Compatible Gigabit SFP Optical Transceiver for Netonix WISP Switch

The Netonix WISP switch is the managed PoE Gigabit Switches with several Gigabit Ethernet RJ45 and SFP ports. Compared with Ubiquiti Networks Edgeswitch switches (40C), Netonix WISP switches was designed with a rugged chassis and extended operating temperature (-25 to 55C), which is more suitable for outdoor deployment. Furthermore, the ability to power AirFibers is the unique feature of WISP switches. This article will describe WISP switches in detail and help you choose the compatible Gigabit SFP optical transceivers for Netonix WISP switches.

Netonix Gigabit WISP Switches

WISP switches are the Netonix Gigabit switches with the performance of Non-Blocking Throughput Switching and software configuration passive PoE. The Netonix WISP switches feature the ability to power many popular 24V, 48V/50V passive PoE devices from manufacturers including Ubiquiti Networks airMAX™, UniFi™, SAF™, MIMOSA™, Ligowav™, and airFIBER™ product lines. There are WS-24-400A, WS-24-400B, WS-12-250A, WS-12-250B, WS-12-250-DC, WS-12-250-AC, WS-12-DC, WS-10-250-AC, WS-8-250-DC, WS-8-250-AC, WS-8-150-DC, WS-8-150-AC, and WS-6-MINI.


Note that: the No. “6”, “8”, “10”… in those model refers to the numbers of port. And “150” and “250” means the max power consumption. The above image shows the simple home network setup using WS-6-MINI switches.

Optical Transceiver Tested to Work Well in WISP Switches

According to Netonix community, the SFP (optical module form factor) Gigabit Ethernet ports on WISP switches accommodate a full range of SFP optical transceiver modules, including SFP 1000BASE-T, SFP 1000BASE-SX, SFP 1000Base-LX/LH, SFP 1000BASE-ZX, SFP 1000BASE-BX-D, SFP 1000BASE-BX-U, SFP 1000BASE-EX. The following SFP optical transceivers are reported to be working fine on WISP switches.

Major Branded Optical Transceivers For WISP Switches

Original SFP transceiver module

optical transceiver

Compatible Optical Transceivers for WISP Switches

Fiberstore compatible optical transceivers are reported to work well on Netonix WISP switches. The following table lists the detailed information about the compatible optical transceiver modules on WISP switches.

FS.COM compatible optical transceiver for WISP switches


The Netonix WISP switches were designed to be part of the Small Business or home networking products that work together as part of proven, fully integrated, easy-to-use small business solution. These switches support a huge number of Gigabit Ethernet SFP optical transceivers. All these high-quality fiber optic transceivers can be found on FS.COM for competitive prices. FS.COM is committed to provide free shipping in USA, Mexico and Australia.

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Describing Cisco GLC 1000BASE SFP Transceiver Modules

Cisco SFP module, compatible with 1000BASE Gigabit Ethernet standard is a hot-swappable input/output device that can plug into a Gigabit Ethernet slot of Cisco switches and routers. Cisco, as a telecom giant supplies a whole series of fiber optic transceiver modules available in 1000BASE-T, 10/100/1000BASE-T, 1000BASE-SX, 1000BASE-LX, 1000BASE-EX, 1000BASE-ZX standards. It is truly dizzying to choose from a whole array of Cisco SFP transceivers, and each often has only minor differences between them. Thus, to help customers choose the suitable Cisco SFP modules, this article will clearly introduce several Cisco GLC modules.

Cisco Switch with SFP module

Figure 1 shows Cisco SFP plugging into the Cisco Nexus 9396 switches.


GLC-T is 1000BASE-T Cisco SFP copper 1g module, compliant to IEEE 802.3, operates over Cat5 copper wire for a distance of 100m. Cisco GLC-T fiber transceivers provide 1Gbps data transfer for full duplex Gigabit Ethernet connectivity.


Similar with GLC-T SFP modules, GLC-TE provides a link length of 100m over Cat5 copper wires. The only difference between these two SFP modules lies in the operating temperature range. GLC-T SFP is commercial temperature range (COM) from 0 to 70°C (32 to 158°F), while GLC-TE is Extended temperature range (EXT) from -5 to 85°C (23 to 185°F).

GLC-TE with RJ45 connector

Figure 2 displays GLC-TE SFP module with RJ45 connector.


GLC-SX-MMD resembles with GLC-SX-MM module. Both are the Cisco 1000BASE-SX SFP modules operating at the wavelength of 850nm. When connecting with OM2 multimode fibers, this optical transceivers can support up to 550m. However, GLC-SX-MMD allows data rate of 1000Mbps with digital optical monitoring (DOM) support, which performs transceiver monitoring and troubleshooting operation.


SFP-GE-S is compliant with 1000BASE-SX standard. It operates over multimode fibers with a wavelength of 850nm at 550m. Unlike GLC-SX-MM, SFP-GE-S support DOM performance and extended operating temperature range.


Compliant with 1000BASE-LX/LH standard, Cisco GLC-LH-SMD can support a large longer distance of 10km. The letter “D” also refers to the DOM support. It operates at longer wavelength of 1310nm over duplex LC single-mode fibers.

GLC-LH-SMD with LC connector

Figure 3 presents GLC-LH-SMD with LC connectors.


Cisco GLC-LH-SM-20 is the advanced version of GLC-LH-SM spec, which operate at 1310nm wavelength through LC connector with a transmitting distance of up to 20km.


GLC-EX-SMD is the Cisco 1.25Gbps SFP module that is compliant with 1000BASE-EX standard. It operates over 1310nm for distance up to 40km.


Compatible with 1000BASE-EX Gigabit Ethernet standard, this Cisco SFP also support a link length of 40km with DOM support. But unlike GLC-EX-SMD operating at 1310nm, this optical transceiver module works over 1550nm wavelength.


As the name implies, Cisco GLC-ZX-SM is compliant with 1000BASE-ZX standard for single-mode fibers. When used in Cisco 2960 switch, it can support a link length of up to 70km at 1550nm.


If the GLC-ZX-SM with a distance of 70km can not meet your network requirement, then you can use the GLC-EZX-SM-100 modules for 100km.


GLC-EZX-SM-120 with a operating wavelength of 1550nm can reach up to 120km over single-mode fibers.


This article lists several Cisco SFPs with detailed specification, such as the media type, supporting distance, wavelength, operating temperature range, etc. If you have Cisco switches and don’t know how to choose the suitable SFPs, you can have a look through this article or directly visit

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Cisco SFP Transceivers Overview

Cisco Small Form-Factor Pluggable (SFP) transceiver can be defined as a device that comprises of both a transmitter and a receiver of analog or digital signals. It is a compact, hot swappable, input/output device based on the available fiber cable type (copper cable or multimode/single-mode optical fiber). In addition, SFP transceivers can be leveraged both at 100Base and 1000Base rates in the following standards:


SFP transceivers are mainly used to link equipment in telecommunication and data communications like switches and routers. They support applications like 2G/4G Fiber Channel, SONET/SDH Network, Gigabit Ethernet, High-speed computer links, and with CWDM and DWDM interfaces. Today’s article will generally introduce the Cisco SFP transceivers including the Cisco 100M SFP, Cisco 1000BASE SFP, CWDM/DWDM SFP, SONET/SDH SFP as well as Cisco BiDi SFP to you.

Cisco 100Mbqs SFP

Cisco offers two different types of 100BASE SFP—100BASE SFP for Fast Ethernet (FE) SFP Port and 1000BASE SFP for Gigabit Ethernet (GE) port. Besides the above standards, the Cisco 100BASE SFP portfolio includes 100BASE-FX, 100BASE-LX, and 100BASE-BX SFPs.

Cisco 100BASE-FX SFP operates on MMF for link spans of up to 2km. 100BASE-LX SFP operates on SMF up to 10km. 100BASE-BX SFP operates on SMF for a link length of up to 10km. A pair of a 100BASE-BX-D and a 100BASE-BX-U SFP is needed for the single strand deployment. The following table displays the compatible Cisco 100M and 1G SFPs from FS.COM.


Cisco 1000BASE SFP

Cisco 1G SFP transceivers offer a convenient and cost-effective solution for the adoption of Gigabit Ethernet and Fibre Channel in data center, campus, metropolitan area access and ring networks, and storage area networks. They are available in several Gigabit standards—1000BASE-T, 1000BASE-SX, 1000BASE-LH, 1000BASE-EX, etc. Take Cisco GLC-LH-SM as an example, it operates over standard single-mode fiber spanning distances of up to 10 km and up to 550 m over any multimode fiber (OM3/OM4). If 1000BASE-LX/LH SFP transceiver transmits in the 1300nm wavelength over OM1/OM2 fiber, it requires mode conditioning patch cables.

Cisco CWDM/DWDM SFP Modules

Cisco Coarse Wave Division Multiplexing (CWDM) solution allows scalable and easy-to-deploy Gigabit Ethernet and Fibre Channel services. Similar with traditional SFP module, the Cisco CWDM SFP is a hot-swappable input/output device that plugs into a SFP port or slot of a switch or router. CWDM SFP transceiver modules make use of the SFP interface for connecting the equipment and use dual LC/PC fiber connector interface for connecting the optical network with a link distance of up to 80km. It usually comes in 8 wavelengths covering from 1470 nm to 1610 nm. Color markings on the devices identify the wavelength to which the Gigabit Ethernet channel is mapped. The following picture lists the FS.COM compatible Cisco CWDM SFPs with their wavelengths and color codes.


DWDM (Dense Wavelength-Division Multiplexing) SFP transceivers, however, are used as part of a DWDM optical network to provide high-capacity bandwidth across an optical fiber network. Cisco DWDM SFP is a high performance, cost effective module for serial optical data communication applications up to 4.25Gb/s. There are 32 fixed-wavelength DWDM SFPs that support the International Telecommunications Union (ITU) 100-GHz wavelength grid.

Cisco SONET/SDH SFP Modules

This Cisco SONET/SDH SFP is compatible with the SONET/SDH standards, and support the digital diagnostic functions specified in the SFF-8742 Multi-Source Agreement (MSA). Cisco SONET/SDH SFP can be directly plugged into a variety of ports on Cisco router interfaces. These SFP optics support OC-3, OC-12, and OC-48 data rates for multimode, short-reach, intermediate-reach, and long-reach (up to 80 km) applications just as seen in the below chart.


Cisco BiDi SFPs

Bidirectional (BiDi) SFP transceivers can transmit and receive data to/from interconnected equipment through a single optical fiber. BiDi transceivers are fitted with wavelength division multiplexing (WDM) diplexers, which combine and separate data transmitted over a single fiber based on the wavelengths of the light. BiDi transceivers must be deployed in matched pairs, with their diplexers tuned to match the expected wavelength of the transmitter and receiver that they will be transmitting data from or to. These transceivers offer bi-directional data links over single-mode fiber up to 120 km.

Take 1000BASE-BX SFP BiDi transceiver as an example, 1000BASE-BX SFP modules are compliant with SFP Multi-Source Agreement (MSA) specification and SFF-8472, and conform to the IEEE 802.3ah 1000BASE-BX10 standard. 1000BASE-BX SFP modules include 1000BASE-BX-U SFP module and 1000BASE-BX-D SFP module. The 1000BASE-BX-D SFP operates at wavelengths of 1490nm TX/1310nm RX, and the 1000BASE-BX-U SFP operates at wavelengths of 1310nm TX/1490nm RX. These transceivers use standard simplex LC connectors for fiber cable connection and provide a long transmission distance of up to 10 km.


It is necessary to select the suitable SFP transceivers for your network. This article has concluded several types of Cisco SFP transceivers, which might be a great help for those who are looking for Cisco SFPs. FS.COM, a leading and professional fiber optic SFP transceiver module provider, has a large inventory of 1000BASE SFP, 100BASE SFP, CWDM/DWDM SFP, BiDi SFP, etc. If you have any needs of our transceivers, please send your request to us.

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C3KX-NM-10G Network Module Overview

Questions like whether a 1G SFP can be used on the SFP+ port of the switch and support 10G data rate are frequently asked by overall users. Generally, you will get the answer “no”. Because Most (95+%) SFPs and SFP+s will only run at the rated speed, no more, no less. Even though SFP and SFP+ have the same port size, it doesn’t mean that you can insert a SFP in a SFP+ port to achieve a 10G connectivity. Not to mention that some SFP+ port can only support 10G SFP+ optics. However, this article will introduce a Cisco Network module in Cisco Catalyst 3750-X and 3650-X Series switches that can both support 1 GbE SFP and 10 GbE SFP+ transceivers.

C3KX-NM-10G Network Module

The Cisco Catalyst 3750-X and 3560-X series switches support four optional network modules for uplink ports, namely C3KX-NM-1G (four GbE port network module), C3KX-NM-10G (two 10GbE SFP+ ports network module with four physical ports with two SFP+ and two regular SFP ports), C3KX-NM-10GT (two 10GB-T ports network module), C3KX-SM-10G (service module with two 10GbE SFP+ ports network module for Netflow and MACsec encryption). C3KX-NM-10G module on the Cisco Catalyst 3750-X and 3560-X has two installation screws on each side, which make it easy to switch things out and make new connection without a fuss. What’s more, when business demands changes, the C3KX-NM-10G network module allows customers to only upgrade their modules from 1 GbE to 10 GbE without replacing a comprehensive upgrade of switch.


As the above image shows, the C3KX-NM-10G network module has four slots—two SFP+ slots and two SFP slots. These four slots usually work in pair, with one pair supporting 1 GbE data rate and the other achieving 10 GbE. Note that you must use the same form factor transceiver in a pair and never mix the SFP module with SFP+ module. SFP+ can’t auto-negotiate down to 1G to support with SFP module.

To put it simply, let’s name the port from left to right as slot 1, slot 2, slot 3, slot 4. Usually a 10-Gigabit SFP+ module takes precedence over a 1-Gigabit SFP module. But it’s another case when an SFP module is first inserted in Slot 1 and has link. For example, if the SFP in Slot 1 retains link, you insert an SFP+ module in Slot 2 and it will not operate. If the SFP module in Slot 1 is shut down or removed, the SFP+ module in Slot 2 turns on. The SFP module in Slot 1 does not work as long as an SFP+ module is in Slot 2. The following chart concludes the accessible combination of SFP and SFP+ modules.


Suitable Cisco Transceivers for C3KX-NM-10G Network Module

As note before, C3KX-NM-10G module on the Cisco Catalyst 3750-X or 3560-X series switch can both support 1 Gigabit Ethernet and 10 Gigabit Ethernet data links. We will list the available Cisco modules attached with detailed information in the below charts.

Cisco SFP transceiver for C3KX-NM-10G module:


Cisco SFP+ transceiver for C3KX-NM-10G module:


There are many other compliant Cisco SFP+ DAC and AOC cables that I haven’t listed above, if you are interested, you can visit


This post lists all of the functions of the Cisco C3KX-NM-10G network module, all the basic and advanced features and tells you how to select the compliant Cisco SFP modules and SFP+ modules. If you want to expand your database from 1GbE to 10GbE, with the Cisco C3KX-NM-10G network module, you only need to upgrade your Cisco SFP and plug it with a brand new SFP+ transceiver, then that’s it.

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Using A GLC-SX-MM Transceiver To Connect Gigabit Ethernet Network

If you are still using a 100BASE network, or GBIC transceiver for a small office, you may run into the limitations of last decade’s technology. Because the 100BASE standard network is just fine for a small office, but it isn’t sufficient to handle heavier network use. As your network expands, you might experience problems like: dropouts in your VoIP calls, Sluggish data retrieval speeds, or poor video streaming quality. If you have encountered any of this, maybe it’s time to start thinking about an upgrade to gigabit Ethernet, which moves at ten times the speed of traditional Ethernet. This article will explain the Gigabit Ethernet in the following aspects: the compatible SFP transceiver, the difference between twisted copper and fiber optic Ethernet.

Compatible SFP Transceiver

When contemplating an upgrade to gigabit Ethernet, there are a number of issues involved in the network transition. But one of the most immediate concerns people have is how much new hardware they’ll have to purchase. The good news is that one of the basic issues providing connectivity is generally quite easy.

Cisco SFP

The representative of the optical transceivers for Gigabit Ethernet is Small Form-factor Pluggable (SFP). These Small Form-factor Pluggable slots allow transceivers like the GLC-SX-MM to be plugged in and provide instant gigabit Ethernet connectivity. In the last few years, when you purchased your networking equipment, it should have some industry-standard SFP ports, based on a Cisco standard. And you can only purchase the original expensive SFPs. However, the monopolized SFP market is unhealthy for the development of optical technology, nowadays people can appreciate the low price and high performance of compatible SFP transceivers from OEM vendors.

How to Ensure the Compatibility of the SFP Transceiver

Although the OEM or alternative party compatible SFP transceivers are much cheaper than the original ones, people are hesitated to use them. In fact, there are mainly two factors that will have an impact on the compatibility of the SFP transceivers. First, does the SFP optics require DDM function? Second, does the host equipment check the ID code and lock out alternative party components?

Certainly from our experience, most Cisco core equipment and routers do lock out all but Cisco ID SFP modules. We do not have an extensive report on what Cisco equipment does and does not lock out third party SFP.

The only way to know for sure is to try an authorized component if the host equipment rejects it. Remember, the compatibility has nothing to do with the functions of the transceiver, only in recognizing ID code and selecting to lock out third party SFP or not.

Fiber Optic Cabling Over Copper-wire Cabling

Choose to use copper-wire cabling or upgrade to fiber optic cabling in your offices is another consideration when installing a network. There is no doubt that fiber optics provide several advantages over copper, but it is more expensive than copper cabling. In addition, fiber optic supports far longer cable lengths than twisted copper.

Copper can only run for around 100 meters, whereas fiber can go between 200 and 500 feet, or more, without signal loss. Fiber has gives off no radio interference, allowing it to coexist more easily in an office with a lot of wireless devices. Because of the lack of interference, fiber is also harder to hack into than copper.

For equivalent data rates, optical cable is thinner and lighter than copper wire, and it does not need to be shielded. For these reasons, an optical cable is often lighter in weight and less bulky, and has a smaller bend radius, than the equivalent copper cable, especially with longer cables. These advantages of fiber provide more data center configuration flexibility.

cable thickness

Just as with copper, a standard GLC-SX-MM transceiver links fiber optic Ethernet with your existing equipment. Or the GLC-SX-MM-RGD transceiver is also just great for your network, which is the 1000BASE-SX SFP GLC-SX-MM transceiver with DOM support.

For future proofing, moving away from copper is probably a good idea. Fiber optics are growing steadily in popularity among businesses which have taken over large office buildings, created expansive complexes, or need to collaborate with remote offices in real time.

Additional Information

The biggest advantage of Cisco’s SFP system is that it’s entirely hot-swappable. It doesn’t matter what the device is, from servers to your switch to simple Ethernet cards: If it has an SFP port on it, it can support a multitude of transceivers for different functions, through one standardized interface. In fact, that standardization means that third parties can produce transceivers which are as good as official Cisco units. So, if you decide that fiber optic gigabit Ethernet is what you need for your future business communications needs, the GLC-SX-MM transceiver is truly simple to install and use.


End-users are wondering about whether they should upgrade to higher-bandwidth network as the existing network like 100BASE standard is fine for their network. However, the transition to higher internet speed is going to happen sooner or later. There are several different gigabit Ethernet standards out there, so keep in mind to see which best fits your vision for the future of your business. Note that you’ll need transceivers like the GLC-SX-MM to connect your existing devices to the new network.

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Copper & Optical SFP Modules

In order to maintain the configuration flexibility and establish connections that allow smooth data transfer from the source to the end point, SFP transceiver modules are utilized in the copper or optical Gigabit Ethernet (GbE) networks. SFP (Small Form-factor Pluggable) is a compact, hot-swappable, input/output device used in data communication and telecommunications networks. SFP interfaces between communication devices like switches, routers and fiber optic cables, performing optical and electrical signal conversion. There are many copper an optical SFP transceivers based on different GbE physical layers, such as Cisco 1000BASE-T SFP-GE-T and 1000BASE-SX SFP MGBSX1.

GbE Development

The initial standard for GbE was produced by the IEEE in June 1998 as IEEE 802.3z. Two designs were ratified in IEEE 802.3z to transmit signals over optical cables: the 1000BASE-SX uses short-wavelength laser (850nm) on multi-mode fiber (MMF), and the 1000BASE-LX uses long-wavelength laser (1310nm) on the standard single-mode fiber (SMF). At that time, transmitting 1000Mbps signals on the widely deployed Category 5 UTP was a significant challenge for silicon-chip designers. It requires tremendous signal processing to mitigate the channel impairments in copper wires such as ISI (intersymbol interference) introduced by limited channel bandwidth and signal crosstalks between pairs of copper wires. It was not until a year later that the 1000BASE-T standard (IEEE 802.3ab) was finished. To keep the cost of GbE low, the IEEE 802.3z committee very conservatively defined the transmission distance limit of 1000BASE-SX as 300m, and that of 1000BASE-LX as 5 km.

SFP Port Types

Specified by the Multisource Agreement (MSA), SFP, also known as a mini gigabit interface converter (GBIC), delivers the similar functions just as what a GBIC does, but designed with a much smaller size. As mentioned above, SFP transceiver has several interfaces which are standardized to work on SMFs and MMFs. Besides, SFP transceivers are also available with copper cable interfaces, like 1000BASE-T. This means that SFP module which is designed primarily for optical fiber communications can also communicate over unshielded twisted pair (UTP) cables. The image below shows different GbE SFP standards.

GbE SFP standards

  • Copper SFP Modules

The development of copper technology in SFP modules is of great importance in enabling system designers to meet objectives while simplifying their inventory and reducing operating costs. These copper SFP transceivers scale Ethernet 10/100Mbps performance to 1000Mbps. Compared with 1Gbps, 1000BASE-T is 100 times as fast as the standard Ethernet. Additionally, the Full Duplex Repeaters (FDRs), when coupled with 1000BASE-T, offer an easy-to-manage, high-burst rate, and shared-media solution capable of supporting both end users and server farms. Popular copper SFP products, like Cisco SFP-GE-T, are used in Gigabit networks and they are fully compatible with 1000Base-T.

copper sfp module

  • Optical SFP Modules

Both 1000BASE-SX and 1000BASE-LX are standardized for fiber optics. They share the 8B/10B 1000BASE-X PCS line coding. In addition to the transmission media, the only difference between 1000BASE-SX and 1000BASE-LX lies in the physical medium dependent (PMD) layer which defines the laser transmitter and photodetector. The interface between the physical medium attachment (PMA) and PMD layer is simply a serial interface. This made it easy to reuse all the designs between 1000BSAE-SX and 1000BASE-LX except the PMD transceiver.

optical sfp module

Modern optical SFP modules support digital diagnostics monitoring (DDM) functions, also known as digital optical monitoring (DOM). This feature gives users the ability to monitor the real-time parameters of SFP, such as optical output power, optical input power, temperature, laser-bias current and transceiver supply voltage. The real-time diagnostic parameters can be monitored to alert the system when the transceiver’s specified operating limits are exceeded and compliance cannot be ensured. What’s more, the DDM function can be used to isolate the particular location of fault in fiber optic network system. Combining the DDM interface status flags, transceiver hard pins and diagnostic parametric monitor data the specific location and cause of a link failure can be pinpointed. Certainly, DDM function also has its role in failure prediction on fiber optic links, which is based on the transceiver parametric performance., including device faults and high error rate conditions.

SFP Module Applications

Apart from GbE, SFP modules can also support other communications standards, including synchronous optical networking (SONET)/synchronous digital hierarchy (SDH), and fiber channel. They allow the transport of fast Ethernet and GbE LAN packets over time-division-multiplexing-based WANs, as well as the transmission of E1/T1 streams over packet-switched networks.

SFP Purchasing Tips

When picking such a SFP module for your network, the first important factor to be considered is the price, especially for those small and medium-sized enterprises who have a tight budget. The other points go to the product compatibility, stability, and reliability. Otherwise, no matter how low the price is, it’s of no use.


Copper and optical SFP modules have proven themselves as the useful devices for the increased bandwidth requirements of users with each passing day. Fiberstore supplies a wide range of SFPs to support both copper and optical interfaces. They are fully compatible with such famous brands as Cisco, Juniper, D-Link (ie. DEM-311GT). Here just lists a few for your reference. For more information about SFP modules, you can visit Fiberstore directly.

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