News

2021

May-Tue

400GBASE QSFP-DD optic transceiver modules

400GBASE QSFP-DD Optical 400G QSFP-DD series is a hot pluggable optical transceiver module, which meets the QSFP-DD MSA standard. It is mainly used in 400G Ethernet of data center, adopts 50G pam4 modulation, and supports 2km transmission at most. Products list P/N Description Data Rate Reach ...

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2021

May-Tue

ROLLBALL 1.25g optical modules upto 160km

ROLLBALL Provides the 1.25g SFP optical modules support a maximum speed of 1.25gbps, adopts FP or DBF laser, and can be compatible with multiple brands of switches, with commercial and industrial grade options.   Product picture   Product features 1. Standard SFP package, LC or SC interface optio...

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2021

May-Mon

Development of optical fiber attenuator

Optical fiber attenuator is one of the earliest passive components in optical communication. As early as the mid-1970s, some countries with high level of optical communication began to develop this device. In the 1980s, many countries invested considerable manpower and physics in the research and...

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2020

Nov-Mon

ROLLBALL’S Doulbe-density 400G QSFP-DD DAC Cables

 ROLLBALL’S NEW-DESIGN High -density 400G QSFP-DD DAC Cables Data center, enterprise and high-performance computing environment need flexible and clear 50g, 100g, 200g and 400g cables for interconnection between in rack and adjacent rack. With the development of 400g technology, 400g direct...

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2019

Dec-Wed

The difference between SFP+ and SFP28 Transceiver

With the introduction of new technologies and economic drivers, many companies’ data center landscapes are moving toward higher speeds, higher scalability and higher performance levels. As we all know, a broader technology shift requires more networks. bandwidth. Therefore, more and more organiza...

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2019

Dec-Wed

What Makes 25G SFP28 Different?

Driven by the increasing demand for bandwidth requirement, the 25G Gigabit Ethernet or 25GBASE-T standard has been released in recent years. Then 25G SFP28 assemblies like SFP28 transceiver and SFP28 DAC & AOC, come into being. Though the SFP28 assemblies have been used in a wide variety of h...

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2019

Dec-Wed

5G will increase energy demands of data centers

Newly introduced 5G mobile communications will drastically increase the energy demands of data centers. The report from RWTH Aachen University, found that by 2025, high-bandwidth 5G networking would drive such a boost in demand for data that the energy consumed by German data centers would increa...

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2019

Nov-Wed

5th Generation Mobile Networks–5G Arrives

5th generation mobile networks or 5th generation wireless systems (5G) is the latest generation of cellular mobile communication technology and is an extension of 4G (LTE-A, WiMAX-A) systems. 5G’s performance goals are high data rates, reduced latency, energy savings, reduced costs, increas...

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2019

Oct-Mon

What are the Main parameters of the optical transceiver modules?

Main parameters of the optical modules 1. Transmission rate The transmission rate refers to the number of bits transmitted per second in units of Mb/s or Gb/s. Main rates: 100M, Gigabit, 2.5G, 4.25G and 10G, 25G, 40G, 56G, 100G, 120G, etc. Therefore, based on different data rate, our optical tran...

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2019

Sep-Thu

How to choose the PLC splitter correctly?

    PLC splitter is a simple passive component which plays an important role in the applications of technologies like GPON, EPON and BPON. It allows a strand of fiber optic signal being equivalently splitted into several strands of optical signal, which can support a single network interfac...

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2019

Sep-Thu

What is the OADM Multiplexer?

The OADM, optical add drop multiplexer, is a gateway into and out of a single mode fiber. In practice, most signals pass through the device, but some would be “dropped” by splitting them from the line. Signals originating at that point can be “added” into the line and directed to another destinat...

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