2012年8月29日星期三

Fiber media converter using note


Fiber media converter have a variety of different classification, but note that most of the actual use of class distinction according to different fiber optic connectors: SC connector media converter and FC / ST media converter .
Fiber media converter to connect the different devices must use different ports.
1, the fiber converter to 100BASE-TX equipment (switches, hubs) connection:
Verify that the length of twisted pair up to over 100 m;
RJ-45 port to connect one end of the twisted pair to fiber converter (Uplink port), the other end of the set (switches, hubs) 100BASE-TX RJ-45 port (port).
2, the fiber converter to 100BASE-TX device (NIC) connections:
Verify that the length of twisted pair up to over 100 m;
RJ-45 port to connect one end of the twisted pair to Fiber media converters (100BASE-TX port), the other end of the RJ-45 port, network card.
3, fiber converter to 100BASE-FX connection:
Verify that the fiber length does not exceed the range of equipment to provide distance;
SC / ST connector, one end of the fiber with fiber media converters SC / FC / ST connector on one end to connect the 100BASE-FX device.
Also need to add is that many users in the use of fiber media converters that: as long as the length of the fiber is in the single-mode fiber or multimode fiber can support a maximum distance can be used normally. In fact, this is a wrong perception, this understanding is correct only when connected devices are full-duplex device, when there are half-duplex device, the optical fiber transmission distance there are certain restrictions.

2012年8月28日星期二

How to buy fiber media converter


An important factor in the actual procurement, enterprises consider price, especially small and medium enterprises and SOHO office. We believe that a few hundred dollars of products sufficient to meet the general needs of enterprises, except for special industries such as telecommunications, military and so on. Of course, in addition to price, but also must consider the product with the surrounding environment compatibility with and the product itself, the stability, reliability, otherwise the price is low, buy also no use. In order to be able to pick a good product, and to procurement points are listed below:
(1) if it can support full-duplex and half duplex, because some chips of the market, using the full-duplex environment, can not support half-duplex, connected to the other brands of switches (N-Way Switch) or hub (HUB), using half-duplex mode, will result in a serious collision and packet loss.
(2) whether it is done connection test with other fiber optic connectors, currently available fiber media converter more and more, such as the mutual compatibility of the different brands of the fiber converter not done in advance of the test also have lost packet transmission time is too long, suddenly fast suddenly slow phenomenon.
(3) whether it has to prevent loss of safety devices, many manufacturers in the production of fiber media converter, in order to reduce costs, often using the register data transfer mode, the greatest disadvantage of this way, data transmission instability, resulting in packet loss, and the best way is to use a buffer circuit design, safe to avoid data loss.
(4)whether the product has to do temperature testing, fiber media converter used to produce high fever, coupled with the installation environment is usually outdoors, so the temperature is too high (not greater than 50 ° C), fiber media converter whether the normal operation, users are very important factors to be considered! The maximum allowable operating temperature is how much? This very worthy of our attention to the needs of long-running equipment.
(5)whether the product is in compliance with IEEE802.3 standards? Such as fiber media converters comply with IEEE802.3 standard, if you do not meet the standard, then certainly there will be compatibility issues.
(6) to assess the manufacturer’s service, Imagine if your equipment is broken, the factory a few days do not solve the problem, your loss is how much. Therefore, in order to make after-sales service timely early response, it is recommended to select the region has superb strength, technical strength, reputable professional company. Only the more experienced professional technical engineers to troubleshoot and detect failures of the more advanced tools
(7) When you purchase carefully observe the appearance of the product, take a look at the fiber module shell whether old, whether shiny or whether the signs of wear. On the market today in order to reap huge profits, many manufacturers use in fiber media converters, optical switches and other equipment used or old fiber optic module, the use of these second-hand fiber-optic module products, caused a great deal of hidden network transmission, such as: Fiber module optical contamination of the signal transmission must be affected, the decline in the quality of transmission. Transmission quality, result in reduced receive sensitivity can also cause data loss phenomenon. Coupled with the use of used fiber transceiver, will be discounted on the life of component failure, etc. at any time.

2012年8月27日星期一

How to choose a fiber media converter


Fiber media converter data transmission break the limitations of the one hundred meters of Ethernet cable, rely on high-performance switching chips and large-capacity cache, in a truly non-blocking transmission switching performance at the same time, it also provides a balanced flow, isolation, conflictand detection of errors and other functions to ensure high security and stability of data transmission. The fiber media converter products for a long time will remain an indispensable part of the actual network set up, I believe that future fiber media converter will be toward the high intelligence, high stability, managed, low-cost direction to continue to develop.
How to choose a fiber media converter
Fiber Converter is one of the LAN connection device, it is necessary to consider the mutual compatibility with the surrounding environment, and product stability, reliability.
1, whether to support full-duplex and half duplex?
Some chips on the market currently only use full-duplex environment, can not support half-duplex, such as the receipt of other brands of switches (SWITCH) or hub (HUB) And it is using half-duplex mode, will causeserious conflict and loss.
2, Connection test with other fiber media converter is done or not?
An increasing number of currently available media converter, such as the mutual compatibility of different brands of media converter in advance did not make the test will produce loss, the transfer time is too long, suddenly fast and slow phenomena such as.
3,Whether there is a safety device to prevent packet loss?
Some vendors in the manufacture of fiber media converter, in order to reduce costs, often the data transfer mode register (Register), this approach is the biggest drawback is instability in the transmission, packet loss, and the best is to use the buffer line.can be safe and to avoid data loss.
4,Temperature adaptability?
Fiber media converter, when used, will produce high fever, high temperature (not greater than 85 ° C), fiber media converter is working properly. Is very worthy of the factors that customers consider!
5,conforming to the IEEE802.3u standard?
Such as fiber media converter comply with IEEE802.3 standard, that the delay time control in 46bit, it means that the transmission distance of fiber media converter will be shortened if more than 46bit!
Fiberstore supply all kinds of fiber media converter, 10/100Base Ethernet Fiber Media Converters, 1000Base Gigabit Fiber Media Converter, SFP Fiber Media Converter, Options in singlemode dual fiber, multimode dual fiber and singlemode single fiber. We also supply Media Coverter Chassis, like 14 slot media converter chassis and 16 slot media converter chassis, used to manage the various media converters.

2012年8月23日星期四

Features and Superiority of fiber media converter


The fiber media converter typically have the following basic characteristics:
1. Ultra-low latency data transfer.
2. The network protocol is completely transparent.
3. Using a dedicated ASIC chip data wire-speed forwarding. Programmable ASIC will focus on the multiple functions onto one chip, with the advantages of simple design, high reliability, less power consumption to make equipment for higher performance and lower cost.
4. Rack-mounted equipment can provide hot-swappable, easy to maintain and without interruption to upgrade.
5 Can network management equipment to provide network diagnostics, upgrades, status reports, exception reports and control functions, can provide a complete operating log and alarm log.
6. Equipment, the use of 1 +1 power supply design, and support for ultra-wide supply voltage, power protection and automatic switching.
7. Support for extra-wide operating temperature range.
8. Support a full range of distances (0 to 120 km)
Superiority
Currently referred to the media converters, people often can not help but compare the fiber media converter with switches with optical ports.
The advantages of fiber media converter compare to optical port switch.
First, fiber media converter and ordinary switches on price far cheaper than the optical port switch, in particular, some light-port switch in the optical transceiver is inserted loss of one or several electrical interface, which allows operators to a large extent reduce the upfront investment.
Secondly, the light switch module mostly there is no uniform standard, the optical module damage will need to be replaced from the original commercial, the same module, so a great deal of trouble to the maintenance of late. On the interconnection between devices from different manufacturers of fiber media converter is no problem, once the damage can also use other vendors’ products to replace, maintenance is very easy.
Also, fiber media converter transmission distance is more complete than optical port switch products. Of course, the optical port switch has an advantage in many ways, such as unified management, unified power supply was no longer discussed.

2012年8月22日星期三

Fiber media converter classification


The fiber media converter products must strictly comply with 10Base-T, 100Base-TX, 100Base-FX, IEEE802.3 and IEEE802.3u and other Ethernet standards, In addition, EMC anti-electromagnetic radiation shall comply with FCC Part15.
With the development of fiber media converter, there are different Classification for fiber media converter.
Divided by the optical fiber can be divided into multi-mode fiber media converter and single mode fiber media converter.
The media convertercan transmit distance is not the same, due to the use of fiber, multimode transceiver transmission distance of 2 km to 5 km, while the single-mode media converter coverage from 20 km to 120 km. Should be noted that due to the different transmission distance, fiber media converter transmit power, receiver sensitivity and the use of wavelength will be different.
Such as the 5 km fiber-media converter transmit power is generally -20 ~-14db between the receiver sensitivity of-30db, use 1310nm wavelength; 120 km of fiber media converter transmit power and more between -5 ~ 0dB, the receiver sensitivity -38dB, the wavelength of 1550nm.

Divided by Working level / rate points can be divided into single-10M, 100M fiber media converter, 10/100M adaptive fiber media converter and 1000M fiber media converter.
Single 10M and 100M fiber media converter products at the physical layer, this layer media converterr products by bit to forward data. The forward mode with fast forwarding, transparent high latency advantages of low, suitable for the rate is fixed the link, while such devices without a consultation process before the normal communication, and therefore compatible and stability to do better.
10/100M fiber media converter to work in the data link layer, this layer of media converterto use a store-and-forward mechanism, so that forwarding mechanism received a packet should read the source MAC address, the purpose of MAC address and the data payload, and CRC Cyclic redundancy Check after the packet is forwarded out. Store and forward the benefits of a number of error frames can prevent spread in the network, taking up valuable network resources, but also can prevent packet loss due to network congestion caused by the data when the data link is saturated store-and-forward can be will not be able to the data transmitted first on the the transceiver cache, waiting for the network is idle and then forwarded. This will not only reduce the possibility of data conflict to ensure the reliability of data transmission, 10/100M fiber media converter is suitable for work on a fixed link rate.
1000M fiber media converter according to the actual need to work in the physical layer or data link layer, these two market 1000M fiber media converter.
Classification by type of management
Unmanaged Ethernet media converter: Plug and Play hardware DIP switch to set the electrical port mode
Managed Ethernet media converter: support carrier-grade network management
According to the number of fibers
Can be divided into single fiber and fiber media converter, and dual-fiber media converter. As the name implies, the single-fiber devices can save half of the fiber, to receive and send data in an optical fiber, the fiber tension is very applicable. These products using the WDM technology, the use of wavelength, multi-1310nm and 1550nm. With the growing number of single fiber optical transceiver use, the product is mature and stable.

Fiber media converter classification


The fiber media converter products must strictly comply with 10Base-T, 100Base-TX, 100Base-FX, IEEE802.3 and IEEE802.3u and other Ethernet standards, In addition, EMC anti-electromagnetic radiation shall comply with FCC Part15.
With the development of fiber media converter, there are different Classification for fiber media converter.
Divided by the optical fiber can be divided into multi-mode fiber media converter and single mode fiber media converter.
The media convertercan transmit distance is not the same, due to the use of fiber, multimode transceiver transmission distance of 2 km to 5 km, while the single-mode media converter coverage from 20 km to 120 km. Should be noted that due to the different transmission distance, fiber media converter transmit power, receiver sensitivity and the use of wavelength will be different.
Such as the 5 km fiber-media converter transmit power is generally -20 ~-14db between the receiver sensitivity of-30db, use 1310nm wavelength; 120 km of fiber media converter transmit power and more between -5 ~ 0dB, the receiver sensitivity -38dB, the wavelength of 1550nm.

Divided by Working level / rate points can be divided into single-10M, 100M fiber media converter, 10/100M adaptive fiber media converter and 1000M fiber media converter.
Single 10M and 100M fiber media converter products at the physical layer, this layer media converterr products by bit to forward data. The forward mode with fast forwarding, transparent high latency advantages of low, suitable for the rate is fixed the link, while such devices without a consultation process before the normal communication, and therefore compatible and stability to do better.
10/100M fiber media converter to work in the data link layer, this layer of media converterto use a store-and-forward mechanism, so that forwarding mechanism received a packet should read the source MAC address, the purpose of MAC address and the data payload, and CRC Cyclic redundancy Check after the packet is forwarded out. Store and forward the benefits of a number of error frames can prevent spread in the network, taking up valuable network resources, but also can prevent packet loss due to network congestion caused by the data when the data link is saturated store-and-forward can be will not be able to the data transmitted first on the the transceiver cache, waiting for the network is idle and then forwarded. This will not only reduce the possibility of data conflict to ensure the reliability of data transmission, 10/100M fiber media converter is suitable for work on a fixed link rate.
1000M fiber media converter according to the actual need to work in the physical layer or data link layer, these two market 1000M fiber media converter.
Classification by type of management
Unmanaged Ethernet media converter: Plug and Play hardware DIP switch to set the electrical port mode
Managed Ethernet media converter: support carrier-grade network management
According to the number of fibers
Can be divided into single fiber and fiber media converter, and dual-fiber media converter. As the name implies, the single-fiber devices can save half of the fiber, to receive and send data in an optical fiber, the fiber tension is very applicable. These products using the WDM technology, the use of wavelength, multi-1310nm and 1550nm. With the growing number of single fiber optical transceiver use, the product is mature and stable.

2012年8月19日星期日

The significance of the fiber media converter


Information construction by leaps and bounds, The growing demand for data, voice, image and multimedia communications, and Ethernet broadband access is mentioned more and more important position. Traditional Cat5 cable can only make Ethernet signal transmission 100 meters transmission distance and coverage can not meet the needs of the actual network environment. At the same time, the fiber-optic communications with its advantages of large capacity of information, confidentiality, light weight, small size, relay, long distance transmission has been widely used. Fiber media converter use of this high-speed fiber optic transmission media a good solution to the problem of Ethernet transmission. Direct use in some of the larger enterprises, network construction, fiber optic backbone network established for the transmission medium, the internal LAN transmission medium is generally copper wire, how to achieve local area network with fiber optic backbone connected.This requires a different port, different linear conversion between different fiber and to ensure that the link quality.
The emergence of Fiber media converter to make twisted pair electrical signals and optical signals conversion,ensure the smooth transmission of data packets between two networks, it network transmission distance limit extended to 100 km from the copper wire 100 meters (single multimode fiber). In information technology infrastructure of Fiber media converter, usually pay more attention to routers, switches, and even the network card for the node data exchange network equipment, but often overlooked media conversion such non-essential to the core of the network equipment. Especially when some of the information required in a high degree of government institutions and enterprises in the data traffic, network construction need to directly connect to the backbone network of fiber optic transmission medium, the internal LAN transmission medium typically copper wire, to ensure that packet media conversion equipment in the smooth transfer between different networks become a necessity.

Fiber media converter used in the Ethernet cable can not be overwritten, you must use the fiber to extend the transmission distance of the actual network environment, help fiber last-km line to connect to the metro and the outer layer of the network playa huge role. With Fiber media converters, also need to upgrade from copper to fiber optic, but lack of funds, manpower or time the user provides an inexpensive program. In order to ensure fully compatible with the NICs, repeaters, hubs and switches and other network equipment of other manufacturers, Fiber media converter products must strictly comply with 10Base-T, 100Base-TX, 100Base-FX, IEEE802.3 and IEEE802.3u Ethernet standard. In addition, EMC anti-electromagnetic radiation shall comply with FCC Part15. Nowadays, the major domestic carriers are great efforts to build the residential network, campus and enterprise networks, so the amount of Fiber media converter products are constantly improved to better meet the access network construction needs.

2012年8月16日星期四

DWDM – Dense Wavelength Division Multiplexing


Multiple light waves with a low loss window reuse, as opposed to the light waves of different low-loss window Coarse Wavelength Division Multiplexing Multiplexing.
DWDM: Dense Wavelength Division Multiplexing is a combination of a set of light wavelengths using an optical fiber transmission. This is the one used in the existing fiber optic backbone network bandwidth laser technology. More specifically, the technology is close spectral spacing in a specified fiber, multiplexing, a single optical carrier, in order to take advantage of the transmission performance can be achieved (for example, the minimum degree of dispersion or attenuation). In this way, given the information transmission capacity, it can reduce the total number of fiber needed.
In the same fiber, DWDM can have different wavelengths simultaneously mix and transfer. In order to ensure effective, an optical fiber into multiple virtual fiber. So, if you intend to reuse the eight optical carrier (OC), that is, a signal of the optical fibers 48 so that transmission capacity from 2.5Gb / s to 20Gb / s. At present, the use of DWDM technology, a single optical fiber can transmit data traffic to achieve 400Gb / s. With the manufacturers in each fiber by adding more channels, the terabit per second transmission speed is just around the corner.
A key advantage of DWDM is protocol and transmission speed is not relevant. Based on the DWDM network can use the IP protocol, ATM, SONET / SDH, Ethernet protocol to transfer data, processing of data flow between the 100Mb / s and 2.5Gb / s. In this way, the DWDM-based networks in the transmission of a laser channel at different speeds of different types of data traffic. From the point of view of QoS (quality of service), the DWDM-based network to cost-effective way to respond quickly to customer bandwidth demands and protocol changes.

More information from fiber optic products store : Fiberstore

Ethernet to Fiber Media Converter using


Fiber media converter can be used anywhere in the network to integrate newer technology with existing equipment to support new applications, technologies and future growth. Instead of costly, across-the-board upgrades, media converters can extend the productive life of the existing cabling as well as the active equipment.
Fiber media converters, also known as fiber transceivers or ethernet media converters, are simple networking devices that make it possible to connect two dissimilar media types such as twisted pair such as Cat 5 or Cat 6 cable with fiber optic cabling. They are important in interconnecting fiber optic cabling-based systems with existing copper-based, structured cabling systems. Fiber ethernet media converters support a variety of communication protocols including Ethernet, Fast Ethernet, Gigabit Ethernet, as well as multiple cabling types such as twisted pair, multi-mode and single-mode fiber optics. Fiber media converters can connect different Local area network (LAN) media, modifying duplex and speed settings. For example, switching media converters can connect legacy 10BASE-T network segments to more recent 100BASE-TX or 100BASE-FX Fast Ethernet infrastructure. For example, existing Half-Duplex hubs can be connected to 100BASE-TX Fast Ethernet network segments over 100BASE-FX fiber. When expanding the reach of the LAN to span multiple locations, fiber transceivers are useful in connecting multiple LANs to form one large campus area network that spans over a wide geographic area.
Ethernet media converter can increase LAN distance and protect against interference. These Ethernet media converters change Ethernet twisted pair copper wires into fiber optic signals. Fiber optic is impervious to interference and will extend the distance of a network 2km in each segment.
Benefits of Ethernet to Fiber Optic Converters
Protects your investment in existing copper ethernet-based hardware
Provides you with the flexibility to add fiber on a port-by-port basis
Enjoy the benefits of fiber without have to make wholesale changes
Fast ethernet or Gigabit ethernet to multi-mode or single mode
Ethernet to fiber and fiber back to ethernet links
Create copper-fiber connections with fiber switches

2012年8月14日星期二

Filter WDM Modules – Fiberstore new supplies


We provide filter-based wavelength devision multiplexing (WDM) filter devices that are customized to the particular wavelength bands for your special applications.
Filter WDM module is based on Thin Film Filter (TFF) technology. The Filter-Based WDM is extensively used in EDFA, Raman amplifiers, WDM networks and fiber optics instrumentation. The FWDM series is based on environmentally stable Thin Film Filters technology. The device combines or separates light at different wavelengths in a wide wavelength range. They offer very low insertion loss, low polarization dependence, high isolation and excellent environmental stability.
Our Filter-Based WDM product family covers following wavelength windows commonly used in optical fiber systems: 1310/1550nm (for WDM or DWDM optical communications), 1480/1550nm (for high-power DWDM optical amplifier/EDFA), 1510/1550nm (for DWDM multi-channel optical networks) and 980/1550nm (for high performance DWDM optical amplifier/EDFA) and 1310/1490/1550nm (for PON/FTTX/test instrument)
Single Mode Filter WDM Module
1310/1550nm Filter WDM Module
It separates or combines 1310nm and 1550nm optical signals. It enables the bi-directional communication using one single fiber.
1480/1550nm Filter WDM Module (Pump WDM)
It separates or combines pump laser and optical signals. It is used for C-band EDFA.
C Band Red/Blue Filter WDM Module
It separates or combines Red band wavelength signals and Blue band wavelength signals in C band range in DWDM systems.
C Band Supervisory Filter WDM Module
It separates or combines 1500~1563nm and 1529~15nm optical signals in fiber optics Amplifiers system.
C & L Band Filter WDM Module
It separates or combines C band wavelength signals and L band wavelength signals in DWDM systems.
L Band Red/Blue Filter WDM Module
It separates or combines Red band wavelength signals and Blue band wavelength signals in L band range in DWDM systems.
L Band Supervisory Filter WDM Module
It separates or combines 1620~163nm and 1570~1605nm optical signals in fiber optics Amplifiers system.
1510nm Drop WDM Module
It separates or Combines 1510+/-7nm from 1260~1620nm wavelength signals in optical systems.
Multi Mode Filter WDM Module
850/1310nm Filter WDM Module
It is used interference filter technology to separate or combine 850nm and 1310nm optical signals. It is used in multi-mode fiber communication, CATV and testing instrumentation.
1310/1550nm Filter WDM Module
It is used interference filter technology to separate or combine 1310nm and 1550nm optical signals. It is used in multi-mode fiber communication, CATV and testing instrumentation.
Triplexer Filter WDM Module
1. PON Filter WDM Module
1310/1490/1550nm filter WDM module used single fiber triple operation wavelength transmission technology, the 1550nm wavelength is used for downstream analog CATV, the 1310nm wavelength is used for the upstream transmission to a large number of end users, the 1490nm wavelength is use for digital downstream transmission.
2. Network Test and monitor Filter WDM Module
1310/1550/1625nm (1310/1550/1650nm) filter WDM Module enables non-intrusive testing of any fiber path on a Remote Fiber Test System. This capability is ideal for testing active fibers in service.
3. 1310/1490/1550/1625nm Filter WDM Module
1310/1490/1550/1625nm FilterWDM Module is used to combine or separate 1625nm channel with three triplex wavelength 1310nm, 1490nm and 1550nm. Using this device, 1625nm channel can be added into the existing triplex FTTH system.
Besides Filter WDM Module, We also offer CWDM Module and DWDM Module for your applications.

2012年8月13日星期一

SC connector, SC Fiber Optic Connector


Fiber Optic connector has been widely used in fiber optic transmission lines, fiber optic patch panels and fiber-optic test instruments and meters. The Fiber Connector is one of the most essential components for fiber optic communication. It mate or connect with optical devices, modules, and fibers. Fiber connector is also the key part used in fiber Patch cord and fiber Pigtail.
SC fiber products are commonly seen and SC fiber optic connectors are found on many equipment and cable assemblies. SC fiber optic connector features its easy operation, good accuracy and low cost. Below is a drawing for the simplex SC fiber optic connector.
SC fiber optic connector is a snap-in connector also with a 2.5 mm ferrule that is widely used for it’s excellent performance. It was the connector standardized in TIA-568-A, but was not widely used at first because it was twice as expensive as a ST fiber optic connector. Now it’s only a bit more expensive and much more common. It’s a snap-in connector that latches with a simple push-pull motion. It is also available in a duplex configuration.



Fiberstore offer all types fiber optic connector. The types of SC connector have: SC/UPC connector and SC/APC connector with single-mode and multimode types. They are fully compliant to the TIA/EIA-568A and Fibre Channel standards, Fiberstore SC fiber products are competitive price and good reliability.

2012年8月9日星期四

Cisco 100Base SFP compatible optical module on Fiberstore


FiberStore offers cost-effective standards-based compatible cisco SFP Transceivers. As a 3rd party OEM manufacturer, our Cisco SFP transceiver is delivered to worldwide from our factory directly. All of our Cisco SFP module are tested in-house prior to shipment to guarantee that they will arrive in perfect physical and working condition.
Our comaptible cisco module includes: multimode optical modules GLC-SX-MM; Single-mode optical module GLC-LH-SM, GLC-ZX-SM; SFP copper module GLC-T; DWDM/CWDM SFP; 2.125G SFP transceiver module; 100Base SFP module; BIDI SFP optical transceiver; SFP with DDM transceiver such as SFP-GE-S .
Cisco 100Base SFP compatible optical module on Fiberstore
GLC-FE-100LX SFP single-mode optical module (1310nm-125Mb/s-10KM-LC)
Of GLC-FE-100FX performs the the SFP multi-mode optical module (1310nm-125Mb/s-2KM-LC)
GLC-FE-100EX SFP single-mode optical module (1310nm-125Mb/s-40KM-LC)
GLC-FE-100ZX SFP single-mode optical module (1550nm-125Mb/s-80KM-LC)
Connect us : www.fiberstore.com
Phone/Fax Numbers:
Direct Line: 86-755-83003611
Fax: 86-755-83269395
Email Address
Sales: sales@fiberstore.com
Service Support: service@fiberstore.com
Corporate Address:
FIBERSTORE CO., LIMITED
5-D Inteligent Tower, Fumin Rd.,
Futian District, Shenzhen 518045, China

2012年8月8日星期三

Cisco 2.125G SFP comptaible optical modules


FiberStore is an professional manufacturer & supplier of transceivers. All of our transceivers are tested in-house prior to shipping to guarantee that they will arrive in perfect physical and working condition. We guarantee transceivers to work in your system and all of our transceivers come with a lifetime advance replacement warranty.
Cisco 2.125G SFP comptaible optical modules
DS-SFP-2G-FC-SW 1/2G the SFP multi-mode optical module (850nm-2.125Gb/s-550M-LC)
DS-SFP-2G-FC-LW 1/2G SFP single mode optical module (1310nm-2.125Gb/s-10KM-LC)
DS-SFP-2G-FC-ZW 1/2G SFP single-mode optical module (1550nm-2.125Gb/s-80KM-LC)/s-80KM-LC)
Connect us : www.fiberstore.com
Phone/Fax Numbers:
Direct Line: 86-755-83003611
Fax: 86-755-83269395
Email Address
Sales: sales@fiberstore.com
Service Support: service@fiberstore.com
Corporate Address:
FIBERSTORE CO., LIMITED
5-D Inteligent Tower, Fumin Rd.,
Futian District, Shenzhen 518045, China

2012年8月6日星期一

Difference between LC/APC connector and SC/APC connector


The difference between LC/APC connector and SC/APC connector
Firstly
The appearance different,though their all in Inserted pin bars type ,LC/APC, is half smaller than SC/APC.
LC/APC uses a 1.25mm ferrule
SC/APC uses a 2.5mm ferrule
As a result the LC/APC will enable you to have 2x the density of SC.
Sencondly
For now, the SC/APC connector is hot than LC/APC, as LC connector in high cost and technic than SC. FTTx the market is more familiar with SC/APC. Main reasons are that it is a well proven design, more rugged construction, lower cost due to Volume manufacture, additionally more innovations are based around SC for the FTTx market.
LC will get better & cheaper, but today the SC is the common choice. Unless of course you are stuck for space (For example on your active equipment).
Other voice
SC/APC and LC/APC should achieve the same performance if they are designed and manufactured to meet the specs. LC presents some challenges for craft interaction on high density frames, but connectors meeting recognized specs like IEC or the Telcordia GR-326 will perform as expected…-65dB or better for return loss should be no problem. Note that GR-326 does allow a slightly reduced load to be used for LC connectors during Transmission With an Applied Load (TWAL).
Regarding connectors made using G657 fiber, we have tested many here at Telcordia against GR-326 from various suppliers. The only consistent issue we see is with excessive fiber recess (>100nm) after environmental exposures. In most cases this is easily resolved by modifying the epoxy prepration, epoxy curring, and the polishing process. Otherwise, we have seen very good performance from connectorized G.657 drops cables and jumpers used in FTTH applications.

This infromation from fiber optic communication store