SmartRG SR310N User manual

4 Port ADSL2+ 11n 150Mbps Router
SR310N
USER MANUAL

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CONTENTS
1. OVERVIEW.................................................................................................................................4
1.1 ABOUT ADSLAND ADSL 2+............................................................................4
1.2 DEVICE INTRODUCTION................................................................................4
1.3 LED STATUS INDICATION...............................................................................5
1.4 PROTOCOLS...................................................................................................5
1.5 FEATURES.......................................................................................................5
1.6 ABOUT WIRLESS ADSL..................................................................................6
2. HARDWARE INSTALLATION AND SOFTWARE CONFIGURATION ............................7
2.1 SYSTEM REQUIREMENT ...............................................................................7
2.2 HARDWARE INSTALLATION...........................................................................7
2.3 SOFTWARE CONFIGURATION.......................................................................8
3. PROTOCOL CONFIGURATION ...........................................................................................10
3.1 CONFIGURATION GUIDE .............................................................................10
3.2 RFC1483 BRIDGE CONFIGURATION...........................................................12
3.3 PPPOAAND PPPOE CONFIGURATION.......................................................12
4.APPLICATION OF DHCP .......................................................................................................16
4.1 TCP/IP PROTOCOL CONFIGURATION.........................................................16
4.2 MODEM CONFIGURATION...........................................................................16
5. OTHER FUNCTIONS AND CONFIGURATION..................................................................18
5.1 STATUS CHECKING......................................................................................18
5.2 CONFIGURATION OF MODEM’S IP ADDRESS AND PASSWORD..............19
5.3 WIRELESS CONFIGURATION......................................................................20
6. RESET TO DEFAULT SETTING............................................................................................24
7. SPECIFICATION......................................................................................................................25
7.1 POWER SUPPLY...........................................................................................25
7.2 STANDARDS..................................................................................................25
7.3 ENVIRONMENT REQUIREMENTS ...............................................................25
APPENDIX.....................................................................................................................................26
APPENDIX A. TROUBLESHOOTING ..................................................................26
APPENDIX B. SPLITTER CONNECTION............................................................27
APPENDIX C. CONFIGURATION OF TCP/IP PROTOCOL.................................27
APPENDIX D. SHIPPING LIST............................................................................29
Reference Standards

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Related Documents
Definition & Acronyms
ATU-C ADSLTransceiver Unit, Central Office End
ATU-R ADSLTransceiver Unit, Remote Terminal End
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 QuadratureAmplitude 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
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
DSL Digital Subscriber Line
IP Internet Protocol
CO Central Office
EC Echo Canceling

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1. OVERVIEW
1.1 ABOUT ADSL AND ADSL 2+
ADSL 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 ADSL
signal is higher than that of voice, so voice and ADSL signal can coexist in one line by using a splitter to
insulate each from the other. ADSL data transfer on the asymmetry way. The upload speed is up to 1Mbps and
download speed is up to 8Mbps. It is an ideal device for broadband access.
Transmission performance of ADSL2 is improved comparing with the first generation of ADSL. These
improvements are mainly concerned with long distance, anti-line-loss, anti-noise, etc. By doubling the
transmission bandwidth, ADSL2+ has implemented a downlink rate as high as 24 Mbps. Therefore, Internet
applications such as synchronous transmission of multi video stream, online games and huge capacity of
downloading files are made possible.
1.2 DEVICE INTRODUCTION
Figure 1.1
1
OVERVIEW

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Interface introduction:
a) Power Interface: 12V DC, 500mA. .
b) Switch: To turn on or turn off the power.
c) WIFI: To switch on or switch off the WIFI.
d) LAN1~LAN4: Connect Ethernet port of the Gateway with 10/100BASE-T port of the computer using the
network cable that comes with the modem
e) Line: Connected with phone line or “ADSL”port of the splitter.
1.3 LED STATUS INDICATION
Table 1.1
Steady light
Flashing
Fast flashing
Off
POWER (green)
Power on
/
/
Power off
DSL(green)
The modem is in
good connection
The modem is boot
OK
In handshaking status
Power off
Internet(green)
Route mode and
obtained IP address
Route mode and
Data transmitting or
receiving
/
Bridge mode or no Data
transmitting or receiving
LAN(1-4)
(green)
Ethernet line is
connected to PC
Ethernet is transmitting
data
Ethernet line not connected
properly
WLAN(green)
/
/
Wireless is transmitting
data
Disable Wireless
WPS(green)
/
/
Start WPS
Disable WPS
1.4 PROTOCOLS
ADSL 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 (ADSL2), ITU
G.992.5 (ADSL2+), Annex M.
2. Web-based configuration and monitoring.
3. Supports up to 8 PVCs.
4. Routing function.
5. NAPT、DHCP function.

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6. Support GUI Upgrading.
7. ATM management function.
8. Wireless access distance is more than 150m
1.6 ABOUT WIRLESS ADSL
An ADSL MODEM is a broadband Internet access device, which utilizes the high frequency segment of
the phone line to transmit high-speed data without affecting the voice transmission. The frequency of the
ADSL signal is higher than that of voice, so voice and ADSL signal can coexist in one line by using a splitter to
insulate each from the other. ADSL data transfer adapts the asymmetry model. It supports upload
transmission speed up to 2Mbps and download speed up to 24Mbps for ADSL2+. ADSL is an ideal device for
broadband access.
But the ADSL users are also limited by the cable and can’t move freely. Wireless ADSL is a new device
that integrates WLAN and ADSL functions. User can slip the leash to visit Internet expediently as long as they
install WLAN card into their computer. The device can be utilized in company, hotel, cafe, airport, station, and
financial institution and home where there are many mobile users and the network infrastructures are difficult to
establish. The wireless ADSL supports 802.11b, 802.11b+g, 802.11g, 802.11n and 802.11b+g+n mode with
maximum data rate 150Mbps.

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2. HARDWARE INSTALLATION AND SOFTWARE
CONFIGURATION
2.1 SYSTEM REQUIREMENT
A computer with a network card with Ethernet interface.
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 ADSL MODEM to telephone jack with the telephone cord that comes with the
2
HARDWARE INSTALLATION AND
SOFTWARE CONFIGURATION

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modem.
2. Connect Ethernet port of the ADSL MODEM to Ethernet port of the computer using the network cable that
comes with the modem.
3. 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 ADSL service provider. Table
2.1 shows all the information needed to configure for different protocols.
Table 2.1
Protocol
Virtual Dial Mode
Private Line Mode
PPPOE
PPPOA
1483 Bridged
Necessary
Information
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 ADSL MODEM is: 192.168.1.1. The Subnet Mask is:
255.255.255.0. Users can configure ADSL MODEM through an Internet browser. ADSL 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 ADSL MODEM so as to enter ADSL MODEM
configuration page through a browser.
2. Set the computer’s gateway’s IP address the same as the ADSL Modem’s.
3. Set the computer’s DNS server’s IP address the same as the ADSL 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 ADSL 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: 1234 then press “OK”. The ADSL
MODEM configuration page will be shown.

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Figure 2.2
2.3.4 ADSL MODEM WORK MODE CONFIGURATION
1．For different protocols, the users need to setADSL Modem accordingly as listed below:
Table 2.2
PPPoE
PPPoA
PVC
Protocol
Use DNS
User Name
Password
√
PPPoE
Enable
√
√
√
PPPoA
Enable
√
√
1483 Bridged
PVC
Default route
√
Disable
Note: √means configure according to ADSL service provider’s instructed value.
PPPoE can also be realized via third party dialup software.
User Manual
Reference Chapter
PPPoE
PPPoA
1483 Bridged
3.3
3.3
3.2
2．After getting through every page for parameters set-up, click “save”to save the value in ADSL MODEM
3．Click the “SysRestar”on “Maintenance”Tab to enter the page as Figure 2.3.You can choose “Current
Settings” and Click “Restart”button to reboot the ADSL MODEM.(You can also choose the “factory
default settings”in order to restart the modem to default configuration.)
Figure 2.3

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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 “Internet”on “Interface Setup”Tab. You can modify the configuration.
Note: At most we can have eight connections.
You can got the detail about the default seven connections after you click the button “PVCs
Summary”as Figure 3.1
Figure 3.1
If you need to add a new connection, please modify an existing connection
For example, if you need to add a new connection “VPI/VCI=8/88”(The correct PVC (VPI/VCI) you can
get from the ISP.) instead of the connection “VPI/VCI=0/33”.
You can modify as Figure 3.2 and choose “PVC0”and find the change as Figure 3.3.
3
PROTOCAL CONFIGURATION

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Figure 3.2
Figure 3.3
The Modem supports three ADSL protocol modes. Choose the protocol which is appointed by ISP and
PVC encapsulation. Below, we introduce the configuraion of the three protocol modes.

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• PPP over ATM (PPPoA) • PPP over Ethernet (PPPoE)
• Bridging
Some connection lines need to confirm the LLC or VC, if you can’t confirm, please don’t modify the
default value or ask your ISP.
3.2 RFC1483 BRIDGE CONFIGURATION
If you get the correct PVC (VPI/VCI) which you can get from the ISP, you don’t need modify another
parameter. Click “save”to save configuration as Figure 3.4.
Figure 3.4
3.3 PPPOA AND PPPOE CONFIGURATION
PPPoE is also known as RFC 2516. It is a method of encapsulating PPP packets over Ethernet.
PPPoA is also known as RFC2364 and named as Peer to Peer Protocol over ATM.As PPPoE, it also has all
the features of PPP.Although it’s based on ATM protocol, the setting of all the other parameters is similar with

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PPPoE. So we only introduce PPPoE in detail here.
In Figure 3.4, select PPP over Ethernet (PPPoE), entering the configuration interface, as Figure 3.5
Figure 3.5

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In Figure 3.4, select PPPoA from “Encapsulation”entering the configuration interface, as Figure 3.6
Figure 3.6

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Select “Get IPAddress Dynamic”and enter Severvice name、username、password.
Broadband User Name: Your account from ISP to access Internet.
Password: Input the password assigned by your ISP.

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4. APPLICATION OF DHCP
Apart from being a modem, ADSL Modem can also support router and DHCP applications, which are
especially applicable for small business, small scale LAN, net-café, etc.
The ADSL Modem can work as a router and DHCP sever without proxy server. The configuration steps are
shown below:
4.1 TCP/IP PROTOCOL CONFIGURATION
1. Set IP address as “Automatically obtain IP address”;
2. Set gateway’s IP the same as Modem’s;
4.2 MODEM CONFIGURATION
1. Set protocol as described in Chapter 3.
2. DHCP sever settings:
a) Click “lan”label of Page “Interface Setup”.
Define DHCP starting IPAddress and IP Pool Count shown as Figure 4.1.
b) Fill in the starting IP address. Here we will use 192.168.1.2 as an example.
c) Do not change other options. Click “Save”to save the config.
4
APPLICATION OF DHCP

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Figure 4.1

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5. OTHER FUNCTIONS AND CONFIGURATION
5.1 STATUS CHECKING
The working status of ADSL MODEM can be monitored by some pages.
1．Overview of Device Information
As shown in Figure 5.1, the information of Firmware Version, ADSL firmware Version, ADSL link status,
link speed and LAN interface can be viewed on this page.
5
OTHER FUNCTIONS AND
CONFIGURATION

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Figure 5.1
5.2 CONFIGURATION OF MODEM’S IP ADDRESS AND PASSWORD
1. CONFIGURATION OF MODEM’S IPADDRESS
As a network device, ADSL Modem has its own IP address and MAC address. The factory sets the ADSL
Modem at a default IP address of 192.168.1.1 and subnet mask of 255.255.255.0. The user can configure these

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addresses through the LAN page.
2. Configuration of administrator’s password and user’s password
When logging on the setting page of ADSL Modem, the system requires user name and password to verify
for permission. The default administrator’s account is “admin”and the default password for this account is
“1234”. The user, through the user configuration tab on Administration page, can change the passwords.
(Attention: please remember the password after changing otherwise you will not be able to change
configuration after saving.)
5.3 WIRELESS CONFIGURATION
Press “WIRELESS”on the top of web pages to enter wireless section. You can select to configure
wireless setup, security and management.
5.3.1 WIRELESS SETUP
Click “WIRELESS”on the top menu to setup basic wireless parameters. In default, check “Access Point”
box to launch wirelessAP.
5.3.1.1.Access Point Settings
SSID (Service Set Identifier): The mobile users cannot access WLAN until setting their SSID as the same
value of the wirelessADSL. The SSID value of the ADSL is “default”
Current Channel：To denote the different frequency of wireless signals whose value is from 1 to 11. The
default value is”11”. If there are more than oneAPs located in the same area, each of them must works at
different channels to reduce interference. For Example: Three APs are install in the same place, theAP’s
channel should be 1,6 and 11 respectively.
Wireless mode: The default setting is 802.11b+g+n (Mixed mode). If you do not know or have among 11n
11g and 11b devices in your network, then keep the default setting
Beacon interval: The Beacon Interval value indicates the frequency interval of the beacon. Enter a value
between 20 and 1000.A beacon is a packet broadcast by the Router to synchronize the wireless network.
RTS/CTS Threshold: The RTS (Request To Send) threshold (number of bytes) for enabling RTS/CTS
handshake. Data with its frame size larger than this value will perform the RTS/CTS handshake. Setting this
attribute to be larger than the maximum MSDU (MAC service data unit) size turns off the RTS/CTS
handshake. Setting this attribute to zero turns on the RTS/CTS handshake Enter a value between 1500 and
2347.
DMIT: This value, between 1 and 255, indicates the interval of the Delivery Traffic Indication Message
(DTIM).