May 30, 2013

Media Converter Chassis From FiberStore

Media Converter Chassis is really predominantly useful to manage all sorts of media converters, along with most of the converters connected to any chassis could publish same exact power. Any fiber media converter chassis will create a lot of media converters utilizing ability, this would effortless any links and structure, it'll job stably and adapt broad width of voltage. It'll retail store good ability and may also get powered together with monitored conveniently. And any maintenance of this chassis is straightforward.

FiberStore has two kinds of rack-mounted fiber optic media converter chassis for unmanaged media converters : 2-U 14 slots media converter chassis and 2-U 16 slots media converter chassis .The 14 slots fiber optic media converter chassis supports plug-and-play installing of stand-alone media converters convert modules ,can hold at most 14 pieces media converters. The 16 slots fiber optic media converter chassis should be combined with card-type media converters .The 16 slots media converter chassis holds at most 16 card-type converters of 10/100M.

Installing in the center of network, the 14 Slot Fiber Optic Media Converter Chassis Rack not only reduce the links, simplify the structure, but also ease for management and maintenance.

14 Slot Fiber Optic Media Converter Chassis Main features: The power of the Rack could be given by the kind of single power or dual power. Adopting dual power supply, the load of every power could be reduced and the life of the power would extend; When one power supply is at fault, the other one can still work independently. It would boost the toughness for the RACK; Supplying the Converters or Powers to become plugged and played; It is possessed of stable performance, large capacity of power supply, and ease for management and maintenance; 2U high: 19-inch standard design.

Media converter chassis is acceptable which are more 16 teams of different Media Converter Cards inside a rack-mountable chassis which is provided with unified power. Installing in the center of network, it can not only reduce the links, simplify the dwelling, but additionally ease for management and maintenance. It can be tidily placed at any network environment. The external type of RACK is straightforward and tidy. It's ready for 10/100Mbps, 10/100/1000Mbps Converter Card to become plugged in, and will also be the best solution of network connections for the continuous growth and development of network.

Media converters transparently connect one sort of media, or cabling, to a different- typically copper to fiber. Obtainable in stand-alone, modular chassis-based, or PCI powered configurations, FiberStore's media converters offer copper to fiber and fiber to fiber media conversion in the following supported protocols: Ethernet Media Converter, Fast Ethernet, Gigabit Ethernet, Power-over-Ethernet, 100/100, 10/100/1000, ATM, T1/E1, DS3/E3, POTS, RS232 to Ethernet, RS485 and more. By bridging the space between legacy copper infrastructures and fiber growth, our media converters provide an economical path towards extending the length of an existing network, extending the life span of non-fiber based equipment, or extending the length between two like devices.

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May 29, 2013

Description Of PDH Multiplexer

PDH Multiplexer, or Plesiochronous Digital Hierarchy multiplexer, is a kind of point-to-point optical transmission equipment used to transport large quantities of data over digital transport media, for example fiber-optic and microwave radio systems. PDH Multiplexer is designed of highly integrated structure and provides 16 standard E1 interfaces together with one channel of order wire, with self-contained alarm and NM functions, in addition to self-testing and E1 loop-back testing functions. The unit is popularly with telecommunication operator. It is suitable running a business for communication operator, government and kinds of entities.

PDH was created in the early 1960s. It derives its names in the Greek term "plesio," meaning near, and "chronos," meaning time. The name refers back to the fact that networks using PDH run in a state of just about, although not quite, perfect synchronization. PDH was the very first standardized multiplexing hierarchy based on time-division multiplexing. It works by channeling numerous individual channels into higher-level channels.

Work Theory Of PDH Multiplexer
The PDH product is in line with the theory when you've two identical clocks, each the same brand, style and everything, there is no guarantee that they'll run at the exact same speed. Most likely one of these is going to be slightly out of synchronization using the other. The transmitting multiplexer combines the incoming data streams, compensates for just about any slower incoming information, reconstructs the initial data and sends it back out at the correct rates. This system allows for that slight variation in speed and corrects it during transfer to keep the machine constantly running without pausing and waiting for certain slower data to arrive before sending it on. PDH simply fills within the missing bits to match a smooth change in data.

PDH made little provision for management of the network, and the need to fully de-multiplex a high level carrier to extract a lower level signal resulted in enhancing the capacity of PDH networks beyond a certain point wasn't economically viable. The main economic factor was the cost of the equipment required at each cross-connect point within the network where either individual channels or low-level multiplexed data streams should be extracted or added. Additionally, it added additional latency and increased the possibility of errors occurring, thereby reducing network reliability.

Available Kinds of PDH multiplexer
Traditionally, each channel in PDH was a digitized voice, but video information and knowledge can also be sent of these channels. The fundamental channel is 64 Kbits per second, which is the bandwidth that is required to deliver a voice call that's been converted from analog to digital.

N*E1 PDH Fiber Optic Multiplexers make use of the PDH fiber transmission technologies. The 2M (E1) interfaces can interact with the exchanger, light loop tool and multi-diplexer directly to form the micromini or the special network. Complete alarm function for N*E1 PDH Fiber Optic Multiplexers, it's stable, easy to maintenance and install, small in size. It can support one digital service telephone.

PDH Multiplexer can multiplex 4/8/16E1, Ethernet Media Converter (2*10/100Mbps) and V.35 signals in one fiber channel to deliver. It's ideal for low capacity, point-to-point application of remote transmission. The PDH Multiplexer can be applied to create economical and flexible multi-service transmission networks, employed for relay between switch offices, data transmission of LAN, 2M access of lease service for key clients, voice cutover for residental areas/intelligent buildings, and connection of base stations and other various digital transmission networks. Fiber Optic Multiplexer is reliable, stable, simple to install and keep, which may be monitored from Fi-view-MST management software, that is popular in voice and knowledge application field.

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May 28, 2013

Passive Optical Network Review

PON ( Passive Optical Network) refers to the optical distribution network doesn't contain any digital camera and electronic power, optical distribution network (ODN) all by the optical splitter and other passive components, without the need for expensive electronic equipment, is really a type of fiber-optic access network. PON cuts down on the amount of fiber and central office equipment required compared with point-to-point architectures.

A PON consists of an optical line terminal (OLT) at the service provider's central office and a quantity of optical network units (ONUs) near end users. In OLT/ONU between the optical distribution network includes optical fiber and passive optical splitter or Fiber Optic Coupler.

OLT
An OLT, generally an Ethernet switch, router, or multimedia conversion platform, is located in the central office (CO) like a core device from the whole EPON system to provide core data and video-to-telephone network interfaces for EPON and also the company.

ONU
ONUs are utilized to connect the client premise equipment, for example PCs, set-top boxes (STBs), and switches. Generally placed at customer's home, corridors, or roadsides, ONUs are mainly accountable for forwarding uplink data sent by customer premise equipment (from ONU to OLT) and selectively receiving downlink broadcasts forwarded by OLTs (from OLT to ONU).

ODN
An ODN includes optical fibers, a number of passive optical splitters (POSs), and other passive optical components. ODNs provide optical signal transmission paths between OLTs and ONUs. A POS can couple uplink data right into a single bit of fiber and distribute downlink data to respective ONUs.

There are two passive optical network technologies: Ethernet PON (EPON) and gigabit PON (GPON). EPON and GPON are used in different situations, and every offers its very own advantages in subscriber access networks. EPON concentrates on FTTH applications while GPON concentrates on full service support, including both new services and existing traditional services for example ATM and TDM.

EPON is really a Passive Optical Network which carries Ethernet frames encapsulated in 802.3 standards. It is a mixture of the Ethernet technology and also the PON technology in compliance using the IEEE 802.3ah standards issued in June, 2004. A typical EPON system consists of three components: EPON OLT, EPON ONU and EPON ODN. It has many advantages, for example lower operation and maintenance costs, long distances and higher bandwidths.

GPON utilizes point-to-multipoint topology. GPON standard differs from other PON standards for the reason that it achieves higher bandwidth and higher efficiency using larger, variable-length packets. And GPON is generally considered the best candidate for widespread deployments. GPON includes a downstream capacity of 2.488 Gb/s as well as an upstream capacity of 1.244 Gbp/s that's shared among users.

There are also many differences between EPON and GPON. EPON, based on Ethernet technology, is compliant using the IEEE 802.3ah Ethernet in the First Mile standard that's now merged in to the IEEE Standard 802.3-2005. It's a solution for the "first mile" optical access network. GPON, on the other hand, is a vital approach to enable full service access network. Its requirements were set force by the Full Service Access Network (FASN) group, which was later adopted by ITU-T as the G.984.x standards-an addition to ITU-T recommendation, G.983, which details broadband PON (BPON).

Both EPON and GPON are known as international standards. They cover exactly the same network topology methods and FTTx applications, incorporate exactly the same WDM technology, delivering the same wavelength both upstream and downstream together with a third party wavelength. PON technology provides triple-play, Ip address TV (IPTV) and cable television (CATV) video services.

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May 27, 2013

Why Would We Need Copper SFP Module

Because the improvement of network, it will be vital that you maintain both configuration flexibility and port utilization for equipment deployed in the intersection of legacy copper and newly installed optical networks. Copper SFP (small form factor pluggable) module ensures the SFP form factor have emerged because the best way to optimize port-level flexibility. The maturation of Copper SFP module is playing a vital role in enabling system designers to satisfy these objectives while simplifying their inventory and reducing operating costs.

Copper SFP module utilizes a copper line for linking. The copper transceiver includes transmit and receive two decision points, Radiating portion includes laser circuit and optical maser, Receiving part includes PIN, TIA and Limtiting Amp, completing digital signal transparent O/E, the E/O conversion functions. Typical copper SFP things like Cisco GLC T and SFP GE T, these SFP modules are used in Gigabit networks and they're fully suitable for 1000Base-T. SFP GE T may be the copper SFP which are with extended working temperature and DOM support. And i'll talk about the common widely used 1000BASE-T copper SFP module below.

1000BASE-T 1000Base T SFP module means the little form fiber optic transceiver that complies with 1000Base-T standards. 1000Base T SFP is copper SFP transceivers also it uses category 5 cables for linking and with a really limited working span. 1000Base T SFP is perfect for Gigabit Ethernet and delay pills work under IEEE 802.3 standards.

Specifications of 1000BASE-T copper SFP module: 1.25 gigabyte Ethernet over cat 5-cable; Extended case temperature range; Switch, router to change, router link; High-speed I/O for file severs; compliant while using Gigabit Ethernet and 1000BASE-T standards as specified by IEEE 802, 3-2002 and IEEE 802.3ab; support 1,000 Mbps full duplex data-links with 5-level pulse amplitude modula-tion (PAM) signals; provide standard serial ID information compliant with SFP MSA, which may be accessed with address of A0h via the 2-wire serial CMOS EEPROM protocol; The physical IC may also be accessed via 2-wire serial bus at address Ach; Qualified to satisfy the intent of Bellcore reliability practices; Compliant with SFP MSA specification and SFF-8472 ; Links of narrow, intermediate or long reach with single or Multi-mode fiber; ROHS, CE and FCC certified; DMI feature on request.

FiberStore Technology, a professional fiber optic products supplier, provides the copper SFP module which are made according to IEEE standards, these copper SFP transceivers are suitable to make use of while using equipment and devices that are with copper SFP slots or ports. The copper SFP module offers a flexible and simple approach to be installed into SFP MSA compliant ports at any time with no interruption from the host equipments operation. It enables for seamless integration of fiber with copper LAN connections wherever SFP interface slots are available. Such system is economical, it saves time, offers flexibility and eliminates the requirement of replacing entire devices when the customers have to change or upgrade fiber connections and you'll benefit a great deal from it.

Fiberstore is experienced on fiber optic technologies and merchandise. Learn much more about Cisco SFP 10G and BiDi SFP on FiberStore.com.

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May 24, 2013

Protocol Converters To Achieve Interoperability

A protocol converter, referred to as protocol translator, accustomed to convert standard or proprietary protocol of one device to the protocol ideal for the other device or tools to offer the interoperability, with every protocol based on many factors. It is much like a language translator, translates messages, or data streams, between networks make it possible for both networks to simply interpret the data. Typical types include E1 to Ethernet, V35 to Ethernet and E1 to V35. Variety protocols utilized in different fields like Power Generation, Transmission & Distribution, Oil & Gas, Automaton, Utilities, AMR, and Remote Monitoring applications.

Structure Of Protocol Converter
The general architecture of the protocol converter includes an internal master protocol communicating towards the external slave devices and the data collected is used to update the internal database of the converter. When the external master requests for data, the internal slave collects data in the database and send it to the external master.

The end result of the protocol converter is to allow the protocol of 1 machine communicate with the protocol of another, increasing the quantity of machines the network can use. As the penalties normally are slight, conversion in one protocol to another may slow the bond speed, especially if the converted protocol innately has a lower data rate. Most converters possess a database with several protocols, and this database is used to transform the initial protocol to a different format.

Different Protocols Of Protocol Converter
The majority of networks have many machines using different protocols, and these protocols dictate the way a machine acts. These protocols are based on several factors, including data rate, encryption methods, file and message formats and associated service, because some services exclusively use one protocol. A protocol converter is given the job of taking this protocol and changing it to a different one.

Most protocol converter units are programmed to understand a number of different protocols, and these units use an internal database to trace all the protocols. This database will store all of the factors associated with the known protocols, and the database is also tasked with helping this device understand what must be changed to change one protocol to another. Unlike regular databases, which may be manually updated, this database typically is locked from users.

Options that come with Protocol Converter
Protocol converters provide physical conversion between ITU-T G.703 standard E1 interface and standard V.35, RS232, RS422 converter, RS485 converter and 10M/100M Ethernet interface, offering security and seamless link for communication between different devices with various interfaces. Protocol supports IEEE 802.3, IEEE 802.1 P, 802.1Q (VLAN). The interface converter transfers data with V.35, RS232, RS485, RS422 output. E1 interface works with ITU-T G.703, G.704 and G.823 supporting BNC 75Ω/unbalance impedance and RJ45 120Ω/balance impedance with speed rates range of 64K~2.048Mbps. Single and multi E1 and framed E1 (FE1) channels; data interface and Ethernet interface; mini rack and 19 inch rack; 220V, 110V, 48V power supply or both are optional, in addition to TDM over IP devices.

Protocol converter series may put into action the actual transformation among single E1 protocol port in addition to protocol ports of V.35, V.24, RS232 Ethernet converter or Ethernet within the tranny system; it may be thoroughly utilized in numerous being able to access issues with regard to providers in addition to commercial clients, for instance DDN, ATM, and for that transformation in between router and E1 port, or perhaps the actual occasion exactly where Ethernet tend to be interconnected from divided internet sites through SDH or even additional tranny gear.

A protocol converter usually is helpful. Protocols are software installed on the routers, they're widely used in a number of industries for applications for example building and process automation. Protocol converters also are employed for substation automation, or a system for managing and controlling equipment within an electrical power system.

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May 23, 2013

Various Types Of Fiber Connector Adapters

Fiber optic adapter or fiber optic coupler is a medium component, designed to connect two fiber optic cables together. A fiber-optic adapter allows fiber-optic cables to be attached to each other singly or in a large network, allowing many devices to communicate at once. Adapters come in versions to connect single fibers together (simplex), two fibers together (duplex), or sometimes four fibers together (quad). Optical adapters are widely uses in light distribution frame(ODF), the optical fiber communications equipment, the measuring appliance and so on.

Fiber Optic Adapter Specifications:

Insertion Loss < 0.20Db;
Durability Operating Temperature: -40 to 80 °C;
Low insertion loss and back reflection loss;
High precision alignment;
Telcordia, ANSI, TIA/EIA, NTT and JIS compliance.

The fiber optic adapters are many types because of the diversity of the connectors. The fiber optic adapters are available in simplex, duplex and quad (for some types like LC and MU) configurations and with FC, SC, ST, LC, MT-RJ, MU, and more types, type MT-RJ is for use with fiber modem applications. According to the fiber connector types that the adapters used to connect there are standard fiber optic adapter and hybrid fiber optic adapter. Besides, there are also bare fiber optic adapter used to connect with the bare optical fibers directly.

Standard Fiber Optic Adapter
Standard fiber optic adapters are simplex, duplex and quad (for some types like LC and MU) structures, they are female to female type, used to link fiber optic connectors, typically they are with ceramic sleeves, fit for both single mode and multimode fiber optic connections.

Hybrid Fiber Optic Adapter
Fiber optic adapters are typically connecting cables with similiar connectors (SC to SC, LC to LC, etc.). Some adapters, called "hybrid", accept different types of connectors (ST to SC, LC to SC, etc.). A hybrid connector can be designed to fit any two types of fiber-optic cables together. When the connectors have differing ferrule sizes (1.25mm to 2.5mm), as found in LC to SC adapters, the adapters are significantly more expensive because of a more complicated design/manufacturing process.

Fiber optic adapter are used in fiber optic connection, the typical use is to provide a cable to cable fiber connection. Connecting two cables together can allow two devices to communicate from a distance through a direct connection with the fiber-optic line. These simple types of adapters are often referred to as mating sleeves because they allow two cables to connect to one another. Some of these common line to line connectors are also built to connect three or four cables together.

Fiber optic connectors are available in many different models. Each model works with a specific type of fiber optic cable. This makes it even more important for the user to be sure of the type of fiber optic cable he/she is working with in order to make a compatible connection. Fiber optic cables must also be installed properly to ensure that fiber optic cores line up with each other and allow light to pass through them.

Fiberstore offers a wide selection of connector adapter, including FC, SC, ST, LC, MT-RJ, MU, simplex, E2000, FC/APC,duplex, SC/APC, LC/APC, E2000/APC ,quad, mating sleeves, hybrid fiber optic adapters, single mode fiber optic adapters and multimode fiber optic adapters.

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May 22, 2013

A List Of Fiber Optic Transceivers

Fiber optical module is seen as a three sets of performance criteria: transceiver, receiver, and transmitter. The transmitter converts electrical signals into light signals, with the fiber optical transmission, the receiving end of the optical signals are changed into electric signals.

According to the optical module function, fiber optic transceivers could be split into fiber optical receiver module, fiber optical transmission module, fiber optical transceiver module and fiber optical transponder module.

Fiber optic transceiver module main function would be to achieve the conversion between optical-electrical and electrical-optical, including optical power control, modulation transmission, signal detection, IV conversion and limiting amplifier decision regeneration, additionally, there are security information query, TX-disable along with other functions. Common fiber optic transceiver modules are: SFP, SFF, SFP , GBIC, XFP, 1x9 and so on.

Fiber optical transmission module not just has photoelectric conversion function, but additionally it integrates lots of signal processing functions, for example: MUX / DEMUX, CDR, function control, energy acquisition and monitoring. Common fiber optical transmission modules: 200/300pin, XENPAK, and X2/XPAK the like.

The optical transceiver module, referred to as optical module or fiber optic module, is an important device in fiber optical communication system.

According to the main parameters of fiber optical module

Pluggable: hot pluggable and non-hot pluggable;

Package: SFP, GBIC, XFP, Xenpak, X2, 1X9, SFF, 200/3000pin, XPAK

Transmission Rate: Transmission rate refers to the quantity of gigabits transmitted per second, per unit of Mb/s or Gb/s. Optical modules cover the following main rate: low rates, Fast, Gigabit, 2.5G, 4.25G, 4.9G, 6G, 8G, 10G and 40G.

According to the optical module package

1.XFP (10 Gigabit Small Form Factor Pluggable) is a hot pluggable transceiver, is independent communication protocol optical transceiver for 10G bps Ethernet, SONET / SDH and Fiber Channel.

2.SFP transceivers (small form factor pluggable), currently are the most favored.

3.GigacBiDi series of single-mode bidirectional optical module, uses WDM technology, achieving a fiber optic transmits two-way information (indicate point transmission, especially for fiber optic resources are insufficient, need a fiber bi-directional signal transmission). GigacBiDi series include SFP Bidirectional (BiDi), GBIC Bidirectional (BiDi), SFP Bidirectional (BiDi), XFP Bidirectional (BiDi), SFF Bidirectional (BiDi) and so on.

4.RJ45 transceiver is electrical port small form factor pluggable module, also referred to as the ability module or electrical interface module.

5.SFF According to their pin, SFF transceivers are divided into 2x5, 2x10, etc.

6 Gigabit Ethernet Interface Converter (GBIC) module.

7 Passive Optical Network PON (A-PON, G-PON, EPON OLT) optical module.

8.40Gbs high-speed optical modules.

9.SDH transmission module (OC3, OC12, OC4 .

10 Storage modules, such as 4G, 8G, etc.

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May 21, 2013

RS232/422/485 Serial Over Ethernet Converters

Ethernet to serial converter allows large quantities of knowledge to become transferred through each serial port coupled with a quick Ethernet connection. The elevated control and automation of serial over ethernet converter, through your existing network infrastructure, can help you reduce your costs and improve efficiency, yet smart enough for just about any office environment.

Key Features Of Ethernet To Serial Converter:
Cable replacement using serial-Ethernet;
Have virtual COM ports connect PC/servers to remote serial devices over Ethernet;
Communicate to multiple serial devices at the same time across a network;
Use serial-Ethernet to exchange existing serial dial-up modem connections;
Manage the serial console port on remote equipment (Servers, routers, switches, etc) over Ethernet or through of band connections;
Use serial-Ethernet to connect serial PLCs to Ethernet;
Connect serial signage equipment over Ethernet with serial-Ethernet adapters.

All serial converters feature a minimum of an Ethernet port and software-selectable RS232/422/485 serial interfaces, and meet IEC safety (IEC 60950-1) and EMC (EN 61000) standards. They support various protocols for serial data transmission including Modbus/TCP, raw serial data over UTP, IPv4 and IPv6. The 4 and 8 port RS422/485 devices, as with the rest of the range, will enable connection across a network with no loss of reliability or signal integrity. The Port3 connector signal level is of RS485 or RS232. This port could be stated as a general CPU module communication port and useful for peripheral applications.

One of the leading differences between RS232 Modem and RS422/RS485 is the signaling mode. RS232 is unbalanced while RS422/RS485 is balanced. An unbalanced signal is presented by a single signal wire in which a voltage level on that one wire can be used to transmit/receive binary 1 and 0: it can be considered a push signal driver. On the other hand, a balanced signal is presented by a set of wires where a voltage difference can be used to transmit/receive binary information: kind of a push-pull signal driver. In a nutshell, unbalanced voltage level signal travels slower and shorter than the usual balanced voltage difference signal.

RS485 converter may also be termed as RS485 Multidrop LAN because it can connect several devices in a LAN network environment. These devices are linked to a single pair wire. Transmit and receive share the same two wires.

Serial to LAN bridge mode allowing transparent bridging of serial devices over LAN, while using 3 Mbps fast UART. Full Internet controller mode allows a simple microcontroller to use the module's protocol and application capabilities to do complex Internet operations for example e-mail, FTP, SSL, embedded web server and others. It also provides a firewall, providing a security gap between your application and the network. PPP modem emulation mode allows existing modem designs currently using PPP to connect transparently over LAN.

With robust metal housings and fanless cooling, the converters are claimed to provide benefits and features to match applications such as discrete manufacturing, processing operations, power generation and distribution, and building automation. Fiberstore is a leader manufacturer in serial connectivity, has introduced RS422 converter/ RS485 converter versions of their 4 and eight port Ethernet to serial products. As with all our Ethernet to Serial port devices, these new products are made to provide easy, fast and reliable connections between networked computers and devices with serial ports- be it across the desk or around the globe.

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May 20, 2013

LC Connector Among Fiber Optic Connectors

The fiber optic connector is defined as the plug portion equipped with a tunable cylindrical ferrule while incorporating unique trigger and latch features. Better connectors lose hardly any light because of reflection or misalignment of the fibers. The LC Connector is established due to its small size and its very reliable connecting quality. Within the last five years it is the most popular connector in the world. LC means Lucent Connector also it was created by Lucent Technologies. The LC connector has good performance and it is highly favored for single-mode.

The LC Connector Product is a strong optical connector made to support Telecom and Datacom networks. The connector family includes although not restricted to Jumper Connectors, Behind the Wall connectors (BTW), Adapters, Attenuators, Jumpers and an range of connector modules and panels. LC connector applications include Telecommunications networks, Local area networks, Information systems networks, Cable television, Fiber-to-the-home, and Premises distribution.

Features of LC Connectors

Half the dimension of regular connectors;
Push & pull mechanism like RJ connectors;
Single set design;
Polarized;
Complies with industry standards;
Detachable clips for simplex in addition to duplex connectors.

LC connector utilizes traditional aspects of a SC duplex connector having independent ceramic ferrules and housings using the overall size scaled down by half. They make things easier for movements, additions, and modifications, thus preventing additional expenses. The LC Connector uses an enhanced edition of the well-known, user friendly RJ-style telephone connector that offers a reassuring clear click when connected. The latest single set design increases the connector's strength and matches side-load requirements of standard 2.5 mm connectors. Jumper LC connectors are equipped with detachable clips, making it simpler to rectify polarity inaccuracies during termination or while duplexing simplex connectors within the field.

LC connectors have replaced SC connectors in corporate networking environments due to their smaller size; they are often found on small form-factor pluggable transceivers. LC connectors reduce space requirements by 50%, over 2.50mm ferrule connectors, without having to sacrifice performance. LC connectors can be found in industry standard beige (multimode), blue (singlemode) and green (angle polish) colors, and will accommodate 900|¨¬m buffered fiber, 1.60mm, 2.00mm, or 3.00mm jacketed cable. With its six-position tuning feature, the connector enables you to achieve unprecedented insertion loss performance by optimizing the alignment from the fiber cores. Additionally, 45° and 90° boot choices are available for 1.60mm and a pair of.00mm jacketed cable.

As you may know, fiber optic connector is a vital fiber optic component used to link two fiber optic lines together. Beside connector, addititionally there is another item, that is Fiber optic adapter with panels to connecting multi fiber optic line. Specifically, the fiber optic adapter is a small device that accustomed to terminate or link the fiber optic cables or fiber optic connectors between two fiber optic lines.

A fiber optic connector terminates at the end of a fiber optic cable and is used when you need a way to connect and disconnect the fiber cable quickly. A fiber splice would be utilized in a more permanent application. The connectors give a mechanical connection for the two fiber cables and align both cores precisely so the light can go through with little loss. LC connectors look much like miniature SC connectors. LC connector also offers exactly the same push/pull snap-in type secure. The distinctive combination of small sizes and also the click of connectivity result in the LC Connector an ideal pick for today's high performance networks.

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May 17, 2013

J4859A J4858A And J4858B As My Know

Fiberstore offers a full-range of other brands compatible transceivers, for example Cisco, HP, Juniper, Dell, Extreme, Force10, 3Com, Alcatel-Lucent, Allied Telesis and so on. Now I would like to introduce the list HP modules at Fiberstore online.

HP transceiver modules, including HP SFPs, HP XENPAKs, HP XFPs, and HP X2s. HP transceiver modules are hot-swappable devices, which combine the capabilities of the transmitter and receiver into a single module. The hot-swappable element enables you to change between transceiver modules, without switching off the ability to your device; for instance you could change to a HP transceiver module having a different optical wavelength, or from one which assists copper wire to support for optical fiber if required. All of the HP transceivers are guaranteed compatible for all HP switch and router products.

HP transceiver modules can be found which support data rates from 100Base (100 Mbit/s), as much as the 10G Base (10 Gigabit/s). Transceiver modules can also be found for various types of cabling for example cat 5 copper, and different grades of optical fibers so please ensure that you are acquiring the correct type of transceiver for network.

You have a range of HP SFP transceivers at Fiberstore, including J4858A, J4859A, J4860A, J4858B, J4859B, J4860B, J8177C, J4858C, J4859C, J4860C, J9142B, J9143B, A6515A, J8177B, J9100B, J9099B, JD118B. These HP SFP modules are with different working wavelength and compatible with different SFP modules.

The HP compliant J4859A is really a 1000BASE-LX SFP 1310nm 10km transceiver module, provides a low cost high-performance connection. The HP SFP J4859A is a Class 1 laser transceiver product. The transceiver module is fully complies with the multi-sourcing agreement (MSA) that enables it to work in all MSA compatible platforms.

HP SFP J4859A Features & Specifications:
Connectivity Technology: Wired;
Application: 1000BASE-LX/LH SFP Transceiver Module;
Data Transfer Rate: 1Gbps;
Wavelength: 1310nm;
Max Distance: 10km;
Fiber Type: SMF/MMF;
Connector: Duplex LC;
DDM: Without DDM;
Operating Temperature: 0~70 °C;
Compliant with MSA SFP Specification.

HP J4858A compatible 1000BASE-SX SFP transceiver module
Data Rate: 1Gbps;
Wavelength: 850nm;
Transfer Distance: 550m;
Connector Type: LC Duplex;
Cable Type: Multi-Mode Fiber (MMF).

HP J4858B Compatible 1000BASE-SX SFP Transceiver Module
Data Rate: 1Gbps;
Wavelength: 850nm;
Transfer Distance: 550m;
Connector Type: LC Duplex;
Cable Type: Multi-Mode Fiber (MMF).

These HP SFP transceivers can be mixed and deployed with HP OEM SFP transceivers for seamless network performance and interoperability. Our cost-effective HP SFP optical modules are sent to worldwide from our factory directly.

Source from Overview HP SFP Transceivers Supplied By Fiberstore

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May 16, 2013

Cat6 Patch Panel Of Copper Network

A patch panel is really a panel created for the management of cable connections, used as the central point in a network where all the network cables terminate. Typically, the panel is the termination reason for network cabling drops that are set up in a office or residential cabling system. Patch panels are commonly found in Ethernet networks, making Cat5 patch panel and cat6 patch panel the most common, but patch panels may be used in lots of other applications.

Category 6 cable (Cat6) may be the 6th generation of twisted pair Ethernet cabling by ANSI/EIA/TIA Cat6 cable has a bandwidth of up to 250MHz and it is ideal for supporting 10 Gigabit Ethernet. Cat6 cable is backward suitable for the Cat5, Cat5e, and other lower cable standard and features with more strict specifications for crosstalk and system noise. It can be used for 10BASE-T Ethernet, 100BASE-TX Fast Ethernet, 1000BASE-T/1000BASE-TX (Gigabit Ethernet) and 10GBASE-T (10-Gigabit Ethernet).

Options that come with Cat6 patch panel

Cat6 patch panels, are modular design and fit for that 19 inch standard equipment. The cat6 patch panel performance is according to and far exceed TIA/EIA568B.2 standard, fit to make use of with various types of category 6 wires and accessories. Cat6 patch panel features high-density and provides the performance required for present and next generation data communications networks and applications. These high-density panels can be found in 12- through 72-port versions and feature enhanced front and rear labeling features for simple circuit identification.

Cat6 patch panels are constructed for optimum durability and strength and have a fully enclosed, 6-port modular design, which supplies flexibility and protection of printed circuitry during termination. A newly designed RJ-45 contact configuration provides enhanced plug to telephone jack connection integrity for superior reliability. Rear termination is made quick and easy using a 4-pair inline 110 type connector suitable for our Cat6 multi-pair impact tool to lessen installation time or perhaps an industry standard single position 110 or Krone termination tool.

Structure Of Cat6 patch panel

Around the front side of the patch panel you will find jacks made to receive short patch cables, while on the rear of the panel you will find either jacks or punch down blocks that receive the connections of longer and more permanent cables. The assembly of hardware is arranged to ensure that numerous circuits show up on jacks for monitoring, interconnecting, and testing in a convenient and versatile manner. This offers the convenience of allowing technicians to quickly alter the circuit of select signals without using expensive dedicated switching equipment. Patch panels are usually rack mountable, although some are designed to be mounted directly onto a wall.

Application Of Cat6 patch panel

Cat6 patch panels are designed to for top speed LAN (Local Area Networking) transmission rates as much as 1 Gigabit and exceed TIA/EIA-568-B.2-1 component, permanent link and channel level performance specifications providing usable bandwidth beyond 250MHz and are backward suitable for lower level cabling systems. Cat6 patch panels support both T568Aand T568B wiring configurations using an easy to read color-coded wiring label.

The Cat6 patch panel has numerous advantages. First, it will help gather the various category6 wires together into one panel. Second, the colour coding make the organizing of cables(like cat6a cable, cat 7 cable) easy and the whole system neat, and cable distribution is simple. Third, they're in standard size and may fit different kinds of 19 inch devices. Commercial and residential contractors and installers turn CAT 6 to future proof network infrastructures.

Source from The Promising Cat6 Patch Panel

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May 15, 2013

Wide Selection Of Fiber Media Converters

A fiber optic media converter uses optical fiber because the media, receives data signals, sent via one media, convert the signals after which transmit the signals into a different type of media. It is primarily used in connecting older copper-based cabling systems, for example twisted pair, to the faster fiber-optic networks. The converters are generally used in the large metropolitan area networks (MANs), as well as large business networks, referred to as enterprise networks nowadays.

Fiber Media Converter supports a number of communication protocols including Ethernet, Fast Ethernet, Gigabit Ethernet, in addition to multiple cabling types such as twisted pair, multi-mode and single-mode fiber optics. On some devices, Simple Network Management Protocol (SNMP) enables proactive management of link status, monitoring chassis environmental statistics and sending traps to network managers in case of a fiber break or perhaps link loss on the copper port.

Media converter types vary from small standalone devices and PC card converters to high port-density chassis systems that offer many advanced features for network management.

Ethernet Media Converter

Typical type like Ethernet Media Converter, these converters usually are utilized in Ethernet for connecting Ethernet link, which usually use UTP cables to optical fiber signal, which is transmitted via optical fiber cables. An Ethernet to Fiber Media Converter can also be used where there is higher level of electromagnetic interference or EMI which is a common phenomenon present in industrial plants. This interference can cause corruption of information over copper-based Ethernet links. Data transmitted over fiber optic cable however is completely immune to this kind of noise. An Ethernet to Fiber Optic Converter therefore allows you to inter-connect your copper-ethernet devices over fiber ensuring optimal data transmission over the plant floor.

The most common type fiber to ethernet media converter is one that's a standalone device with its own power adapter. They convert fixed speed Fast Ethernet, Gigabit or rate converting 10/100/1000 UTP links to 100Base-FX or 1000Base-X fiber connections. In which a large density of media converters are required, chassis-based systems can also be found. These rack mountable units can house up to 19 managed or unmanaged media converter modules providing redundant power for AC and 48v DC environments.

10/100/100M Gigabit Ethernet Media Converter

The 10/100/100M Gigabit Ethernet Media Converter series is designed to satisfy the massive needs for network deployment capable to extend a copper based Fast network via fiber cable to some maximum distance as much as 100KM.

Single Mode To Multimode Fiber Converter

The single mode to multimode converter is straightforward and reliable device allowing you to connect multimode fiber traffic to single mode fiber devices and links. Begin using these bi-directional fiber media converters individually to connect multimode and single mode devices, or perhaps in pairs at each end of long-distance single mode fiber links. These converters support multimode signal transmitted by 850nm and 1310nm and single mode signal with 1310nm and 1550nm, it is widely used in LANs, WANs and fiber optic data communications.

Media Converter Chassis

Media Converter Chassis is principally used to manage the different media converters, all the converters connected to the chassis will share same power, so that they are simple to manage. Typical fiber optic converter chassis are with 14 slots or 16 slots. Normally the 14 slot fiber optic chassis is perfect for stand-alone type converter, 16 slot fiber optic converter chassis is for card type converters. All the converters installed on the chassis will share one power supply and therefore you can easily manage. Typically, power supply of the chassis can be 220V or -48V optional. Chassis type fiber optic converters are plug and play, they use the traditional UTP cable to link the Ethernet ports and usually with FC or SC fiber optic interface. Typical type is a 19-inch size rack-mounted fiber converter chassis.

Source from Mainstream Fiber Optic Media Converters

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May 14, 2013

Buying Fiber Connector Guide

Fiber connector can be used to become listed on optical fibers in which a connect/disconnect capability is required. Optical fibers terminate fiber-optic connections to fiber equipment or join two fiber connections without splicing. Fiber Optic Connector is an important components utilized in the fiber optic network. It is also the important thing part used in cat 7 cable and fiber optic pigtail. Fiber connectors are flexible, lower loss, less expensive, simpler to terminate or solved another perceived problem.

The basic connector unit is a connector assembly. Main components include a ferrule, sub-assembly body, cable, stress relief boot and connector housing. Modern connectors typically use a "physical contact" polish on the fiber and ferrule end. This can be a slightly curved surface, to ensure that when fibers are mated only the fiber cores touch, not the surrounding ferrules. Fiber-to-fiber interconnection can consist of a splice, a lasting connection, or perhaps a connector, which is different from the splice in its ability to be disconnected and reconnected.

Every fiber connection has two values:
Attenuation or insertion loss;
Reflection or return loss.

Optical fiber connectors were introduced with fiber optic technology within the 1980s. Fiber optic connector types are as various as the applications that they were developed. Different connector types have different characteristics, different advantages and disadvantages, and different performance parameters. Typical connectors are rated for 500-1,000 mating cycles. The main differences among kinds of connectors are dimensions and techniques of mechanical coupling. Generally, organizations will standardize on a single type of connector, depending on what equipment they commonly use. Different connectors are needed for multimode, and for single-mode fibers. Countless optical fiber connector types can be found, only several represent a lot of the market. Widely used fiber connectors range from the SC connector, LC connector, FC connector, ST connector, FDDI connector and E2000 connector.

LC connectors are sometimes called "Little Connectors".
MT-RJ connectors look like a miniature 8P8C connector--commonly (but erroneously) referred to as RJ-45.
ST connectors make reference to using a "straight tip", because the sides from the ceramic (which has a lower temperature coefficient of expansion than metal) tip are parallel--as opposed to the predecessor bi-conic connector which aligned as two nesting frozen treats cones would. Other mnemonics include "Set and Twist", "Stab and Twist", and "Single Twist", referring to how it's inserted (the cable is pushed into the receiver, and also the outer barrel is twisted to lock it into place). They are also referred to as "Square Top" because of the flat end face.
SC connectors, being square, have a mnemonic of "Square Connector", which many people believe to be the correct name, as opposed to the more official "Subscriber Connector". Other terms often used for SC connectors are "Set and Click" or "Stab and Click".

Features of good connector design:
Low insertion loss;
High return loss (low amounts of reflection at the interface);
Easy installation;
Low cost;
Reliability;
Low environmental sensitivity;
Simplicity of use.

Source from Basical Information Of Fiber Connector

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May 13, 2013

Questions About Fiber Optic Modem

The fibre optic modem (or FOM), connects an electronic device such as a computer to some network or the Internet, provides electrical to optical conversion of electronic communication and data signals for transmission using tactical fiber optic cable assemblies.

How Does Fiber Optic Modem Work?

Fiber optic modems receive incoming optical signals over fiber optic cables and convert them back to their original electronic form for full duplex transmission. Together with the tactical fiber optic cables, the FOM supplies a rugged, secure, and simple deployable optical link.

What is the maximum distance that the fiber optic modem can go?

The utmost distance a modem will go is the distinction between receiver sensitivity and transmit power of the fiber optic modem, divided by the transmission loss of the fiber used. For example, a basic single-mode OSD815 video system?¡¥s transmitter power is larger than -10dBm and its receiver sensitivity is better than -29dBm therefore the difference of 19dB at 1310nm allows operation over at least 45km. Note this is very poor design because there is no allowance for any link margin.

What's Fiber Optic Modem Used For?

Fiber optic modems are often used in data communication systems to bridge long distances at high data rates. Fiber optic systems are particularly immune to electromagnetic interference and therefore very suitable for harsh industrial environments. They are able to transmit data at as much as 12 Mbit/s over distances as much as 80 km with respect to the fiber type. They range from simple devices with just a few ports to multiplexers capable of handling large-scale communication networks. For instance, fiber optic cables are utilized by a few networks for that server to building connection, while cat 7 cable is used for the wiring within the building. To transform these two types of cables you need a fiber optic modem.

What Are The Available Types Of Fiber Optic Modem?

Fiber optic modems are the ideal whenever using large amounts of information. Fiber optics allows data to be transferred efficiently. Available in single mode or multimode models, you need to choose the best one for your needs.

E1 fiber optic modem can be used for modulating a framing or non-framing E1 data signal straight into single mode or multimode optical fiber for a transmission via fiber optic cable line. At another end from the optic cable, optical signal is demodulated into a framing or non-framing E1 data signal. E1 interface might be directly associated with the E1 interfaces of image and knowledge terminals or the WAN ports of MUX, switch and router for a dedicated network setup or perhaps a LAN connection.

V35 fiber optic modem converts V 35 electrical signal into optical data stream for transport over single mode or multi-mode fiber optic cables. At the opposite end of the fiber, the optical stream is converted back to electrical signals of the appropriate interface such as G.703 & V.35. The fiber optic modem extends the transmission distance as much as more than 100Km. The frame format of MOD-V.35 is frame / unframed for E1, so it may be used to transmit E1 signal of frame video or unframed video.

RS232 converter, RS485 converter and RS422 converter (RS means "recommended standard") would be the standards introduced by The Electronics Industry Association to ensure compatibility from the data transmission between equipment produced by different manufacturers. RS232 Modem is perfect for single ended data transmission from one transmitter to 1 receiver at relatively slow data rates (as much as 20K bits/second) and short distances. RS232 Ethernet converter is widely used as possible see them in the common desk computer cases. RS422 converter may be the standard for extended data transmission distances and better Baud rates in contrast to RS232. R485 converter standard meets the requirements for a truly multi-point communications network, and also the standard specifies as much as 32 drivers and 32 receivers on a single (2-wire) bus.

Source from Things You Should Know About Fiber Optic Modem

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May 10, 2013

Network Tester For Cable Problems

A network tester is made to calculate how well your high-speed network cables are performing. As you know, poor performance during these cables can result in harm to work, poor Internet access, and general disruption to the network.

Main Options that come with Network Tester

Network tester has 2 different boxes, that are separate. These boxes would be the transmitter and receiver. A fundamental tester includes a source of electrical current, a measuring device that shows if the cable is nice, along with a connection between the two, usually the cable itself.

Network cable tester could be a simple apparatus that merely identifies whether current flows through the cable, or it might be a professional-level, complex device that provides more information that helps find out the problem. Professional-level network cable testers might not only tell if an open circuit exists, but may identify where the break is situated. Some also identify the gauge of wire used and may generate their own signal to check for interference.

Common Problems Of Network Cables
There are a variety of problems which may be taken care of by using the network tester, and it will certainly enable you to save your time looking for software or hardware solutions.

If your network isn?¡¥t working correctly, the issue is frequently user error or other problems. It'll rarely be a faulty cable. A network cable tester is more commonly used to inform whether an area cable works before it is connected. The cabling should first be examined visually to recognize any obvious problems. If everything looks correct, a network cable testing device may then be used.

Basic network cable testers can test for straightforward connectivity issues but may not identify other problems that create the cable to malfunction. Cabling may not work when it's near a source of interference or maybe the cable is simply too long. Intermittent faults may develop that don't appear when the cable is tested. Sometimes the problem is not sustained long enough to show up around the tester.

How To Use A Network Tester?
Step 1. Connect the tester

Plug the network cable into both ends of the box, one into the transmitter, and one into the receiver. These boxes really are a type of your computer network, which means you will be able to easily locate which box is which. Make sure that your cables are fully plugged in before you go to the test.

Step 2. Turn on the tester

Switch on the network cable tester device. The tester will be sending an indication in one end of the box to the other, and will also be the message which is relayed through the cable, almost as much ast would exist in your computer network. Keep your network cable tester connected to the cable at all times throughout the test, otherwise it will not work.

Step 3. Read the report in the tester

While the message has been passed in one end of the cable to the other, the network cable tester will be examining the message for faults, and checking that the message continues to be properly received at the opposite end. If the tester concludes that this is not the case, which something went wrong, you will notice that the tester displays numerous red lights. The differences between the red lights and the green lights which mean that all is working well may not be the same from network cable tester to tester, but you should be able to work out just what the issue is with your cable by reading the instructions.

Step four. Browse the problem

The various lights on your tester are utilized to send a signal to the person operating the machine. Your manual will give you an entire run-down of the items the different patterns of lighting means, and when there is any problem with your cable that needs to be addressed. Once you have found the problem, take away the cable in the boxes, and return the tester to a rut.

For cable testing, the network tester provides full cabling testing, displaying wire map, ID, and faults, including shorts, opens, miswires, split pairs, and reverses. The full featured network tester also measures cable length and generates tone levels for signal tracing and cable identification on all pairs, a selected pair, or a selected pin. Fiberstore is a professional manufacturer supplies all sorts of fiber optic tools, including network cable tester, cable stripper, punch down tool, phone line tester, fiber cable stripper, cable crimping tool, etc.

Source from Using Network Tester To Identify Cable Problems

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