Talk About QSFP 40G SR4 to 4 SFP 10G SR Transceiver Module

As we know, SFP+ and QSFP+ transceiver module and fiber optic cables bring to people a wide variety of high density and low power 40 Gigabit, 10Gigabit, 1 Gigabit, and 100 Megabit Ethernet connectivity options over fiber or copper media.


The example of 40G QSFP module will bring us to have knowledge of it. In 40G QSFP module data sheet, we can see that QSFP 40G SR4 break out in a 4 x 10 G mode for interoperability with 10Gbase sr interfaces up to 100m and 150m on OM4 and OM3 cables respectively, in another word, if i connect Nexus 55772UP equipped with “six true QSFP ports” to Nexus 7706 using QSFP 40G SR4 on the side of 5572UP, and 4 x cisco SFP 10G SR on the side of 7706 Somehow, i think that this is not impossible, but someone thinks that there are fiber optic cables with 40G interface on one side and 4 x 10G SFP (LC connector) on the other side. We can breakout the single 40G port into 4 separate 10 G ports and use a QSFP to 4 LC breakout cable to link one or more of 10G ports to the 7706.

In fact, Cisco QSFP 40G SR4 module supports link lengths of 100m and 150m, respectively, on laser optimized OM3 and OM4 multimode fibers. It primarily enables high bandwidth 40G optical links over 12 fiber parallel fiber terminated with MPO/MTP multifiber connectors. It can be used in a 4 x 10G mode for interoperability with 10Gbase sr interfaces up yo 100m and 150m for OM4 and OM3 cables, respectively. The worry free 4 x 10G mode operation is enabled by the optimization of the transmit and receive optical characteristic of the Cisco QSFP 40G SR4 to prevent receiver overload or unnecessary triggering of alarm thresholds on the 10Gbase SR receiver, at the same time being fully interoperable with all standard 40Gbase sr4 interfaces. 4 x 10G connectivity is achieved using an external 12 fiber parallel to 2 fiber duplex breakout cable, which connects the 40GBASE SR4 module to four 10GBASE SR optical interfaces. Cisco QSFP 40G SR4 is optimized to guarantee interoperability with any IEEE 40GBASE SR4 and 10GBASE SR (in 4 X10G modes).

The transceiver consists of parallel electric and optical products along with both transmitter and receiver functions as a single module. It is designed to be compliant to IEEE 802.3-2012 for 40G SR4 over 100 m of OM3 multimode fiber at a rate of 41.25 Gbps. This transceiver module has an option to work with four independent SFP 10G SR, IEEE 802.3 Clause 52 Compatible 10 G transceivers through an MPO-to-LC breakout cable (compliant at 100 m over 50 μm OM3 fiber). The transceiver is also fully compliant with the QSFP+ MSA specification SFF-8436 Shown at the Figure.

10gbase sr

To support a good increasing range of 10 and 40 Gigabit Ethernet applications, Fiberstore offers many qsfp transceiver types, each optimized for a different media and distance reach (LR4, PLRL4, 40G SR4, XSR4, CR4, CR, SRL, SR, LRL, LR, ER, ZR, and DWDM). Additionally, fiber SFP+ ports also support 3 Gigabit Ethernet SFP transceiver types for single mode fiber, multimode fiber, as well as Cat 5 copper cable.

Address Common Questions When Using the Compatible Devices

When we begin to come into compatible products industry, there is always a problem that confused us, we are not sure if a device can be compatible with another device in different brands, even after they connected, did not know what would happen, well, this page I will explain the problem with the actual example.

For example, we need to connect Dell M6330 blades switches to a HP 2910al by fiber sfp+ over sr (50/125 um OM3 fiber from tyco). Then i ordered the SFP+ module for the 2910al (J9008A), two transceiver modules for the DEll switches (one each) and 4 x Dell 10gbase-sr sfp LC LC transceiver. And if all the connection between the M6220 done well, but when i plug the Dell transceiver into the switch there is no link up, what it means that if the HP switch refused to work with the Dell transceivers, but there is no event log notice of incompatibility, Then the questions is, if i can connect the HP switches to Dell by SFP+, or do you know if using non-HP brand SFP+ transceivers will work with the HP transceiver?


Well, in this issue, If you are indeed using optical transceivers in the switches, then no switch has any idea about what transceivers are in any other switch. Switches only know about the directly connected (plugged-in) transceivers. Now, as for the transceivers themselves. The J9008A is simply an expansion module. HP ProCurve switches will not accept non-HP ProCurve transceivers. So, if you have been trying to use the Dell SFP/SFP+ transceivers with the HP 2910al, that would be your problem. You are required to obtain HP ProCurve transceivers and use those.

sfp module

In general, we have to say that HP switches do not accept non-hp transceivers, such as Cisco, Dell, Juniper, Netgear and so on…You can’t plug a Dell transceiver in a ProCurve switch and expect it to work. Although there is a MSA (Multi Source Agreement) for SFP transceiver, in practice HP switches do not accept non-HP transceivers. Cisco equipment also can only utilize the Cisco SFP module and other brand module or equipment is not supported. If you just plug in the other module, Cisco port information will be displayed on the Unsupport or unknown. In simple terms, as for the unknown GBIC, Cisco device does not provide any warranty. In a word, when we choose the device, we just have to choose the same brands products, compatible products also can be used. Above the Figure shows that the popular compatible module in our Fiberstore.

Juniper Networks SFP Module EX-SFP-10GE-SR

SFP is with higher data rate and new industrial standards and it is with more compact size compared with the former 10G transceivers X2 and Xenpak, it has greater ability for density installations. With the rapid development of fiber optic technologies, 10G Ethernet products are coming to fit the increasing demand for bandwidth. SFP plus is the 10G fiber optic transceiver used for 10G Ethernet and other high speed transmissions. It is the upgraded version of the former SFP transceivers (MINI GBIC), This post will focus on Juniper Networks SFP module EX-SFP-10GE-SR.

Overview of Juniper SFP Modules

Juniper SFP transceivers are the most cost-effective standards-based optical modules fully compatible with Juniper Switches & Routers. The Juniper SFP modules are tested in-house prior to shipment to guarantee that they will arrive in perfect physical and working condition before delivered worldwide. Fiberstore provides Juniper compatible SFP transceivers which can be equivalent to EX-SFP-10GE-SR, EX-SFP-10GE-LR, SFPP-10GE-SR, EX-SFP-10GE-ER, etc. The following part will introduce Juniper EX-SFP-10GE-SR.

Juniper EX-SFP-10GE-SR Brief Information

This Juniper compliant EX-SFP-10GE-SR is a 10GBASE SR SFP module. The EX SFP 10GE SR transceiver module combines quality with low cost and gives you an ideal alternative except for the high price transceivers. The EX SFP 10GE SR is 100% compatible with all Juniper series switches and modules which support SFP transceivers. Here is a figure for you.

Juniper EX-SFP-10GE-SR

This SFP (mini-GBIC) transceiver module is designed for use with Juniper Networks network equipment and is equivalent to Juniper Networks part number EX-SFP-10GE-SR. This transceiver is built to meet or exceed the specifications of the OEM and to comply with Multi-Source Agreement (MSA) standards. This product is 100% functionally tested, and compatibility is guaranteed. The transceiver is hot-swappable input/output device which allows a 10 Gigabit Ethernet port to link with a fiber optic network. OEM specific configuration data is loaded on to the EEPROM of the transceiver at the factory, allowing this transceiver to initialize and perform identically to an OEM transceiver. This transceiver may be mixed and deployed with other OEM or third party transceivers and will deliver seamless network performance. A list of compatible network equipment is available on the Specs tab of this page.

EX-SFP-10GE-SR Key Features
  • Operating data rate up to 10.3Gbps
  • 850nm VCSEL Transmitter
  • TX Power :-6~-1dBm
  • Receiver Sensitivity:-11.1dBm
  • Distance up to 300m @50 / 125 um MMF
  • Single 3.3V Power supply and TTL Logic Interface
  • Duplex LC Connector Interface, Hot Pluggable
  • Compliant with MSA SFP+ Specification SFF-8431
  • Compliant with IEEE 802.3ae 10GBASE-SR/SW
  • Power Dissipation < 1.0W
  • Built-in Digital Diagnostic Function
EX-SFP-10GE-SR Applications
  • 10GBASE-SW at 9.953Gbps
  • 10GBASE-SR at 10.3125Gbps
  • Other Optical Link


FS.COM have a large quantity in stock transceivers and can ship in the Juniper EX SFP 10GE SR transceivers, you will find the cost effective modules here and you will find our Juniper EX-SFP-10GE-SR beyond your expectation, All of our module transceivers are tested in house prior to shipping to insure that they will arrive in perfect physical and working condition. Contact us today to save the time and cost by buying from original manufacturer directly. And now fiberstore is making a discount of 30% of the price about Juniper SFP.

Cisco Compatible DAC Cable For 10Gigabit Ethernet

FS.COM, the professional interconnect manufacturer formally announced the expansion of its high-speed 10-Gigabit products which have established a reputation for premium quality, proven performance and competitive prices. Cisco compatible DAC cables for 10-Gigabit Ethernet provided by Fiberstore can save your money. This article is going to introduction Fiberstore DAC cable to you.

Overview of DAC Cable

10G SFP+ Direct Attach Cable (DAC), twinax cable with SFP+ connector, is designed to work with equipment with 10G SFP+ interface, and the pirce is low. For example: Cisco SFP-H10GB-CU1M compatible SFP to SFP copper direct attach cable only needs US$ 18.00, which is introduced in FS.COM Interconnect Compatible Solutions. This cable offers the same function with Cisco SFP-H10GB-CU1M and it is fully compatible with Cisco devices. It provides a low cost, low power and low latency interconnect solution for 10-Gigabit Ethernet. In addition, it is direct attached compliant and fully compatible with the SFP+ MSA specifications. For more information about compatibility, please refer to All About Compatibility: Third-Party vs. Brand Optics.

Different Types of DAC Cable

FS.COM offers Cisco compatible DAC cables for 10-Gigabit Ethernet:

SFP+ Twinax Copper Cables

SFP+ DAC Cable

Figure 1. 10G SFP+ Twinax Copper Cable.

SFP+ copper twinax direct attach cables are suitable for very short distances data transmission applications, and they offer a cost-effective way to connect within racks and across adjacent racks. The passive twinax cables are available in lengths of 1, 1.5, 2, 2.5, 3 and 5 meters, and active twinax cables are available in lengths of 7 and 10 meters. The following table shows the detailed information about Cisco sfp+ twinax copper cables.

10g sfp to sfp DAC cable

SFP+ Active Optical Cables

10G SFP+ Active Optical Cable

Figure 2. 10G SFP+ Active Optical Cable.

SFP+ active optical cables (AOC) are direct attach fiber assemblies with SFP+ connectors. They are commonly used for short distances data transmission applications, and they provide a cost-effective solution for connections within racks and across adjacent racks. You can get detailed information about SFP+ active optical cables offered by FS.COM in the table below.

10g sfp to sfp aoc cable


If you are in the market for high speed copper cables, such as CX4 cables, HD Mini-SAS cables, SFP+ cables, QSFP cables, today is the perfect time to buy with the 30% saving. These cables are 100% compatible with major brands like Cisco, HP, Juniper, Enterasys, Extreme, H3C and so on. And FS.COM offers customized service for cable length. They provides 10G SFP+ cables, including 10G SFP+ copper passive / active cable and 10G SFP+ AOC cable, in various lengths according to requirement of customers.

12 Fibers MPO/MTP Fiber Optic Cable

To satisfied high-density cabling requirement in data center, data center managers are more likely to choose network components characterized by saving space. MPO/MTP components are now widely used around the world. They not only allow for more fiber ports per unit of rack space, but also satisfies the need of parallel optical interconnections for multi-fiber connection. This article is going to introduce 12 fibers MPO/MTP fiber optic cable, which is popular in high-density cabling.

Overview of 12 Fibers MPO/MTP Connector

Before we come to 12 fibers MPO/MTP fiber optic cable, let’s have a brief overview of 12 fibers MPO/MTP connector. In theory, the 12 fibers MPO/MTP connector can deliver 6x10G transmit fibers and 6x10G receive fibers. However, it actually only delivers 40G since the transceivers and the equipment are only capable of supporting 40G data rates. That means 33% fibers of the connector are not being used, only 8 fibers are being used at the transceiver while the other 4 fibers are just spares. From the figure below, you can have a better understanding of this. Accommodating 12 fibers, the 12 fiber MPO/MTP connector provides up to 12 times the density, thereby it can save space in the rack. It is the first connector which has enough repeatable performance to be accepted in data centers.

12 Fibers MPO/MTP Connector

Overview of 12 Fibers MPO/MTP Fiber Optic Cable

MTP is the high dense degree of optical fiber pre-connect system,which is generally use in three areas: the data center application with high dense degree environment; the optical fiber to the building and the internal connector application in fiber equipment. Terminated with MPO connectors, Fiberstore’s MPO/MTP fiber optic cable is compliant to IEC-61754-7 and TIA-604-5(FOCIS-5) standard. It utilizes factory finished MPO plugs, low smoke zero halogen (LSHZ) jacket and push-on/pull-off latching connector. In addition, each MPO connector is polished according the polished end-face quality specification standard. It can provide easy connection and disconnection. MPO/MTP fiber optic cable is commonly applied in local area networks, data centers, campus networks and storage area networks.

Different Types of 12 Fibers MPO/MTP Fiber Optic Cables

After knowing about MPO/MTP fiber optic cable in general, the following part will introduce three types of 12 fibers MPO/MTP fiber optic cables to you.

12 Fibers MPO/MTP Fiber Optic Cable Single-mode 9/125μm

The two connectors on each end of the cable is Female MPO connector which has no pins and Male MPO connector which has pins. You can have a better understand of this structure from the figure below. The MPO connector standard accords to IEC 61754-7 series. The fiber type is OS2 9/125μm and fiber polish is UPC. Fiber rating is LSZH. The color of the cable is yellow.

12 Fibers MPO/MTP fiber optic cable single-mode 9/125μm

12 Fibers MPO/MTP Fiber Optic Cable Multimode OM2 50/125μm

The two connectors on each end of the cable is Female MPO connector which has no pins and Male MPO connector which has pins. You can have a better understand of this structure from the figure below. The MPO connector standard accords to IEC 61754-7 series. The fiber type is Multimode OM2 50/125μm and fiber polish is UPC. Fiber rating is LSZH. The color of the cable is orange.

12 Fibers MPO/MTP Fiber Optic Cable Multimode OM2 50/125μm

12 Fibers MPO/MTP Fiber Optic Cable 10G OM3 50/125μm

The two connectors on each end of the cable is Female MPO connector which has no pins and Male MPO connector which has pins. You can have a better understand of this structure from the figure below. The MPO connector standard accords to IEC 61754-7 series. The fiber type is Multimode 10G OM3 and fiber polish is UPC. Fiber rating is LSZH. The color of the cable is aqua.

12 Fibers MPO/MTP Fiber Optic Cable 10G OM3 50/125μm


MPO/MTP multi-fiber system is designed for the reliable and quick operations in data centers, where the obvious benefits are less space requirements and improved scalability, which providing significant space and cost savings. Fiberstore provides various types of MPO/MTP fiber optic cables and other MTP components. If you want to know more details, you can visit our site.

Next-Generation OM3 Multimode Fiber

We know that conventional datacom links use single-mode fiber (SMF) for long-distance, high-speed links and multimode fiber (MMF) for shorter links. Early datacom applications, including ESCON, Token Ring, FDDI, Ethernet, and ATM, operated at relatively slow data rates (4-155 Mbit/s), using low-cost infrared light-emitting diode transmitters (LEDs). And this article will focus on OM3 multimode fiber.

The Development of MMF

The earliest fibers, called Optical Multimode 1 (OM1), featured a large core than is used today and a bigger numercial aperture. As the technology matured, smaller core MMF was typically rated for a minimum bandwidth-distance product around 160 MHz*km for 62.5/125 micron fiber at 850 nm wavelength; 500 MHz*km for 50/125 micron fiber at this wavelength; and 500 MHz*km for both fiber types at 1300 nm wavelength. This fiber was compatible with various industry standards, including CCTIT recommendation G.652, and was defined by the ISO standards as “optical multimode 2” (OM2) fiber; it is also commonly known as “FDDI grade” fiber, The fiber bandwidth was measured using an overfilled launch (OFL) test procedure, which replicated the large spot size and uniform power profile of a LED. Since a LED consistently fills the entire fiber core, the fiber bandwidth is determined by the aggregate performance of all the excited modes. However, LED sources typically have a maximum modulation rate of a few hundred Mbit/s; with the growing demand for higher data rates, laser sources operating over SMF were required.

Issues Related to VCSELs

Single-mode links using Fabry-Perot or distributed feedback lasers operating at long wavelength (1300nm) tend to be higher cost due to their tighter alignment tolerances and higher performance characteristics. There is lower cost alternative; the recent deployment of short-wave (780-850 nm) vertical cavity surface emitting lasers (VCSELs) has made it possible to use MMF at higher data rates over longer distance. Compared with LEDs, VCSELs offer higher optical power, narrower width, smaller spot size, less uniform power profiles, and higher modulation data rates. This means that a VCSELs will not excite all of the modes in a MMF; the fiber bandwidth is determined by a restricted set of modes, typically concentrated near the center of the core. Older MMFs experienced significant, often unpredictable variations in bandwidth when used with VCSEL sources due to defects or refractive index variations in the fiber core and variations in the number and power of excited modes due to fluctuations in the VCSEL output or between different VCSEL transmitters.

In response to these problem, the datacom industry developed a new type of laser-optimized or laser-enhanced MMF specifically designed to achieve improved, more reliable performance with VCESLs. Precise control of the refractive index profile minimizes modal dispersion and differential mode delay (DMD) with laser sources, while remaining backward compatible with LED sources (the dimensions, attenuation, and termination methods for laser-optimized and conventional fiber are the same). The first laser-optimized fibers, introduced in the mid-1990s, were available in both 50-microns and 62.5-micron varieties and designed for 1-Gbit/s operation up to a few hundred meters. These fibers were not always capable of scaling to higher data rates; with the increased attention on 10-Gbit/s links, never types of reaching about 35 meters at 10-Gbit/s, it became apparent that the smaller core diameter and reduced number of modes in 50 micron fiber made it the preferred choice for these data rates. Today, laser-optimized fiber is commonly available only in 50-micron versions, with an effective bandwidth-distance product around 2000 MHz*km for 850 nm laser sources. The bandwidth must be measured using a restricted mode launch (RML) test, instead of the conventional OFL method. This fiber was defined in the TLA-568 standard as “laser-optimized multimode fiber, ” and in the ISO 11801 (2nd edition) by its more common name, “optical multimode3” (OM3) fiber. Click to buy OM3 fiber patch cables.

Colors of Fiber Cables

An early example of laser-optimized fiber is the Systimax Lazer SPEED fiber introduced by Lucent, which uses a green jacket to distinguish it from existing multimode (orange) , single-mode (yellow) , and dispersion-managed (purple) fiber cables. Attenuation is about 3.5 dB/km at 850 nm and 1.5 dB/km at 1300 nm; bandwidth is 2200 MHz*km at 850 nm (500 MHz*km overfilled) and 500 MHz*km at 1300 nm (no change when overfilled) . Another example is the Corning Infini-Core fiber, which typically uses an aqua-colored cable; the CL 1000 line consists of 62.5-micron fiber made with an outside vapor deposition process that achieves 500-m distances at 850 nm and 1 km at 1300 nm. Similarly, the CL 2000 line of 50-micron fiber supports 600-m distances at 850 nm and 2 km at 1300 nm. Here is a figure of OM3 multimode fiber for you.

OM3 multimode fiber

Applications of OM3

Most recent installations of Ethernet, Fibre Channel, InifiniBand, and other systems use the preferred OM3 multimode fiber (for example, the OM3 SC to LC), and many legacy systems including ESCON are compatible with this fiber. In order to avoid the associated with installing new fiber, most standards attempt to accommodate various types of MMF. While the idea of backward compatibility works reasonably well up to 1 Gbit/s (distances of a few hundred meters can be achieved) , it begins to break down at higher data rates when the achievable distance is reduced even further. Designing a future-proof cable infrastructure under these conditions becomes increasingly difficult; at some point, new fiber needs to replace the legacy MMF. Although SMF should be a good long-term investment, the short-term cost premium for SMF installation and ports on many switches, servers, and storage devices remains a concern. Since the cost of short-wave transceivers is presently lower than long-wave transceivers, there is still some question as to the preferred fiber to install and the best mixture of 62.5-micron and 50-micron MMF. In general, 50-micron fiber has been widely deployed in Europe and Japen, while North America has primarily used 62.5-micron MMF until recently. The IEEE has recommended using 62.5-micron MMF in building backbones for distances up to 100m, and 50-micron fiber for distances between 100 and 300 m.


Mixing OM2 and OM3 fibers in the same link results in an aggregate bandwidth proportional to the weighted average of the two cable types. Care must be taken not to mix 50-and 62.5-micron fibers in the same cable plant, as the resulting mismatch in core size and numerical aperture creates high losses. This can make it difficult to administer a mixed cable plant, as there is no industry standard connector keying to prevent misplugging different types of MMF into the wrong location.

Fiberstore Fiber Patch Cables

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I am working in Fiberstore to share the fiber optic networking knowledge and products’ information with people. Fiberstore is a largest supplier of optical network solutions worldwide. You can get the cheapest fiber optic patch cords here.

Fiberstore Coarse Wavelength Division Multiplexing Devices

CWDM mux/demux is a flexible solution that enables operators make full use of available fiber bandwidth in local loop and enterprise architectures. The wavelengths used with CWDM implementations are defined by the ITU-T G.694.2, listing 18 wavelengths from 1270nm to 1610nm with 20nm increased. CWDM solution takes the most important advantage of low price which is typically 1/3rd lower than the equivalent DWDM optics. FS.COM introduces its new generation of coarse wavelength-division multiplexing (CWDM) devices boasting increased functions and improved performance to extend the reach of CWDM metropolitan networks. The following text will introduce CWDM Mux/Demux, CWDM OADM, and optical port configuration used in CWDM network.


The CWDM Mux/Demux in FS.COM is a universal device capable of combining up to 18 optical signals into a fiber pair or 9 optical signals into a single fiber. It is designed to support a broad range of architectures, ranging from scalable point-to-point links to two fiber-protected rings.

Besides, FS.COM CWDM Mux/Demux is a passive device which allows for any protocol to be transported over the link, as long as it is at a specific wavelength (i.e. T1 over fiber at 1570nm transported alongside 10Gbps Ethernet at 1590nm). This allows for long-term future proofing of the networking infrastructure because the multiplexers simply refract light at any network speed, regardless of the protocol being deployed. The following image shows FS.COM 8 Channels 1470-1610nm Dual Fiber CWDM Mux Demux.

8 Channels 1470-1610nm Dual Fiber CWDM Mux Demux

FS.COM CWDM Mux/Demux With Different Optional Port Configurations

FS.COM also provides CWDM Mux/Demux with different optional port configurations such as, express port, monitor port, 1310nm pass band port and 1550nm port for these multiplexers according to customer choice.

  • Monitor Port: Our CWDM Mux/Demux is optional to equip with monitor port that allows our customer connect optical meter or OSA to monitor and troubleshoot the network. It is simple to operate. Add the monitor port to an existing, multiplexed link. A small sample, of each signal, is “leaked” to the outputs, then connect measurement/monitoring equipment, such as power meters or network analyzers, to the module outputs. When finished monitoring, disconnect the instruments. The network is left undisturbed. (Monitor port tap percentage is 5% as default.)
  • Expansion/Express Port: The Expansion Port (EXP) enables the cascading of two CWDM Mux/Demux modules, doubling the channel capacity on the common fiber link. For example, two 4-Channel MUX/DEMUX modules can be cascaded to create an 8-Channel fiber common link. (Express port isolation is 15dB as default.)
  • 1310 Pass Band Port: The 1310 pass band port allows a legacy 1310nm signal to pass through the CWDM MUX DEMUX module. The port can be used to combine an existing legacy 1310nm network with CWDM channels, allowing the CWDM channels to be overlaid on the same fiber pair as the existing 1310nm network. (Note: When you choose 1310nm pass band port, the CWDM 1310nm wavelength channel is NOT available on the CWDM MUX modules.) Besides, the 1310nm port can be used in this way as an optical supervisory channel (OSC) and its range is 1270nm-1350nm (1310nm±40nm). (Note: When you choose 1310nm pass band as an OSC, the available range of wavelength is 1370nm~1610nm on the CWDM MUX modules.)
  • 1550 pass band port: The 1550 pass band port allows a legacy 1550nm signal to pass through the CWDM Mux/Demux module. The 1550nm port can also be used in this way as an optical supervisory channel (OSC) and its range is 1510nm-1590nm (1550nm±40nm). When you choose 1550nm pass band as an OSC, the available range of wavelength is 1270nm~1490nm on the CWDM MUX modules.

Note: that standard (or native) 1310nm and 1550nm wavelengths are not the same as CWDM 1310nm and CWDM 1550nm wavelengths. The center wavelength tolerances for legacy 1310nm and 1550nm are much wider than the CWDM equivalents, and therefore not precise enough to run through CWDM filters. When implementing a CWDM network, a standard wavelength can be converted to CWDM wavelength, or a CWDM Mux with a pass band port can overlay the standard wavelength onto the CWDM common link. A pass band port is an additional channel port on a CWDM MUX that allows a legacy 1310nm or 1550nm signal to pass through the network within a reserved band. The legacy device is connected directly to the pass band port via fiber cabling. Standard wavelengths can be converted to CWDM wavelengths using CWDM Small Form Pluggable (SFP) transceivers, transponders, and media converters that support SFPs.


Since adding new fiber optic cables for signal transmission of the devices would cost too much, IT managers would turn to use OADM in CWDM network, which can couple two or more wavelengths into a single fiber as well as the reverse process, saving a lot of money and installation time when they want to add or drop signal on a single fiber. FS.COM provides a wide selection of CWDM OADM which can add or drop fiber count of 1, 2 and 4. And these OADMs can be categorized into three type with different package form factors: plug-in module, pigtailed ABS box and rack mount chassis. The plug-in modules can be installed in empty rack enclosures. Three CWDM OADM types with different package form factors are shown below.

plug-in module, pigtailed ABS box and rack mount chassis


CWDM is a popular technology which can provide cost-effective solutions for users to upgrade their network using the least fiber strands. FS.COM provides a series of devices used in CWDM network, like CWDM Mux/Demux with different optical port configurations, CWDM OADMs, CWDM transceiver modules, etc. For any requirement, please visit FS.COM.

Several Types of Fiber Optic Tool Kits

Every professional fiber optic installer needs a complete set of fiber optic tools and test equipment. The tools used in the kits are thoughtfully assembled and are stored in high quality cases, keeping them safe, neat and in proper working order. This article will introduce several types of fiber optic tool kits.

Kits for Fiber Optic Splicing

This professional tool kit is ideal for optical fiber fusion splicing. It includes Clauss Fiber Optic Strippers (CFS-2), Fiber Optic Kevlar Cutter (KC-1), Optical Fiber Jacket Stripper (HW-108), 7″ Lineman’s Pliers, 6″ Side Cut Pliers 130mm, 6″ needle Nose Pliers 135mm, Steel Wire Cutter (HWC-6), Monkey Wrench, Metal Saw (small), Precision Tweezers, Straight Screwdriver (mid-sized), Cross Screwdriver (mid-sized), Fiber Optic Cleaning Swab, Fiber Optic Cable Stripper (horizontal 3-32mm),Pen Style Fiber Optic Cutter, Strraight Screwdriver (small), Cross Screwdriver (small), RCS Fiber Optic Cable Stripper (horizontal and vertical), Precision Screw Set (6pc), Hex Key Set (9pc), Black Marker, Utility Knife, Measuring Tape, Blow Brush, Alcohol Bottle (no alcohol included), Rugged Carrying Tool Case (430mm X 330mm X135mm).

Fusion Splicing Tool Kit HW-6300N


FS-04U tool kit is mainly used for construction, inspection and maintenance of fiber optic cable (aerial, duct and direct buried fiber optic cable, etc) in Telecommunications, Power, Defense and IT infrastructure. It provides in service stripping and solves the difficulty of stripping loose tube.

The equipment could be still in operation after the jacket and loose tube is stripped. By placing with main standby fiber, it will avoid service interruption or shorten the interruption span. According to its characteristics of maintenance and construction of fiber optic cable, emergency repair on fiber optic cable is under three conditions: restore and replace fiber optic cable; restore the broken fiber; split fiber optic cable.

In the premise of no communication interruption, it improves maintenance quality of fiber optic cable and minimizes economic loss to the maximum. The suitcase is made of once forming high strength plastic, strong, shock-proof and of long use life.

Kits Content: Fiber optic stripper CFS-2, KEVLAR Scissor KC-1, Fiber Jacket Stripper HW-108, Pocket Visual Fault Locator (Optional), High Precision Fiber Cleaver (Optional), Universal fiber Cable Slitter (3.2-35mm), Longitudinal Cable Sheath Slitter KMS-K, Ideal 45-162 Buffer tube stripper, 6-IN-1 Mini Pen-style Scredriver, 4-IN-1 Magnetic Quick Change Scredriver, 6″ Needle Node Pliers 135mm, 6″ Side Cut Pliers 130mm, Round Cable Cutter (HW-19c), 7Pcs Folding type hex key set (inch), 6″ Adjustable wrench, Fiber Optic Splice Protection Sleeve-Single Fiber 60mm 100PCS, 250ml Bottle of Alcohol with Lock, 2.5mm Foam Tipped Fiber Optic Swab 50/pkg, Pre-Moistened Alcohol Wipes 10PCS, 3M Electrical Tape, Blow Brush (MS-15C), Utility knife, 3.5M Tape Measure, Precision tweezer, Black Marker, Carrying Tool Case (430×330×135mm).

Fiber Optic Cable Fusion Splicing Tool Kit FS-04U

Kits for Fiber Optic Polishing

The fiber optic polishing tool kit FS-03E is a kind of kit that including Fiber optic stripper CFS-2, KEVLAR Scissor KC-1, Cabide Scibe Tool TTK-174A, Fiber Jacket Stripper, Universal Connector Crimp Tool, 200x Deluxe fiber microscope HW200ME, Epoxy Application Syringe 3ml, 5μm Polish Film,1μm Polish Film, 0.5μm Polish Film, 2.5mm Universal Polish Puck, Rubber Polish Pad, Glass Polish Plate,Safety Glasses, IPA Cleaning Wipes(PreMoistened), LintFree Wipes, Cleaning Swabs 25pcs/bag, Water Bottle Black Marker, Carrying Tool Case(385×275×110mm).

fiber optic polishing tool kit FS-03E

Kits for Fiber Optic Testing

The FTTH fiber optic test tool kit FS-1001 is a kind of kit that including Precision Fiber Cleaver, Optical Power Meter, Visual Fault Locator (10km), Round Cable Slitter, Fiber Optic Kevlar Cutter, Fiber Optic Stripper CFS-2, 6″Side Cut Pliers, 250ml Alcohol dispensing bottle with locked, Kim Wipes, Carrying Tool Case (385x275x110mm).

FTTH fiber optic test tool kit FS-1001

Kits for Fiber Connector Termination

Fiber connector termination tool kit FB-3601—fiber optic polishing and fiber termination tool kit, contains all of the latest popular fiber optic tools and consumable material necessary for epoxy and polish connector terminations (SC/ST/FC and LC connectors). Here is a figure for you.

Kits Content: Fiber optic stripper CFS-2, KEVLAR Scissor KC-1, Cabide Scibe Tool TK-17A, Fiber Jacket Stripper HC-18, Universal Connector Crimp Tool Jw-336J, IDEAL 45-162 Buffer tube stripper, Round Cable Jacket Stripper HE-335, LC/MU adapter for 400x Microscope, Flexible piano wire, 4-IN-1 Magnetic Quick Change Scredriver, Precision tweezer, 24 Port Connnector, Hot Oven (AC110v or AC220v), Epoxy Application Syringe 3ml, 5μm Polish Film 10pcs, 1μm Polish Film 10PCS, 0.5μm Polish Film 10PCS, 2.5mm Universal Polish Puck, LC/MU polish puck, 5.9″ Rubber Polish Pad, 5.9″ Glass Polish Plate, Large Black Work Mat (15″×11″), 10 IPA Fiber Cleaning Wipes(Pre-Moistened), KimWipes 280piece/box, Cleaning Swabs 50/pkg, 3M Electrician Tape, Utility knife, Utility component box, Black Marker, Carrying Case (430x330x135mm).

Fiber connector termination tool kit FB-3601

Kits for Optical Fiber Construction

There are many different kinds and models of tools in this optical fiber construction tool kit CTN-226 which are very important in the fiber optic installation and maintenance works.

Kits Content: Coaxial cable stripper, 3m Tapeline, Powerful plier, Powerful straight scissors, Powerful bent scissors, Black Marker, Mini torch, Cable stripping plier, Utility knife, 8″adjustable wrench, Wire cutter, 6PCS insulated screwdriver set, Multi socket & screwdriver set, 9PCS hex key set, Cleaning ball, 6″flat nose plier, 6″long nose plier, 6″diagonal cutting plier, Test screwdriver, 8PCS precision screwdriver set, Tweezer, Pipe cutter, Screwdrivers, +6Χ150mm -6Χ150mm, Aluminum-make tool case.

optical fiber construction tool kit CTN-226


Fiber optic splicing kits include mechanical splice kit and fusion splicing kit which are used in fiber optic splicing. Fiber optic test tool kit is used to inspect fiber optic equipment during the production or for trouble shooting. Fiber termination kit is used for fiber termination and contains tools those used to strip, prep, terminate, crimp, polish and inspect fiber optic cable connectors. FS.COM provides various types of fiber optic tool kits including mechanical splice kits, fusion splicing kits, fiber optic test tool kits, fiber termination kits, optical fiber construction tool kits and fiber optic polishing tool kits. If you want to know more details, you can visit our site.