MicroNet SP3501C User manual

User’s Manual
VDSL2 CO/CPE Modem
Model: SP3501C

1
Table of contents
1. Introduction........................................................................................................1
1.1 Package Contents..................................................................................... 1
1.2 Features.................................................................................................... 1
2. Installation..........................................................................................................2
2.1 Hardware Installation ................................................................................ 2
2.2 Pre-installation Requirements................................................................... 2
2.3 General Rules........................................................................................... 2
2.4 Connecting the VDSL2 Modem................................................................. 3
3. Hardware Description........................................................................................5
3.1 Front Panel ............................................................................................... 5
3.2 Front Indicators......................................................................................... 5
3.3 Rear Panel................................................................................................ 6
3.4 DIP switch................................................................................................. 7
Appendix A: Cable Requirements......................................................................11
Appendix B: Product Specification....................................................................13
Appendix C: Troubleshooting ............................................................................14
Appendix D : Compliance and Safety Information ...........................................17

1
1. Introduction
Micronet introduces the next-generation broadband access solution, with the newest
VDSL2 technology, to carriers and MxU (Multi-Dwelling/Multi-Tenant Units)
environments that need for new services such as IPTV, video conferencing, VoIP,
peer-to-peer file sharing, and interactive gaming. Micronet SP3501C VDSL2 CO /
CPE Modem are fully compliant with ITU-T G.993.2 VDSL2 standard also supports
both central office (CO) and customer-premises equipment (CPE) modes selectable
through DIP Switch that is able to provide the newest broadband solution with
ADSL-like long-reach performance and high-speed symmetrical bandwidth up to
100Mbps.
1.1 Package Contents
Carefully unpack the package and check its contents against the checklist.
VDSL2 Modem
SP3501C VDSL2 Modem
Quick Installation Guide
Manual CD
RJ-45 Cable
Power Adapter
Rubber Feet x 4
Note
1, Please inform your dealer immediately for any missing, or damaged
parts. If possible, retain the carton, including the original packing
materials. Use them to repack the unit in case there is a need to return for
repair.
2. Do not use sub-standard power supply. Before connecting the power
supply to the device, be sure to check compliance with specifications.
The VDSL2 Modem of the power supply at least use DC12V/1A.
3. Power supply included in package is commercial-grade. Do not use in
industrial-grade applications.
4. If you would like to use the telephone, please purchase a suitable
external splitter and install to the line port.
1.2 Features
Supports RJ-11/Terminal Block combo for Line port.
Supports high bandwidth up to 100Mbps symmetric over Line ports
Support long reach mode up to 3 km with 24 gauge phone wire

2
Support auto speed for Line port and Interleave mode selectable through CO
side DIP switch
DIP switch with CO and CPE mode selectable
Supports long packet size up to 1536 bytes
Supports Surge protection
Supports wall mounting
Mini size and metal case design
Supports point-to-point applications
2. Installation
2.1 Hardware Installation
This chapter describes how to install the VDSL2 Modem and establishes
network connections. You may install the VDSL2 Modem on any level
surface (e.g, a table or shelf). However, please take note of the following
minimum site requirements before you begin.
2.2 Pre-installation Requirements
Before you start actual hardware installation, make sure you can provide
the right operating environment, including power requirements, sufficient
physical space, and proximity to other network devices that are to be
connected. Verify the following installation requirement:
Power requirements: DC12V/1A or above.
The VDSL2 Modem should be located in a cool dry place, with at
least 10cm/4in of space at the front and back for ventilation.
Place the VDSL2 Modem out of direct sunlight, and away from
heat sources or areas with a high amount of electromagnetic
interference.
Check if network cables and connectors needed for installation
are available
Do Not install phone lines strapped together withAC power lines,
or telephone office line with voice signal.
Avoid installing this device with radio amplifying station nearby or
transformer station nearby.
2.3 General Rules
Before making any connections to the VDSL2 Modem, note the following rules:
Ethernet Port (RJ-45)
All network connections to the Modem Ethernet port must be made
using Category 5 UTP for 100Mbps;

3
Category 3, 4 UTP for 10Mbps
No more than 100 meters of cabling may be use between the MUX or
HUB and an end node.
Phone Port (RJ-11)
All Phone set connections to the RJ-11 Port made using 24~26
Gauge phone wiring. We do not recommend the use of the
telephone line 28 gauge or above.
2.4 Connecting the VDSL2 Modem
The VDSL2 Modem has two Ethernet ports which support connection to
Ethernet operation. The devices attached to these ports must support
auto-negotiation or 10Base-T OR 100Base-TX unless they will always
operate at half duplex. Use any of the Ethernet ports to connect to devices
such as Monitor system, Server, Switch, modem or router.
2 Ethernet RJ45 jacks (Slave device(CPE) must connect Master
device(CO) through the telephone wire. Slave cannot connect
to Slave, and Master cannot connect to Master. Please confirm
the DIP switch status before the link established), therefore
straight Ethernet cables can be used.
1 x RJ11 jack (The RJ11 Line port is used to connect to
telephone that is connected to VDSL CO and CPE modem
(Point-to-point solution)
Figure 2.1 VDSL2 Point to Point applications
Step 1. RJ-11 connection
The line port has 2 connectors: Either RJ-11 port is connected or terminal block is
connected using straight connection (Figure 2.4) or cross-over connection(Figure 2.5)
When inserting a RJ-11 plug, make sure the tab on the plug clicks into position to
ensure that it is properly seated.

4
Do not plug a RJ-11 phone jack connector into the Ethernet port (RJ-45 port). This
may damage the modem. Instead, use only twisted-pair cables with RJ-45 connectors
that conform to Ethernet standard.
Step 2. RJ-45 connection
The Modem provides 2 Ethernet port, which support connection through Ethernet
operation.
It is used to connect from VDSL2 Modem (CO) using single pair phone cable to
VDSL2 Modem (CPE) modem side (point to point solution). Take note that VDSL2
Modem line port cannot be used at the same time.
Step 3. Power connection
Use the included power adaptor (DC 12V/1A) to connect the Modem power socket to
an appropriate power source.
Notes:
1. Be sure each twisted-pair cable (RJ-45 ethernet cable) does not exceed
100 meters (333 feet).
2. We advise using Category 5~7 UTP/STP cables for Cable bridge or
Bridge connections to avoid any confusion or inconvenience in the future
when you attached to high bandwidth devices.
3. RJ-11(VDSL2 Line port) use 24 ~ 26 gauge with twisted pair phone wiring,
we do not recommend 28 gauge or above.
4. Be sure phone wire has been installed before VDSL2 Modem powered
on.

5
3. Hardware Description
This section describes the important parts of the VDSL2 Modem. It
features the front indicators and rear connectors.
3.1 Front Panel
The following figure shows the front panel.
Figure 3.1 Front Panel
Tip:
At a quick glance of the front panel, it is easy to determine if it has Ethernet signal
from its RJ-45 port and if there is vdsl line signal on RJ-11 port.
And the table shows the description. (Table 3-1)
Table 3-1 Description of the modem front connectors
Connectors
Type
Description
LAN1 / LAN2
RJ-45
For connecting to a Ethernet equipped device.
Line
RJ-11/Terminal Block
For connecting to VDSL2 modem. (Do not use RJ11 and Terminal
Block at the same time.)
3.2 Front Indicators
The following table describes the LEDs.
LED
Color
Status
Descriptions
PWR
(Power LED)
Green
On(Steady)
Lights to indicate that the VDSL2 modem had power
Off
The device is not ready or has malfunctioned.
LAN 1-2
(Ethernet LED)
Green
On(Steady)
The device has a good Ethernet connection.
Blinking
The device is sending or receiving data.
Off
The LAN is not connected.

6
CO (Local Side)
(CO LED)
Green
On(Steady)
Indicate the VDSL2 modem is running at CO(Master)
mode.
CPE (Remote Side)
(CPE LED)
Green
On(Steady)
Indicate the VDSL2 modem is running at CPE(Slave)
mode.
LINE
(VDSL LINK LED)
Green
On(Steady)
The Internet or network connection is up.
Blinking slowly
The CO device is auto-detecting CPE device.
Blinking fastly
1. The CO device has detected a CPE device and
ready to connect.
2. The device is sending or receiving data.
Off
The Internet or network connection is down or has
malfunctioned.
Note:
Two Modems connection may take within 3 minutes is normal, due to VDSL2
Modem to establish a link mechanism is auto-negotiation, with detects
and calculate CO and CPE both PBO and PSD level as well as noise
level ....and other argument etc. for getting a better connection.
3.3 Rear Panel
The following figure shows the rear connectors
VDSL2 Modem Rear Connectors
Connectors
Type
Description
Power
DC Power Jack
External Power Adapter: Input: AC 85~240Volts/50~60Hz
Output: DC 12V/1A
DIP Switch
4 Pins DIP Switch
Provide 4 selectable transmission modes.
Ground
Ground lug
Please connect the ground lug to the earth. To prevent a
electric shock when user touches.

7
3.4 DIP switch
The following figure shows the DIP switch connection. By switching the transmission
modes, you can obtain a best transmission mode to suit with phone line quality or
distance or connectivity.
DIP switch setting
The following is table of DIP Switch configuration. (Table 3-4)
Table 3-4 DIP Switch Configuration
Note:
1,The DIP switch default value are OFF.
2, Please power off VDSL2 Modem, before making any transmission mode
configuration.
PIN1:
ON: CO(Central Office) Mode or called Local Side, usually the CO device will be
located at the data enter of enterprise to link to the backbone.
OFF: CPE(Customer Premises Equipment) Mode or called Remote Side, usually the
CPE side will be located at building,
monitoring for car parks and train station as the long reach data receiver.
Tip:
When the VDSL2 Modem operates at CPE mode, the DIP switch 2, 3, 4 has
no function.
PIN2:
ON: High Band mode(500KHz to 30MHz), and enable VDSL2 spectrum is 500kHz to
30MHz. It can pass through ISDN spectrum(0 ~ 499KHz are empty).
OFF: Low Band Mode(25KHz to 30MHz), the VDSL2 Modem will auto-detect the
cable length and auto choice speed mode. VDSL2 spectrum is 25KHz to 30MHz.
PIN3:

8
When SNR margin is selected, the system provide 6db/9db SNR margin for across all
usable loop length. Please note that the 6db SNR margin is for telecom standard.
Generally speaking, the higher SNR value gets better line quality, but lower
performance.
PIN4:
ON: Interleaved mode has a maximum end to end latency of 8m sec and INP=2.
When field environment has heavy noise, in order to obtain high link quality, user can
configure pin4 to “ON”, but this function will reduce performance.
OFF: Interleaved mode provides impulse noise protection for any impulse noise with a
duration less than 1ms.
TIP(Reference Only):
Interleave delay function is used in digital data transmission technology to protect the
transmission against noise issue
and data error.
If during transit more than a certain amount of data has been lost then the data cannot
be correctly decoded. Short bursts
of noise on the line can cause these data packets to become corrupt and the modem
has to re-request data which in turn
can slow down the overall rate at which data is transmitted.
Interleaving is a method of taking data packets, chopping them up into smaller bits
and then rearranging them so that
once contiguous data is now spaced further apart into a non continuous stream. Data
packets are re-assembled by your
modem.
The diagram below is an example of how interleaved traffic is transmitted.
If your line is particularly susceptible to bursts of noise then interleaving should
improve your VDSL2 experience simply
because if you lose a whole batch of data then this could cause your modem to loose
sync with the exchange.
Using Interleaving, the modem is able to re-assemble the data or if necessary just
re-request the part of the data that it is
unable to recover. By increasing the interleave depth of each ports that are
susceptible to noise, this will improve error
performance and stability of marginal lines.

9
INP(Impulse Noise Protection): Impulse noise in multicarrier communication
systems behaves effectively as a modulating
signal that controls the first moment of the background Gaussian noise. The
composite noise, which is the aggregate of the
Gaussian noise and impulse noise, has a probability density function that is
conditionally Gaussian with non-zero average,
hence referred to as biased-Gaussian. The BER-equivalent power of the composite
noise source is defined as the power of a
pure Gaussian noise source that yields the same bit-error rate (BER). The
BER-equivalent noise for a biased-Gaussian noise
is simply the amplified version of the underlying Gaussian noise source. The
amplification factor is derived from the
characteristics of the impulse interference. Any bit-loading algorithm designed for
Gaussian noise sources is also applicable to
biased-Gaussian noise sources provided that the BER-equivalent SNR is used in
place of the measured SNR.
SNRM(Signal to Noise Ratio Margin): It's very similar to a conversation at a party
and it's dealt with in the same way; we naturally account for both distance from the
other person and the amount of background noise. When we do we don't just talk loud
enough to be heard, we speak a bit louder waiting for the idiot with the stupid, loud
laugh to start up again. We add a bit extra on to make sure we're louder than the
average change in background noise.
That ratio is a major factor in determining the connection speed, as the higher the ratio
the higher the possible speed. The SNRM is a margin which by which the noise level
can rise before connection is lost.
Safety Caution!
1. Be sure to disconnect the power when installing(uninstalling) the terminal
block and power cable.
2. Please note that the user can use 12VDC power input. Do not exceed DC 12V.
3. Be sure to disconnect the power before installing and/or wiring your VDSL2
Modem.
4. Please calculate the maximum possible current in each power wire and common
wire. Observe all electrical codes dictating the maximum current allowable for
each wire size. If the current goes above the maximum ratings, the wiring could
overheat, causing serious damage to your equipment.
Grounding the VDSL2 Modem
VDSL2 MODEM is designed to enhance EMS performance by grounding. VDSL2
MODEM come with for grounding the switches. For optimal EMS performance,
connection of the left side of the VDSL2 MODEM rear panel ground lug to the
grounding point.
Before user installed power and device, please read and follow these
essentials:

10
Use separate paths to route wiring for power and devices. If power wiring and
device wiring paths must cross, make sure the wires are perpendicular at the
intersection point.
Note:
Do not run signal or communications wiring and power wiring through the same wire
conduit. To avoid interference, wires with different signal characteristics should be
routed separately.
You can use the type of signal transmitted through a wire to determine which
wires should be kept separate. The rule of thumb is that wiring sharing similar
electrical characteristics can be bundled together.
You should separate input wiring from output wiring.
We recommend that you mark all equipment in the wiring system.

11
Appendix A: Cable Requirements
Ethernet Cable
A CAT 3~7 UTP (unshielded twisted pair) cable is typically used to connect the
Ethernet device to the modem. A 10Base-T cable often consists of four pairs of
wires, two of which are used for transmission. The connector at the end of the
10Base-T cable is referred to as an RJ-45 connector and it consists of eight pins.
The Ethernet standard uses pins 1, 2, 3 and 6 for data transmission purposes.
(Table A-1)
Table A-1 RJ-45 Ethernet Connector Pin Assignments
PIN
#
MDI
MDI-X
Figure A-1 Standard RJ-45
repectacle/connector
Signal
Media
Dependant
interface
Signal
Media
Dependant
interface-cross
1
TX+
Transmit
Data +
RX+
Receive Data
+
2
TX-
Transmit
Data -
RX-
Receive Data
-
3
RX+
Receive
Data +
TX+
Transmit Data
+
4
--
Unused
--
Unused
5
--
Unused
--
Unused
6
RX-
Receive
Data -
TX-
Transmit Data
-
7
--
Unused
--
Unused
8
--
Unused
--
Unused
Note:
Please make sure your connected cables are with same pin assignment as
above table before deploying the cables into your network.

12
Figure A-2 Pin Assignments and Wiring for an RJ-45 Straight-Through Cable
Pin Assignments and Wiring for an RJ-45 Crossover Cable

13
Appendix B: Product Specification
Model
SP3501C
Standards
IEEE802.3 10BASE-T, IEEE802.3u 100BASE-TX
ITU-T G993.2
Interface
2 x RJ-45 10/100Mbps Ethernet ports
1 x RJ-11 connector for EoVDSL
1 x DIP Switch
1 x Power Jack
VDSL Line Code
DMT modulation
VDSL2 Transmission
Mode
Packet Transfer Mode (PTM)
Operating
Temperature
0°C ~ 50°C (32°F ~ 122°F)
Fanless, free air cooling
Storage Temperature
-20°C ~ 70°C (-4°F ~158°F)
Humidity
10% to 90% (non-condensing)
Power Supply
DC 12V, 1A
Power Consumption
5W
Emission
CE class A, FCC

14
Appendix C: Troubleshooting
1. Symptom:
POWER indicator does not light up (green) after power on.
Cause:
Defective External power supply
Solution:
Check the power plug by plugging in another that is functioning properly.
Check the power cord with another device. If these measures fail to
resolve the problem, have the unit power supply replaced by a qualified
distributor.
2. Symptom:
Link indicator does not light up (green) after making a connection.
Cause:
Network interface (ex. a network adapter card on the attached device),
network cable, or switch port is defective.
Solution:
2.1 Power off and re-power on the VDSL modem.
2.2 Verify that the modem and attached device are power on.
2.3 Be sure the cable is plugged into both the modem and
corresponding device.
2.4 Verify that the proper cable type is used and its length does not
exceed specified limits.
2.5 Check the modem on the attached device and cable connections
for possible defects.
2.6 Make sure the phone wire must be connecting VDSL2 Modem first,
when powered on.
2.7 Replace the defective modem or cable if necessary.
3. Symptom:
VDSL Link cannot be established.
Cause:
VDSL setting failure or phone cable length is over the specification limit.
Solution:
3.1 Please make sure that the phone wire must be connected between
VDSL2 Modem (CO) and VDSL2 Modem (CPE) when both are
power on. VDSL2 Modem (CO) will do link speed function
depending on phone wire length, therefore if VDSL2 Modem (CO)
can’t detect VDSL2 Modem (CPE) over phone wire while both
power on, this will cause the link to fail.
3.2 Please check phone wire, we recommend use 24 gauge with
twisted pair and without rust, and the length is not over 3 km.
3.3 Please check the correct Dip Switch setting. (CO: PIN1 ON, CPE:
PIN1 OFF)
3.4 Please reinsert power when change cable length or link time over 3
minutes.
Note:
Phone wire must meet CAT 3 standard or above and without
clustering, otherwise will cause more cross talk issue to reduce DSL
power driver.
4. Problem:
What is VDSL2?

15
Answer:
Very-high-speed digital subscriber line 2 (VDSL2) is an access
technology that exploits the existing infrastructure of copper wires that
were originally deployed for traditional telephone service. It can be
deployed from central offices, from fiber-optic connected cabinets located
near the customer premises, or within buildings. It was defined in
standard ITU-T G.993.2 finalized in 2005.
VDSL2 was the newest and most advanced standard of digital subscriber
line (DSL) broadband wireline communications. Designed to support the
wide deployment of triple play services such as voice, video, data, high
definition television (HDTV) and interactive gaming, VDSL2 was intended
to enable operators and carriers to gradually, flexibly, and cost-efficiently
upgrade existing xDSL infrastructure.
The protocol was standardized in the International Telecommunication
Union telecommunications sector (ITU-T) as Recommendation G.993.2.
It was announced as finalized on 27 May 2005,[1] and first published on
17 February 2006. Several corrections and amendments were published
in 2007 through 2011.
VDSL2 is an enhancement to very-high-bitrate digital subscriber line
(VDSL), Recommendation G.993.1. It permits the transmission of
asymmetric and symmetric aggregate data rates up to 200 Mbit/s
downstream and upstream on twisted pairs using a bandwidth up to 30
MHz.
VDSL2 deteriorates quickly from a theoretical maximum of 250 Mbit/s at
source to 100 Mbit/s at 0.5 km (1,600 ft) and 50 Mbit/s at 1 km (3,300 ft),
but degrades at a much slower rate from there, and still outperforms
VDSL. Starting from 1.6 km (1 mi) its performance is equal to ADSL2+.
ADSL-like long reach performance is one of the key advantages of
VDSL2. LR-VDSL2 enabled systems are capable of supporting speeds
of around 1–4 Mbit/s (downstream) over distances of 4–5 km (2.5–3
miles), gradually increasing the bit rate up to symmetric 100 Mbit/s as
loop-length shortens. This means that VDSL2-based systems, unlike
VDSL1 systems, are not limited to short local loops or MTU/MDUs only,
but can also be used for medium range applications.
5. Problem:
What is SNR(Signal-to-Noise)
Answer:
Signal-to-noise ratio (often abbreviated SNR or S/N) is a measure used
in science and engineering that compares the level of a desired signal to
the level of background noise. It is defined as the ratio of signal power to
the noise power. A ratio higher than 1:1 indicates more signal than noise.
While SNR is commonly quoted for electrical signals, it can be applied to
any form of signal (such as isotope levels in an ice core or biochemical
signaling between cells). The ratio is usually measured in decibels(dB)
The signal-to-noise ratio, the bandwidth, and the channel capacity of a
communication channel are connected by the Shannon–Hartley theorem.
In digital communications, the SNR will probably cause a reduction in
data speed because of frequent errors that require the source
(transmitting) computer or terminal to resend some packets of data. SNR
measures the quality of a transmission channel over a network channel.
The greater the ratio, the easier it is to identify and subsequently isolate

16
and eliminate the source of noise.
6. Problem:
Connected the CO Modem with CPE Modem within 300 meters
RJ-11 phonecable got only less than 10 Mbit/s.
Cause:
Some testing program that is base on TCP/IP protocol such as
FTP, Iperf, NetIQ, and the bandwidth of testing outcome will be
limited by TCP window size.
Answer:
We recommand to test VDSL2 bandwidth best by
Smartbit equipment, if you don't have Smartbit, we recommand
test that by IPERF program and TCP window size must be setted
max. 64k, the parameter as iperf –c co side ip address–I 1 –t
50 –w 65535 for client side.

17
Appendix D : Compliance and Safety
Information
FCC Radio Frequency Interference Statement
This equipment has been tested to comply with the limits for a computing device,
pursuant to Part 15 of FCC rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a
commercial environment. This equipment can generate, use and radiate radio
frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by taking one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the distance between the equipment and receiver.
3. The equipment and the receiver should be connected to outlets on separate
circuits.
4. Consult the dealer or an experienced radio/television technician for help.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
If this telephone equipment causes harm to the telephone network, the telephone
company will notify you in advance that temporary discontinuance of service may be
required. But if advance notice isn’t practical, the telephone company will notify the
customer as soon as possible.Also, you will be advised of your right to file a complaint
with the FCC if you believe it is necessary.
The telephone company may make changes in its facilities, equipment, operations or
procedures that could affect the proper functioning of your equipment. If they do, you
will be notified in advance in order for you to make necessary modifications to
maintain uninterrupted service.
This equipment may not be used on coin service provided by the telephone company.
Connection to party lines is subject to state tariffs.
Important Safety Instructions
Caution: The direct plug-in wall transformer serves as the main product for
disconnecting. The socket outlet shall be installed near the product and be
readily accessible.
Caution: Use only the power supply included with this product. In the event the power
supply is lost or damaged:In the United States, use only with CSA certified
or UL listed Class 2 power supply, rated 12Vdc 1A or above.
IN Europe, use only with CE certified power supply, rated 12Vdc 1A or
above.

18
Do not use this equipment near water, for example in a wet basement.
Avoid using a telephone during an electrical storm. There may be a remote
risk of electrical shock from lightning.
Do not use the telephone to report a gas leak in the vicinity of the leaking
area.
If you experience trouble with this unit, please contact customer service at
the address and phone listed below.
DO NOT DISASSEMBLE THIS EQUIPMENT. It does not contain any user
serviceable components.
Warranty
The original owner of this package will be free from defects in material and
workmanship for one year parts after purchase. For the warranty to apply, you must
register your purchase by returning the registration card indicating the date of
purchase.
There will be a minimal charge to replace consumable components, such as fuses,
power transformers, and mechanical cooling devices. The warranty will not apply to
any products which have been subjected to any misuse, neglect or accidental
damage, or which contain defects which are in any way attributable to improper
installation or to alteration or repairs made or performed by any person not under
control of the original owner.
The above warranty is in lieu of any other warranty, whether express, implied, or
statutory, including but not limited to any warranty of merchantability, fitness for a
particular purpose, or any warranty arising out of any proposal, specification, or
sample. It shall not be liable for incidental or consequential damages. We neither
assume nor authorize any person to assume for it any other liability.
VDSL2 Point to Point Solution
VDSL2 (Very-High-Bit-Rate Digital Subscriber Line 2, ITU-T G.993.2 Standard) is an
access technology that exploits the existing infrastructure of copper wires that were
originally deployed for POTS services. It can be deployed from central offices, from
fibre-fed cabinets located near the customer premises, or within buildings.
ITU-T G.993.2 VDSL2 is the newest and most advanced standard of DSL broadband
wireline communications. Designed to support the wide deployment of Triple Play
services such as voice, video, data, high definition television (HDTV) and interactive
gaming, VDSL2 enables operators and carriers to gradually, flexibly, and cost
efficiently upgrade existing xDSL-infrastructure.
ITU-T G.993.2 (VDSL2) is an enhancement to G.993.1 VDSL that permits the
transmission of asymmetric and symmetric (Full-Duplex) aggregate data rates up to
200 Mbit/s on twisted pairs using a bandwidth up to 30 MHz.