Manual ZXDSL 831C modem
User’s Manual - First Edition Feb. 2004
ZTE CORPORATION
ZTE Plaza, Keji Road South, Hi-Tech Industrial Park, Nanshan District, Shenzhen, P.R.China
Website: http://www.zte.com.cn
Postcode: 518057
Customer Support Center: (+86755) 26771900 800-9830-9830
Fax: (+86755) 26770801
Email: support@zte.com.cn
Contents
2 ZXDSL 831C Hardware Description
3.2 ZXDSL 831C Factory Defaults
1 Overview
Thank you for using ZXDSL 831C ADSL Modem. Please read the manual carefully before you use it.
ZTE ZXDSL 831C is an ADSL access device to support multiple line modes. It provides a 10/100BaseT interface for Ethernet connection at the user end. Utilizing the high-speed ADSL connection, ZXDSL 831C provides users with broadband connectivity to the Internet or the Intranet.
ZTE Corporation reserves the right to change the technical specifications in this manual without advance notice. 1.1 Features
Offers ADSL high-speed connection over ordinary telephone lines
Supports G.992.1, G.992.2 and T1.413 standards
Supports dying gasp
Supports Bridge or Router mode
Supports RFC 1483 and PPPoE bridging function
Supports IPoA and PPPoA/PPPoE routing features (optional)
Supports IP filtering and NAT, up to 253 networks
IP addresses can be translated with firewall protection function (optional)
Supports DMZ and virtual server
Supports UpnP
Supports 4 interfaces of 10/100BaseT Ethernet (MDI/MDIX)
Supports DHCP for network configuration (optional)
Web-based interface for configuration
High reliability, easy operation and low power consumption
Compatible and interoperable with multiple central office (CO) DSLAM equipment.
OAM&P operation and maintenance via Telnet
Note: The realization of some of the features above is subject to the services provided by your ISP! 1.2 Packet Contents
The shipping carton contains the items listed below.
ZXDSL 831C ADSL Modem | x 1 |
External splitter | x 1 |
| AC adapter | x 1 |
Telephone line | x 2 |
Straight-through Ethernet cable | x 1 |
ZXDSL 831C ADSL Modem User’s Manual | x 1 |
Warranty Card | x 1 |
Product License | x 1 |
1.3 System Requirements
Before using ZXDSL 831C, verify that you meet the following requirements:Subscription for ADSL service. Your ADSL service provider must provide you with at least one valid IP address (static assignment or dynamic assignment via dial-up connection).
One or more computers, each contains an Ethernet 10/100M Base-T network interface card (NIC).
A hub or switch, if you are connecting the device to more than one computer.
For system configuration using the supplied web-based program: a web browser such as Internet Explorer v5.0 or later, or Netscape v6.0 or later.
2 ZXDSL 831C Hardware Description
| 2.1 Case Outlook: |
| LED | Color | Function |
| PWR | Green | Power Indicator |
| DIAG | Green | Blinking while powering on: |
| LAN 1 to 4 | Green | On: LAN link established and active Off: No LAN link |
| DSL | Green | Lights on: ADSL link established and active Blinks normally: Data transmitting Blinks quickly: ADSL link is being established Lights off: No signal detected or no DSL function active |
| Port | Function |
| DSL | Connects the device to an ADSL telephone jack or splitter using a RJ-11 telephone line |
| LAN | Connects the device to your PC's Ethernet port, or to the uplink port on your hub/switch, using a RJ-45 cable |
| RESET | Reset to factory defaults. To restore factory defaults, keep the device powered on and push a paper clip into the hole. Press down the button over three seconds and then release |
 | Switches the unit on and off |
| PWR | Connects to the supplied power adapter |
This Quick Installation part describes how to connect the ZXDSL 831C device to your computer, LAN and the Internet.
This Quick Installation assumes you have subscribed to an ISP for ADSL service and only covers the basic configurations to be applied to residential or corporate networks. 3.1 Hardware Connection
Recommendation: It is recommended to follow the first example in actual connection!
Note: In the circumstance where the first connection example is not applicable and you choose to use the second example, you must install a MicroFilter on the telephone line (a splitter can never be used to replace the MicroFilter).
Special attention: Installing a telephone directly before the splitter will lead to a failure to connect to the CO side device and the Internet or slow connection speed. If you need to connect a telephone to the telephone line before the splitter, a MicroFilter is required. (Generally, you can connect only one MicroFilter before the splitter for reducing noise.)
1. Shown as the two examples below, use a Telephone line to connect the DSL port of ZXDSL 831C to the MODEM port of the splitter, and connect the telephone line to the PHONE port of the splitter. Then connect the wall phone jack with the LINE port of the splitter.
The splitter comes with three connectors as below:
LINE: Connects to a wall phone jack (RJ-11 jack)
MODEM: Connects to the DSL jack of ZXDSL 831C
PHONE: Connects to a telephone set
2. Use an Ethernet cable (straight-through or cross-over) to connect the LAN port of ZXDSL 831C to your LAN or a PC with network card installed.
3. Connect the power cord to the PWR connector on ZXDSL 831C, then plug in the AC power adapter to the AC power outlet, and then press the on-off button.
| ZXDSL 831C installation example 1 – When a splitter is connected to the wall outlet with ADSL service: |
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| ZXDSL 831C installation example 2 – When a splitter is installed near the ADSL Modem: |
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3.2 ZXDSL 831C Factory Defaults
The device is deployed with the following factory defaults:
· IP address: 192.168.1.1, Subnet mask: 255.255.255.0
· Four sets of VPI/VCI: 0/32, 0/35, 8/35, 8/81, 0/33, 0/100, 8/36, 1/39
· Line code: Auto
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In the Windows task bar, click the “Start” button, point to “Settings”, and then click “Control Panel”.
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Double-click the “Network” icon.
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On the “Configuration” tab, select the TCP/IP network associated with your network card and then click “Properties”.
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In the “TCP/IP Properties” dialog box, click the “IP Address” tab. Set the IP address as 192.168.1.x (x can be a decimal number from 2 to 254.) like 192.168.1.2, and the subnet mask as 255.255.255.0.
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On the “Gateway” tab, set a new gateway as 192.168.1.1, and then click “Add”.
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Configure the “DNS” tab if necessary. For information on the IP address of the DNS server, please consult with your ISP.
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Click “OK” twice to confirm and save your changes.
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You will be prompted to restart Windows. Click “Yes”.
3.3.2 Windows 2000 - In the Windows task bar, click the “Start” button, point to “Settings”, and then click “Control Panel”.
- Double-click the “Network and Dial-up Connections” icon.
- In the “Network and Dial-up Connections” window, right-click the “Local Area Connection” icon, and then select “Properties”.
- Highlight “Internet Protocol (TCP/IP)”, and then click “Properties”.
- In the “Internet Protocol (TCP/IP) Properties” dialog box, set the IP address as 192.168.1.x (x can be a decimal number from 2 to 254.), and the subnet mask as 255.255.255.0 and the default gateway as 192.168.1.1. Then click “OK”.
- Configure the “DNS” tab if necessary. For information on the IP address of the DNS server, please consult with your ISP.
- Click “OK” twice to confirm and save your changes.
Once the hardware connection is properly done, you can use the dial-up connection software to start dialing to your ISP for Internet connection. The following description uses a PPPoE dial-up software, EnterNet300 v1.60, to serve as an example:
- Launch EnterNet300 and create a new dial-up connection.
- Enter the username and password (provided by your ADSL service provider).
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- Click “Connect” to initiate the dialing. Once the connection is established, you are ready to access the Internet.
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5.1 Hardware Specification
1. LAN Interface
· Type: 4 x 10/100 BaseT, IEEE 802.3
· Connector: RJ-45
2. ADSL Interface
· Compliance: ANSI T1.413, ITU G.992.1, ITU G.992.2
· Connection Loops: One Pair (2-wire)
· Connector: RJ-11
3. Management
· WEB
· Telnet
4. Power Adapter:
· Power Adapter: Input 220 VAC, 50 Hz; Output 18 VAC 600 mA
· Power Consumption: Less than 9 Watts
5. Environment
· Temperature: 0°C ~ 40°C (32 ~104℉)
· Humidity: 10% ~ 90% (non-condensing)
6. Safety Approvals
· CE
· FCC
1. ATM
· VPI range 0-255，VCI range 32-65535
· ATM Cell over ADSL, AAL5
· Supports UBR, CBR & VBR
· Supports OAM F5, AIS, RDI, Loopback cells
· IPoA
· PPPoA
· PPPoE
2. Bridging
· Transparent Bridging (IEEE 802.1D)
· RFC 1483
· Supports 4096 MAC learning address
3. Routing (Optional)
· IP routing
· RFC 1483 routing
· PPPoA routing
· PPPoE routing
· NAT
4. Network Management
· WEB
· Telnet
Please follow the safety instructions listed below to prevent from danger and damage caused by fire, or electricity.
- Use only the type of power source indicated on the marking labels.Use only the type of power source indicated on the marking labels.Use only the type of power source indicated on the marking labels.
- Use only the power adapter supplied with the product.
- Do not overload wall outlet or extension cords as this may increase the risk of electric shock or file. If the power cord is frayed, replace it with a new one.
- Proper ventilation is necessary to prevent the product overheating. Do not block or cover the slots and openings on the device, which are intended for ventilation and proper operation. It is recommended to mount the product with a stack.
- Do not place the product near any source of heat or expose it to direct sunlight.
- Do not expose the product to moisture. Never spill any liquid on the product.
- Do not attempt to connect with any computer accessory or electronic product without instructions from qualified service personnel. This may result in risk of electronic shock or file.
- Do not place this product on an unstable stand or table.
This chapter suggests solutions for problems you may encounter in installing or using ZXDSL 831C. If the provided instructions are helpless to solve your problems, consult with your ADSL service provide for support.
| Problem | Troubleshooting Suggestion |
| Power LED does not illuminate after the device is turned on | Verify that you are using the AC adapter provided with the device and that it is securely connected to the ZXDSL 831C and a wall socket/power strip. |
| DSL LED does not illuminate after the phone line is attached | Make sure to use a standard telephone line (provided with the device). And verify that you had correctly connected the device following the relevant description in Chapter 3. Wait for 60 seconds when the ZXDSL 831C is negotiating a connection with your ADSL service provider. |
| DSL LED is in a Lights-off and fast-blinking cycle after phone line is attached | This indicates your ZXDSL 831C cannot establish an ADSL connection to the CO. Verify you have installed ZXDSL 831C based on the installation examples (refer to the connection example figures in Chapter 3). |
| LAN (10M/100M) LED does not illuminate after Ethernet cable is attached | Verify that the Ethernet cable is securely connected to your hub/PC and to the ZXDSL 831C. Make sure the PC/hub is turned on. |
| PC cannot access the Internet | Use the ping utility to check whether your PC can communicate with the device’s LAN IP address (by default 192.168.1.1). If you fail in the ping, check the Ethernet cabling and the LED status. |
| Web pages can’t be displayed. | Verify that the DNS server specified on the PCs is correct for your ISP. You can use the ping utility to test the connectivity of your PC with your ADSL service provider’s DNS server. |