August 24, 2012

DSL Installation Guide & How To Speed Up PTCL Internet Connection

We are going to discuss that how can we install or configure a DSL internet connection our-self. The whole process of DSL installation is very simple and easy.

First of all we need a DSL service enabled telephone line, if your telephone line has no activated DSL service then call your service provider to activate this service for you. ISP should activate this service for you at some monthly charges or rental fee because DSL service is not free.

In Pakistan the widely used DSL service is powered by PTCL (Pakistan Telecommunication Company Limited) and their support staff will always visit your premises to install or configure your DSL internet connection when you request for this service.

As PTCL or any other ISP has its own technical and support staff, so there is no need to worry about you DSL installation. Just in case if you want to do it yourself then this guide is for you. By following this guide you can also speed-up or boost your DSL connection.

ADSL / DSL Network Diagram

Required Equipment and Devices:
  1. DSL service enabled Telephone Line
  2. DSL Filter (also known as Splitter)
  3. DSL CPE (Modem / Router)
  4. Computer System
How to Install a DSL Line & Setup a Connection to the Internet ?
  • We assume that we have a telephone line with activated DSL service.
  • Line hole of DSl filter connects to PTCL wire or Wall phone Jack (RJ-11 Jack).
  • Modem hole of DSL filter connects to the DSL jack of the ADSL CPE (Customer Premises Equipment) or Modem / Router.
  • Phone hole connects to a telephone set.
  • Attach one end of LAN wire (RJ-45) to the LAN interface of CPE and the other end to the LAN wire to the LAN interface of computer’s LAN card.Connect the Power Adapter to the AC power plug and attach the connector of adapter to the CPE and switch it on.
  • Switch ON the CPE.
  • Link Indicator lights will lit up and show the connectivity. ADSL light will start blinking and soon will be static as a sign of connectivity with our system, if the line is properly jumpered in PTCL premises with the DSLAM (Digital Subscriber Line Access Multiplexer).
  • Joint less and direct cable line from the nearest PTCL pole or cabinet must be connecting to your splitter (DSL Filter) and then all the phone extensions must be taken from the phone hole of splitter.
  • The Drop wire distance from PTCL pole or Cabinet must not be ideally more than 50 meters.
DSL Configuration in CPE and Computer:
  • Switch on you computer / laptop.
  • Go to Start Menu > Control Panel > Network and Internet Connections > Network Connections.
  • Check that the Local Area Connection is enabled. Right click local Area network and click properties.
  • Click on "Internet Protocol (TCP.IP)" then click on properties and select "Use the following IP Address" then enter the following settings:

  • IP Address: (never put in this field)
  • Subnet Mask:
  • Default Gateway:
  • Preferred DNS server: (Leave this field empty if your CPE supports DNS server addressing)
  • Alternate DNS server: (Leave this field empty if your CPE supports DNS server settings)
  • Click "Ok" and then click "Close"
  • Open web browser such as "Microsoft Internet Explorer" and enter the address of your DSL CPE (modem / router) i.e. or How to Access DSL Router, Modem or CPE. (Tip: Always use "Microsoft Internet Explorer" to Access your CPE)
Video Tutorial: (Setup your PTCL Connection in 7 Steps)

Now, by following this guide, your DSL connection should be established successfully. The above described connection or wiring arrangement will also help you to speed up your DSL connection.

How to Boost or Speed Up DSL Connection ?
  1. Always use joint-less wires.
  2. The Drop wire distance from PTCL pole ideally more than 50 meters.
  3. Joint less and direct cable line from the nearest PTCL pole or cabinet must be connecting to your splitter (DSL Filter).
  4. Make firm connections.
  5. Avoid congestion in wires.
  6. Design your network in such a way that uses less wiring (short distant cables and wires are useful).
  7. ADSL line parameters: Note the SNR Margin (Noise Margin) and Line Attenuation.
  8. SNR (also known as Noise Margin) must be higher than 08 dB and Line Attenuation must be less than 45 dB for establishing a stable DSL connection.
  9. Given below are the DSL Router Status and DSL Line Status tables, may help you in speeding up you dsl connection. (status tables are just for reference purpose)
Below information reflects the current status of my DSL Router:
ADSL Port Enable

Downstream Line Rate 1020
Upstream Line Rate 380
LAN IP Address
Primary DNS Server
Secondary DNS Server
Ethernet MAC Address 00:00:00:00:00:00
Firmware Version ZXDSL 831IIV7.5.0a

Adsl line status of normal 1Mbps PTCL DSL is as the below: (It works well)
Line Mode ADSL2+ Line State Show Time
Line Up Time Duration 00:59:40:40  System Up Time 00:59:42:10 
Line Downstream Rate 1020 Line Upstream Rate 380
Latency Type Fast Line Coding Trellis On
Noise Margin 23.6 Line Attenuation 45.5
Output power 13.0 Attainable Line Rate 5592
Line Up Count 1 Status No Defect

Hope this guide helped you in understanding DSL technology and helped you in establishing a stable DSL Connection. If you are still facing any problem or difficulty then you can contact-us for technical services.

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