24 core triple play fiber distribution boxes, 24 sub-fiber optical fiber core triple play box, 24 core triple play fiber enclosures, fiber optic corridor Box 24 core triple play, triple play fiber core 24 splitter box, 24 core triple play fiber optic distribution box, 24 core triple play fiber straight melting tank, 24 core triple play fiber splicing box, 24 core triple play fiber optic network box Model: 24 cores, 32 cores , 48 core, 72-core, 96-core, 144 core specifications: 750 * 600 * 600 * 140,700 * 180,700 * 120,600 * 600 * 500 * 120 Material: cold-rolled plate, stainless steel Installation: Wall-mounted, hold pole, wall-mounted, embedded, mosaic, outdoor and indoor use with a waterproof area: Mobile Unicom Railcom Telecom FTTH FTTB FTTX FTTP Cixi City for Wyatt Communication Equipment Co., Ltd. for the telecommunications, mobile, China Unicom, China Railcom, SVA supply ancillary products, 24 core triple play fiber optic distribution boxes Description: 24-core triple play fiber optic distribution boxes namely China Mobile, China Unicom, China Telecom (Sales Hotline: 15336620995, QQ: 474665107) accompany the progress of society , due to the development of business and technology, new product mutual interpenetration case of integration and development. Including spectral sub-fiber box, corridor integrated boxes, fiber boxes, etc. corridor. Suitable for cable and wiring pigtail protective connection, or fiber access network fiber termination point. Also applies to the use of FTTH fiber to the home, it can be installed in the corridor, basement, room and building facades. After splitting the cable can also drop cable wiring box and weld leads, achieve cable features to meet the needs of various transport network project. For the cable and optical communications equipment wiring connection through the wiring box adapter, optical fiber jumper leads signal, the optical wiring function. Suitable for FTTH project using cable to the rear floor, installed in the corridor, basement, room and building facades. You can also dial after opening the cable coiled welding leads and drop cable wiring box by splitting achieve straight-through cable capabilities to meet the needs of traditional transmission network project. 24 core triple play fiber optic distribution boxes technical parameters: Working temperature: -40 ℃ ~ + 60 ℃ Humidity: ≦ 95% (+ 40 ℃) Atmospheric pressure: 70kPa ~ 106 kPa door opening angle: 180 ° grounding drain withstand voltage level: ≥3000V (DC) / 10mA / 1min Insulation resistance: ≥2 × 1020MΩ500V Features: 24-core triple play fiber optic distribution boxes advantages: 1. Body material quality cold-rolled plate (Q235-A ) made box with epoxy electrostatic spray, corrosion resistant, anti-aging; 2. Effective accomplish Mobile, China Unicom, telecommunications triple-play. Space saving construction and construction strength. 3. Take the left and right and up and down the structure structure composite structure design, both sides have a layer of fiber splicing and the right upper optical splitter wiring layer and the lower layer of fiber splicing. 4. consistent form and thickness of the chassis, the construction process to meet any form of connecting 5. part made from ABS plastic material parts; 6. two-tier structure design, the upper wiring layer optical splitter, the lower layer of the fiber splicing; 7. optical splitter module drawer-type module design, with a strong interchangeability and versatility; 8. Using turn plate structure, can be high-density port configurations and spectroscopic facilities. 9. accord (YD / T988-2007 communication cable transfer box requires 24 core triple play fiber optic distribution boxes Application: Suitable for FTTH project using cable to the rear floor, installed in the corridor, basement, room and building facades. After splitting the cable can also be fiber wiring box storage coiled fiber optic cable splicing and households leads to achieve straight-through cable capabilities to meet the needs of traditional transmission network engineering fiber optic cable connector Overview Communications (transmission) links, various cable connector allows two cables under the premise to ensure impedance matching to achieve the best physical connection. If there is no connector, in general engineering construction, connecting cables and cable ends can be twisted fiber optic cable is physically connector cords wrapped around since passed the electromagnetic signal can also ensure smooth links while in optical fiber communication (transmission) link, the connection between the need for flexibility to adapt to different modules, devices and systems by Different optical signal transmission and electrical transmission, can never be directly to the head of the two fibers are twisted together (unless welding, and welding and impossible connectivity flexibility), there must be a capable optical fiber and optical fiber conducted between removable (active) connection device, the optical signal can be transmitted according to the desired channel, in order to ensure the smooth flow of the fiber link, to achieve the intended purpose and requirements to achieve this functionality the device is connected to the optical fiber activities device, hereinafter referred to as fiber optic connector, which is used in the optical system, the largest passive devices. 2 is a structural principle of fiber optic connector end faces of the two optical precision docking, the most important thing is to make the two optical axes Heart aligned so that the light energy emitted optical output can maximize the receiving fiber coupled to go, and effects due to their involvement optical link and to minimize the impact on the system. Various types of fiber optic connectors basic the structure is the same, the majority of fiber optic connectors generally use high precision components (two pins and a coupling pipe three-part) to achieve alignment of the optical fiber connection. This mode is called the alignment precision components aligned mode, is the most common way. This method is an optical fiber penetration and fixed pin, and the pin surface after polishing processing, and alignment of the coupling tube. pins or outer metal assembly metallic material. Pin butt end must be rubbing treatment, and the other end usually bend limiting members to support fiber or soft rope to release the pressure. coupling halves synthetic tube is usually made of ceramic or bronze and other materials The cylindrical member fastened made, generally with a metal or plastic flange for mounting on the connector. To minimize precise alignment of the optical fiber, and coupled to the pin tube precision requirements are very high. Another way is to take the initiative to align aligned active alignment connector assembly for precision low, according to the ordinary low-cost manufacturing process. However, when the assembly requires the use of an optical instrument (microscope, visible light, etc.) Auxiliary adjusted to align the core. In order to obtain low insertion loss and high return loss, also need to use index matching material. 3 performance fiber optic connector performance, first optical performance, in addition to considering fiber optic connectors interchangeability, repeatability, tensile strength, temperature and the number of plug and so on. Since the optical fiber connector is also a loss of the product, it also requires its low price. To some extent, the performance of fiber optic connector affects the reliability and the performance of the entire optical transmission system. (1) optical properties: optical performance requirements for fiber optic connectors, mainly the insertion loss and return loss of these two basic parameters. Insertion loss (Insertion Loss) i.e. the connection loss is a result of the introduction joint link caused effective optical power loss. Causes insertion loss has two aspects: 1, optical fiber tolerances inherent losses. The main manufacturing tolerances by an optical fiber, namely core size, numerical aperture, core / cladding concentricity and refractive index mismatch distribution and other factors produce. 2, the connector assembly process due to inherent loss. It is processed by the connector assembly tolerances that end clearance, axis angle, lateral shift and Fresnel reflection and end machining accuracy and other factors produced. Insertion loss as low as possible, the general requirements should be less than 0.5dB. In a typical cable engineering calculations, the insertion loss of value recorded as 0.5dB. Return Loss (Return Loss, Reflection Loss) refers to the power connector to link the reflected light suppression, is a measure reflected back from the connector and a measure of input power components along the input channel return, the typical value should not be less than 25dB. For optical fiber communication systems, along with the continuous improvement of the system transmission rate, reflecting the impact of the system is also growing, huge reflection from the connector will affect the high-rate laser (switching rate of Gbit / s level) Stability and lead to an increase in the distribution of noise and laser jitter. Especially in CATV systems, higher performance requirements for return loss. So typical return loss only meet the requirements has been unable to meet the actual requirements, but also need to further improve return loss. Studies have shown that, through the end of the butt end of the connector polishing or grinding specialized treatment, the greater the return loss. The practical application of the connector, pin surface through a special polishing process, the return loss can not be less than 45dB. (2) interchangeability, repeatability fiber optic connectors are common passive components, for the same type of fiber optic connectors, can generally be used in any combination, and can be used repeatedly, additional losses are thus generally introduced It should be within a range of less than 0.2dB. (3) Mechanical properties of tensile strength for the good of the optical fiber connector, generally require the tensile strength shall be not less than 90N. Bending performance should be tested at least five connector / cable assembly samples. At 1m away from the connector to the cable 15.0N of force. In the circle radius of the curved shaft 1.25cm 300 cycles. After the test, the additional loss should not exceed 0.2dB. Vibration performance vibration frequency range (10 ~ 55) Hz, the amplitude for the stability test under conditions of 0.75mm. The maximum additional loss after the test shall not exceed 0.2dB. (4) general requirements for the temperature characteristics of the optical fiber connector must be able to work at temperatures of -40oC ~ + 70oC. (5) the frequency of use of fiber-optic plug connector generally can plug more than l000 times, the additional loss of no more than 0.2dB. [1] 4 classified according to different classification criteria, the optical fiber connector may be divided into different categories. 1. According to the different transmission media can be divided into common silicon-based single-mode fiber, multimode connectors, as well as other media such as plastic as the transmission medium of fiber optic connectors. 2. By connector type structure can be divided into: FC, SC, ST, LC, D4, DIN, MU, MT, etc. various types. 3. Press the pin end shapes divided FC, PC, UPC and APC type. FC planar end surface, simple structure, easy to operate, easy to produce, but the fiber end face dust are more sensitive and prone to Fresnel reflection, it is difficult to improve the return loss performance. PC (ie Physical Connection) into a spherical end face, is the use of physical contact with the grinding method, insertion loss and return loss performance comparison with the former have a more substantial increase. When the curvature radius of 20mm, return loss up to 40dB. UPC remains spherical end surface, which is different from the PC spherical radius smaller for 13mm, since the end surface of smaller radius of curvature, the greater the return loss, return loss it larger than the PC type, up to 50dB. APC (ie AnglePC) spherical end surface remains, but the angle between the axis normal to the end face of the optical fiber is 8 degrees, and for spherical grinding and polishing process, its return loss up to 60dB. 4. There are several points by single fiber core, multi-core (eg, MT-RJ) fiber connector points. 5 Development & Outlook As applications continue to expand fiber optic technology, fiber optic networks, high-speed local area network and a local network and other network users has been great development, the need for the maintenance of the measure, transfer, scheduling and other aspects of the proposed optical fiber connector The requirements are also increasing, which have contributed to the development of fiber optic connector connected to surgery. Let me talk about the key elements of the optical fiber connector - plug support sleeve and coupling sleeve. And supporting the coupling pin sleeve Φ2.5mm will be greater development, has been developed as a basis for FC, ST, SC, DIN47255 / 6, MiniBNC, GFS-11 / 13,530 other types of fiber connector, and its technology has been improved, the aim is to improve efforts to reduce insertion loss, maximize return loss, and improve the connector's mechanical endurance (repeated mating performance) and temperature performance. Improvements mainly from two aspects of. The first is the production of materials. Because the ceramic material and the thermal matching quartz glass material, stable physical and chemical properties, high precision machining, mechanical endurance is good, so more and more attention. In the production of precision ceramic sleeve pin coupling sleeve and it has a dominant position. Using more ceramic material is alumina and zirconia (PSZ). Wherein the high hardness of alumina, precision grinding is relatively high, but the grinding equipment requirements are high, and low bending strength, size large, easily broken when hit a hard surface. The zirconia (PSZ) bending strength and fracture strength much higher than aluminum, and whose hardness is small, small particles, susceptible to polishing, but requires advanced processing technology during grinding. In general, the use of zirconia (PSZ) compared with alumina much more reliable. The need to constantly plug, in order to ensure the coupling sleeve has good wear resistance and a certain degree of elasticity, the ideal combination is the production of alumina pin sleeve coupling sleeve with chromium oxide production. Second is to improve the process and the end of the docking mode pin body (casing) butt end to end faces. With the increasing rate of the system, PC (physical contact) type has been gradually replaced by FC (plane contact) type. For PC-type milling processes are constantly improved, artificial polishing is gradually replaced by machine grinding, appeared APC (Advance Physical Contant) technology that is based on the traditional PC grinding and then grinding or silica powder ultra-fine grinding to reduce the butt because fiber optic connector end face of the refractive index mismatch effect on the insertion loss and return loss performance. This mismatch is damaged layer generated by the grinding forces caused. Usually by the PC after grinding, the damaged layer refractive index is about 1.54, higher than the refractive index of the fiber core (1.46), and the end surface of APC through the grinding treatment, the refractive index of about 1.46, a refractive index close to or reach core . According to research, basic Φ2.5mm type pin bushing, using ramps to connect a single-mode optical fiber connector is to improve the return loss performance effective way. Theoretical calculations show that when the slope angle is 8 °, the connector return loss up to 118dB. However, the insertion loss of this connection will have a greater impact, this effect can be produced by a spherical end surface of the fixed curvature (R = (20 ~ 50) mm) is improved. Sumitomo Electric Industries, Ltd. launched the oblique angle of 8 ° fiber optic connector return loss average of up to 66dB, the corresponding average insertion loss of 0.18dB; domestic Ministry of Posts and Development Institute of Solid State Devices inclined 8 ° angle connector Return loss greater than 56dB, the corresponding insertion loss is less than 0.6dB. Besides peripheral fiber optic connector (unit) element. Due to the continuous development of optical applications require fiber optic connectors made of high-performance, low cost, small size, multi-fiber, high mounting density, easy installation. This is where you can have a lot of aspects of the optical fiber connector for external component material, shape, processing, and other fastening methods to be improved can be achieved. An effective way to reduce product cost is series. NTT developed SC fiber optic connector series to include a multi-tube connector (HSC series), the base fiber-optic connectors and a fixed attenuator and the like. Future development trends in fiber optic connector should develop low-cost, high-density, high reliability, functionality and simplify installation and so on. Since the optical fiber connector fiber link applications very much and plays an important role, we believe that the optical fiber connector but will continue with the development of optical network technology to be further developed. Optical interface optical interface is used to connect the physical interface to fiber optic cables. Its principle is to use the light from the light entering the optical sparse medium dense medium which occurred in a total reflection. Usually SC, ST, FC and other types, which was developed by Japanese company NTT. Ferrule Connector FC is the abbreviation of its exterior reinforcing way is to use a metal sleeve, fastening means for the turnbuckle. ST interface is typically used for 10Base-F, SC interface is typically used to 100Base-FX fiber classification from inside Transmissive different light waves, divided into single-mode (conducting long-wavelength laser) and multimode (conducted short-wavelength laser) in two . Single-mode fiber optic cable connection distance up to 10 km from the multi-mode fiber optic cable connection much shorter, is 300 meters or 500 meters (mainly to see the different lasers produce short-wavelength laser light source in general, there are two, one is 62.5 , one is 50). Fiber optic connectors from different parts of the cable, the interface is divided into SC and LC interfaces. SC interface 1GB Interface, (SC = smart card) LC interface 2GB Interface, (LC = Lucent Connector). Analyzing single optical port, multi-mode 1. marked the center wavelength. Center wavelength 850nm multimode, 1310nm or 1550nm single mode. 2. Activate the transmitter optical interface to quickly see whether the transmitter emit red light, if compared with multimode port, or single-mode port. Fiber Category Single-mode fiber and multimode fiber. Fiber single-mode optical fiber core diameter of less than multimode fiber. Multimode fiber center high refractive index glass core diameter in two models: 62.5μm and 50μm. Single-mode fiber core diameter of the central high refractive index glass available in three models: 8μm, 9μm and 10μm. Under the same conditions, the smaller the attenuation fiber diameter is smaller, the farther to the transmission distance. Power Range multimode singlemode port port transmit power than small, GBIC or SFP is directly related to the model, generally between -9.5dBm to -4dBm; range of single-mode optical interface is generally about 0dBm, some of the long distance interfaces will up + 5dBm. Range receiver power multimode port to receive power generally between -20dBm 0dBm; singlemode between -23 dBm to 0dBm. Maximum power is called overload received optical power, received power is called minimum reception sensitivity. Requirements to work on the project received optical power is less than the overload optical power 3-5dBm, greater than receiver sensitivity 3-5dBm. In general, regardless of the single-mode or multi-mode interface to the interface, the actual received power between -5 to -15dBm considered reasonable scope of work. Module are hot-swappable GBIC Giga Bitrate Interface Converter, optical interface using SC or ST type mostly small package SFP GBIC, LC type of optical fiber used. Type singlemode: SM, long-distance singlemode wavelength 1310 LH multimode wavelengths 1310,1550: MM wavelength 850 1300 SX / LH means that you can use multimode or single-mode fiber optic connector "/" indicates the front part of the connector pigtail type "SC" connector is a standard rectangular connectors, engineering plastics, high temperature, and not easy oxidation. Transmission equipment sidelight with SC connector interface is generally "LC" connector and SC connectors are similar in shape, smaller than the SC connectors. "FC" connector is a metal joints, usually in the ODF side using pluggable number of metal joints to be more than plastic. In showing marked pigtail connector, we often can see "FC / PC", "SC / PC" and so on. FC Round threaded connector type (for use on patch panels at most) SC fiber optic connectors on the small square head, connect the device directly SFP module ST Micro PC Snap-round spherical polishing APC was 8 degrees and do micro-spherical grinding Polishing SC Snap-square (using the switch on the router maximum) MT-RJ square, one dual-fiber transceiver (Huawei 8850 on helpful) 2 Fibre Channel base according to ANSI (American National Standards Institute) regulations, Fibre Channel as Some upper layer protocol (ULP dedicated transmission channel, should support IP, SCSI, HIPPI, and other high-level agreements and so on. Fibre Channel is not only in speed, distance and cost advantages are obvious, but just add a Fibre Channel adapter ( HBA) you can use a lot of existing operating systems and software. FC-0 (physical interface, physical interface) is the underlying FC protocol. The physical layer defines the different physical media, transmission distance, signal mechanism standard also defines the addition fiber-coaxial and twisted pair can be used as a transmission medium. This layer basic purpose is to send and receive binary (0,1) signal. FC-0 defines the speed of data transmission, refer to the speed of transmission of valid data, there are 400MB / s, 200MB / s, 100MB / s, if coupled with additional data header, coding rate is 4Gb / s, 2Gb / s, 1Gb / s. FC-1 layer (Trannsmission Protocol, code level) is FC-. layer reinforcement layer, using the underlying functions to achieve send and receive byte or word transfer definition of the encoding and decoding of special characters and character-level error control basic transmission signal, using 8B / 1 OB coding. FC-2 layer (Signaling Protocol, protocol layer) defines the encoding and decoding standards, primitive and transmission words. function is to send and receive frames, frame sequence, the frame and packet switching, etc. That is the use of the FC-1 functions of a transmission a string of data between end provides some rules and mechanisms to transmit information unit .FC-2 layer functions including the definition of several service types, frame format, the sequence repackaging and restructuring, exchange management, address assignment, alias address definition, multicast management. FC-3 layer (Common Services, Service Layer) A node is only one FC-3 layer to the upper node provides public services that take advantage of FC-2 layer functions to achieve. As FC protocol stack layered graph (b) shown. FC-4 (Mapping level) is the protocol mapping layer defines the interface between the FC and the ULP layer. If the upper application layer is the SCSI protocol, FC-4 layer The agreement is the FCP protocol Fibre Channel topology 3 FC protocol defines three topologies (1) point to point topology, the two devices are directly connected, where typically a storage device and a server; advantage is cost Low and high performance; the disadvantage is only allowed two devices, limited topology. As shown in point to point topology. .] (2) a ring topology (Arbitrated Loop, FC via one or more hubs, up to 127 devices can be connected advantage is to support more devices; drawback is that limits the transfer rate of data is shown in a ring topology (. 3) optical switching network topology (Fabric, servers and mass storage devices interconnected by a plurality of FC switches, because it uses 24-bit addressing mode can support up to sixteen million sets of equipment; the advantage while maintaining system performance can Support for multiple devices; drawback is the cost increase per port, as shown in Figure 4 Fabric topology Fibre Channel port types FC networks generally consists of three elements: the originating terminal equipment, sink and interconnection equipment which all... devices are used port (Port) as a network connection, a port is the base module .FC Port network is divided into Nx Port, N Port, NL Port, L Port, FL Port, F Port, Fx Port, E Port, as well as Equipment connected to the NL port = arbitration ring;; N = the Fabric ports directly connected devices F port = Fabric ports; FL port = Port Fabric arbitration ring;: B Port port type as shown in FIG graphic note. EC Expansion port for the expansion of a network of ports ((FC switch is connected to the FC switch); G (Generic) port = general-purpose port can be used as a port or E-port F Cixi City for Wyatt Communication Equipment Co., Ltd. specializes in telecommunications, mobile. China Unicom, China Railcom, radio and television supply ancillary products, as follows: Optical Distribution Series (ODF): SC quick connectors, fiber optic splice, fiber seat boxes, fiber panels, optical cable transfer me, fiber corridor boxes, fiber adapter, splice tray, fiber optic jumpers, pigtails, ODF wiring boxes, cable connector box, fiber panels, terminal, fiber distribution unit, fiber distribution frame (cabinet) and other Total with series (MDF): 10 loop security arrangements, 16 loop security arrangements, 25 loop security arrangements, 32-loop test row, loop security arrangements 100, 128 loop testing arrangements, various types of security units, alarm devices, main distribution frame. various types of security units, alarm devices, main distribution frame (cabinet) Collocation series (DDF):. Imitation Siemens Digital Distribution, Imitation NEC Digital Distribution, coaxial connector integrated wiring products: network patch panels, cable management, 110 jumper frame, 5e, Category 6 modules, information panels, card access module, Cologne module junction box, network and communication tools and other communication products. The company has consistently adhered to "quality first, customer first, quality service , abide by the contract's purpose ", by virtue of high-quality products, good reputation, high quality services, products sold. Wholeheartedly with the domestic business win-win cooperation and common development, create brilliant! Integrity goods Wyatt, to long-term cooperation! Sincerely The product is pleasing look forward to your sincere cooperation, promote friendship and look forward to establishing long-term good relationship with you [product] Yue communications service to create brand-name products, enhance their visibility and establish a corporate image, our spirit of "all the pursuit of high quality, customer satisfaction for the purpose of "spirit," the most preferential price, the principle of the most attentive service, the most reliable product quality "to your solemn promise: a commitment to product quality: 1, products manufacturing and testing are quality records and inspection data. 2, the product performance testing, we sincerely invited users to visit the product whole process, all performance checks, was confirmed to be qualified before packing shipments. Second, the product price promise: 1, in order to ensure high reliability and advanced systems were chosen selection of domestic and international high-quality brand-name products. 2, in the same competitive conditions, our company not to reduce product on the basis of technical performance, change the product on the cost of parts, in good faith in the most favorable price to your party. Third, the delivery commitment: Product delivery: as requested by the user, if you have special requirements, be completed ahead of schedule, I may in particular organization of production, installation, and strive to meet customer needs. Fourth, the product Yuet service commitment: 1, the service aim: rapid, decisive, accurate, thoughtful and thorough 2, the service objectives: service quality to win customer satisfaction 3, service efficiency: the warranty period or outside, such as equipment failure, for party at short notice, maintenance personnel within 24 hours to reach the scene and begin repairs. 4, the service principles: product warranty period of twelve months, during the warranty period, the supplier will repair and replacement parts are quality causes damage, damage to parts of the warranty period, providing parts only cost fee, equipment damage caused by human factors from the demand side, the supply-side repair or provide parts at cost price according to plan. In the warranty period, our technical staff less than three times a year visit the user usage survey