03227nas|a2200445 i 4500 20260818090058.0 121095s1993 th uu m rtt 00| a1eng d .b10188320 AIT RSPR no.TC-93-04 Nguyen Minh Hoang Design and construction of an optical fiber local loop for ISDN Bangkok : Asian Institute of Technology, 1993 77 leaves + 1 online resource Research studies project report ; no. TC-93-04 A research study report submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology Research Studies Project Report (M.Eng.) - Asian Institute of Technology, 1993 Metallic cables have been used in local subscriber loop systems since the introduction of very first telecommunication system. It would appear logical to introduce fiber optic systems into subscriber networks as a natural consequence of their successful introduction into trunk networks. This study presents a design and construction of an optical-fiber local loop for ISDN basic access interface. Two optical systems, which use two-level and tri-level codes for transmitting through the fiber, were designed and implemented with a consideration in comparison with their effective cost and performance. An optical link was set up between an ISDN subscriber and NT1 of the DX-220 ISDN exchange. In addition, an CD-Player laser diode and techniques for coupling it to optical fiber were investigated. It was shown that the fiber was most suitable to be implemented at the S-interface of basic access ISDN and with ternary line coding scheme was employed for optical signal transmission. Telecommunication systems Optical fibers Lochmann, S., Chairperson Erke, Tapio J., Examination Committee Sharma, A.B., Examination Committee Finnish International Development Agency (FINNIDA), Finland, Scholarship donor Asian Institute of Technology. Research studies project report ; no. TC-93-04 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B16087 .b10188320 mnait y 240430 2 951012 m a y 0 mnait mnait mnarc mnarc 20 40 Barcode : 30050003116471 CREATED : 1994-05-16 RECORD # : i10225018 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003116463 CREATED : 1994-05-16 RECORD # : i1022502x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120370431 CREATED : 2016-03-06 RECORD # : i13016027 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050211022172 CREATED : 2022-02-15 RECORD # : i13366099 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 26814 26814 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT RSPR no.TC-93-04 30050003116471 2026-08-18 09:00:58 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT RSPR no.TC-93-04 30050003116463 2026-08-18 09:00:58 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT RSPR no.TC-93-04 30050120370431 2026-08-18 09:00:58 1 2026-08-18 40 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT RSPR no.TC-93-04 30050211022172 2026-08-18 09:00:58 3 2026-08-18 20