1.1 ABOUT VDSL ................................................................................................................................................................. 5
1.3 LED STATUS INDICATION .......................................................................................................................................... 6
1.5 FEATURES ..................................................................................................................................................................... 6
2. HARDWARE INSTALLATION AND SOFTWARE CONFIGURATION ................................................................................. 7
2.1 SYSTEM REQUIREMENT ........................................................................................................................................... 7
5. OTHER FUNCTIONS AND CONFIGURATION ...................................................................................................................... 21
5.1 STATUS CHECKING................................................................................................................................................... 21
5.2 CONFIGURATION OF MODEM’S IP ADDRESS AND PASSWORD ................................................................... 22
6. RESET TO DEFAULT SETTING .............................................................................................................................................. 23
7. USAGE OF USB INTERFACE ................................................................................................................................................ 24
8.1 POWER SUPPLY ........................................................................................................................................................ 29
APPENDIX A. TROUBLESHOOTING ............................................................................................................................. 30
APPENDIX B. SPLITTER CONNECTION ...................................................................................................................... 31
APPENDIX C. CONFIGURATION OF TCP/IP PROTOCOL ........................................................................................ 32
APPENDIX D. SHIPPING LIST ........................................................................................................................................ 34
FCC INFORMATION ..................................................................................................................................................................... 35
THIS DEVICE MUST NOT BE CO-LOCATED OR OPERATING IN CONJUNCTION WITH ANY OTHER ANTENNA
OR TRANSMITTER ....................................................................................................................................................................... 35
REGULATORY INFORMATION / DISCLAIMERS ................................................................................................................... 35
SAFETY INFORMATION .............................................................................................................................................................. 35
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ZXDSL 831AII User Manual
Caution
This device complies with Part15 of the FCC Rules.Operation is subject to the
following conditions:
(1)this device may not cause harmful interference,and
(2) this device must accept any interference received,including interference that
may cause undesired operation
Related Documents
Definition & Acronyms
VDSL Very-High-Bit-Rate Digital Subscriber Loop
DHCP Dynamic Host Configruration Protocol
FEXT Far-end Cross Talk
HDSL High-rate Digital Subscriber Line
POTS Plain Old Telephone Service
PSTN Public Switched Telephone Network
WINS Windows® Internet Name Server
ADSL Asymmetric Digital Subscriber Line
OAM Operations, Administration And Maintenance
QAM Quadrature Amplitude Modulation
DMT Discrete Multitone
DSL Digital Subscriber Line
FEC Forward Error Correction
ATM Asynchronous Transfer Mode
WAN Wide Area Network
PRD Pseudo-random Downstream
PRU Pseudo-random Upstream
USB Universal Serial Bus
LAN Local Area Network
PVC Permanent Virtual Circuit
SVC Switched Virtual Circuit
PPP Point to Point protocol
DNS Domain Name Server
VPI Virtual Path ID
VCI Virtual Circuit ID
IP Internet Protocol
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CO Central Office
EC Echo Canceling
ZXDSL 831AII User Manual
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ZXDSL 831AII User Manual
OVERVIEW
1. OVERVIEW
1.1 ABOUT VDSL
VDSL is a fast version of ADSL.VDSL MODEM is a broadband Internet access device,which utilizes
the high frequency segment of the phone line to transmit high-speed data without interfering with the voice
transmission. The frequency of VDSL signal is higher than that of voice, so voice and VDSL signal can coexist
in one line by using a splitter to insulate each from the other. VDSL data transfer on the asymmetry way. The
upload speed is up to 19.2Mbps and download speed is up to 55Mbps. It is an ideal device for broadband
access.
1.2 DEVICE INTRODUCTION
Interface introduction:
① Power Interface: 12V DC,1.25A.
Figure 1.1
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ZXDSL 831AII User Manual
② Power switch: To turn on or turn off the power.
③ Reset Key: Reset default configuration.
④ Ethernet Interface: To be connected to a PC network card by a network cable, also can use a crossover cable
to connect to Hub, Switch or Router.
⑤ Line Interface: Connected with phone line or “VDSL” port of the splitter.
1.3 LED STATUS INDICATION
Table 1.1
Status POWER
(green)
LINK (green) DATA (green) USB(green)
WiFi (green)
Steady
light
Flashing / No signal / USB port transmit or
Fast
flashing
Off Power off Power off PPP is Off USB line not
Power on The modem is
in good
connection
/ In handshaking
status
PPP is on USB line is
connected
receive data
Transmitting or
receiving data in PPP
mode
/ /
connected properly
Wireless is connected
/
Wireless is not
connected
1.4 PROTOCOLS
VDSL Modem supports the following protocols:
1. PPPoA(PPP over ATM ) LLC encapsulation or VCMUX encapsulation (RFC2364)
2. PPPoE (PPP over Ethernet) LLC encapsulation or VCMUX encapsulation (RFC2516)
3. 1483 bridge(1483 Bridged IP over ATM)LLC encapsulation or VCMUX encapsulation (RFC1483)
4. 1483 routing(1483 Routing IP over ATM)LLC encapsulation or VCMUX encapsulation (RFC1483)
5. Classical IP over ATM (RFC1577)
1.5 FEATURES
1. Supports ANSI T1.413 ISSUE 2, ITU G.992.1(G.DMT), ITU G.992.2(G.LITE), ITU G.992.3, ITU G.992.5.
2. Web-based configuration and monitoring.
3. Supports up to 8 PVCs.
4. Routing function.
5. NAPT、DHCP function.
6. Software upgradeable.
7. ATM management function.
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HARDWARE INSTALLATION AND
SOFTWARE CONFIGURATION
2. HARDWARE INSTALLATION AND SOFTWARE
CONFIGURATION
2.1 SYSTEM REQUIREMENT
A computer with a USB interface or a network card with Ethernet interface.
ZXDSL 831AII User Manual
2.2 HARDWARE INSTALLATION
2.2.1 HARDWARE CONNECTION
Figure 2.1
To go online and make phone calls simultaneously, please refer to Appendix B: SPLITTER CONNECTION.
2.2.2 INSTALLATION STEPS
1. Connect line port of the VDSL MODEM to telephone jack with the telephone cord that comes with the
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ZXDSL 831AII User Manual
modem.
2. Connect Ethernet port of the VDSL MODEM to Ethernet port of the computer using the network cable that
comes with the modem.
3. Connect USB port of the VDSL MODEM to USB port of the computer using the USB cable that comes
with the modem.
4. Plug in the power cord , and turn on the power.
2.3 SOFTWARE CONFIGURATION
2.3.1 PREPARATION BEFORE SOFTWARE INSTALLATION
Before the installation, please confirm information below or consult with the VDSL service provider. Table
2.1 shows all the information needed to configure for different protocols.
Table 2.1
Protocol
Necessary
Information
Virtual Dial Mode Private Line Mode
PPPOE PPPOA 1483 Bridged
VPI VPI VPI
VCI VCI VCI
User name User name
Password Password
2.3.2 COMPUTER CONFIGURATION
The default factory-set IP Address for the VDSL MODEM is: 192.168.1.1. The Subnet Mask is:
255.255.255.0. Users can configure VDSL MODEM through an Internet browser. VDSL MODEM can be used
as a gateway and DNS server and users need to set the computer’s TCP/IP protocol as follow:
1. Set the computer at same Internet segment with VDSL MODEM so as to enter VDSL MODEM
configuration page through a browser.
2. Set the computer’s gateway’s IP address the same as the VDSL Modem’s.
3. Set the computer’s DNS server’s IP address the same as the VDSL Modem’s or that of an effective DNS
server.
If the user has any question regarding the computer’s TCP/IP protocol, please refer to APPENDIX C:
TCP/IP PROTOCOL CONFIGURATION.
2.3.3 VDSL MODEM CONFIGURATION
Open the browser; input http://192.168.1.1 in the address column. Press “Enter” key then the entry dialog
box will pop up as Figure 2.2, Input username: admin, and password: admin (Note that this is capital
sensitive), then press “Enter”. The VDSL MODEM configuration page will be shown.
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ZXDSL 831AII User Manual
Figure 2.2
2.3.4 VDSL MODEM WORK MODE CONFIGURATION
1. For different protocols, the users need to set VDSL Modem accordingly as listed below:
Table 2.2
PPPoE
PPPoA
1483 Bridged
Note: √ means configure according to VDSL service provider’s instructed value.
PPPoE can also be realized via third party dialup software.
User Manual
Reference Chapter
2. After getting through every page for parameters set-up, click “Apply” to save the value in VDSL MODEM
3. Click the “Restore Default Settings” on “Management” Tab to enter the saving configuration page as
Figure 2.3. After the Modem reboot,The VDSL MODEM will work on the new parameters.
ATM VC Protocol Use DNS User Name Password
√ PPPoE Enable √ √
√ PPPoA Enable √ √
Lower interface Default route
√Disable
PPPoE PPPoA 1483 Bridged
3.3 3.3 3.2
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Figure 2.3
ZXDSL 831AII User Manual
PROTOCAL CONFIGURATION
3. PROTOCOL CONFIGURATION
If the configuration is bridge encapsulation, there is no need to configure any more parameters. Only need
to use the third party dial-up software to connect the Internet.
Totally, this router supports:PPPoA、PPPoE、Bridging. For detail configuration information, please check
the following configuration guide.
3.1 CONFIGURATION GUIDE
Click “Advanced Setup” on the left page, enter into “DSL ATM Interface Configuration” page.
Note: At most we can have eight connections. If you need to add a new connection, please delete or modify
an existing connection
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ZXDSL 831AII User Manual
Figure 3.1
Click on the next connection which you want add. Press “Add” button, enter the configure guide, as Figure
3.2
Figure 3.2
The value for VPI/VCI is assigned by your ISP. After inputing the PVC value, press “Apply/Save” to
save configuration. As Figure 3.3.
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