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What Ports Are Available with CWDM Mux/Demux? What Use Do They Have?

CWDM Mux/Demux is a high-end device that enhances the capacity of the CWDM network. Here, CWDM is an acronym for Coarse Wave Division Multiplexing. One simple example of such a device is 4 CH CWDM Mux/Demux. It means 4-channel mux and 4-channel demux integrated into a single housing (which is usually ABS box), and it can combine or separate up to 4 channels with a 20nm spacing.

You can implement CWDM Mux/Demux devices in various analog and digital transmission systems, metro enterprise, cable TV, 3G Telephony, Datacomm WAN, Metro Core, Metro Access, and sensor applications.

When implementing CWDM Mux/Demux, you will find various types of ports. In this blog, we will define these ports and their use in brief so that you have an idea what these ports do when installing CWDM Mux/Demux devices.

Basic Ports That You Will Find on Any CWDM Mux/Demux

Line Port

Also known as the common port, a line port is a must for any CWDM Mux/Demux device. In some devices, there are single fiber line ports, while others have double fiber line ports. The selection of line ports depends on which WDM wavelengths are being used.

A dual-fiber line Mux/Demux employs the same wavelength for two-way transmission. Meaning, each transmitting and receiving port of every duplex channel port uses the same wavelength.

On the other hand, in a single-fiber Mux/Demux, the transmitting and receiving port of every duplex uses two different wavelengths and all wavelengths flow in only one direction.

Channel Port

Another must-have port in a CWDM Mux/Demux is a channel port that sends and receives signals of selected WDM wavelengths. For instance, CWDM technology supports 18 wavelengths that range from 1270nm to 1610nm with the channel spacing of 20nm. Hence, the channel port count in a CWDM device always varies from 2 to 18 channels.

However, in DWDM technology, wavelengths ranging from 1470nm to 1625nm have a channel space of 0.8nm or 0.4nm. As a result, a DWDM Mux/Demux can support more wavelengths and have channel ports from 4 to 96.

Function Ports on a CWDM Mux/Demux That Can Be Added for Enhanced Functionality

Expansion Port

This port is added so that one can add more wavelengths or channels into the existing network. In other words, if you’ve installed a 4CH CWDM Mux/Demux, you can use an expansion port to extend the network capacity. All you need is to connect this port to the line port of another CWDM Mux/Demux to support different wavelengths.

Monitor Port

Today’s CWDM Mux/Demux devices also come with monitor ports to help ensure better network monitoring and management. It allows you to easily test the dB level of a signal without interrupting the service.

1310nm Port and 1550nm Port

In general, in WDM Mux/Demux, channel ports can be connected to color-coded transceivers only. However, with these special ports, the signal that runs through fiber optic transceivers and transmits over 1310/1550nm ports can also be combined with other CWDM devices.

Each port available on CWDM Mux/Demux has a special usage, and therefore, knowing about their functioning and usage can be very helpful in creating a powerful CWDM network.

It is important to note that the same types of ports with the same purposes are also available on DWDM Mux/Demux.

What’s the Need for Installing CWDM Mux/Demux

An abbreviated form of Coarse Wavelength Division Multiplexing, CWDM technology is a great way of creating a flexible “pay-as-you-grow” type of high capacity optical network. This technology is widely used in dual fiber applications. Once you get CWDM Mux/Demux module installed in your network, you can benefit from the added capacity without ever having to interrupt or break the existing traffic.

The Mux/Demux Module

A Mux/Demux module is made of a multiplexing unit that has the capacity of combining all eight wavelengths into a single mode fiber strand and a demultiplexing unit that has the capacity of splitting the incoming light into eight different data channels. This device gives up to 16-channel and even 18-channel multiplexing on a single fiber. A standard CWDM Mux/Demux bundle sort consists of ABS box bundle, LGX package, and 19” 1U rackmount.

Counted under the category of WDM, the main goal of using such a device is to add the extra capacity to network and to meet a wide range of necessities and system arrangements. There are various board applications that require channel CWDM including Gigabit and 10G Ethernet, Fiber Channel, ATM, ESCON, SDH/SONET and CATV.

Since CWDM items are usually epoxy-free on the optical side, this provides better working conditions. Besides, in CWDM Mux/Demux, there is a high level of channel segregation which prompts better outcomes.

CWDM Mux/Demux Uses

WDM and Access Systems: Since these channel sorts are a part of WDM class, their best application is in the WDM and access systems.

Line Checking: Such devices also find their application as a line observer/checker. Line checking helps in ensuring that there is no crash in the similar line of another range or frequency.

Cellular Applications: The arrangements of CWDM channels have their use and application in the Cellular area as an unparalleled panacea for various problems.

Telecommunications: The broadcast communication area has a wide usage of CWDM arrangements at an incredible rate. CWDM technology is a perfect solution for straightforward transmission of signals.

Apart from these applications and elements, the CWDM technology is also used to uncover the deficiency of fiber and straightforward transmission of exchange while reducing the charges of system building. This is the reason why Channel CWDM Mux/Demux modules have a significant place in the realm of fiber optics, flag transmission, multiplexing and so on.

Do you also needaCWDM Mux/Demux module for your application? Contact the leading manufacturer in the market known for designing high quality optical passive components and devices.

Single Fiber CWDM Mux/Demux and Selection of a Transceiver for This Device

When it comes to transmission and reception of the same wavelength in CWDM network, the one thing that is widely used in this industry is – bidirectional CWDM Mux/Demux. This compact device finds its extensive usage in various applications, especially in telecommunications. Often used in dual way transmission applications, its working is based on a simple principle. When there is a need to connect two dual fiber CWDM Mux/Demux, a dual fiber cable supporting the same wavelength is installed on each end of the fiber network. Even though the wavelengths of the two fibers are the same, they run in different directions of the duplex transmission.

CWDM MuxDemux

However, there is only one fiber for expanding network capacity in some cases. In such cases, we use single fiber CWDM Mux/Demux which is quite different from the dual fiber type. Here, we will discuss what this single fiber CWDM Mux/Demux is all about.

Single Fiber CWDM Mux/Demux

The biggest difference between the appearance of dual fiber and single fiber CWDM Mux/Demux device is that the single fiber type has a simplex line port. However, some of them are also made with a duplex port in which only one port of the duplex is available for use and the other one is marked with N/A.

The main reason behind why this Mux/Demux is capable of achieving dual way transmission is that it utilizes CWDM wavelengths in a different manner as compared with the dual fiber type. While in bidirectional CWDM network each of the wavelengths runs in two opposite directions, in unidirectional CWDM network, they run in just one direction.

So, if you want to create a dual way transmission link between two different sites, you can use either one wavelength over duplex fiber with dual fiber CWDM Mux/Demux or two wavelengths over simplex fiber with single fiber CWDM Mux/Demux.

But, how do you choose a fiber optic transceiver for the single fiber type Mux/Demux? Let’s check out.

How to choose a Transceiver for Single Fiber CWDM Mux/Demux?

While selecting a fiber optic transceiver for the single fiber type, many people get confused because there are two different wavelengths on a duplex channel port. You need to make the selection based on only one thing and that is the wavelength value for Tx.

For example: If Tx value is 1290nm, you should buy a 1290nm CWDM transceiver, if Tx value is 1270nm, you should buy a 1270nm CWDM transceiver and so on. So, you can easily select a transceiver for single fiber type device without any confusion.

If you are also looking for CWDM Mux/Demux for your application, just contact a reputed manufacturer online and get the quotation today.

What is CWDM Mux/Demux and what it is used for?

Wavelength Division Multiplexing (WDM) is a technology which allows you to expand the capabilities of your existing fiber optic network without the addition of extra optical fiber. Through this technology, a Mux can multiplex various optical signals of different wavelengths on a single optical fiber without the need for additional optical fiber. This helps a lot in relieving the fiber exhaustion and extending the link capacity.

In general, there are two types of Mux/Demux – CWDM and DWDM. In this blog, we will discuss the CWDM type in detail.

CWDM

CWDM stands for Coarse Wavelength Division Multiplexing. A CWDM Mux/Demux is used to increase the capacity of the fiber in 4, 8, 16, or 18 channels. By incrementing the channel spacing between different wavelengths, this device allows an easier, simple and affordable method to carry up to 18 channels on a single fiber. It is mainly used for providing the flexibility to increase the capacity of existing fiber infrastructure.

Application of CWDM Mux/Demux

This device is widely used in a number of applications such as:

WDM network
Line monitoring
Cellular application
Access network
Fiber amplifier

Each of the CWDM channels uses 20nm of space and all of them consume most of the operating range of single mode. Every channel carries data independently and there is no effect of one channel on the other channel. This allows network designers to transfer different data rates and protocols to meet the different requirements of different customers without any interference. The usual operating wavelength range for 16 channels varies from 1270 to 1610 nm and the most commonly used CWDM Mux/Demux are the ones which come with 16 or 18 channels.

So, which one you should choose for your application? Let’s find out.

16 Channel vs. 18 Channel CWDM Mux/Demux

The capacity of a CWDM network largely depends on Mux/Demux. If there are more channels of Mux/Demux, the capacity of CWDM network will also be higher. The channel number of most of the Mux/Demux ranges from 2 to 18. Among these, 16 and 18 channel CWDM Mux/Demux devices are more commonly used in the telecommunication industry. Except for the fact that the latter one provides two more channels than the former, there is no difference between them. Since in CWDM Mux/Demux with 18 channels, the capacity is increased, there will be more insertion loss.

So, there is no such thing about superiority between these two. Which one you should choose depends on your specific requirement and application scenario. If your application involves broader network capacity and scalability, an 18 channel CWDM Mux/Demux is recommended to use, otherwise you can go for 16 channel CWDM Mux/Demux.

All Information You Must Keep in Mind Related to the CWDM Mux/Demux

The CWDM strategy multiplexes optical flags together on one single fiber. To accomplish this it utilizes distinctive hues (wavelengths) which are joined in a MUX. The gadget where the optical signs are multiplexed and de-multiplexed is known as a MUX or a fiber optical multiplexer or a CWDM multiplexer. Much of the time these MUXES are aloof so no power is required; henceforth the interim between disappointments is around 500 years.

All optical transmission is finished by double filaments where one fiber is transporting information from east to west and the other west to east. This double capacity is conceivable in light of the fact that one MUX has both a multiplexer and a de-multiplexer. There are two gauges for multiplexing: CWDM and DWDM. The principal distinction is the wavelength ventures between the channels: for CWDM this is 20nm (course) and for DWDM this is regularly 0.8nm (thick). CWDM has 18 wavelengths from 1610 to 1270 with ventures of 20nm.

The main eight wavelengths (1610-1470) are the most utilized and furthermore, are not influenced by what is alluded to as “the waterpark”. This waterpark causes high constriction from wavelengths 1370-1410nm on old kinds of filaments. Strong Optics offers the Passive CWDM MUX in 8 port and 18 ports and we additionally have the full scope of CWDM 1G (24dB/32dB/37dB) and SFP+/XFP 10G ER/ZR optics in stock. The greater part of our CWDM MUXES has the MUX and DEMUX inside and arrives in a 19-inch suspension with rack mounts.

By utilizing inactive multiplexers, a few optical channels of various wavelengths can be joined, which will enable different services to the transmitted together by means of fiber without obstruction. What makes this concept is the way that diverse light hues (wavelengths) don’t influence each other. For transmission, light hues are multiplexed onto a fiber utilizing a wavelength-particular channel (multiplexing). At the other (getting) end of the line, the wavelengths are separated once more, or rather, demultiplexed. Henceforth, any transmission line comprises of a multiplexer and a demultiplexer.

The inactive multiplexer and demultiplexer modules are working with the CWDM matrix concurring ITU G.694.2 standard. The multiplexer/demultiplexer rack modules are a piece of a wide item scope of utilitarian modules for the establishment in particular rack frameworks from MICROSENS. Notwithstanding work area lodgings, clients can choose a 19″ undercarriage with up to 12 openings. When utilizing multi-opening body, the converter might be joined with some other modules from the Enterprise Access family. What’s more, the MICROSENS item portfolio offers dynamic converters for optical or electrical/optical adjustment of information channels to the suitable wavelengths and required reaches.

Utilizing WDM as transmission innovation, organize administrators can fabricate a framework that might be extended relying upon require. What’s more, the limits in all sub-territories of the system are expandable. This speaks to leeway no other innovation can give. Utilizing latent multiplexers is of enthusiasm for link organizes administrators, as well. This innovation will permit giving extra services, for example, joining bi-directional information services with uni-directional TV transmission with no issue, while utilizing the current foundation.

CWDM Mux/Demux – Easy flow of signals across the optical fiber

The Coarse Wavelength Division Multiplexing (CWDM) is the method of combining the multiple signals on laser beams for transmission along fiber optic cables. The number of channels is less in CWDM rather than in standard Wavelength Division Multiplexing (WDM). A CWDM MX DEMUX is used for increasing the current fiber cable capacity by transmitting multiple wavelengths, typically up to 18 separate signals over one fiber. It is a passive device, very reliable and simple to use.

What is the basic difference between a MUX and DEMUX?

A Multiplexer (or MUX) is a device that is selecting one of several analog or digital input signals into a single line. The data distributor is known as Demux for short and it is the exact opposite of the multiplexer. The multiplexer is a device that is taking a single input signal and selecting one of the data-output-lines to the single input.

CWDM is supporting up to 18 wavelength channels transmitted through a fiber at the same time. The different wavelengths of channels are 20nm apart in CWDM and DWDM support 80 simultaneous channels with each channel only 0.8nm apart. CWDM is the most efficient solution for shorter distances of up to 70 kilometers. CWDM also tends to be limited to supporting 8 channels for the distance between 40 and 70 kilometers. But, unlike CWDM, DWDM can be amplified and used for transmitting data along long distances.

CWDM components are cheaper and popular than DWDM. Both the solutions are available as an active or passive system and DWDM is the technology for greenfield installations. In CWDM, the energy from the laser is spread over a larger range of wavelengths as compared to the DWDM system. The tolerance in a CWDM laser is up to more or less 3nm. But the tolerance is tighter in a DWDM system. The maximum realizable distance between the nodes is smaller with CWDM.

Details about CWDM Mux/Demux System Installation Components

The basic ingredients of a CWDM MUX-DEMUX system comprise a Local unit, a Remote unit, and the CWDM MUX DEMUX module. A chassis should be installed first to hold the module and install CWDM SFP transceivers in the switch to connect a CWDM MUX DEMUX module to a switch. Also, the energy from the lasers in a CWDM system is spread out over a larger range of wavelengths.

Transmission is the vital factor in transferring signals along the optical fiber. Get the best CWDM Mux/Demux price in China as the production cost is less in the place. The orders can be made online easily and get the transmission object now at the most effective pricing.

What is CWDM and its features?

Multiplexing is the method of maximizing the communication capabilities with the use of fiber optic cables. This methodology maximizes the communication capabilities and CWDM (Coarse Wavelength Division Multiplexing) combines multiple signals along the fiber optic cable on laser beams. Various wavelengths and channels are used for transmission and the functionalities are much higher than conventional standard Wavelength Division Multiplexing (WDM).

What are the specifications of a compact CWDM Mux and Demux?

Low-cost, un-cooled lasers are used for CWDM and the system has channels at wavelength spaced 20 nanometers (nm) apart. The emission is occurring at 8 different channels namely – 1610 nm, 1590 nm, 1570 nm, 1550 nm, 1530 nm, 1490 nm, and 1470 nm. Also, up to 18 different channels are allowed with the wavelength ranging down to 1270 nm.

The energy emitted out of the lasers in a CWDM is spread out over a larger range of wave=lengths which is the energy from the lasers in a DWDM system. The tolerance is much higher up to ± 3 nm. A CWDM system is less expensive and consumes less power than a DWDM system.

Features of CWDM MUX or DEMUX

It is compact and mini in size
The device has low insertion loss
It has wide pass band
High channel isolation is possible with CWDM
The state of CWDM MUX or DEMUX is highly stable and reliable
It ensures Epoxy Free on optical path

Application that uses compact CWDM MUX or DEMUX

Line Monitoring
WDM Network
Telecommunication
Cellular Application
Fiber Optical Amplifier
Access Network

The optical signal is multiplexed from 4 or more devices into a single optical fiber. De-multiplexing is splitting a signal into separate signals for input into the electronic devices. It provides the ability to add or drop a single wavelength from a multiplexed signal which is providing access to common fiber segment between remote sites. The channel segmentation is very high in CWDM and the expanded seclusion prompts better outcomes. The CWDM channel arrangements have their utilization and applications additionally in the Cellular area. It devours Channel-8 CWDM at an incredible rate. The items should be utilized for straightforward transmission of signs and also use of filaments.

How to Add CWDM MUX/DEMUX System to Your Network?

CWDM stands for coarse wavelength division multiplexing, and it was made for fiber optic network to increase the capacity of it without having to add extra fiber. The most important component in the CWDM system is the CWDM Mux/Demux (multiplexer/demultiplexer).

Normally, it helps in transmitting multiple wavelengths and increases the fiber capacity if the cable to an extent of 18 different signals over one fiber. The following information is going to help you in installing your CWDM Mux/Demux system. Until and unless you are someone who has an experience in doing this, it’ll be of a great help if you choose to follow the given below information.

Introduction to CWDM MUX/DEMUX Module

This device is extremely reliable and simple to use. It comes in a variety of combinations and wavelengths that mostly ranges from 1270nm to 1610nm (20nm spacing). This module can fit into different modules depending upon the design we pick for the channels, after comprehending its application. One fiber can withstand four different wavelengths normally with a 4 channel Mux/Demux module. This gives the fiber the liberty to release four different kinds of data simultaneously.

CWDM Mux/Demux can be used on a normal day as a multiplexer or demultiplexer at each end of the fiber cable span. Although, it still has to be installed in pairs.

How to Add CWDM MUX/DEMUX System to Your Network?

Install the Rack-Mount Chassis: take a standard 19-inch cabinet or a rack and install the CWDM rack-mount chassis over it. Next, whenever you choose to glue the chassis to the rack, make sure that you are installing the rack-mount chassis on the similar rack or maybe next to it. Hence further, it is easier for you to connect the cables between the CWDM Mux/Demux modules and the CWDM SFP transceivers in your system.

Install the CWDM Mux/Demux Modules: first thing that you should do is to manage the alignment of the chassis shelf to insert the module and then next very slowly push the module into the cavity of the shelf. Also, don’t forget to screw the nails harder.

Connect the CWDM Mux/Demux to Switch: once we have inserted the CWDM SFP transceiver in the switch, the next step is to pick the single mode patch cable and connect the transceiver immediately. Also, make sure that the CWDM Mux/Demux pairs are carrying the transceivers at the same wavelength. If the wavelength is different it is going to automatically show a different color.

Connect the CWDM MUX/DEMUX Pairs: finally, when you have seen the CWDM multiplexer at one end of the network, make sure to use the demultiplexer at the other end of the network. And finally, last but not the least, complete CWDM Mux/Demux system by connecting it to the Mux/Demux pairs and install them successfully.

Combining the Multiplexer and Demultiplexer into One!

As advancements in technology take place, the need for faster data transmission emerges. Often, continuing with the old equipment results in major losses. If you have been fed up of the existing data transfer speeds at your place, it is certainly the time when you should look out for change. And not just change, a solution which is cost effective, of the best quality and the best service should always be your goal.

DK Photonics Technology Limited is one of the leading companies in designing and manufacturing of high quality optical passive components, which includes a large array of fiber-optic components. You can count on them to get the best solution for your everyday problems. They have brought the advantages of both the multiplexer, which is multi input and single output device and the demultiplexer, which is a single input and multiple output device, into one product. It has eradicated the need for having both the products separately.

About our CWDM Mux and DeMux Module:

For industries employing multiplexer and demultiplexer for telecommunication, fiber sensor and fiber laser applications such as line monitoring, networking, cellular communications, optical amplifiers etc. DK Photonics CWDM MUX+DEMUX Module is an ideal choice. It supports wavelengths between 1270nm to 1610nm in 20nm increments, allowing different services up to 10Gbps to be transported across the same fiber link. It is the latest product that offers a competitive advantage to the industry using it.

The features of CWDM Mux+DeMux Module are:

Low insertion loss
Wide pass band
High channel isolation
High stability and reliability
Epoxy free on optical path

With so many advanced features, it surely is going to beat the obsolete products. The module combines the need for a multiplexer and demultiplexer into one product. Besides, minimizing the number of wires that are required for the multiple transmissions, the information is multiplexed over a single high data rate link, and then demultiplexed at the other end, along a single communication channel. That is what makes it a more sought after choice.

If you intend to increase your data transfer needs with the optical Mux+DeMux module, you are just a few a steps away. Get a Mux+DeMux module for your industry and connect the data line is to the output line. Enjoy the difference!

Our contact and support:

We are always reachable at the following destinations:

Website: http://www.dkphotonics.com
E-mail: info@dkphotonics.com
Tel:+86-755-36820366
Fax:+86-755-26746512
Add: DK Photonics Technology Limited
7/F, Bldg. C, Qinghu Technology Park
Qingxiang Rd., Longhua New Dis.
Shenzhen, Guangdong, China 518109

Combining the Multiplexer and Demultiplexer into One

D K Photonics Technology Limited is one of the leading companies in designing and manufacturing of high quality optical passive components, which includes a large array of fiber-optic components. You can count on them to get the best solution for your everyday problems. They have brought the advantages of both the multiplexer, which is multi input and single output device and the demultiplexer, which is a single input and multiple output device, into one product. It has eradicated the need for having both the products separately.

About our CWDM Mux and DeMux Module:

The features of CWDM Mux+DeMux Module are:

Low insertion loss
Wide pass band
High channel isolation
High stability and reliability
Epoxy free on optical path

If you intend to increase your data transfer needs with the optical Mux+DeMux module, you are just a few a steps away. Get a Mux+DeMux module for your industry and connect the data line is to the output line. Enjoy the difference!

Our contact and support:

We are always reachable at the following destinations:

Website: http://www.dkphotonics.com
E-mail: info@dkphotonics.com
Tel:+86-755-36820366
Fax:+86-755-26746512
Add: DK Photonics Technology Limited

7/F, Bldg. C, Qinghu Technology Park

Qingxiang Rd., Longhua New Dis.

Shenzhen, Guangdong, China 518109