TP-Link TD-8840 User manual

TD-8840 User Guide
External ADSL2+ ROUTER
Rev：1.0.1

II
COPYRIGHT & TRADEMARKS
Specifications are subject to change without notice. is a registered trademark of
TP-LINK TECHNOLOGIES CO., LTD. Other brands and product names are trademarks or
registered trademarks of their respective holders.
No part of the specifications may be reproduced in any form or by any means or used to make any
derivative such as translation, transformation, or adaptation without permission from TP-LINK
TECHNOLOGIES CO., LTD. Copyright © 2007 TP-LINK TECHNOLOGIES CO., LTD.
All rights reserved.

III
FCC STATEMENT
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to pro-vide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not in-stalled 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 one or more of the following
measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
•Consult the dealer or an experienced radio/ TV technician for help.
CE Mark Warning
This is a class B product. In a domestic environment, this product may cause radio interference, in
which case the user may be required to take adequate measures.
EC DECLARATION OF CONFORMITY (EUROPE)
In compliance with the EMC Directive 89/336/EEC, Low Voltage Directive 73/23/EEC, this product
meets the requirements of the following standards:
• EN55022
• EN55024
• EN60950
SAFETY NOTICES
Caution:
Do not use this product near water, for example, in a wet basement or near a swimming pool.

IV
Package contents
The following contents should be found in your box:
¾One TD-8840 External ADSL2+ ROUTER
¾One AC power Adapter for TD-8840 External ADSL2+ ROUTER
¾One Resource CD for TD-8840 External ADSL2+ ROUTER, including:
•This Guide
•Other Helpful Information
•Quick installation Guide Program
¾Quick installation Guide
¾One RJ45 cable
¾Two RJ11 cable
¾One ADSL splitter
)Note:
If any of the listed contents are damaged or missing, please contact the retailer from whom you
purchased the product for assistance.

V
COMMENT
Chapter 1. Introduction ........................................................................................ 1
1.1 Product Overview ...................................................................................................... 1
1.2 Main Features ........................................................................................................... 1
1.3 Supporting protocol ................................................................................................... 2
1.4 Transmit data-rate..................................................................................................... 2
1.5 ATM propert .............................................................................................................. 3
1.6 System support ......................................................................................................... 3
1.7 Working environment ................................................................................................ 3
1.8 Electric parameter ..................................................................................................... 3
1.9 Conventions .............................................................................................................. 4
Chapter 2. Hardware Installation ......................................................................... 5
2.1 System requirement .................................................................................................. 5
2.1.1 LED explanation ...............................................................................................................5
2.2 Rear-panel ................................................................................................................ 6
2.3 Hardware installation procedures.............................................................................. 6
Chapter 3. System Configuration ........................................................................ 8
3.1 Computer Configuration ............................................................................................ 8
3.2 Login ......................................................................................................................... 9
3.3 Web Setup .............................................................................................................. 11
3.4 Software Dial ........................................................................................................... 28
Chapter 4. Advantage management setup ....................................................... 30
Appendix A: FAQ.................................................................................................... 31
Appendix B: Default Config................................................................................... 33
Appendix C: Contact Information ......................................................................... 34

TD-8840 External ADSL2+ Router User Guide
1
Chapter 1.Introduction
1.1 Product Overview
TP-LINK® TD-8840 External ADSL2+ ROUTER is the latest product designed and manufactured
by TP-LINK TECHNOLOGIES CO., LTD. With TP-LINK’s excellent circuit design and high quality
production, we guarantee the ADSL2+ ROUTER’s high performance, great stability and easy to
use.
The TD-8840 uses integrated ADSL2+ transceiver. The AFE supports full-rate ADSL connectivity
conforming to the ITU and ANSI specifications.
In addition to the basic DMT physical layer functions, the ADSL PHY supports dual latency ADSL
framing (fast and interleaved) and the I.432 ATM Physical Layer.
The TD-8840 is a complete plug-and-play solution. With standard Ethernet interface, it can be
directly connected to any 10M/100M Ethernet devices, support Auto-MDIX.
The TD-8840 not only uses html (web mode through Ethernet port) to configure the ROUTER but
also uses external utility software. You can download it from our website (http://www.tp-link.com).
1.2 Main Features
¾High speed and asymmetry data transmit mode, built-in 4-port switch realize multi-user to
share wide-band internet access
¾Support All ADSL2+ industrial standards
¾Compatible with all mainstream DSLAM (CO)
¾Firmware upgradeable
¾Provide integrated access of internet and route function which face to SOHO user
¾Advanced DMT modulation and demodulation

TD-8840 External ADSL2+ Router User Guide
2
¾Real-time Configuration and device monitoring
¾Quick response semi-conductive surge protect circuit, provides reliable ESD and
surge-protect function
1.3 Supporting protocol
- G.992.1 (G.dmt) - Annex A
- G.992.2 (G.lite) - Annex A
- ANSI T1.413
- G.992.3 (ADSL2) - Annex A and Annex M
- G.992.5 (ADSL2+) Annex A and Annex M
- ADSL dual latency (fast path and interleaved path)
- I.432 ATM physical layer compliant
- Supports RFC2364 (PPPoA)
- Supports RFC2516 (PPPoE)
- Supports RFC2684 (EoA)(Bridged *and Router)
- Supports RFC1577 (IPoA)
)Note:
“*” Needs the third-party software.
1.4 Transmit data-rate
¾Max download data-rate: 24Mbps

TD-8840 External ADSL2+ Router User Guide
3
¾Max upload data-rate: 1Mbps
¾Max line length: 6Km
1.5 ATM propert
¾AAL0, AAL5, OAM, RM, and raw cell types supported
¾Direct hardware support for 4 Receive VCs, with additional RX VCs and TX VCs supported in
software
¾Full 24-bit Virtual Path Identifier (VPI) and Virtual Circuit Identifier (VCI)
1.6 System support
¾Support PVC
¾Support NAT、DHCP and so on
¾Support IEEE 802.3、IEEE 802.3u
¾Support 10Base-T/100BASE-TX full-duplex or half duplex Ethernet
¾Support Auto-MDIX
1.7 Working environment
¾Operating temperature: 0 ~40℃℃
¾Storage temperature: -40 ~70℃℃
¾Humidity: 10%~90% (non-condensing)
1.8 Electric parameter
¾Adaptor power Output: 9VAC/0.8A，50Hz or 60 Hz
¾Power consumption: 6W Maximum

TD-8840 External ADSL2+ Router User Guide
4
1.9 Conventions
The Router or TD-8840, or device mentioned in this User guide stands for TD-8840 External
ADSL2+ ROUTER without any explanations.
Parameters provided in the pictures are just references for setting up the product, which may
differ from the actual situation.
You can set the parameters according to your demand.

TD-8840 External ADSL2+ Router User Guide
5
Chapter 2.Hardware Installation
The TD-8840 maintains five separate interfaces, four Ethernet and one ADSL interface. The
Router should not be located where it will be exposed to moisture or excessive heat. Place the
Router in a location where it can be safely connected to the various devices as well as to a power
source.
2.1 System requirement
Confirm your computer has been installed with networking interface card (NIC) before connecting
ADSL2+ ROUTER to your computer, with operating system supporting the TCP/IP protocol.
2.1.1 LED explanation
The front panel of ADSL2+ ROUTER includes one power indicator (RED) and seven function
indicators (GREEN), as explained in chart below:
Indicator Description Status Function Details
On Power OK
PWR Power
Off Power fail
Slow flash Self-detecting when power up
Quick flash Connecting to the telecom network
ADSL ADSL status
On Connection to telecom network OK
On
There is mistake when ADSL transmitting data
or receiving data
ALARM Mistake
Off ADSL normal
ACT Data
On There is data transmitting or receiving on WAN

TD-8840 External ADSL2+ Router User Guide
6
port
Off No data transmitting or receiving on WAN port
On 1~4(LAN) port normal
Off Connection on 1~4(LAN) port abnormal
LAN(1-4) Ethernet
Flash
Data transmitting or receiving on 1~4(LAN)
port
2.2 Rear-panel
¾ON/OFF: Turn on/off the ADSL2+ ROUTER’s power.
¾Power (9VAC/0.8A input): please do not use any unknown power adaptor, otherwise your
ADSL2+ ROUTER may be damaged.
¾RESET(reset default): First press the reset button of ROUTER, then turn on the ROUTER’s
power for at least three seconds. It will resume the default manufacturer’s setup.
¾1~4(LAN): Connect with your computer’s NIC.
¾LINE(WAN): Connect to the MODEM Port of Splitter or Connecting the telephone line.
2.3 Hardware installation procedures
The procedure to install the Router can be described in general terms in the following steps:
First Step: Connect the MODEM port of Splitter with the TD-8840 ADSL2+ ROUTER LINE port
by telephone line.
Second Step: Connect category 5 cable with RJ45 jacks to the ADSL2+ ROUTER’s LAN port and
your computer’s NIC.
Third Step: Plug one end of the AC Power Adapter into the Power jack on the Ethernet ADSL2+

TD-8840 External ADSL2+ Router User Guide
7
ROUTER and the other end to a standard electrical outlet.
Last Step: Check the line connection to see if everything is ready. Power up finally.
Figure 2-1

TD-8840 External ADSL2+ Router User Guide
8
Chapter 3.System Configuration
3.1 Computer Configuration
1. Connect the cable according to Chapter 2, turn on the power.
2. Change the IP address of your PC（Figure 3-1）: Open TCP/IP Properties of the LAN card in
your PC, enter the IP address as 192.168.1.* (* is any value between 2 to 254, Net mask is
255.255.255.0, Gateway is 192.168.1.1, DNS address is the value provided by ISP).
Figure 3-1
)Note:
Users of Windows 98 can open TCP/IP Properties according to the following: Right-click (Mouse)
Network Neighbor -> Choose Properties -> Double-click TCP/IP.
Users of Windows 2000/NT/XP can do the following: Right-click Network Neighbor -> Choose

TD-8840 External ADSL2+ Router User Guide
9
Properties -> Right-click Local Connection -> Choose Properties -> Double-click Internet
Protocol (TCP/IP).
)Note:
The words in fact may be different with this guide.
Remarks: you can check whether your configuration is successful through PING command. Enter
Ping 192.168.1.1
If the screen looks like the following, you have been successful.
Figure 3-2
If the screen looks like the following, the connection has failed. Please try again.
Figure 3-3
3.2 Login
Startup Internet Explorer, and enter 192.168.1.1;then enter default user name(admin) 、
password(admin), When ADSL2+ connection is OK, you will see the Figure 3-2.

TD-8840 External ADSL2+ Router User Guide
10
Figure 3-4
You will then see the Figure 3-5, you will see some information such as link rate and so on.
Figure 3-5
User name and password is “admin”; if you want to change them, please go to “Management” Æ
“Access control”Æ“Passwords” changing them. (Figure 3-6)

TD-8840 External ADSL2+ Router User Guide
11
Figure 3-6
3.3 Web Setup
Choose “Advanced Setup”Æ”WAN”, you will enter the page of Wide Area Network (WAN)
Setup, you will see the Figure 3-7.
Figure 3-7
There are 7 PVC links in the WAN setup page, choose the appropriate PVC according to your

TD-8840 External ADSL2+ Router User Guide
12
need, and then click the edit button, you will enter the page of ATM PVC Configuration (See
Figure 3-8)
Figure 3-8
Enter VPI/VCI value and service category which is provided by your ISP, click next to enter the
next step. You will see the Figure 3-9.
)Note:
The type of network protocol selected may be different in different areas, there are five types
（Figure 3-9）, So you should ask your ISP to acquire the local type of network protocol and
Encapsulation mode.

TD-8840 External ADSL2+ Router User Guide
13
Figure 3-9
After choosing the proper protocol, enter the correct parameters supported by your ISP. Enable
the configurations, then you will go to Internet.
1. PPP over ATM (PPPoA)
If you select the protocol of PPP over ATM (PPPoA), you will see the Figure 3-10, enter the value
of user name and password which is provided by your ISP, after selecting the other function(often
using the default setup), click the next button.

TD-8840 External ADSL2+ Router User Guide
14
Figure 3-10
You will see the Figure 3-11, then turn on the selected functions according to your demands.
Clicking the next button to enter the next step, you will see the Figure 3-12, finally click save to
complete the configuration.
Figure 3-11

TD-8840 External ADSL2+ Router User Guide
15
Figure 3-12
2. PPP over Ethernet (PPPoE)
If you select the protocol of PPP over Ethernet (PPPoE), you will see the Figure 3-13, enter the
value of user name and password which is provided by your ISP, after selecting the other function
(often using the default setup), click the next button.