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  by www.fiber-mart.com 25G Ethernet has been hitting the web world at a sudden rate and may eventually become the fastest IEEE Ethernet standard ever completed.   25G cable is divided into  25G SFP28 direct attach cable  and 25G SFP28 active optical cable, both of them can transmit data at 25Gbps. What are the differences between them?   In this article, fiber-mart.com will focus on the differences between the two cables.     What is a 25G Direct Attach Cable?   25G DAC cable using silver conductor and foam insulation core, it has good attenuation performance and low delay performance, which make the signal transmission is correct, and can increase the transmission speed, is a short connection solution instead of the optical transceiver, the price is much cheaper than the same type of optical transceiver, in short distance connection applications has been widely welcomed.   What is a 25G Active Optical Cable?   25G AOC cable can be over...

  by www.fiber-mart.com Network generic cabling is becoming more and more popular. As a high bandwidth and high security data transmission medium, optical fiber cable is widely used in various large and medium-sized networks. However, due to the high cost of optical fiber cable solutions, in some cases, copper core high-speed cable still plays an important role. For example, 10G SFP+ DAC direct attach cable is the high performance of 10G data center short-distance transmission application Price ratio solution. So next, we will introduce the advantages and wiring applications of this high-speed cable.   Advantages of 10G SFP+ DAC:   10G SFP+ DAC  is a copper cable designed with both ends of the SFP+ connector. It is more flexible to use 10G SFP+ DAC for wiring, with a transmission distance of up to 15m, and less difficult to operate in the actual construction process. 10G SFP+ DAC wiring saves connection equipment, does not need to use distribution frame, and servers ...

  by www.fiber-mart.com When 10G network can not meet the increasing demand of the network, 40G network is more and more popular. With the continuous development, 40G Ethernet deployment has been accepted by more and more users. So do you know what factors should be considered when deploying 40G Ethernet? fiber-mart.com will solve the doubts for everyone！   Compared with the deployment of  10G networks , 40G is a bit more complex and requires more consideration, following will analysis three main factors. ◆ Selection of optical modules In 40G networks, the main optical transceivers are QSFP+ and CFP modules, Since the demand for optical modules in the entire network deployment is very large, the cost of optical modules should not be underestimated. However, the compatible module on the market has become more and more popular, and the performance is comparable to the original module, and the price is very reasonable. Therefore, when deploying 40G Ethernet, choosing the hig...

  by www.fiber-mart.com AOC stands for Active Optical Cable, realize photoelectric conversion and transmission by the optical transceiver at both ends.  40G QSFP+ AOC  is one of the most popular Active Optical Cables on the market. Why is it develop so fast? What advantages does it have? Today, fiber-mart.com will introduce 40G QSFP+ AOC to everyone.   What is 40G QSFP+ AOC? 40G QSFP+ AOC is the core component for realizing parallel optical interconnection, made of ribbon optical patch cord connect two high-speed 40G parallel connectors(As below picture). There are 4 data channels in each signal direction, each channel can work at 10Gbps speed, transmission distance is generally 1 to 100m.   What advantages does 40G QSFP+ AOC have? Compared with the traditional 40G copper cable, 40G AOC has incomparable advantages: ※High transmission efficiency, small size, light weight, low energy consumption. ※ AOC compared with optical transceiver, there is no cleanliness pro...

 Direct Attach Copper, referred to as DAC.It is including two kinds: 1.SFP+ DAC 10G; 2.QSFP+ 40G turns 4 SFP+. This cable can not replace the port, can only be replaced together with the product line, the module head and the copper can not be separated.Today we will introduce the SFP+ DAC cable,mainly to talk about what is SFP+ DAC Cable? We will also talk about its features and advantages. What is SFP+ Direct Attach Copper Cable? SFP+ DAC Cable is a copper interconnect using a passive twin-ax cable assembly that connects directly into an SFP+ housing. It is low power, low cost and low latency with the added advantage of having the small form factor of SFP+, and smaller, more flexible cabling. SFP+ DAC Cable is a low cost technical solutions to alternative 10G optical module. Widely used for the short-distance high speed Internet, such as gigabit network card, Gigabit switch, million server, super computer, cloud computing, cloud storage network, etc.fiber-mart.com can provide you ...

 In recent years, customers require more and more flexible and scalable I/O solutions to meet the rigorous requirement of different deployments. 10G SFP+ DAC cables meets the demanding needs for today's data center environments. Moreover, price, performance and flexibility have made 10G SFP+ Cable an attractive choice for the data center. Today we would like share some knowledge of 10G SFP+ DAC cable with you, hope it would help your business or market sharing enlargement. 1. What's 10G SFP+ DAC Cable? DAC means Direct Attach Cable. 10G SFP+ DAC Cable is a copper interconnect using an inexpensive Twinax copper cable assembly with SFP+ connectors on both sides based on SFP+ MSA(multi-source agreement). It has the advantage of low power, low cost and low latency. 2.10G SFP+ DAC Cable type? 10G SFP+ DAC Cable uses a copper 10G cable that comes as active or passive Twinax cable assembly and connects directly into an SFP housing. 10G SFP+ Active Cable have a silicon chip to boost th...

  by www.fiber-mart.com Optical media converter is a medium for transmitting short distance electrical signals and long distance optical signals. Because some short distance electrical signals can not be covered in some network environment, must use optical fiber to extend the transmission distance. The cost of upgrading copper wire to fiber is too high, so the application of media converter is more and more extensive.   Media converter is divided into single mode and multi-mode, the most fundamental difference is the transmission distance. The operating mode of single mode media converter is single node and one port signal transmission, so the signal transmission distance is relatively long, which constitutes the construction of trans metropolitan area network; Multimode media converter is just the opposite, its working mode is multi node, multi port signal transmission, so the signal transmission distance is relatively short, but the price is low, easy to use, mostly used fo...

  by www.fiber-mart.com Today we want to share some about the media converter with you after some customers asked about it.   Media converter is made up for the traditional Ethernet short transmission distance to realize long distance transmission of the signal.   Media converter is a transparent bidirectional converter to provide the data signal to Ethernet optical data signals. It can also break the limitation of 100m distance transmission for the Ethernet cable transmission.   Media converter are widely used in the higher data flow and higher performance Ethernet environment, such as Telecom, Broadcast and television, networks and so on.   Ethernet Media Converter have two types of the connector port: RJ54 optical port and optical port such as SC port, RJ45 port is used for connecting the electric cable, Optical port is used for connecting the optical port.   Media converter  is usually used with the Optical fiber patch cords to extend the transmiss...

  by www.fiber-mart.com In the 5G network architecture, the front-pass optical module is upgraded from 10G to 25G. This article fiber-mart.com will introduce the application of 25G SFP28 optical module in 5G fronthaul.   25G SFP28 dual fiber gray optical module   25G typical dual-fiber gray optical  module supports transmission distances of 300 meters and 10 kilometers, 25G SFP28 300meters multimode optical module is mainly used for interconnection under the base station tower, and 25G SFP28 10 km single-mode optical module is mainly used for long distances of stations or links with larger link losses between AUU and access to the machine room (site) between the fiber direct connection scenario. 25G multimode optical module center wavelength of 850nm, duplex LC interface, multimode, operating temperature of 0 °C ~ 70 °C, transmitted optical power of -8.4 to +2.4dBm, the use of OM4 multimode fiber can be transmitted to 100 meters.   25G SFP28 10km single-mode opt...

  by www.fiber-mart.com The communication triangular tower is composed of antenna, computer room, base station, feeder, and supporting equipment. The antenna is at the top of the triangular tower, and there is a computer room under the tower. The computer room is mainly for the base station, and the base station is the equipment that transmits wireless signals. The base station is logically divided into two parts: BBU and RRU. RRU is responsible for signal transmission and reception, and BBU is responsible for signal processing. The feeder is used to connect the antenna and the base station, and the supporting equipment is mainly the power supply and air conditioner.   The distributed site separates the BBU and RRU of the base station. The RRU is hung on the tower, and the BBU is placed in the equipment room under the tower. The CPRI protocol transmits physical layer data between the BBU and the RRU, which not only includes the bearer data, but also contains a large amount of ...

  by www.fiber-mart.com 10G SFP+ direct attach cable is a common cable for data center overhead cabling, which is used to connect small access switches and servers.  10G SFP+ direct attach cable  is a low cost solution instead of optical module and AOC active optical cable. It has the advantages of low power consumption and low cost. It is an ideal choice for the connection between server and switch to realize short distance direct attach interconnection.   10G SFP+ DAC is a copper cable with two ends of SFP+ connectors, which supports up to 10 Gb/s rate and can be backward compatible with 1 Gb/s. Different from optical module and AOC active optical cable, DAC transmits electrical signal directly through copper wire, while optical module and AOC active optical cable convert electrical signal into optical signal for transmission.   There are no lasers, detectors, amplifiers and other optical devices and MCU control chips in the two ends of the DAC, and the price ...

  by www.fiber-mart.com DAC high-speed cable is a low-cost and short-distance connection solution for data center equipment. It consists of a cable and optical fiber transceiver devices at both ends of the cable. Because of the high cost performance, the interconnection application between short-distance network equipment is widely welcomed. At present, there are many specifications of DAC high-speed cables on the market. If you want to buy a cost-effective high-speed cable product, fiber-mart.com summarizes the following considerations for everyone here.   1. There are two types of high-speed cables, active and passive. The difference between the two is that the active DAC high-speed cable has an additional driver chip. At the same time, active optical cables do not need power supply skills to display their characteristics, while active optical cables require external power to display their characteristics. Under normal circumstances, when the transmission distance exceeds 5 ...

  by www.fiber-mart.com JuniperNetworks is a network communications equipment company,it was founded in February 1996.Headquartered in California, with offices in 47 countries, more than 9000 employees.Customers include the service providers in world's top 130 , 96 companies in Fortune 100 and hundreds of public sector organizations. Mainly supplies IP network and information security solutions.   The main product line of Juniper includes WAN Acceleration,VF series,E series, J series, M series, T series Router products,SRX series firewall, EX series network switch and SDX service deployment systems etc.   Juniper Switches  divide into EX series Ethernet switches and QFX series switches. The product lines of EX series Ethernet switches: EX2200, EX2500, EX3200, EX3300, EX4200, EX4300, EX4500, EX4600, EX6200, EX8200 and EX9200. The product lines of QFX series switches: QFX5100, QFX5200 and QFX10000.   With the continuous development of optical fiber communication p...

  by www.fiber-mart.com Some customers want to know about the difference between multimode and single mode SFP , so we summarize some information about multimode and single-mode.The following is some concepts and the differences between multimode and single-mode SFP.   According to the wavelength,there are 850nm / 1310nm / 1550nm / 1490nm / 1530nm / 1610nm.850nm wavelength is fit for multimode SFP, transmission distance is below 2KM; 1310/1550nm wavelength is fit for  single-mode SFP , transmission distance is over 2KM. Generally, the price of these three wavelengths is lower than the other three.   The raw modules are easily confused if there is no identity, the manufacturers will be distinguished in the color of the ring generally. For example: The black ring is multimode and the wavelength is 850nm; The blue, yellow and purple ring is single-mode, the wavelengths are 1310nm, 1550nm, 1490nm.   Multimode : Almost all of the dimensions of multimode fiber core ar...