Fiber-Mart, worldwide leading supplier in fiber optic network, fttx, fiber cabling, fiber testing.

by www.fiber-mart.com Fiber media converters  is an indispensable network data transmission equipment, then what is optical media converter, it has what composition, what role does it play in the data dissemination process?   Fiber media converters include three basic functional modules: optical media conversion chip, optical signal interface (optical media converter module) and electrical interface (RJ45), if equipped with network management functions, including network management information processing unit. It is an Ethernet transmission Media conversion module that converts short distance twisted-pair signals and long distance optical signals to each other and is also called a fiber converter or Ethernet media converter. It generally applies to Ethernet cables that cannot be covered, it is necessary to use optical fiber to extend the actual network environment of transmission distance, and it is usually positioned in the access layer of broadband Metropolitan Area N...

by www.fiber-mart.com XENPAK is a multi-source agreement (MSA) for a 10 Gigabit Ethernet (10GbE) transceiver package. It’s the oldest 10G fiber optic transceiver.  XENPAK transceivers  are designed with XAUI interface and Digital Diagnostic Monitor Interface, which comply with the XENPAK MSA protocol and satisfy the application of 802.3ae Ethernet protocol 10GB. XENPAK transceivers are supplied for physical layer interfaces supporting multi-mode and single mode fiber optic cables and InfiniBand copper cables with connectors like as CX4. Transmission distances vary from 100 meters (330 ft) to 80 kilometers (50 mi) on fiber and up to 15 meters (49 ft) on CX4 cable. Newer XENPAKs using the 10GBase-LX4 standard operated using multiple wavelengths on legacy multimode fibers at distances of up to 300 meters (980 ft), eliminating the need to reinstall cable in a building when upgrading certain 1 Gbit/s circuits to 10 Gbit/s.   The XENPAK form factor was initially supporte...

by www.fiber-mart.com Definition of Industrial  Fiber Optic Transceiver   Industrial fiber optic transceiver also called as hardened fiber optic transceiver or hardened industrial grade fiber optic transceiver, it refers to the optic transceiver with rugged connectors and extended operation temperature of -40°C to 85°C in an harsh industrial environment, such as industrial fiber media converter or Ethernet Switches for the application of industrial and factory automation,outdoor applications,rail and intelligent transportation systems (ITSs),marine,oil and gas,mining etc. Unlike commercial grade fiber optic transceiver, this one must be designed with field-hardened components including two optical subassemblies, an electrical subassembly, and the housing, and tested to handle operating temperatures between -40°C and 85°C to avoid causing any premature failure of the product.   Types of Industrial Fiber Optic TransceiverRAD SFP-3H Compatible 100BASE-EX SMF 1310n...

by www.fiber-mart.com A  Passive Optical Network  (PON) is a system that transmits all or most of the fiber cabling and signals to end-users. Depending on where the PON terminal is located, the system can be described as fiber-to-the-curb (FTTC), fiber-to-the-building (FTTB), or fiber-to-the-home (FTTH).   The optical distribution network does not contain any electronic devices and electronic power supply, ODN splitter consist of the passive components, and other components do not require expensive active electronic devices. A passive optical network includes an optical line terminal (OLT) installed at a central control station and a set of optical network units (ONUs) installed at customer side. The Optical Distribution Network (ODN) between the OLT and the ONU contains optical fibers as well as passive optical splitters or couplers.   The structure of the PON system is mainly composed of an Optical Line Terminal (OLT) at the ca0rrier’s office, an Optical...

by www.fiber-mart.com What is  Fiber Optic Adapter ? Fiber optic adapters (also known as Fiber couplers, Fiber Adapter ) are designed to connect two optic cables together. They have a single fiber connector (simplex), dual fiber connector (duplex) or sometimes four fiber connector (quad) versions. The optical fiber adapter can be inserted into different types of optical connectors at both ends of the optical fiber adapter to realize the conversion between different interfaces such as FC, SC, ST, LC, MTRJ, MPO and E2000, and is widely used in optical fiber distribution frames (ODFs) Instruments, providing superior, stable and reliable performance.   Features of Fiber Optic Adapter The optical fibers are connected by an adapter through its internal open bushing to ensure the maximum connection between the optical connectors. In order to be fixed in a variety of panels, the industry also designed a variety of finely fixed flange.   Transformable optical adapte...

by www.fiber-mart.com Lasers are the core devices of  optical transceivers , which injecting current into semiconductor materials and injecting laser light through the photon oscillations and gains in the resonator. At present, the most commonly used lasers are VCSEL, FP, and DFB laser. The difference between them is that semiconductor materials and resonator structures. DFB lasers are more expensive than FP lasers. The optical modules of transmission distance within 40km generally use VCSEL, FP lasers; transmission distance ≥ 40km generally use DFB lasers. Do you know all the transceiver laser types? Let us learn this knowledge.   LED Laser Light-emitting diode referred to as LED. Made of a compound containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N). Visible light is emitted when electrons recombine with holes and thus can be used to make light emitting diodes. In the circuit and equipment as a light, or composed of text or digital display. Gallium a...

by www.fiber-mart.com PoE Definition Short for Power over Ethernet,  PoE  is a standard that allows Ethernet cables to simultaneously transmit data and power using a single network cable. This allows system integrators and network installers to deploy powered devices in locations that lack electrical circuitry. PoE eliminates the expense of installing additional electrical wiring which entails hiring professional electrical installers to ensure that strict conduit regulations are followed. Typical PoE users are businesses adding to their network or adding VoIP phones in buildings where new power lines would be expensive or inconvenient. What are the advantages of Power over Ethernet? Cost savings– PoE significantly reduces the need for electricians to install conduit, electrical wiring, and outlets throughout the enterprise.   With PoE, only one cable – a simple CAT-5 Ethernet – is required. Quick Deployment– PoE simply requires plugging in ne...

by www.fiber-mart.com A recent report from market research company LightCounting talks about the  40G & 100G optical transceivers  basics, here are the details. 40G and 100G have two main types in the data center. Short reach (SR4) for ~100 meters transmission on multimode fiber and Long Reach (LR4) for 100 meters to 10km using single-mode fiber. We can use SR/LR transceivers to connect compute clusters and various switches layers in data centers. 40G transceivers are typically deployed as four 10G lanes in QSFP or CFP MSAs. 40G SR transceiver uses 8 multi-mode fibers, VCSEL lasers, and the QSFP MSA. Using edge-emitting lasers and multiplexes the four 10G lanes onto two single-mode fibers, 40G LR4 reach a 10km distance per CFP MSA, CFP/2 or QSFP28 MSAs. The 40G SR4 and LR4 transceivers can be used in the same QSFP switch port without any issues.   100G SR10 transceivers use 20 multi-mode fibers, VCSELs and the CXP MSA, the 100G LR4 transceivers uses ...

by www.fiber-mart.com 1.  Cause : Intermittent faults – Unidentified intermittent faults are amongst the most common and damaging issues that affect structured cabling networks. Faulty patch leads and broken or malfunctioning outlets are typical causes of this frustrating and puzzling problem, but identifying the lead or outlet that’s misfiring can be a headache in itself. Effect : Valuable resources are wasted. 2.  Cause : Wi-Fi problems – Wi-Fi can present a host of challenges when installed incorrectly – from poor coverage to intermittent connectivity. Connecting multiple devices that use conflicting Wi-Fi standards is a common cause of many problems. Equally, the Wi-Fi devices themselves may be faulty or installed in the wrong position. If neither of these factors are the cause of your issues, check if you’ve connected new Wi-Fi devices with outdated cabling. Effect : Workforce efficiency and productivity plummet. 3.  Cause : Disorganization and disorder – ...

by www.fiber-mart.com What standard addresses 100G, and when will this standard be complete? The IEEE 802.3ba technical requirements were ratified in the recent April 2010 sponsor ballot. The document has been forwarded for approval to RevCom and is expected to be released in June 2010. When is customer implementation of 100G expected? Early end-user adoption is expected in 2010. Industry adoption is anticipated in 2013. Where will 100G be used (in what applications)? Core networking applications will have a future need for bandwidth beyond existing capabilities. Switching, routing and aggregation in data centers, internet exchanges and service provider peering points, and high-bandwidth applications such as video-on-demand and high-performance computing environments will drive the need for 100 Gb/s Ethernet interfaces. What parameters affect a product’s ability to support 100G? Which of these is the limiting factor? Bandwidth and insertion loss each impact the ability to meet...

by www.fiber-mart.com Data requirement is tremendous increase in year 2016 to year 2020, thus a high transmission media is required,  Active Optical Cables  (AOCs) could achieve high data transmission over distances, The AOC with electrical inputs as a traditional copper cable, and use optical fiber as transmission media, it is an ideal to streamlined installation for high-performance computing and storage applications with sacrificing compatibility of the existing standard electrical interfaces.   The AOC Cable generally composed  as follow:   The Active connectors are QSFP+, complied with SFF-8436 standard, could be hot-swappable in switch, router, etc.   The system with 4Tx and 4 Rx channels, could transmit data in parallel to reach duplex data transmission. The AOC with O-E (Optical-Electronic) and E-O (Electronic – Optical) conversion module. The ribbon optical fiber cable (generally yellow cable for SM (single mode) Cable, and Orang...

by www.fiber-mart.com OSFP  is short for Octal Small Form Factor Pluggable. it is being designed to use eight electrical lanes and each lane for 50GBE to deliver 400GbE. compared with QSFP transceiver, It is slightly wider and deeper, but it still supports 36 OSFP ports per 1U front panel, enabling 14.4 Tbps per 1U.   OSFP is a conventional style of electrical interconnect, leveraging best practices that the industry has learned in the past from SFP and QSFP connectors. The electrical connector in OSFP has a single row of contacts on both top and bottom, and it provides robust electrical and signal-integrity performance. Because it’s faceplate pluggable and eld replaceable, it has a single-receptacle electrical connector.   One of the nontraditional aspects of OSFP is that it integrates thermal management (heat sinking) directly into the form factor to help cool the module, similar to the microQSFP form factor that predates it. An OSFP integrated heat sink is i...

by www.fiber-mart.com Sound cable management practices help data centers function smoothly and reliably. Managers can implement a variety of procedures to minimize data center inefficiencies, such as slow troubleshooting and interruptions due to the unplugging the wrong equipment.) Well managed cable supports server performance and throughput, minimizes disruptions and downtime, and safeguards the integrity of  cables  and ports.   One solution for complex networks is the use cable management systems (CMSs). There are many products and services available that managers can use to document cable sub-systems and paths, plan migrations and expansions, and track moves, adds and changes (MACs). The software requires manual entry of cable connections and types, and users must make updates for each move or change to keep documentation accurate. Some CMSs can model data center equipment and migrations and generate task lists for migration.   Horizontal and Vertical...

by www.fiber-mart.com QSFP28 fiber optic  module has become the dominant form factor for 100G high-speed networks. The interconnect offers multiple channels of high-speed differential signals with data rates ranging from 25Gbps up to potentially 40Gbps, and meets 100Gbps Ethernet (4×25Gbps) and 100Gbps 4X InfiniBand Enhanced Data Rate (EDR) requirements. Fiber-mart 100G QSFP28 optical transceiver including SR4, LR4, PSM4, CWDM4 and AOCs, complied with IEEE 802.3bm and SFF-8636, compatible with network device from different vendors, designed for applications of 100G Data Center Internal Network, Data Center Interconnection and Metro Network.   The following list is QSFP28 fiber optic transceivers form Fiber-mart.com, it is able to compatible with the main network device provider like Cisco, HPE, Huawei, etc.   QSFP28 SR4: The QSFP28-SR4 optical module supports links of 70m over OM3 MMF and 100m over OM4 MMF with MPO-12 or MTP-12 connectors. This transceiver is a...

by www.fiber-mart.com CWDM Mux/Demux The Coarse Wavelength Division Multiplexing-CWDM Mux/Demux is often a flexible plug-and-play network solution, which helps insurers and enterprise companies to affordably implement denote point or ring based WDM optical networks. CWDM Mux/demux is perfectly created for transport PDH, SDH / SONET, ETHERNET services over WWDM, CWDM and DWDM in optical metro edge and access networks. CWDM products are popular in less precision optics and lower cost, un-cooled lasers with lower maintenance requirements. Weighed against DWDM and Conventional WDM, CWDM is much more economical and less power consumption of laser devices. CWDM Multiplexer Modules can be found in 4, 8 and 16 channel configurations. These modules passively multiplex the optical signal outputs from 4 too much electronic products, send on them someone optical fiber and after that de-multiplex the signals into separate, distinct signals for input into gadgets across the opposite end for your ...