Frequently Asked QuestionsWhat is the general difference between Category 5e and Category 6?
The general difference between Category 5e and Category 6 is in the transmission performance and extension of the available bandwidth from 100 MHz for Category 5e to 200 MHz for Category 6. This includes better insertion loss, near end crosstalk (NEXT), return loss, and equal level far end crosstalk (ELFEXT). These improvements provide a higher signal-to-noise ratio, allowing higher reliability for current applications and higher data rates for future applications.
Why do I need all the bandwidth of Category 6?
The trends of the past and the predictions for the future indicate that data rates have been doubling every 18 months. Current applications running at 1 Gb/s are really pushing the limits of Category 5e cabling. As streaming media applications such as
video and multimedia become commonplace, the demands for faster data rates will increase and bring new applications that will benefit from the higher bandwidth offered by Category 6. This is exactly what happened in the early 90's when the higher bandwidth of Category 5 cabling compared to Category 3 caused most LAN applications to choose the better media to allow simpler, cost effective, higher speed LAN applications, such as 100BASE-TX.Will Category 6 supersede Category 5e?
Yes, analyst predictions and independent polls indicate that 80 to 90 percent of all new installations will be cabled with Category 6.The fact that Category 6 link and channel requirements are backward compatible to Category 5e in their networks. Applications that worked over Category 5e will work over Category 6.
What does Category 6 do for my current network vs. Category 5e?
Because of its improved transmission performance and superior immunity from external noise, systems operating over Category 6 cabling will have fewer errors vs. Category 5e for current applications. This means fewer re -transmissions of lost or corrupted data packets under certain conditions, which translates into higher reliability for Category 6 networks compared to Category 5e networks.
Why should I install Category 6 vs. Category 5e?From a future proofing perspective, it is always better to install the best cabling available. This is because it is so difficult to replace cabling inside walls, in ducts under floors and other difficult places to access. The rationale is that cabling will last at least 10 years and will support at least four to five generations of equipment during that time. If future equipment running at much higher data rates requires better cabling, it will be very expensive to pull out Category 5e cabling at a later time to install Category 6 cabling. So why not do it for a premium of about 29 percent over Category 5e on an installed basis?
Are the connectors for Category 5e and Category 6 different? Why are they more expensive?
Although Category 6 and Category 5e connectors may look alike, Category 6 connectors have much better transmission performance. For example, at 100 MHz, NEXT of a Category 5e connector is 43 decibels (dB), while NEXT of a Category 6 connector is 54dB. This means that a Category 6 connector couples about 1 1/2 of the power that a Category 5e connector couples from one pair to another pair. Conversely, one can say that a Category 6 connector is 12 times less "noisy" compared to a Category 5e connector. This vast improvement in performance was achieved with new technology, new processes, better materials and significant R&D resources, leading to higher costs for manufacturers.
What is VoIP?
VoIP, or "Voice over Internet Protocol" refers to sending voice and fax phone calls over data networks, particularly the Internet. This technology offers cost savings by making more efficient use of the existing network.
What are the differences between Internet telephone and traditional POTS telephone?
Internet telephony follows an architecture that is obviously different from the POTS which provides a voice call only through the circuit switched network of the PSTN.
Internet Telephony utilizes "packet" technology, these packets are sent out through the Internet. Each packet is encoded with an address, and reaches its destination independently. The packets regroup at the destination point, and are converted back into regular voice over telephone lines. Internet telephony allows much more information to be sent over the Internet than over circuit-switched networks. A telephone voice channel requires a 64 Kbps connection, however an Internet telephone server uses 6.3 Kbps per voice channel in each direction, the same lines are "shared" by different data without the need to keep the line open throughout the call. This lowers costs and optimizes line usage for voice and data.How much money will I save if I switch to VoIP?
A VoIP network offers significant savings to most customers - up to 20%, 30%, or even 50%, depending on their traffic mix. The VoIP network allows the network provider to leverage their own network and peering relationships to bypass the local telephone operators/PTT toll charges in local country and provide our customers with low cost calling.
How do I connect to a specific VoIP products on the LAN or WAN?
A VoIP network device convert a dialed numbers into an IP address and transmits it over the IP network. Simply dial an extension and you are connected to specific intercom stations, handsets and paging speakers. You may also dial group numbers and/or all call paging zones.
Will VoIP products operate if the network servers go down?
As long as the routers and hubs are operational products continue to operate. They do not require the servers to be operational in order to function as intended.
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