Category: Fiber Transceivers

Optical transceivers, Active Optic Cables, data center switches, and cable management in data centers.

What are the advantages of the 100G XFP module?

The 100G XFP transceiver adoption rate in optical landscape is consistently on the rise for the past few years. It is predicted that over half of the data center optical transceiver transmission will make the shift to 100G. The traditional 10G or even 40G may not be enough considering the explosion of data, therefore, 100G is going to become the new standard, and it has the following advantages.
※ Cost Efficiency
100G now delivers a compelling price point, offering far greater capacity increases for the cost. And it still future-proofing the network with unsurpassed bandwidth.
※ Proactive Scale
100G offers the expansion and scalability to support the reliability, manageability and flexibility demanded of modern networks while preparing data centers for future bandwidth and speed requirements.
※ Speed and Capacity
100G optical transport will not be enough for data intensive industries. Thus 100G is specifically designed to transport enormous amounts of data with ultra-low latency.
※ Flexibility
100G will be the preferred technology across long-haul networks. 100G networking can be customized, optimized, and easily expanded to allow for changes in the future.
※ Cost Decrease
The market transition to 100GE is now in full force. The growth in 100G deployments will undoubtedly drive down the cost of 100G transceiver modules.

The importance of switches in optical module testing

With the increasingly fierce competition in the optical communication market, the price of the optical module is irregular, such as Cisco, HUAWEI, H3C, Juniper, ZTE, Extreme etc. The price of these big brand module is very high, the market capacity of third party compatible module is increasing continuously.
Used optical transceiver also appears on the market, so the customers will be prohibitive because of the high price for the big brand. But worry about the used goods will bring unnecessary trouble to the communication if low price, so these days whether it is online or offline customers, they asked a lot of similar questions: “ Must be high quality! Can guarantee compatible with Cisco?
Market demand for prices continue to decline, but the quality control has been unable to reduce the standard, but can’t reduce the standard of the quality control, this is also a great opportunity for our third party compatible module. In order to eliminate customer concerns and give end customers more quality assurance, let’s see how to guarantee the compatibility of the optical transceiver?
In fact, the compatibility of optical modules means that whether modules can be used on a certain brand of switches. To verify their compatibility, switches play an important role in testing.
Different compatibility needs to be tested through different brands of switches, for example:
SFP+ LR — 10G SFP+ 1310nm MM 10KM LC DDM Cisco compatible, the optical module needs to be tested on the CISCO switch.
Our products will be strictly compatibility and other tests, you don’t need to worry about the quality.
Hope these sharing will be helpful for you! Fighting together!

Do you know about PON optical transceiver

The PON optical transceiver is a high performance optical module for the PON system, also known as the PON module, conforms to the ITU-T G.984.2 standard and the MSA. It uses different wavelengths to send and receive signals between the OLT (optical line terminal) and the ONT (optical network terminal).
Classification of PON optical modules:
1. According to the package type: SFF/SFP/SFP+ and XFP optical modules
2. According to plug-in devices: OLT optical module and ONU optical module
3. According to technical standards: GPON (Gigabit passive optical network) optical module and EPON (Ethernet passive optical network) optical module
The features of PON optical module
The transmission protocol of PON optical module are APON (ATM PON), BPON (broadband passive optical network), EPON and GPON, and now widely used are EPON and GPON;
The operating temperature is 0°C-70°C or -20°C-70°C;
1310/1490 burst mode transmitter and continuous mode receiver(ONU)
1490/1310 continuous mode transmitter and burst mode receiver(OLT);
Transmission distance up to 10km or 20km;
The interface type is duplex SC or SC/APC;
Can avoid the electromagnetic interference and lightning influence of the external equipment;
Reduce line and external equipment failure rate, improve system reliability, while reducing maintenance costs.

Optical transceiver VS media converter

In the optical communications field, many devices have similar functions, such as optical transceivers and media converter, they are the equipment for photoelectric conversion. Do you know their differences?Let’s learn about this.
What is media converter?
Optical media converter is a medium for converting short distance electrical signals and long distance optical signals. It is also called photoelectric converter in many places and is generally used in long distance transmission. Optical transceiver is a cost-effective solution, it does not require a lot of manpower, material resources and time to complete the network upgrade.
The optical module consists of optoelectronic devices, functional circuits and optical interfaces, optoelectronic devices include transmitting and receiving. Simply speaking, the function of an optical module is photoelectric conversion. The transmitter converts an electrical signal into an optical signal and the receiving end converts the optical signal into an electrical signal after transmitting through an optical fiber. The principle is the same as the media converter, but it is more efficient and safer than the media converter.
According to the definition of optical module, as long as there is optical signal, there will be the application of optical module.
How can the optical module be used in conjunction with the media converter?
The wavelength and transmission distance must be the same, for example, using 1310nm wavelength, the transmission distance should be 10KM/20KM.
Optical fiber pigtail interface selection should be paid attention, used in generally media converter uses SC port, optical module uses LC port.
The data rate must be the same, Gigabit media converter corresponding to 1.25G optical module, megabit connect megabit, gigabit connect gigabit.
The optical module types must be the same.

The types and standards of 100G optical module

With the growing demands for bandwidth that makes 100G network developed rapidly. 100G optical module is to be an important part of 100G network, and now many standards and form factors has been emerged on the market. Here we will introduce the related knowledge about 100G optical module in detail.
The types and standards of 100G optical module
According to different form factor, 100G optical module can mainly be divided into CFP／CFP2／CFP4、CXP and QSFP28. Among them, CFP／CFP2／CFP4 and CXP is the early form factor of 100G optical module, but QSFP28 is the new-generation form factor of 100G optical module, which is become the mainstream form factor of 100G optical module now. The principle of 100G QSFP28 optical module is similar to 40G QSFP+’s which adopts the way of 4 x 25 Gbps to transmit 100G optical signal.
CXP optical module
The transmission rate of CXP optical module can reach 12 x 10Gbps, supports hot-pluggable, is the supplement of CFP optical module in the Ethernet data center. The size of CXP is larger than XFP and CFP optical module, and it can provide high-density network interface. CXP is mainly designed for high-speed computer application.
The volume of CFP series optical module is getting smaller, the width of the CFP4 optical module is half of the CFP2’s, and the width of the CFP2 optical module is half of the CFP’s, they all can meet the needs of 40G and 100G network transmission that support 100Gbps data transmission, but CFP4 is more suitable for high-density network application.
QSFP28 optical module
As a 100G optical module with small size, QSFP28 optical module has also been more and more popular. Compared with CFP4 optical module, QSFP28 is only smaller than CFP4. Although QSFP28 has a better performance on density than CFP4’s, the higher power consumption of the CFP4 optical module gives it an advantage over longer distances of optical transmission.
The standards of 100G optical module
Since the advent of the 100G network, IEEE, Multi-Source Agreement (MSA) etc. had proposed multiple standards that designed to 100G optical module. Among these standards, PSM4 and CWDM4 standard which made by MSA industry organization is more suitable for 100G QSFP28 optical module on the market. The following table shows the details of 100G optical module standard.
The release of 100G PSM4 standard is mainly used to decrease the cost of 100GBASE-LR4 optical module, 100G PSM4 is the single-mode parallel 4-channels optical module, which is mainly applied to 500m application situation in the data center. 100G CWDM4 standard is mainly for 2km 100G link deployment and development in the data center. The interface of 100G CWDM4 optical module complied with the standard of duplex single mode fiber 2km 100G interface which transmission distance up to of 2km.

What are the types of 10G SFP+ optical modules?

As everyone knows, SFP+ optical module for its small volume, low cost and high density advantages and is widely used in 10G Ethernet, in next generation mobile network, fixed access network, metropolitan area network, and data center and other fields are particularly common. So what are the types of 10G SFP+ optical modules?
Type of 10G SFP+ optical module
1, 10G, SFP+, SR optical module
10GBase-SR is one of the 10G SFP+ SR Ethernet standard, accord with the standard of the optical module, and the optical module type SR is in short distance (Short Range), meaning, which means that the transmission distance up to 300m and use it with multimode fiber. In addition, the wavelength of 10G SFP+ SR optical module is 850nm, which has the advantages of low cost, low power consumption, small size and high density.
2, 10G, SFP+, LRM optical module
The 10G SFP+ LRM optical module conforms to the 10GBase-LRM Ethernet specification, where LRM refers to the extended Multimode Reach (Long). 10G SFP+ LRM optical module can be used with OM1, OM2, OM3 multi-mode fiber, and is mainly used for FDDI networks and 10G data communications, and its low power consumption and excellent EMI can also fully meet the MSA SFF-8431 standard. In addition, the upgraded version of 10G SFP+ LRM optical module is SFP-10G-LRM2 optical module, the upgraded optical module transmission distance of up to 2km, commonly used in LAN connections.
3, 10G, SFP+, LR optical module
10G SFP+ LR optical module with 10GBase-LR Ethernet standard, LR which refers to the long distance (Long, Range) at the wavelength of 1310nm single-mode fiber on the transmission distance of the maximum is 10km, in fact up to 25km, also has the advantages of miniaturization, low power consumption and long transmission distance.
4, 10G, SFP+, ER optical module
10G SFP+ ER optical module with 10GBase-ER Ethernet standard, which is the long distance ER (Extended Range) meaning, its wavelength is 1550nm, and when used with single-mode fiber transmission distance up to 40km, is a very high cost of the ultra long distance optical module, is favored by the data center and enterprise park.
5, 10G, SFP+, ZR optical module
The 10G SFP+ ZR optical module conforms to the 10GBase-ZR Ethernet specification, but this specification belongs to CISCO proprietary. 10G SFP+ ZR optical module type ZR refers to the longest distance (Ze best Range), thus the transmission distance of optical module is very far, the transmission distance up to 80km and single-mode fiber when used together, so the light module is widely used.
6, 10G, SFP+, BIDI optical module
BIDI optical module is a single fiber bidirectional optical module, the optical module has SFP and SFP+ two package, the main difference is that the rate of BIDI SFP+ optical module is 10G, the rate of BIDI SFP optical module is fast or gigabit. BIDI SFP+ optical module using WDM technology, and there are two fiber jack, need to be used in pairs can guarantee the normal operation, but the benefits of this optical module can reduce the usage of optical fiber network deployment, thus greatly reduce the cost of network deployment.
7, 10G, SFP+, CWDM optical module
The 10G SFP+ CWDM optical module is a coarse wavelength division multiplexed optical module that is usually used in conjunction with single-mode fibers. This light module adopts CWDM technology to save fiber resources, can significantly enhance the flexibility, economy and reliability, and the power consumption of optical module is very small, the 10G SFP+ DWDM optical module 12.5%.
8, 10G, SFP+, DWDM optical module
10G SFP+ DWDM optical module is a high rate, the domestic rare large capacity DWDM optical module, usually with single-mode fiber, transmission distance up to 80km, suitable for long distance data transmission. This optical module can satisfy large capacity and long distance transmission requirements, provides a stable guarantee for multi service operation and future network upgrading, also supports a variety of networking mode, each node can be made between wavelength scheduling, has the capacity of easy expansion, flexible service access, high bandwidth utilization and high reliability etc. a variety of advantages.
9, 10G glc-t
10G port module is a package for the SFP+ photoelectric conversion module, the interface type is RJ45, and usually use super six or seven jumper network together, this optical module, the disadvantage is not to support the DOM function, and the transmission distance is 30m, because the application is not wide enough.