RJ45, RJ48 connection standards

RJ45 connection standard

RJ45 (Registered Jack) is a ethernet interface, it was created by the Bell System under a 1976 Federal Communications Commission, RJ45 plug standard is used for connecting the terminal equipments as telecommunication equipments or computers to transfer data, voice, video... through layer2 or layer3 protocol.

How to turn off IE 10 on windows 8

windows features

Sometime user wants to turn off internet explorer 10 (IE 10) on computer due to the different reasons or purposes. to do it, we carry out step by step as below:

How to use memory cleaner

memory interface

For computers that have small RAM capacity as 2Gbyte, 4Gbyte. After you install a lot of application softwares, the equipment will operate more slowly acording to affect your work, so the use of memory optimized software will help computer to run more faster

Difference between MCCB and MCB


MCCB (Molded Case Circuit Breaker) and MCB (Miniature Circuit Breaker), they used in industry, families to connect or disconnect power systems (one phase AC power, three phase AC power)to avoid short circuit, overload, and they called with common name is CB (circuit breaker). Depending on different usage purposes, MCCB or MCB will be chosen, actually MCCB is usually used for industrial equipments and MCB used in family.

Some popular optical fiber connectors (SC, FC, LC, ST)

optical fiber connector

Optical fiber connectors are used to join the end of optical fibers, it has been used widely in telecommunication to connect the devices to each other through optical fiber patch cord, or optical fiber cable in a building, data center, customer, between service provider with customer...

Understanding the Gagabit Passive Optical Network (GPON)

GPON diagram

Gigabit Passive Optical Network (GPON) was gave out by ITU-T in the Recommendation G.984. It used to connect the optical cable from customer to provider through point to multipoint connection type.

With high transmission speed, it allows providing reliability services as video, high speed internet, video conference and other broadband services.

GPON has some main elements as Optical Line Terminal (OLT), Splitters, Optical Network Unit (ONU)/Optical Network Terminal (ONT).

Nitro Pro 10 software overview

Nitro pro 10 software

With office staffs, students... the Nitro Pro 10 software is one of the useful softwares to read, create, modify the PDF file. On the other hand, it's also equiped many other functions as convert the pdf file to image file, word and excel file...to understand more deeply about the functions of this software, we would like to introduce some the esential features of its as below:

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