enlarge the end face of the optical fiber 400 times, and can directly display the flatness and neatness of the end face. It is equipped with a special cleaning kit to meet the requirements of dust-free operation of the optical fiber.
2.Fiber optic splicer
A. Features: Applicable fiber: single-mode, multi-mode quartz fiber, cladding outer diameter 125 ∪ m (standard) single-mode core diameter 4-14 ∪ m, multi-mode core diameter 50, 62.5 ∪ m, fiber cutting length 16 mm (standard ); Standard performance: average splice loss: 0.01dB multimode / 0.02dB single mode (standard shear measurement), typical splicing time is 10 seconds, typical heating time is 30 seconds, return loss is better than 60dB; splicing procedure: 10 sets of factory preset Set single-mode program, 10 groups of user-defined programs, users can set parameters according to the situation; Connection loss storage: 5000 connection results; Heater: Built-in heater, typical heating time is 30 seconds, the fastest heating speed in the world, greatly improving work efficiency ; Screen display: simultaneously display X-axis, Y-axis optical fiber images, display the current date and time, display the current working status; screen size 5 inch LCD; working mode: program selection automatic / manual, continuous operation automatic / manual, heating operation automatic / Manual; environmental conditions: working temperature -10 ~ + 50 ℃, storage temperature -40 ~ + 60 ℃, working humidity <95% RH (non-condensing), working altitude 0 ~ 4000 meters DEEP-type wind cover, connection work can be performed in a strong wind 15m / s; the Power: AC 220V + 15% 50Hz 30W, DC power supply 10 ~ 13V 25W.
Testing Technology Training Unit
Testing technology training area Training purpose: Testing technology is a high-tech technical work in integrated wiring system engineering. The training in this area requires students to fully master the testing technology, international test standard parameters, the use of professional instruments, and various fault lines. Cable judgment, etc.
Training items: the use of certification test instruments, the use of verification test instruments, the understanding of international and domestic test standards, the simulation test of various parameter failures, including optical fibers and twisted pairs
Materials used: professional test instruments, verification test instruments, fiber optic test options, various faulty cables.
In integrated wiring engineering, we find that many types of work, such as wire drawing, crystal heads, and modules, are of ordinary technical content. As long as ordinary workers can operate after simple training, as high-level students, if they use this There is no advantage to competition in the market. However, the network test technology, as the most technical part of the implementation of integrated wiring, must have a solid theoretical foundation and practical experience, and it can be used as the highlight of our college graduate competition.
( 1 ) Near-end crosstalk ( NEXT )
Near-end crosstalk (NEXT) and far-end crosstalk (ELFEXT) tests are used to automatically measure crosstalk at the near and far ends of the cable. Excessive crosstalk can cause excessive transmission errors, data loss, and other problems, resulting in slower network systems.
The cause of the failure may be too much crosstalk between the wire pairs, causing increased interference between the individual wire pairs. One of the fundamental reasons is to destroy the original twisted-pair structure of the twisted pair. The original twisted-pair structure was originally designed to shield high-frequency signals from external leakage to adjacent pairs.
( 2 ) Return loss test <br /> This test is used to measure the ratio of the reflected signal to the transmitted signal strength. Good quality cables have small reflected signals. This indicator also reflects the degree of impedance matching between different components.
There are many reasons for the unqualified return loss. It may be because the cable is pulled too hard, destroying the copper structure of the copper wire, stretching or deforming, and causing the transmission impedance to be discontinuous. It is because when the cable transmits a signal, it encounters a medium with discontinuous impedance, which causes the transmission of the signal in a deformed manner and the return loss is unqualified.