SFP

You Professional SFP Manufacturers

Shenzhen Xianquan Technology Co.,Ltd is the Branch of Shenzhen Yifanxing Technology, it since establish in 2022, the mainly products included fiber optical onu, fiber optical patch cord, fiber optical cable, fiber optical pigtail, fiber optical tool kits and fiber optical fast connector, etc.

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Cisco 10G SFP Module
The Cisco 10G SFP Module is a cost-saving 10G connection solution. The 10G optical port to electrical port module is also called the 10G SFP+ electrical port module. This module is specially...
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SFP Optical Transceiver
The SFP port is an interface that realizes Gigabit optical and electrical signal conversion. Its main function is for signal conversion and data transmission. Its port complies with the IEEE...
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Gigabit SFP Modules
The full name of SFP optical module is Small Form-factor Pluggsable, that is: small hot-swappable optical transceiver integrated module. The volume of Gigabit SFP Modules is reduced by half...
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Fiber SFP Transceiver
The SFP optical module is a hot-swappable small package module in SFP package. The maximum rate can reach 10.3G and the interface is LC. SFP optical modules are mainly composed of lasers. SFP...
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Ethernet SFP Module
Cisco Ethernet SFP Module are composed of optoelectronic devices, functional circuits and optical interfaces. Optoelectronic devices include transmitting and receiving parts. Optical modules are...
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Single Mode Fiber Sfp
The SFP optical module is a hot-swappable small package module in SFP package. The current high speed can reach 10.3G and the interface is LC. SFP optical modules are mainly composed of lasers.
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Multi Mode Fiber SFP
Almost all multimode fiber sizes are 50/125um or 62.5/125um, and the bandwidth (the amount of information transmitted by the fiber) is usually 200MHz to 2GHz. Multimode optical transceivers can...
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Advantages of SFP

Support hot-swappable
SFP optical module using the gold finger pin definition, so that the module works with different functional feet of the power up the sequence of different, to ensure that the SFP module in the case of the socket with power can be hot swappable use, to facilitate the maintenance of the system disk.

With digital diagnostic function (DDM)
Can be some of the relevant working parameters of the module for real-time monitoring and reporting, to monitor its working status.

Low cost
Optical transceiver module not only saves raw materials, but also saves working hours compared with the previous separated optical receiving and transmitting modules. Therefore, the optical transceiver module is the best solution to realize low-cost bidirectional transmission and optical interconnection.

Miniaturization
SFP module size is not only smaller than a single optical transmitter module or optical receiver module, and because it uses the LC-type package of coaxial optical devices, its size is smaller than other packaging forms of optical transceiver module is even smaller, the installation of the system on the disk can also be more dense. In the component using integrated circuits to complete the transmitter module APC (power compensation), ATC (temperature compensation), drive, slow start protection and other functions as well as the receiver module of the pre-amplification, limiting amplification, signal alarms and other functions.

High reliability
IC and isolation are used in the component to ensure the reliability of the circuit. At the same time, the coaxial package of To tube shell is adopted to ensure the service life of the photoelectric device core. In the production process, the laser welding process is used to improve the reliability. The transmitter and receiver parts inside the module are completely independent, reducing the crosstalk between the two, making the module itself less interference and better performance.

Application of SFP

Different from the traditional telecommunication access network transmission equipment, the data center interconnection requires higher speed, lower power consumption, and smaller size of the switching equipment in order to realize larger and denser transmission of information. The SFP optical transceiver is a core factor that determines whether these performances can be achieved. The information network mainly uses optical fiber as the transmission medium, but the current calculation and analysis must be based on electrical signals, and the SFP optical transceiver is the core device for realizing photoelectric conversion.

The Three Applications of SFP Optical Transceivers

From the data center to the user, it is generated by end-user behaviors such as accessing the cloud to browse web pages, send and receive emails, and stream video;
Data center interconnection, mainly used for data replication, software and system upgrade;
Inside the data center, it is mainly used for information storage, generation and mining.

Media Type of SFP

Within the fiber SFP category, there are two distinct types—single-mode SFPs, which are compatible with single-mode fibers, and multimode SFPs, which are suited for multimode fibers. These classifications correspond with the specific fiber patch cables they interface with.

Specfication	Multimode SFP	Single-mode SFP
Fiber Type	62.5/125µm or 50/125µm core MMF	9/125µm core SMF
Working Wavelength	Mainly in 850 nm and 1300 nm	Mainly in 1310 nm and 1550 nm
Color Coding	Black	Blue for 1310nm SFP Yellow for 1550nm SFP
Transmission Distance	100m / 550m	2km up to 200km

Components of SFP

SFP modules consist of: Laser: Including transmitter TOSA and receiver ROSA ,circuit board IC, and the external parts include: shell, base, PCBA, pull ring, clasp, unlocking piece, rubber plug.
In addition, for the convenience of identification, the color of the ring is generally used to identify the module's parameter types. For example, the black pull ring is multimode, the wavelength is 850 nm; the blue is the module with the wavelength of 1310 nm; the yellow is the module with the wavelength of 1550 nm; the purple is the module with the wavelength of 1490 nm.

Interface indicators of the SFP module
1. Output optical power refers to the output optical power of the light source at the transmitting end of the module.
2. Received optical power refers to the received optical power at the receiving end of the module.
3. Receive sensitivity refers to the minimum received optical power of SFP module at a certain rate and bit error rate. Under normal conditions, the higher the rate, the worse the receiving sensitivity.The larger the minimum received optical power, the higher the requirement for the receiving device of the optical module.
4. Saturated optical power, also known as light saturation, refers to the maximum input optical power at a certain transmission rate while maintaining a certain bit error rate (10-10~10-12).

Installation Requirements of SFP

SFP, SFP +, SFP28, QSFP, and QSFP28, are hot-pluggable modules. Their installation can follow the following instructions.
Keep the ESD wrist strap on your wrist all the time, or keep the grounding equipment connected all the time. In addition, if there is a metal surface on your chassis, it is also OK.
When the optical module is not inserted, do not remove the dust cover in the port.
TX/RX ports should be clearly marked on different cables, it will help you to identify different ports, which is convenient for the subsequent management and other workers to repair or upgrade.
Slide the transceiver module to the port carefully.
After cleaning the end-face of the optical fiber, you can remove the dust cover and insert the network interface cable.
Confirm the transceiver module inserted into the port securely.
After all the operations, the port status LED should be green, which means you have established an optical fiber link. If the port status LED is still off, ensure that the connected device is powered on before troubleshooting.

How to Select an SFP Transceiver

Deploying SFP links on your network goes far beyond inserting a single fiber transceiver into the Ethernet switch port. To optimize network performance, you'll need to specify the right single-mode fiber transceiver type for your industrial switch application. Although there are many types of SFP modules on the market, the list can be narrowed down to five form factors: SFP, SFP+, SFP28, QSFP+, and QSFP28.

Operating Temperature
In a production environment, you'll need a rugged transceiver with an industrial-grade temperature range of -40 to 185°F (-40 to 85°C), not a commercial-grade one with a more limited range of 32 to 158°F (0 to 70°C). If not, the transceiver may fail in extreme heat or cold, taking the signal and network connection with it.

Cable Types
Match the transceiver to the two-mode fiber or cable you are planning to use, whether the fiber, copper cable, multimode fiber (MMF) or single, multi-mode fiber (SMF).

Port Speed
This should be obvious but bears repeating. Always match the transmission speed of the transceiver to the port-supported speed. Transceiver speeds range from 100 Mbps (SFP) all the way to 112 Gbps (QSFP28).

Link Distance
Choose a transceiver that supports the distance between the switch and the interface of the device you want the switch to connect.

Compatibility
Some manufacturers participate in “vendor lock-in” practices that intentionally prevent third-party SFP transceiver modules from working in their devices. Multi-Source Agreement (MSA) standards have helped to create an open market for SFP transceiver modules.

FAQ

Q: Who makes SFP?

A: Xianquan Technology in the fiber optic cable industry, renowned for its innovative approach to manufacturing and sustainable solutions.the mainly products included fiber optical onu, fiber optical patch cord, fiber optical cable, fiber optical pigtail, fiber optical tool kits and fiber optical fast connector, etc.

Q: What is SFP in manufacturing?

A: Small Form-factor Pluggable (SFP) is a compact, hot-pluggable network interface module format used for both telecommunication and data communications applications.

Q: How many types of SFP are there?

A: SFP modules can operate over both optical fiber and Ethernet cables, leading to the two main types: fiber SFP and copper SFP. Copper SFP: These use copper cables for data transmission and are typically used for short-range connections. Fiber SFP: These use fiber optic cables for data transmission.

Q: What is the application of SFP?

A: QSFP+ is a type of fibre optical transceiver. It is used to convert electrical signals from a network device into an optical signal via a laser or diode, which is then transmitted through a fibre optic cable.

Q: How to identify SFP?

A: Typically, single mode SFP modules are labeled as "SM" or "single mode," while multimode modules may be labeled as "MM" or "multimode." Additionally, single mode modules often have yellow-colored connectors, while multimode modules may have orange or aqua-colored connectors.

Q: What is the speed of SFP?

A: What speed does your network require? SFP data transfer rates can range between 10 Mbps to 1000 Mbps (1 Gbps). For a more powerful data transmission and faster gigabit ethernet, SFP+ transceivers can provide up to 10 Gbps rates and for optimal speeds, QSFP/QSFP+ can reach up to 40 Gbps.

Q: Why is SFP used?

A: An SFP module, or transceiver, acts as a converter between the network switch and a fiber optic or Ethernet cable. For example, it converts electrical signals to optical signals for fiber optic cabling, and vice versa. SFP modules can also work with RJ45 connectors to support copper Ethernet cables.

Q: How to select SFP module?

A: Consider bandwidth requirements and distance limitations
The decision to select a specific rate SFP depends on the bandwidth requirements of the network. Additionally, the distance limitations of the SFP module should be considered. The SFP module has a maximum distance limit, beyond which the signal will drop.

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