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2013 年 3 月 18 日  星期一   晴天


Useful Fiber Optic Media Converter 分類: 未分類

 Fiber Media Converter, often known as fiber transceivers or Ethernet media converter, are simple networking devices making it easy to connect two different media types for example twisted pair such as Cat 5 or Cat 6 cable which has a fiber-optic cabling network. It can be primarily utilized in connecting existing copper-based, structured cabling systems, like twisted pair and the faster fiber-optic networks. The converters can be utilized in the large metropolitan area networks (MANs), as well as large business networks, referred to as enterprise networks.

Applications
Fiber optic media converters for a number of POF/HCS fiber technologies, glass MM and glass SM are for sale for interference-free connection and coverage of long distances. With respect to the application along with the required range, distances of 50 m, 300 m, 10 km or 40 km can be covered.

Media converters may also connect to various optical fiber cables including multimode, single mode or single strand fiber cable. The fiber-optic media converter can extend up to 80 miles employing a single-mode fiber, a significantly greater distance compared to the older copper-based systems. Options exist for many distances to match the demands of a selected ethernet to fiber application. And, fiber interface connectors could be dual ST, dual SC, dual LC or single SC type.

Fiber media converters can connect different Lan (LAN) media, modifying duplex and speed settings. When expanding the reach with the LAN to span multiple locations, fiber transceivers are helpful in connecting multiple LANs in order to create one large campus area network that spans over the wide geographic area. Regarding larger LANs, fiber-optic media converters are helpful in connecting separate networks for a substantial area. It can make separate LANs operate together large LAN. It can also modify speed and duplex settings. For example, a fiber-optic converter that has switching capability can connect a network segment which utilizes half duplex, a process that allows two-way communication only one way at any given time, with a faster, full-duplex system. A full-duplex system provides for simultaneous two-way traffic. The half-duplex might be a legacy 10baseT system, along with the newer system could be 100baseT, as well as the converter will allow these phones communicate on the fiber connection.

Types
Media converter types range from small standalone devices and PC card converters to high port-density chassis systems offering many advanced features for network management. And also the 10/100/100M Gigabit Ethernet Media Converter is the hottest relating to the main fiber optic media converters.

The 10/100/100M Gigabit Media Converter series was created to meet the massive needs for network deployment and able to extend a copper based Fast network via fiber cable with a maximum distance around 100KM.

10/100/1000M SFP Media Converter can convert Optical-Electric Ethernet signals between 10/100/1000M UTP interface (TX) and 1000M optical fiber interface (FX). The standard 10/100/1000M gigabit Ethernet could be extended for the distance of 100km through optical fiber link. The performance and excellence of these products are perfect because of adopting latest Gigabit IC from USA and Taiwan. 6 Group LED indicated lights could fully monitor the running conditions of converters. It is simple for users to look at and diagnose the failure of converters.



2013 年 3 月 15 日  星期五   晴天


Overview CWDM/DWDM Mux/Demux and OADM 分類: 未分類

 CWDM/DWDM Mux/Demux and OADM are common fit in with Passive. CWDM and DWDM technology present an efficient approach to share one set of fiber strands as well as set together various communications interfaces like: 10G, SONET OC-192, STM-64, Fiber Channel 1G/2G/4G, Gigabit Ethernet, OC3/OC12 or OC48 and E1/T1, just by using different wavelengths associated with per channel. Thus they can expand the capacity with the network without laying more fiber. I would like to introduce the particular basical description of CWDM Mux/Demux, DWDM Mux/Demux and OADM.

You know, Mux (Multiplexer) products combine several data signals into one for transporting over the single fiber. Demux (Demulitplexer) separates the signals in the other end. Each signal is a some other wavelength.

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 fiber optic link.

DWDM Mux/Demux
The Dense Wavelength Division Multiplexing-DWDM Mux/Demux Modules are made to multiplex multiple DWDM channels into one or two fibers. Based on type CWDM Mux/Demux unit, with optional expansion, can transmit and receive as much as 4, 8, 16 or 32 connections of various standards, data rates or protocols over one single fiber optic link without disturbing one another. DWDM MUX/DEMUX modules offers the most robust and low-cost bandwidth upgrade on your current fiber optic communication networks.

OADM
OADM(Optical Add-Drop Multiplexer) is often a device found in WDM systems for multiplexing and routing different channels of fiber into or out of a single mode fiber (SMF). OADM was created to optically add/drop one or multiple CWDM/DWDM channels into a few fibers, provides the power to add or drop a single wavelength or multi-wavelengths from a fully multiplexed optical signal. This permits intermediate locations between remote sites gain access to the regular, point-to-point fiber segment linking them. Wavelengths not dropped pass-through the OADM and carry on towards the remote site. Additional selected wavelengths may be added or dropped by successive OADMS if required.

Ingellen supplies a wide array of passive optics. The modules are customizable with a collection of WDM/CWDM/DWDM modules and CWDM OADM or DWDM OADM . Ingellen may be the correct solutions to request guidance to be used of CWDM, DWDM or WDM technology. CWDM and DWDM Mux/Demux present an ideal balance of price and gratifaction for multiplexing and demultiplexing in Metro/Access networks.



2013 年 3 月 14 日  星期四   晴天


Fiber Optic Telecommunication Of CWDM Moudles 分類: 未分類

 CWDM (Coarse Wavelength Division Multiplexing) is really a technology which multiplexes multiple optical signals one fiber optic strand through the use of different wavelengths, or colors, of laser light to carry different signals. CWDM technology uses ITU standard 20nm spacing amongst the wavelengths, from 1270nm to 1610nm.

CWDM Compared With DWDM
Accordingly, they've got two important characteristics inherent in systems employing CWDM optical components which enable easier and so also less expensive in DWDM systems. CWDM is very easy with regards to network design, implementation, and operation. CWDM works with few parameters which need optimization through the user, while DWDM systems require complex calculations of balance of power per channel, that's further complicated when channels are added and removed or if it's found in DWDM networks ring, particularly if systems incorporate optical amplifiers.

CWDM Function
CWDM modules perform two functions. First, they filter the lighting, ensuring the desired wavelengths are widely-used. Second, they multiplex or demultiplex multiple wavelengths, which can be placed on just one fiber link. The main difference is incorporated in the wavelengths, which are used. In CWDM space, the 1310-band along with the 1550-band are broken into smaller bands, each only 20-nm wide. From the multiplex operation, the multiple wavelength bands are combined onto only one fiber. From the demultiplex operation, the multiple wavelength bands are separated from just one fiber.

Generally, a CWDM network takes two forms. A point-to-point system connects two locations, muxing and demuxing multiple signals on one fiber. A loop or multi-point system connects multiple locations, typically using Add/Drop modules.

CWDM Modules Types
CWDM Modules utilize thin-film coating and micro optics package technology. CWDM modules could decide among two main configurations: CWDM Multiplexer/Demultiplexer (CWDM Demux) modules and CWDM Add/Drop Multiplexer (CWDM OADM) modules.

Mux products incorporate a few statistics symptoms right simply for having by using a one-time fabric. Demux isolate all the symptoms in the other sorts of terminate. Any value reaches an extra wavelength.

CWDM Mux/demux are created to multiplex multiple CWDM channels into A few fibers. In a hybrid configuration (mux/demux), multiple transmit and receive signals can be combined onto a single fiber. Each signal is assigned an alternate wavelength. At each and every end, transmit signals are muxed, while receive signals are demuxed. CWDM Mux/demux is usually a flexible plug-and-play network solution, allowing carriers and enterprise companies to cheaply implement indicate point or ring based WDM optical networks. CWDM Mux/demux is modular, scalable and it's really perfectly designed to transport PDH, SDH / SONET, ETHERNET services over WWDM, CWDM and DWDM in optical metro edge and access networks.

The most popular configuration of CWDM mux/demux is 2CH, 4CH, 5CH, 8CH, 9CH, 16CH and 18CH CWDM MUX/DEMUX. 3 Single fiber or dual fiber connection for CWDM Mux/demux can also be found. These modules passively multiplex the optical signal outputs from 4 or even more electronics, send to them just one optical fiber and after that de-multiplex the signals into separate, distinct signals for input into technology at the opposite end of the fiber optic link.



2013 年 3 月 13 日  星期三   晴天


The Types Of CWDM Mux/Demux And CWDM OADM 分類: 未分類

 Coarse Wavelength Divison Multiplexer/Demultiplexer Module (CWDM Mux/Demux) can be a flexible, low-cost solution that capable of combining nine optical signals into a fiber pair. The CWDM Mux/Demux is made to interoperate with the WaveReady type of transponder and optical regenerator solutions as well as CWDM transponders and small form-factor pluggables (SFPs) used in accessible transmission equipment.

Common utilizations of CWDM technology would be the multiplexers and de-multiplexers or optical amplifiers to further improve the capacity with the fiber optic cable. The CWDM Mux/Demux modules including CWDM MUX and CWDM Demux, are made to multiplex multiple CWDM channels into a couple of fibers. Along with highly reliable passive optics certified for environmentally hardened applications, the CWDM Mux/Demux lets operators use available fiber bandwidth in local loop and enterprise architectures.

Based on the wavelength or running channels with the each signal, CWDM MUX/DEMUX includes 4CH, 5CH, 8CH, 9CH, 16CH, 18CH CWDM Mux/Demux. These CWDM MUX/DEMUX can be purchased in 19" Rack Mount or LGX module package.

4 channel CWDM MUX/DEMUX Module general features:
Low Insertion Loss;
Low PDL;
Compact Design;
Good channel-to-channel uniformity;
Wide Operating Wavelength;
Wide Operating Temperature;
From -40??C to 85??C;
High Reliability and Stability.

4 channel CWDM MUX/DeMUX Module Applications:
CWDM System;
PON Networks;
CATV Links.

CWDM provides the most economic and efficient wavelength division multiplexing solutions for metro edge and access networks. Ingellen CWDM products cover 2 channel, 4 channel, 5 channel, 8 channel, 9 channel, 16 channel and 18 channel CWDM Mux/Demux. Ingellen Technology also provides CWDM OADMs (Optical Add/Drop Module) from 1 to 16 channels for CWDM networks, including 1 channel, 2 channel, 4 channel, 8 channel and 16 channel CWDM OADM.

The CWDM OADMs are passive devices that could multiplex/demultiplex or add/drop wavelengths from multiple fibers onto one optical fiber. Through the use of CWDM technology, individual channels may be optically added or dropped from a fiber pair while allowing pass-through traffic to continue unobstructed over the bus or ring. It offers a superior low insertion loss, high channel isolation, wide pass band, cold sensitivity and epoxy free optical path.

1 channel CWDM OADM Key Features:
Add/drop ITU-T G.695- and G.694.2-compatible CWDM channels onto a fiber pair;
Suitable for utilization in outside-plant fiber splice enclosures;
Upgradeable to 8 channels per fiber;
Provides low-loss pass-through for CWDM channels;
Thermally stable passive optics require no electrical energy.

1 channel CWDM OADM Applications:
Provides fiber conservation or reclamation for CWDM wireless backhaul, broadband, along with other services;
Supports linear (bus) and ring add/drop architectures.



2013 年 3 月 12 日  星期二   晴天


Filter WDM Basics Definition 分類: 未分類

 Wavelength-division multiplexing (WDM) is currently seizing as the leading technology in point-to-point transmission links. One key device is a tunable optical filter. Important features of such a filter include low insertion loss, narrow bandwidth, high sidelobe suppression, large dynamic range, fast tuning speed, an easy control mechanism, small size, and price effectiveness. Filter WDM module will depend on Thin Film Filter (TFF) technology. The FWDM is extensively used in EDFA, Raman amplifiers, WDM networks and fiber optics instrumentation. These devices combines or separates light at different wavelengths within a wide wavelength range. Since FWDM series offer suprisingly low insertion loss, low polarization dependence, high isolation and ideal environmental stability, great for very fast WDM network systems. It's popular in optical fiber systems:1310/1550nm, 1480/1550nm, 510/1550nm, 980/1550nm and 1310/1490/1550nm.

 

FWDM Main Features:

 

Wide Operating Wavelength Range;

 

Low Insertion Loss;

 

Ultra Flat Wide Passband;

 

High Channel Isolation;

 

High Stability and reliability;

 

Epoxy-free on Optical Path.

 

FWDM Applications:

 

Testing Instruments;

 

FTTH Tri-Play System.

 

WDM is a method of combining multiple signals on lasers at various infared (IR) wavelengths for transmission along fiber optic media. Each laser is modulated by an unbiased group of signals. Wavelength-sensitive filters, the IR analog of visible-light color filters, are utilized in the receiving end.

 

WDM is similar to frequency-division multiplexing (FDM). But rather than occurring at radio frequencies (RF), WDM is performed in the IR portion of the electromagnetic (EM) spectrum. Each IR channel carries several RF signals combined by means of FDM or time-division multiplexing (TDM). Each multiplexed IR channel is separated, or demultiplexed, in the original signals on the destination.

 

Using WDM can multiply the effective bandwidth of your fiber optic communications system by the large factor. However its cost has to be weighed against the contrary of using multiple fibers bundled in to a cable. A fiber optic repeater device known as the erbium amplifier intentions to make WDM a cost-effective long-term strategy to the bandwidth exhaustion problem.

 

Ingellen gives a wide range of WDM/CWDM/DWDM devices, such as CWDM Mux/Demux, CWDM OADM, DWDM Mux/Demux, DWDM OADM, Filter WDM and so on. Ingellen 1310/1490/1550 WDM devices depending on thin-film filter technology are design to address the actual requirements from the FTTP market. Strong coating and passive device packaging capabilities feature these WDMs with excellent optical performance, good reliability and ultra-compact size. Ingellen'Fliter WDM utilizes thin film coating technology and proprietary kind of non-flux metal bonding micro optics packaging.