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Ethernet over VDSL
Q1:what is VDSL?
Q2:What is Ethernet Over VDSL Converter?
Q3:what is " multi-port master" ?
Q4:What is the difference between asymmetrical and symmetrical modes?
Q5:What is different Ethernet Over VDSL Converter?
Q6:What are the different PCMCIA card types?
Q7:What is the difference between 16-BIT and 32 BIT version?
Q1   what is VDSL?
VDSL (Very High Bit Rate Digital Subscriber Line) is a new and exciting technology that allows video, Internet and telephone service to operate simultaneously over the existing copper telephone wire coming into your office and home today.
VDSL is extremely fast asymmetric DSL technology, providing data and POTS service on a single twisted pair. VDSL is reserved for users in close proximity to a central office, and the closer the better: within 5,000 feet you can reach downstream speeds of 13 Mbps and at 1,000 feet download speeds of up to 52 Mbps can be achieved.
VDSL has not been standardized and some chip vendors have demonstrated 52 Mbps symmetric in short loops.
Q2   What is Ethernet Over VDSL Converter?
Ethernet is proven for businesses usage and well supported in operating systems and applications. Its adapter and switch/hub are at low cost. However, it requires new wiring of CAT 5 UTP or fiber-optic cables. Besides, if use CAT 5 cable, its maximum cable distance is only 100meters. With Ethernet over VDSL technology, users can utilize the telephone line to transfer Ethernet packets and extend the distance up to 1.5 km.
Q3   what is " multi-port master" ?
Currently the RP-VC1602 and RP-SP16P only provide point-to-point connecting; we do not have multi-port master. However, provides another optional TX/SC module for RP-VC1602 connection.
Q4  What is the difference between asymmetrical and symmetrical modes?
In Symmetrical mode, data travels upstream (to the Internet or data source) and downstream (from the internet or data source) at the same rate. Symmetrical DSL was designed for applications requiring high speeds in both directions, which is ideally suited for business applications. Increasingly, symmetrical applications, which began with enterprise networks, are now also required by both small and medium enterprises and residential customers.
Leading the list of symmetrical applications are video conferencing, interactive videos, and telecommuting.
Q5  What is different Ethernet Over VDSL Converter?
The Converter is a switch architecture with four RJ-45 10/100Mbps Fast Ethernet Switch ports and one 10Mbps RJ-11 symmetric Ethernet over VDSL port, the Ethernet Over VDSL combines the well proven Ethernet and VDSL technology to transmit the Ethernet format data By using VDSL signaling over the ordinary telephone wires and not impact to the current voice service.
Q6  What are the different PCMCIA card types?
The PC Card Standard provides physical specifications for three types of PC Cards, with additional provisions for extended cards. All three card types measure the same length and width and use the same 68-pin connector.
Because they differ only in thickness, a thinner card can be used in a thicker slot, but a thicker card can not be used in a thinner slot.
Q7 What is the difference between 16-BIT and 32 BIT version?
The 32-Bit version of PC Card. It is called “CardBus” and allows speeds up to 133 Mbps at 33MHz. Another 16-Bit version of PC Card. When we say “PC Card”, it means the 16-Bit PC Card. The speed of PC Card is slower than CardBus. As a comparison, 32-bit CardBus is able to take advantage of internal bus speeds that can be as much as 4~6 times faster than 16-bit PC Card. CardBus sockets are able to accept and supports all 16-Bit PC Card but 16-Bit PC Card sockets only accept 16-Bit PC Card. You have to check the slot of your notebook before ordering a PCMCIA LAN Adapter.
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