QSFP28 Transceiver: Making the Switch to 100G Network

As data centers around the world explore their options for increasing network speeds and bandwidth, 10G has been a traditional favorite, and 40G is not able to keep pace with the requirements. In this case, 100G network appears to be a preferable option to accelerate data flow for those bandwidth-hungry applications. QSFP28 transceiver module hence becomes the universal data center form factor for 100G optical transmission. This article will address the necessity of 100G network, while illustrating QSFP28 transceiver modules used in 100G transmission.

100G: The Optical Revolution in Data Centers

Changes to transmission speeds and expansion in data center capacities have driven the 100 Gigabit Ethernet. IHS Infonetics reports that by 2019, 100G Ethernet will make up more than 50 percent of data center optical transceiver transmissions. For 100G transceiver, there are 100GBASE-SR4, SR10 and PSM4 for short-distance transmission and 100GBASE-CWDM4, LR4 and ER4 for long-distance transmission.


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.

100G QSFP28 Transceiver Unravel
QSFP28 transceiver generally has the exact same footprint and faceplate density as 40G QSFP+ . Just as the 40G QSFP+ is implemented using four 10Gbps lanes, the 100G QSFP28 transceiver is implemented with four 25-Gbps lanes. With an upgrade electrical interface, QSFP28 transceiver is capable of supporting signal up to 28Gbps. Though QSFP28 transceiver keeps all of the physical dimensions of its predecessors, it surpasses them with the strong ability to increase density, decrease power consumption, and decrease price per bit. The Following are some QSFP28 transceivers for different applications.

QSFP28 100GBASE-SR4
100G QSFP28-SR4 came out firstly to support short distance transmission via multimode fiber.This transceiver module can support 100G transmission up to 70m on OM3 MMF and 100m on OM4 MMF. With MTP interface, the 100G QSFP28-SR4 module enables 4×25G dual way transmission over 8 fibers.

QSFP28 100GBASE-LR4
100G QSFP28-LR4 is specifically designed for long distance transmission. The four optical signals from the four wavelengths are multiplexed and coupled to SMF through an industry-standard LC connector, and on the receive side, the demultiplexer splits the four wavelengths apart. The 100G QSFP28-LR4 module enables 100G dual-way transmission up to 10km over single-mode fiber.

QSFP28 100GBASE-PSM4
PSM4 uses four parallel fibers (lanes) operating in each direction, with each lane carrying a 25G optical transmission. It sends the signal down to eight-fiber cable with an MTP interface. The operating distance of 100G QSFP28-PSM4 is limited to 500 m.

QSFP28 100GBASE-DWDM4
DWDM4 uses WDM technology—an optical multiplexer and de-multiplexer to reduce the number of fibers to 2. It can operate on single-mode fiber up to 2 km over duplex LC interface. Compared with QSFP28-LR4, it has shorter transmission distance and lower cost.

100G QSFP28 Cables

QSFP28 Cables (100G Ethernet QSFP Cables) is with a revolutionary line of 100-Gigabit Ethernet optimized QSFP28 Copper Cable Assemblies. QSFP28 Cables offering a flat frequency response beyond 20 GHz. QSFP28 connectors add an extended EMI cage and upgraded PCB to meet strict new 100-Gigabit Ethernet specifications.


Conclusion
100G QSFP28 transceiver offers direct compatibility with your existing switches and routers, and it facilitates the process of scaling to 100G networks with the simplicity as 10G networks.

For more details about our 100GB QSFP28 and 100GB CFP/CFP2/CFP4 transceiver modules,from 100M MMF to SMF 10KM, 40KM, please visit our site www.opticalmodulemanufacturers.com.

LITO-T3 Stereo Wireless Bluetooth Headphone

Product Name: LITO T3 Wireless Bluetooth Heaphones With Microphone

Bluetooth Version: V4.1
Working Distance: Up to 10M
Impedance: 32Ω ±15%
Driver: Ф40mm
Frequency: 2.4GHz-2.4835GHz
Standby time: Up to 100 hours
Color: Black





LITO-T3 Headphone is Wireless design, we can start enjoying music when we just hang on your head, no need for annoying management and cable insertion.


Using the ISSC chip, which can control the power and improve the energy efficiency of the battery.And built-in battery for up to 15 hours of battery life.


The 40mm drive unit has been carefully designed in the fuselage, and technical optimization has been carried out in many aspects, so that the earphone can make a more moving, delicate and natural sound.




As a headphone, its sound quality is also excellent.
The clarity of the sound, the breadth of the range, and the balance of the high and medium bass have all been adjusted.Bring it and enjoy the good mood that music brings to you.




Function buttons are also hidden on the left earmuffs.
The middle button is a button that controls playback/pause, and the buttons that control the volume increase and decrease directly above and below,left and right.


In this way, there is no need to pick up the phone at all, and pressing a button on the left earmuff can solve most of the operations.




Now Black Color is Available. more detail, visit litoscreen.com

Super Mini Only 17 Grams Wireless Bluetooth Earphone

Although the wireless Bluetooth earphone has got rid of the shackles of cables, it really is not so easy to use it.
Head-mounted Headphone is too big, and inconvenient to carry; earplug-style earphone is easy to carry, can be used in the ear, but easy to get lose.

Here is a inner Wireless Bluetooth earphones that are easy to carry and not easy to lose, called LITO-S8.
It uses a neck-mounted + in-ear style, with a net weight of only 17 grams
Comes with Stay-hear+ shark fin silicone earplugs.

The earplug has a hollow shark fin structure that naturally conforms to the shape of the upper ridge of the ear, and can be inserted into the ear without force.
The earplugs are made of soft silicone and feel comfortable when worn.
Even if you run and jump a lot in motion, as long as you are in place, the headphones will be firmly embedded in your ears.
When you are not exercising, it is also very fashionable to wear it out of the street.

The tri-band of the headphones is very balanced, the bass is not boring, the middle and high-pitched performances are very clear and full, and it is suitable for listening to popular music.
The Bluetooth connection is about 9 to 10 meters, and you can receive music consistently whether your phone is in your hand, in your bag, or on a treadmill in the gym.

Wired control buttons on the headphones, music playback, volume control, and answering calls can be done.


The headphone cord is also a comfortable silicone material that is comfortable to hang around the neck.


The sounding port in the ear section is waterproof and resistant to sweat and light rain during exercise.

Available in black, gray, blue and red colors.