Author: Fiber-MART.COM

eShop of Fiber Optic Network, Fiber Cables & Tools

The trend of f25G/50G/100G Technology

10G and 40G technologies have matured and occupied a large market during the past decade. While in recent years, 25G/50G/100G technologies are catching more and more attention and begin to stand out in future network deployments. These emerging Ethernet technologies are not simply designed to set a new higher speed but cater to specific market demands and developments. This post will introduce some key 25G/50G/100G technologies to learn the considerations behind.

25G Technology

Aimed at cloud data centers, 25G standard was officially approved in 2016, several years later than 10G, 40G, 100G standards. And the main advantage of 25G lies in the SerDes (Serializer/Deserializer) technology, which is used in high-speed communications for converting serial data to parallel interfaces and vice versa, minimize the number of I/O pins and interconnects.

Most switches run SerDes with a clock rate of around 10Ghz, supporting a 10Gb transfer rate. In recent years, SerDes technology has advanced to 25GHz. This development results in the differences in efficiency and costs of 10G/40G and 25G deployment. Leveraging 25GHz SerDes lane, 25G supports a single lane at 25Gbps, which is 2.5 times the bandwidth performance of 10G using a 10GHz lane. When upgrading from 10G to 25G, rewiring can be avoided as 25G switches use SFP28 transceivers which are compatible with LC fibers of 10G. Moreover, 25G is capable of providing 4 times the switch port density of 40G which requires 4 10GHz lanes. Thus the migration path 10G-40G-100G is inevitably cost-prohibitive while less scalable and efficient.

50G Technology

25G stimulates the anticipation of higher transmission rates in the industry, thus 50G standard was launched in 2018 with the same architecture as 400G/200G standard to serve as the next high-speed solution for connecting servers and data centers. 50G deployment can reuse the 25G devices in the existing 100G network so as to reduce the cost. For this reason, the cost of 50G can be half of 40G, but the performance may increase by 25%. While the most important technology for achieving the high performance of 50G is PAM4 (four-level pulse amplitude modulation).

50G reaches 53.125 Gbit/s after FEC encoding, which cannot be transmitted over an electrical interface while maintaining signal integrity, thus PAM4 is adopted to map pairs of bits into a single symbol, making an overall baud rate of 26.5625 Gbaud for 50 Gbit/s per lane. PAM4 is widely used in high-speed signal interconnection, offering higher transmission efficiency at a lower cost compared with earlier non-return-to-zero (NRZ). PAM4 at 50 Gbaud provides a path to 100G via a 1*2*50 Gbaud architecture that requires only one single laser but achieves a ten-fold increase in transmission rate from 10G to 100G.

100G Technology

Catering to the demands of high-speed and long-reach transmission, the first 100G standard was approved in 2010 and tremendous changes were made in later years. It seems that 100G is gradually taking place of 40G in data centers due to better standard follow-up, technical solution unification, industrial chain development, especially the advantage of higher transmission rate and longer distance which is attributed to the DWDM (Dense Wave Division Multiplexing) technology it uses.

100G DWDM technology enables high capacity transmission over a single wavelength across longer distances and it is especially used for high-speed optical communications. Coherent CFP/CFP2/CFP4 DWDM optical transceivers are for 100G MAN (Metropolitan Area Network) or DCI (Data Center Interconnection ) up to 80 km or a long-haul link more than 1000 km, transporting multiple 10G/40G/100G services to satisfy the increasing demand for high bandwidths. In addition, using 100G DWDM transponder/muxponder can avoid the redesign of network architecture while achieving transport capability and smooth transition among 10G, 40G, 100G, as it multiplexes multiprotocol and multi-rate services.

Relation Among 25G/50G/100G

25G/50G/100G all have wide applications in cloud data centers now, and integrating them can achieve the 10G-25G-50G-100G network upgrade. While before the emergence of 25G and 50G, the traditional migration path is 10G-40G-100G, which is more costly but less efficient. By contrast, upgrading from 25G to 100G can be a more cost-effective solution. Based on 25G, this migration path can be achieved by 4x25G or 2x50G SerDes lanes leveraging new leaf and spine architectures. It offers higher transmission efficiency and performance, both CAPEX (capital expenditures) and OPEX (operational expenditures) savings through high backward compatibility and reuse of the existing cabling infrastructure. On the whole, the 25G-50G-100G migration path provides a lower cost per unit of bandwidth by fully utilizing switch port capabilities and also lays the foundation for the further upgrade to 200G and 400G. Read this article for more about the comparison of 10G-40G-100G and 10G-25G-100G migration paths: 10G-25G-100G Network Upgrade: An Inevitable Roadmap for Future Data Centers.

Conclusion

These emerging 25G/50G/100G technologies have well adapted to the diverse needs of the market and led the trend of the industry in turn. It is well received that 25G/50G/100G each have their advantages in cost and performance for adopting more advanced technologies compared with 10G and 40G. While the demands never stop, thus the development of technologies will never stop moving forward either. Network managers are always looking for a balance between speed and reuse technology to find a cost-effective solution. Let’s wait and see what will happen in the future.

18 Channel CWDM Mux/Demux for 10G Network

Imagine turning a cottage into a majestic skyscraper without any innovation or construction. This is what Wavelength-Division Multiplexing (WDM) allows with your existing fiber optic network. Without deploying additional optical fiber, WDM network mux multiplexes multiple optical signal on a single optical fiber by using different wavelengths, which greatly relieves fiber exhaustion and extends link capacity. WDM technology comes into two flavors—CWDM and DWDM. In this article, we’re gonna explore building a 10G network on CWDM Mux/Demux.

CWDM Mux/Demux: Save Big With Network Expansion

CWDM Mux/Demux increases fiber capacity in either 4, 8, 16 or 18 channel increments. By increasing the channel spacing between wavelengths on the fiber, CWDM allows for a simple and affordable method of carrying up to 18 channels on a single fiber. CWDM channels each consume 20 nm of space and together use up most of the single-mode operating range. The CWDM wavelengths most commonly used are the eight channels in the 1470 to 1610 nm range. CWDM Mux/Demux allows any protocol to be transported over the link, given it’s at the specific wavelength.

16 Channel vs. 18 Channel CWDM Mux/Demux: Which to Choose?

The capacity of a CWDM network is largely relayed on CWDM Mux/Demux. Generally, the more channels a CWDM Mux/Demux provides, the larger capacity of a CWDM network could have. The channel number of most CWDM Mux/Demuxs ranges from 2 to 18, among which 16 channel and 18 channel CWDM Mux/Demux are more prevalent in use. 16 channel CWDM Mux/Demux and its 18 channel alternative have no difference except that the later obtains two more CWDM channels (CWDM wavelengths), larger capacity and hence more insertion loss. So the choice is not about which is superior than the other, it actually depends on your specific demand and application scenario. Usually a 18 channel CWDM Mux/Demux is recommended for broader network capacity and scalability.

18CH CWDM Mux/Demux Cabling Guide for 10G Network

Build a 10G network with a 18CH CWDM Mux/Demux delivers prominent advantages with reduced cost and improved efficiency. All you need is just 10G switches, 18CH CWDM Mux/Demux modules, 10G CWDM SFP+transceivers (or 10G CWDM XFP, if the switch is with XFP interfaces) and fiber patch cables. The typical architecture of a 10G CWDM network is demonstrated in the picture below. Let’s take a review of the four key elements required for a successful implementation of 10G CWDM network.

18 Channel CWDM Mux/Demux Module

A 18 channel CWDM Mux/Demux utilizes all of the 18 CWDM wavelengths defined by standards, which integrates up to 18 different wavelength signals into a single optical fiber. The 18 CWDM wavelength channels are combined together in a multiplexer so that it can be transported simultaneously over a single dark fiber. fiber-mart.com passive 18-CH CWDM Mux/Demux is equipped with a monitor port for better CWDM network management.

10G SFP+ CWDM Transceiver Module

A wavelength specific optical transceiver (SFP, SFP+, XFP, etc) plugged directly in to the data or storage switch. Up to 18 discrete CWDM wavelengths are available and can all be used as independent traffic channels. Each channel can be any variety of 100/40/10/1G Ethernet. fiber-mart.com also provides strictly tested 10G CWDM transceivers that fully compatible with the mainstream brands on the market. All the 10G CWDM transceivers are tested in real environment to guarantee best-in-breed performance and reliability. The following diagram presents the generic CWDM SFP+ transceivers for 18 CH CWDM Mux/Demux.

LC-LC Fiber Optic Patch Cable

The transceiver modules and CWDM multiplexer ports are labelled with the discrete wavelength channels. And fiber patch cable, usually an LC-LC patch cable is used to bridge the transceiver and the corresponding channel on the CWDM Mux/Demux. The ports on CWDM Mux/Demux module are colored in the diagram to highlight the different colored wavelength channels. LC-LC fiber patch cables are usually yellow. Besides, there are also specially-made fiber patch cables available for demanding application scenario, including bend insensitive fiber patch cable, switchable uniboot fiber patch cable and ultra low loss LC patch cable.

Conclusion

With the help of 18 channel CWDM Mux/Demux, 10G network has become approachable and affordable with less labor-intensified work and deployment costs. Besides, a CWDM system also enables unsurpassed flexibility to get fully prepared for any capacity expansion in the future. fiber-mart.com is one of the featured vendors to provide a complete solution for optical and enterprise network—your vendor of choice for CWDM Mux network, optical transceiver modules, fiber patch cables and other network components.

Brief introduction of DWDM Technology and DWDM System Components

Telecommunications makes wide use of optical techniques in which the carrier wave belongs to the classical optical domain. The wave modulation allows transmission of analog or digital signals up to a few gigahertz (GHz) or gigabits per second (Gbps) on a carrier of very high frequency, typically 186 to 196 THz. In fact, the bitrate can be increased further, using several carrier waves that are propagating without significant interaction on a single fiber. It is obvious that each frequency corresponds to a different wavelength. Dense Wavelength Division Multiplexing (DWDM) is reserved for very close frequency spacing. This blog covers an introduction to DWDM technology and DWDM system components. The operation of each component is discussed individually and the whole structure of a fundamental DWDM system is shown at the end of this blog.

Introduction to DWDM Technology

DWDM technology is an extension of optical networking. DWDM devices (multiplexer, or Mux for short) combine the output from several optical transmitters for transmission across a single optical fiber. At the receiving end, another DWDM device (demultiplexer, or Demux for short) separates the combined optical signals and passes each channel to an optical receiver. Only one optical fiber is used between DWDM devices (per transmission direction). Instead of requiring one optical fiber per transmitter and receiver pair, DWDM allows several optical channels to occupy a single fiber optic cable. As shown below, by adopting high-quality AAWG Gaussian technology, FS DWDM Mux/Demux provides low insertion loss (3.5dB typical), and high reliability. With the upgraded structure, these DWDM multiplexers and demultiplexers can offer easier installation.

A key advantage of DWDM is that it’s protocol and bitrate independent. DWDM-based networks can transmit data in IP, ATM, SONET, SDH and Ethernet. Therefore, DWDM-based networks can carry different types of traffic at different speeds over an optical channel. Voice transmission, email, video and multimedia data are just some examples of services that can be simultaneously transmitted in DWDM systems. DWDM systems have channels at wavelengths spaced with 0.4nm or 0.8nm spacing.

DWDM is a type of Frequency Division Multiplexing (FDM). A fundamental property of light states that individual light waves of different wavelengths may coexist independently within a medium. Lasers are capable of creating pulses of light with a very precise wavelength. Each individual wavelength of light can represent a different channel of information. By combining light pulses of different wavelengths, many channels can be transmitted across a single fiber simultaneously. Fiber optic systems use light signals within the infrared band (1mm to 750nm wavelength) of the electromagnetic spectrum. Frequencies of light in the optical range of the electromagnetic spectrum are usually identified by their wavelength, although frequency (distance between lambdas) provides a more specific identification.

DWDM System Components

A DWDM system generally consists of five components: Optical Transmitters/Receivers, DWDM Mux/DeMux Filters, Optical Add/Drop Multiplexers (OADMs), Optical Amplifiers, Transponders (Wavelength Converters).

Optical Transmitters/Receivers

Transmitters are described as DWDM components since they provide the source signals which are then multiplexed. The characteristics of optical transmitters used in DWDM systems is highly important to system design. Multiple optical transmitters are used as the light sources in a DWDM system. Incoming electrical data bits (0 or 1) trigger the modulation of a light stream (e.g., a flash of light = 1, the absence of light = 0). Lasers create pulses of light. Each light pulse has an exact wavelength (lambda) expressed in nanometers (nm). In an optical-carrier-based system, a stream of digital information is sent to a physical layer device, whose output is a light source (an LED or a laser) that interfaces a fiber optic cable. This device converts the incoming digital signal from electrical (electrons) to optical (photons) form (electrical to optical conversion, E-O). Electrical ones and zeroes trigger a light source that flashes (e.g., light = 1, little or no light =0) light into the core of an optical fiber. E-O conversion is non-traffic affecting. The format of the underlying digital signal is unchanged. Pulses of light propagate across the optical fiber by way of total internal reflection. At the receiving end, another optical sensor (photodiode) detects light pulses and converts the incoming optical signal back to electrical form. A pair of fibers usually connect any two devices (one transmit fiber, one receive fiber).

DWDM systems require very precise wavelengths of light to operate without interchannel distortion or crosstalk. Several individual lasers are typically used to create the individual channels of a DWDM system. Each laser operates at a slightly different wavelength. Modern systems operate with 200, 100, and 50-GHz spacing. Newer systems that support 25-GHz spacing and 12.5-GHz spacing are being investigated. Generally, DWDM transceivers (DWDM SFP, DWDM SFP+, DWDM XFP, etc.) operating at 100 and 50-GHz can be found on the market nowadays.

DWDM Mux/Demux Filters

Multiple wavelengths (all within the 1550 nm band) created by multiple transmitters and operating on different fibers are combined onto one fiber by way of an optical filter (Mux filter). The output signal of an optical multiplexer is referred to as a composite signal. At the receiving end, an optical drop filter (DeMux filter) separates all of the individual wavelengths of the composite signal out to individual fibers. The individual fibers pass the demultiplexed wavelengths to as many optical receivers. Typically, Mux and Demux (transmit and receive) components are contained in a single enclosure. Optical Mux/DeMux devices can be passive. Component signals are multiplexed and demultiplexed optically, not electronically, therefore no external power source is required. The figure below is bidirectional DWDM operation. N light pulses of N different wavelengths carried by N different fibers are combined by a DWDM Mux. The N signals are multiplexed onto a pair of optical fiber. A DWDM Demux receives the composite signal and separates each of the N component signals and passes each to a fiber. The transmitted and receive signal arrows represent client-side equipment. This requires the use of a pair of optical fibers; one for transmit, one for receive.

How to choose a management type and non-management type optical fiber transceiver?

Well-known, optical fiber output device can be used for continuous optical fiber, and for the purpose of long-distance import. Managed type, unmanaged type, optical fiber output device, two types, common type, but what kind of choice is it? Is it a separate ward?

A managed optical fiber projector?

Management type optical fiber output device support telegraph network management, all management type main network transceiver network, ability realization effective area control control. Other ability provided External network monitoring function, failure measurement And function. Controlled optical fiber output device Can be used, can be used for management, intellectual property, or service number, and can be added to the local area network for external safety and protection. Management type optical fiber output device Tono Transceiver single area network management Web interface Tsujimatsu department in the network, Ya Noh Ansou arriving device Centralized management in the desk.

By all means, a managed optical fiber projector?

Opposite new theory, unmanaged optical fiber output device, easy-to-operate network equipment, other tools, immediate service, Noh 许 network equipment, automatic communication. However, the unmanaged optical fiber output device is illegally provided, and the controlled optical fiber output device is homologous and specific. At the time of failure, the cause of the failure is the unmanaged optical fiber output device. Unprecedented, unmanaged optical fiber dispenser, regular meeting equipment DIP function, this function can be realized, a model of twin work, basic arrangement such as auto negotiation.

Management type And non-management type optical fiber output device

Management type And non-management type optical fiber output device, special feature And application environment, no difference in the location of the environment, lower surface general.

Placement function

Under normal circumstances, a managed optical fiber output device, a built-in optical fiber output device, a Web or a simple network management protocol (SNMP) connection, a network management function, a matsuji More specific theory, intuition placement function can be managed by intuition, and can be placed immediately. Rapid rapid service; Intuitive case interface conversion completed network management service arrangement.

Opposite unmanaged optical fiber dispenser, the most important function, the above-mentioned DIP opening function, and the operation model for other devices. Except for the basic layout provided on the front side, the DIP-related unmanaged optical fiber output device switch layout and other functions, such as failure instructions, failure, and so on.

Safety performance

Management type optical fiber output device support network use and possession 3A categorical safety (personalauthorization sum safety service) Can support telnet coming offer safety walkie-talkie. However, it is a non-management type optical fiber output device, and its safety performance is uncontrollable management type optical fiber output device. This is a management-type optical fiber output device for large-scale data centers or enterprise networks.

How to choose a management type And non-management type optical fiber transceiver?

Management type optical fiber output device Most suitable network performance department Optical fiber output device recovery environment, Others The best network performance. Controlled optical fiber output device Can be in the network Arbitrary part Opposite number Standing flow rate progress Complete control.

Unmanaged optical fiber generator for normal use. Managed optical fiber output device Yes, advanced function, comparatively favorable performance, other use ratio unmanaged optical fiber output device. An optical fiber output device that can be used for specific demands.

Conclusion

Exhaustion management type optical fiber output device ratio Unmanaged type optical fiber output device However, there is a need for a single use or management, and an unmanaged optical fiber output device for immediate use or management. A specific optical fiber output device that can be used for specific network demands.

How do you use and Maintenance the optical fiber?

Optical fiber jump line, optical communication area, equipment, connection, delivery, and optical fiber import. Causes, understanding Necessary usage And precautions cannot be taken or a step forward, and the amount of optical fiber imported and the amount of optical fiber used. Main text General optical fiber connection, disconnection method and daily life.

Optical fiber jump line connection disconnection method

Optical fiber jumping line available in various types of equipment Optical fiber connection port network equipment equipment, optical fiber, face plate, transceiver, wave division device, optical fiber output device, etc. An example of optical modules on a desk, a general operation, and a general operation.

Optical fiber connection walking

Separately removed optical module Wako jumping line Two-end connector Upper protective cap, for parallel storage equipment.

General jumping line connector.

Optical fiber optical fiber partial bundle fixed, plastic type and more protective jumping line.

Optical fiber jump line disconnection

An optical module exchange desk end.

Modular jump line Two-end connector Wako imitation interface sorting lid.Notes:

Demand for security equipment, installation, installation, technology, installation, installation, installation, and safety.

Operation Source device Time work Required anti-static hand-held And anti-static hand ring, hereafter light-proof bracelet piece And static electricity damage.

Pre-use must-have optical fiber connector end face cleanliness.

Precautions when using Optical fiber Jumping radius, excessive extension or suppression possible creation wear.

Suspension suspension equipment voluntary suspension or neglect, and unscrupulous suspension of suspension.

Evacuation and exemption equipment Medium wear or transfer jump line, less advanced.

After the installation of the installation, the installation area of ​​Kiyoseki.

Optical fiber jumping method

How to use it like an optical fiber. Appropriate cleanliness and protection signal import -like At the same time, to a certain extent, the service life of Ueya is extended.

Optical fiber optical fiber

How important is the optical fiber jumping line? A certain telegraph giant survey, a connection device, a pollution survey, a network, and a failure. Yuko Kachi, optical fiber once ashed, oil pollution, etc. Exclude this, the main body of the connector, Wako, the outer jar, the productive metal, the grain of the metal, the possible meeting, the erosion of the signal, the wear of the signal, and the loss of the optic fiber. The reason is that the optical fiber is very “vulnerable”, and it is inevitable.

General theory, optical fiber jumping line Qing dynasty main connector. There are two main methods of cleansing, quick-drying cleansing and moist cleansing. Both parties have slight discrimination and can be mixed. Regular dry and clean tools, optical fiber, optical fiber, Kazuichi, and other tools, wet and clean tools, rubbing and wiping sticks, etc.

Reasonable optical fiber

Of course, the condition of use of the optical fiber jumping line, the condition of use, and the stipulation of the head of the neck: This is the landlord’s usual criminal, the most absurd result. It is possible to make a slight change in the image, and it is possible to wear it with the naked eye. Factor. This type of damage is not possible. Direct development, cause of damage, and long-term damage are possible. Evasion exemption step-by-step loss, when this jump line is required to be converted, The minimum bending radius of the optical fiber jumping line, and the narrow space of the high-density optical fiber line.Suitable tools Heavy-duty new design Optical fiber jump line path diameter and above, horizontal line frame, etc.

An optical fiber connector, a wearable end face, and a stabbed skin at the same time. Cause This is a cap that can be used at any time.

What kind of department is the 10G home optical fiber network?

Inevitable demands for corporate networks, home networks, rapid and feasible Ethernet. Arrival 10G or more Internet technology In-commerce regional maturity and widespread use, 10G network department Narimoto already large drop, positive cause, partial household start-up consideration, pre-existing 1G optical fiber home network, but ， 10G optical fiber network. Main text Provided by the general manager, a little useful technique, a typical 10G home optical fiber system plan, a convenient and economical 10G home optical fiber network.

Evaluation

In front of the 10G home network in the department, the most important policy is the progress of the home network. Calculators, stamping desks, and other peripherals? Typological type of mobile equipment demand Demand for wireless WiFi is overwhelming. Demand for Demand copy owned network equipment? Hope for regret, network equipment, equipment, a certain special function? 10G connection for the construction of the mourning village? Early 1G connection approval / disapproval Demand pending?

Department 10G Home optical fiber network Demand

Opposite 10G home optical fiber network, home-use multi-trillion exchange desk, wireless access point (AP). Rooting demand disparity, home network possible reduction meeting demand network service equipment, myriad network, PoE exchange desk and IP image server equipment.

How about 10G home optical fiber network selection best equipment?

Yugami Kachi, Household network exchange desk, Road Yuuki Japanese-free line connection point, Home optical fiber network The most important three-individual network, Wakaso profitable, effective network, quality, excellent equipment, indispensable and indispensable. A small router for wireless connection points, such as a network switch desk for the lower side general, a router, and a wireless connection point.

Household network switching desk

On the city side, there are many types of network switchboards, such as Nyosen trillion switchboards, Myriad switchboards, 25G switchboards, and PoE switchboards. Among them, the opposite 10G home optical fiber exchange desk, the available demand 10,000 trillion network exchange desk Japanese PoE exchange desk. What kind of talent is the most suitable network switch for home use? Available for the following three areas:

Performance

Network switch, multi-functionality, management type network switch, however, home network switch, non-necessary choice support, possessive, effective network switch, choice support, basic function, immediate availability, VLAN, security, etc. At the same time, Etsuya can think about the power over Ethernet. Stacking ability is possible. Higher level of activity, younger period of sympathy, or demand. Immutable Primitive Network Structure-based Architectural Demand. PoE equipment that can be used for power over Ethernet, PoE equipment for home network, power over Ethernet, etc. PoE equipment, power over Ethernet, etc. (immediate PoE conversion desk or PoE + conversion desk).

End port

Usually, it is a household network interchangeable end type electric port (immediately RJ45 end port) Wako port (Nyo SFP / SFP + end port). Among them, the general use of the optical module, Cat6 network connection, the general demand for the optical module, the use of the optical module, the SFP + the general supply of the SFP + the LC, the optical fiber, and the optical module. .. Except for the type of network switch for home use, the number of network switches for home use, the number of network switches, the demand factor, the non-demand connection, the general network equipment, the general network switch 8 or 12 network switch, the immediate demand Demand connection Multi-purpose network equipment or person Short-term internal network scholarship scholarship, Naoken Can select 24 end or 48 end omnibus exchange desk.

Home router

Road Yuuki Kosho Home network connection arrival Indispensable equipment in the Internet. A network switch for home use, a router for home use, and a lot of choices. The service provider (ISP), the service provider (ISP), the direct information, the bandwidth, the bandwidth, the bandwidth, the bandwidth, the bandwidth, and the bandwidth.Currently present 10G home optical fiber network, cause and choice of routers, minimal application, equipment, single SFP + end. Next, the demand route router type, the immediate route router, the router, the router, the router, the router, the router, the router, the router, the router, the router, and the router. Wireless line router available at the same time. Wireless or Ethernet connection, but the wireless WiFi signal is covered by the finite system. Causes of this, the home network of the home network, the wireless router.

Home wireless access point

Radio equipment is possible, and wireless access points are indispensable. At the time of the access point of the selected wireless line, it is necessary to contact the destination. WiFi signal demand overwhelming maximum area A wireless access point that can be selected by a wireless communication point. This trivial problem, available fixed demand, some wireless access points, this sample can be avoided, few or multiple wireless access points.

Enjoy 10G home optical fiber plan example

Completed after the selection of network equipment. 10G home optical fiber department. A typical 10G home network network department, a multi-purpose network facility in the home network, a total network connection line, a general 24 end-of-life network, a core network exchange desk, and a total network network of 24 units. The majority of the lips, the end equipment connection, the four trillion exchange desks, the SFP + the optical fiber PoE + the exchange desk, the road Yuuki, and the network recording desk (NVR). Medium PoE equipment such as garage, garage, etc., PoE + exchange desk connection is possible immediately.