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Item Broadband cross connect system optical fiber backbone of ptcl(UMT.Lahore, 2005) Yasser Ehsan; M Fakhar-ul-IslamAt present Pakistan Telecommunication Company limited (PTCL) is the onlymonopoly operator in fixed telephony in Pakistan. In addition to the state of the artswitching equipment PTCL owns the latest and carrier class transmission network.Optical fiber network is the backbone of PTCL transmission network. PTCL has PDH565 Mb/s, 140 Mb/s as well as SDH 622 Mb/s and 155Mb/s systems fully functionalthrough out the country. In addition to these systems 16 x 2.5 Gb/s (Huawei) and 16 x10 Gb/s (Nortel) DWDM & SDH systems have been recently installed andcommissioned into service by PTCL. In view of exponential growth ofTelecommunications and information technology espe^pially Internet in Pakistan, thedemand of 2Mbit/s, 34Mbit/s and STM-1 access is likely to increase manifold inyears. Thus, the introduction of a future oriented broadband cross connectsystem is essential for meeting not only the future requirements but making theoptimum use of the incumbent systems. Recent study have revealed that thedeployment of broadband cross connect system through out the world has proved areliable solution to fulfill the diversified demand of the Telecom operators as well astheir customers.Based on the successful experience of a number of European and American countries,the present study recommends that the proposed broadband cross connect system plancan initially be implemented in the major cities of the country including Lahore,Faisalabad, Rawalpindi, Peshawar, Multan and Karachi. For this purpose onebroadband cross connect system of the required capacity can be installed in each ofthese cities in existing transmission halls. Owing to its efficacy, capacity andrelatively less cost estimates involved, the implementation of broadband crossconnect system will not only enhance the global image of PTCL in thetelecommunication industries but it will also increase the revenue through theprovisioning of the broadband leased lines and improvement in flexibility andreliability of the existing optical fiber network.