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FIBER OPTIC CABLING SOLUTIONS THE LARGEST SOLUTIONS OF PRE-TERMINATED FIBER OPTICS, INCLUDING MULTIMODE AND SINGLE-MODE PATCH CORDS, MTP/MPO FIBER TRUNKS AND HARNESSES, PLUG-N-PLAY MODULES/CASSETTES AND FIBER ENCLOSURES. Menu Skip to content * home * Fiber Optic Transceivers * SFP Transceiver * SFP+ Transceiver * QSFP+ Transceiver * 100G Transceiver * Switch & Transceiver * Transceivers Common Sense * Cabling Solutions * MPO/MTP solutions * Single Mode Fiber (SMF) * Multi Mode Fiber (MMF) * Fiber Patch Cord * Bulk Fiber Cable * Cat5/Cat6/Cat7 Network Cable * Optical Solutions * CWDM & DWDM Solution * Fiber Media Converter * Passive Optical Network * Optics Common Sense * Cable Management * Fiber Patch Panel * Fiber Optic Enclosures * Fiber Adapter Panels * Fiber Optical Faceplate * Tools & Testers * Fiber Optic Testers * Fiber Optic Tools * Fiber Optic Splicing TAG ARCHIVES: SFP PORT GIGABIT SLOTS: SFP PORT VS. RJ45 PORT VS. GBIC PORT FacebookTwitterLinkedInRedditTumblr In Gigabit Ethernet applications, either SFP port, RJ45 port or GBIC port is used in different Gigabit devices, such as switches, routers, servers and storages. And some latest wireless access points (APs) are also equipped with SFP port. Since all these three port types only support 1Gbit and do not go any higher, why are they created instead of using only one type? SFP PORT VS. GBIC PORT: AN IMPROVEMENT IN DIMENSION SFP port and GBIC port can be found in a variety of equipment, including Ethernet switches, routers, network interface cards, servers, etc. Today most Ethernet switches are designed with as least one or two Gigabit SFP uplink slots. What is SFP port? As the name implies, SFP port is intended for taking in SFP (mini-GBIC) fiber modules with small form-factor (SFF) connectors, while GBIC port is for accepting GBIC modules. The two types of ports can provide the same data rates and same distances in Gigabit applications, but the same number of SFP ports uses less space than that of GBIC ports. Since they have the equal functionality, SFP has gradually taken the place of the older GBIC in Gigabit networking for space-saving and economical reasons. The table below is a comparison of SFP port vs. GBIC port. Parameter SFP Port GBIC Port Supported Optical Modules SFP transceiver (single-mode/multimode, simple/duplex, CWDM/DWDM) GBIC transceiver (single-mode/multimode, simple/duplex, CWDM/DWDM) Transceiver Receptacle Type LC, RJ45 SC, RJ45 Supported Standards 1000BASE-T, 1000BASE-SX, 1000BASE-LX, 1000BASE-LX10, 1000BASE-LX/LH, 1000BASE-LH, 1000BASE-EX, 1000BASE-ZX, 1000BASE-BX, 1000BASE-CWDM, 1000BASE-DWDM. Supported Distances Up to 100 m, 300 m, 2 km, 10 km, 20 km, 40 km, 80 km, 100 km, 150 km. Module DOM Function Modules support digital optical monitoring (DOM) function, providing real-time monitoring of transceiver’s operation temperature, optical input, optical output, laser bias current and supply voltage. If you want to know more about the SFP types that the SFP port support and their detailed specifications, such as wavelengths and distances, you can read: How Many Types of SFP Transceivers Do You Know. SFP VS. RJ45 PORT: DISTANCE MAKES DIFFERENCE The RJ45 ports in Gigabit networking devices follow the 1000BASE-T Ethernet standard. They only support twisted pairs for network connections, and the distance is limited to 100 m (330 feet). RJ45 port uses Category 5/5e/6 and higher level copper Ethernet cables for 1Gbit transmission. Compared with switch using only RJ45 port, SFP port switch supports more types of communication cables and longer reaches of links. Here are the differences between SFP vs. RJ45 port. Parameter SFP Port RJ45 Port Connection Cable Types Multimode fiber cable, single-mode fiber cable, twisted pairs (Cat5, Cat6 or higher). Twisted pairs (Cat5, Cat6 or higher). Max. Transmission Distance MMF (550 m), SMF (150 km), Cat5 (100 m) 100 m (330 ft) Data Rate 1000 Mbps (1G) 1000 Mbps (1G) Since most end-points at the customer’s are still using RJ45 port, in order to retaining the convenience of RJ45 port while providing the advantage of SFP network to customers, some switches include combo SFP/RJ45 ports. So users can choose to utilize either the SFP port or the RJ45 port at a time for short-distance connections. WHAT IS DUAL-RATE SFP PORT? Unlike the combo SFP/RJ45 port which is actually a link shared by two different ports, a dual-rate SFP port is one single SFP slot that can be configured to support two different data rates. Generally a dual-rate SFP slot can set to be either 1G mode or 10G mode, i.e., an SFP module or an SFP+ module can be installed in it. But the actual data rate of the transmission depends on the mode being settled and the transceiver module being used. There are several cases: * The dual-rate SFP slot is 10G activated, and an SFP+ module is installed; the interface is in 10G mode. * The port is 10G activated, but an SFP module is installed; the interface is in 1G mode. * The port is not 10G activated, but an SFP+ module is installed; the interface will be link down state. * The port is not 10G activated, and an SFP module is installed; the interface is in 1G mode. SUMMARY The three port types—SFP port, RJ45 port and GBIC port—are used in different networking equipment. The SFP port is now more commonly used than GBIC port since the former one provides the same function and is more compact. When SFP port vs. RJ45 port, SFP port supports connectivity through varieties of fiber cables and the copper twisted pairs, and a wide range of link distances, but RJ45 port accepts only twisted pair cables and a shorter distance. Since every thing has both two sides, it is not always the best to choose SFP slot. The two articles: GBIC vs SFP: When It’s Best to Use GBIC and When to Use SFP, and RJ45 vs SFP: Which Should I Use to Connect Two Switches, specifically discussed when to use which port/module type. This entry was posted in Network Switches and tagged GBIC port, RJ45 port, SFP port, SFP slot, SFP vs. RJ45 on February 7, 2018 by Alice.Gui. COMPATIBLE CISCO 2960 SFP FOR CISCO 2960 SERIES SWITCHES FacebookTwitterLinkedInRedditTumblr Cisco Catalyst 2960 series switches are available in 2960, 2960-S, 2960-SF, 2960-X and many other types. The Cisco 2960-S and 2960-SF series are the newest members of the 2960 family that offer a rich set of Layer 2 features. The 2960-S provides Gigabit Ethernet (10/100/1000) connectivity with 10G/1G SFP+ uplinks, and the 2960-SF provides Fast Ethernet (10/100) connectivity with 1G SFP uplinks. This blog mainly introduced the knowledge of 2960-SF series switches and their compatible Cisco 2960 SFP modules. Cisco Catalyst 2960-SF Series Switches Overview Cisco Catalyst 2960-SF series switches deliver secure and reliable LAN access for branch and medium-sized campus deployments. They enable reliable and secure business operations and lower total cost of ownership through a range of innovative features including FlexStack, Power over Ethernet Plus (PoE+), and Cisco Catalyst SmartOperations. These series switches include 7 models. 5 models with LAN Base Software and 2 models with LAN Lite Software. Cisco Catalyst 2960-SF Series Switches with LAN Base Software Switch Model Description Uplinks Available PoE Power 2960S-F48FPS-L 48 Ethernet 10/100 ports with PoE+ 4 SFP 740W 2960S-F48LPS-L 48 Ethernet 10/100 ports with PoE+ 4 SFP 370W 2960S-F24PS-L 24 Ethernet 10/100 ports with PoE+ 2 SFP 370W 2960S-F48TS-L 48 Ethernet 10/100 ports 4 SFP – 2960S-F24TS-L 24 Ethernet 10/100 ports 2 SFP – Cisco Catalyst 2960-SF Series Switches with LAN Lite Software 2960S-F48TS-S 48 Ethernet 10/100 ports 2 SFP – 2960S-F24TS-S 24 Ethernet 10/100 ports 2 SFP – What’s the Difference Between the LAN Base and LAN Lite Switches? The Cisco 2960-SF switches support the LAN Base and the LAN Lite software feature sets. The LAN Base feature set comes with advanced Layer 2(L2) features and is typically targeted at large enterprise customers. The LAN Lite feature set has entry-level L2 features and is targeted at mid market deployments. Following are the notable hardware differences: * Ease of management with Cisco FlexStack * Power of Ethernet (PoE/PoE+) capabilities * Increased number of VLANs * A wider selection of Small Form-Factor Pluggable (SFP) ports Compatible Cisco 2960 SFP for Cisco 2960-SF Series Switches By consulting the Cisco 100-Megabit Ethernet and Gigabit Ethernet SFP Modules Compatibility Matrix, I get following compatible Cisco 2960 SFP models that supported for 2960-SF series switches. Compatible Fast Ethernet SFP Modules for Cisco 2960-SF Series Switches Network Device Transceiver Model Description 2960S-F48TS-S 2960S-F24TS-S GLC-GE-100FX 100BASE-FX SFP 1310nm 2km GLC-FE-100FX 100BASE-FX SFP 1310nm 2km DOM Compatible Gigabit Ethernet SFP Modules for Cisco 2960-SF Series Switches Network Device Transceiver Model Description 2960S-F48TS-S 2960S-F24TS-S 2960S-F48FPS-L 2960S-F48LPS-L 2960S-F24PS-L 2960S-F48TS-L 2960S-F24TS-L GLC-T 1000BASE-T Copper RJ-45 100m GLC-TE 1000BASE-T Copper RJ-45 100m GLC-SX-MM 1000BASE-SX SFP 850nm 550m GLC-LH-SM 1000BASE-LX/LH SFP 1310nm 10km GLC-SX-MMD 1000BASE-SX SFP 850nm 550m DOM GLC-LH-SMD 1000BASE-LX/LH SFP 1310nm 10km DOM GLC-EX-SMD 1000BASE-EX SFP 1310nm 40km DOM Network Device Transceiver Model Description 2960S-F48FPS-L 2960S-F48LPS-L 2960S-F24PS-L 2960S-F48TS-L 2960S-F24TS-L GLC-ZX-SM 1000BASE-ZX SFP 1550nm 70km GLC-ZX-SMD 1000BASE-ZX SFP 1550nm 70km DOM GLC-BX-D BiDi SFP 1490nm-TX/1310nm-RX 10km GLC-BX-U BiDi SFP 1310nm-TX/1490nm-RX 10km CWDM SFP 1270nm-1610nm (20nm spacing) Conclusion Cisco 2960-SF Ethernet switch enables a wide range of business or residential applications and services. FS.COM offers all above Cisco compatible transceiver with reasonable prices and high performance. All those products are tested before shipping to ensure high quality. For more details, please visit www.fs.com or contact us via sales@fs.com. Related Article: Compatible Transceivers for Cisco Catalyst 4948E Switch This entry was posted in Switch & Transceiver and tagged Cisco 2960, Cisco 2960 SFP, Cisco compatible transceiver, Compatible SFP, ethernet switch, SFP port on November 22, 2016 by Alice.Gui. FULL CWDM MUX DEMUX AND CWDM SFP TRANSCEIVERS SOLUTIONS FacebookTwitterLinkedInRedditTumblr CWDM systems have channels at wavelengths spaced 20 nanometers (nm) apart, compared with 0.4 nm spacing for DWDM. This allows the use of low-cost, uncooled lasers for CWDM. In a typical CWDM system, laser emissions occur on full eighteen channels at eighteen defined wavelengths: 1610 nm, 1590 nm, 1570 nm, 1550 nm, 1530 nm, 1510 nm, 1490 nm, 1470 nm, 1450 nm, 1430 nm, 1410 nm, 1390 nm, 1370 nm, 1350 nm, 1330 nm, 1310 nm, 1290 nm, 1270 nm. Besides, for CWDM systems an industry standard color coding scheme is used. The latches of the CWDM SFP transceivers match the colored port indicators on the passive units therefore guaranteeing simple setup. Following color codes and wavelength are valid for CWDM. Full CWDM Channels (18 Channels) Mux Demux Solution The WDM system uses a multiplexer at the transmitter to combine several wavelengths together, each one carry different signal with bite-rate up to 10G and a demultiplexer at the receiver to split them apart. Both mux and demux are passive, requiring no power supply. The 18 Channels CWDM mux demux covers all channels of 1270nm to 1610nm in 20nm increments. Without replacing any infrastructure, it totally support data rates up to 180 Gbps by being completely protocol transparent. The main fields of applications are the use in SDH (STM-1, STM-4, STM-16, STM- 64), IP (Fast Ethernet, Gigabit Ethernet, 10 Gigabit) ATM and storage (1G, 2G, 4G, 8G, 10G Fibre Channel) networks. Connectors, located on the front of the CWDM mux demux modules, are labeled and use the same color-coding that is used to indicate the wavelength of the individual CWDM SFP transceivers (shown in the figure below). When fiber availability is limited, CWDM mux demux could increase the bandwidth on the existing fiber infrastructure. By using 18ch CWDM mux demux mentioned above and the CWDM SFP transceivers, up to 180 Gbps could be supported on a fiber pair. Full CWDM SFP Transceivers Solution CWDM SFP transceiver is based on the SFP form factor which is a MSA standard build. The max speed of this product is 1.25G and they are also available as 2.5G and of course the popular CWDM 10G SFP transceivers. The CWDM SFP transceiver has a specific laser which emits a “color” defined in the CWDM ITU grid. The CWDM ITU grid is defined from 1270 to 1610nm and has steps of 20nm. So the available wavelength is 1270nm, 1290nm, 1310nm, 1330nm, 1350nm, 1370nm, 1390nm, 1410nm, 1430nm, 1450nm, 1470nm, 1490nm, 1510nm, 1530nm, 1550nm, 1570nm, 1590nm and C. Besides, our CWDM SFP transceivers are similarly color-coded as the CWDM mux demux to help you match the right link connection (shown in the figure below). We can make the CWDM SFP transceivers compatible with every brand (Cisco, HP, H3C, Juniper, Huawei, Brocade, Arista). A lot of brands have vendor locking and only with the proper coding. Fiberstore is specialized in this rebranding or recoding. We have many different switches and routers in our test lab to test the coding. We also use different Optical Spectrum Analyzers to ensure the CWDM SFP transceiver is emitting the right color and has the correct power budget. The CWDM SFP transceiver is used in combination with passive CWDM mux demux, and we can provide you a complete solution and advice on which equipment fits best in your project. Please give us your project details and we will provide the most efficient and economical solution. 1270nm SFP 1290nm SFP 1310nm SFP 1330nm SFP 1350nm SFP 1370nm SFP 1390nm SFP 1410nm SFP 1430nm SFP 1450nm SFP 1470nm SFP 1490nm SFP 1510nm SFP 1530nm SFP 1550nm SFP 1570nm SFP 1590nm SFP 1610nm SFP This entry was posted in CWDM & DWDM Solution, SFP Transceiver and tagged Cisco SFP+, cwdm channels, cwdm mux, cwdm mux demux, CWDM SFP, CWDM SFP Transceivers, mux demux, SFP port on October 19, 2016 by Alice.Gui. CAN I USE SFP TRANSCEIVER IN SFP+ SLOT? FacebookTwitterLinkedInRedditTumblr A common confusion about SFP and SFP+ compatibility is that if I can use the SFP module in SFP+ slot. When I connect the SFP transceiver to SFP+ transceiver, can SFP+ negotiate down to 1G? Or is it possible to use SFP+ module in the SFP port on my switch? Can SFP+ copper twinax cable can negotiate down to 1G to support SFP? Can 1G and 10G can exist in the same link? All these questions usually create a giant headache for many engineers. After looking up many relevant documentation, now I will conclusion the answers in this article. SFP Can be Plugged into SFP+ Ports in Most Situations I’m not sure about the specific switch model, but as a general rule of thumb, SFPs will work in SFP+ slot, but SFP+ optics do not work in SFP slots. It’s just a power availability thing. When you plug the SFP module in SFP+ port, the speed of this port is 1G not the 10G. And sometimes this port will lock the speed at 1G until you reload the switch or do some fancy set of commands. Besides, the SFP+ port usually can never support speed under 1G. That is to say, we can’t plug the 100BASE SFP in the SFP+ port. In fact, for this question, it may depend greatly on the switch models – sometimes SFPs are supported in SFP+ ports, and sometimes not. For example, almost all SFP+ ports of Cisco switch can support SFPs and many SFP+ ports of Brocade switch only support SFP+. Though it’s feasible often, it’s safer to ask your switch vendor for some information. SFP+ Can’t Auto-negotiate Down to 1G to Support with SFP Module To my knowledge, unlike copper SFPs which are available in 10/100/1000 auto-negotiation, optics such as SFP and SFP+ do not support auto negotiation at all. In fact, Most (95+%) SFPs and SFP+s will only run at the rated speed, no more, no less. Besides, there is no such thing as a SFP+ that does 1G on one side (towards the fiber) and then does 10G on another side (towards the unit). Though we can use SFP in SFP+ ports in many cases, that doesn’t mean a SFP+ plugged into the SFP+ slot can support 1G. In a fiber link, if we plug a SFP in the SFP+ port on one side (1G), and then plug a SFP+ in the SFP+ port on the another side (10G), this may not work! You just can’t have 10 GbE at one end and 1 GbE at the other. For this question, if you use SFP+ copper, it also can’t negotiate down to 1G. When use SFP and SFP+ modules in your network, make sure the speed of both ends of the fiber link is the same. SFP modules may can be used in SFP+ slot, but a SFP can never be connected to a SFP+ module. For their different speeds, transmission distance and wavelength. 10 SFP+ only can use for 10G SFP+ port, and can never auto-negotiate to 1G. Related Article: Can I Use the QSFP+ Optics on QSFP28 Port? Related Article: SFP Module: What’s It and How to Choose It? Related Article: Understanding Video SFP Transceivers This entry was posted in Fiber Optic Transceivers, SFP Transceiver, SFP+ Transceiver and tagged 10G, 1G, SFP and SFP+ compatibility, SFP module in SFP+ slot, SFP port, SFP+ copper twinax cable on September 21, 2016 by Alice.Gui. WHAT IS THE DIFFERENCE: SFP VS SFP+ FacebookTwitterLinkedInRedditTumblr As we know, a SFP module just looks the same as the SFP+ module. And most switches can both support SFP module and SFP+ module. So, do these two modules really refer to the same one? What’s the difference between SFP vs SFP+? SFP vs SFP+: SFP Definition SFP stands for Small Form-factor Pluggable. It is a hot-pluggable transceiver that plugs into the SFP port of a network switch and supports SONET, Gigabit Ethernet, Fibre Channel, and other communications standards. SFP specifications are based on IEEE802.3 and SFF-8472. They are capable of supporting speeds up to 4.25 Gbps. Due to its smaller size, SFP replaces the formerly common gigabit interface converter (GBIC). Therefore SFP is also called Mini-GBIC. By choosing different SFP module, the same electrical port on the switch can connect to different fiber types (multimode or single-mode) and different wavelengths. SFP vs SFP+: SFP+ Definition Since SFP supports only up to 4.25 Gbps, SFP+ that supports data rates up to 16 Gbps was later introduced. In fact, SFP+ is an enhanced version of the SFP. The SFP+ specifications are based on SFF-8431. In today’s most applications, SFP+ module usually supports 8 Gbit/s Fibre Channel, 10 Gigabit Ethernet and Optical Transport Network standard OTU2. In comparison to earlier 10 Gigabit Ethernet XENPAK or XFP modules, SFP+ module is smaller and becomes the most popular 10 Gigabit Ethernet module in the market. SFP vs SFP+ Review the SFP and SFP+ definition mentioned above, we can know that the main difference between SFP and SFP+ is the data rate. And due to different data rate, the applications and transmission distance is also different. Ethernet Application SFP (1Gbps) SFP+ (10Gbps) 1000BASE-SX SFP 850nm 550m 1000BASE-LX/LH SFP 1310nm 20km 1000BASE-EX SFP 1310nm 40km 1000BASE-ZX SFP 1550nm 80km 10GBASE-SR SFP+ 850nm 300m 10GBASE-LRM SFP+ 1310nm 220m 10GBASE-LR SFP+ 1310nm 10km 10GBASE-ER SFP+ 1550nm 40km 10GBASE-ZR SFP+ 1550nm 100km Fiber Channel Application SFP (2G, 4G) SFP+ (8G) 2.125Gbps: 2G Fibre Channel SFP 1310nm 2km/15km/20km/40km 2G Fibre Channel SFP 1510nm 80km 4.25Gbps: 4G Fibre Channel SFP 850nm 150m 4G Fibre Channel SFP 1310nm 5km/10km/15km/20km 8.5Gbps: 8G Fibre Channel SFP+ 850nm 150m 8G Fibre Channel SFP+ 1310mn 10km/20km/40km 8G Fibre Channel SFP+ 1510nm 80km SONET/SDH Application SFP (155Mbps, 622Mbps, 2.5Gbps) SFP+ (10G) 155Mbps: OC-3/STM-1 1310nm 2km/15km/40km OC-3/STM-1 1510nm 80km 622Mbps: OC-12/STM-4 1310nm 500m/2km/15km/40km OC-12/STM-4 1510nm 80km 2.5Gbps: OC-48/STM-16 1310nm 2km/15km/40km OC-48/STM-16 1510nm 80km OC-192/STM-64 850nm 300m OC-192/STM-64 1310nm 2km/10km/20km/40km OC-192/STM-64 1510nm 80km As we’ve explained the difference of SFP vs SFP+. Usually, SFP module plugs into SFP port of the switch and SFP+ module plugs into SFP+ port of the switch. But, sometimes SFP module can also be plugged into SFP+ port. Which SFP or SFP+ module should you choose all depends on your switch types. Fiberstore is a reliable SFP transceiver module manufactures, all SFP module and SFP+ module types are available in FS.COM. Besides, SFP+ cable is also provided. What’s more, the price of SFP module and SFP+ module is lower than many other manufactures. SFP test is strict in FS.COM. Matching fiber patch cable is also available. Related Article: Compatible SFPs for Ubiquiti EdgeSwitch and UniFi switch Related Article: SFP Module: What’s It and How to Choose It? Related Article: Understanding Video SFP Transceivers This entry was posted in Fiber Optic Transceivers, SFP Transceiver, SFP+ Transceiver and tagged SFP definition, SFP module types, SFP port, SFP vs SFP+, SFP+ cable, SFP+ module in SFP port on September 6, 2016 by Alice.Gui. Search for: RECENT POSTS * Navigating Cloud Integration and DCI in the Era of Cloud and Intelligence * Coherent Optics Dominate Data Center Interconnects * Deploying Fiber Optic DCI Networks: A Comprehensive Guide * Everything You Should Know About Bare Metal Switch * What is MPLS (Multiprotocol Label Switching)? 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