TRANSMISSION CONSIDERATIONS FOR THE INTRODUCTION OF PCM SYSTEMS INTO TELEPHONE NETWORKS.

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Rahmig, G.A.W.

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| 1600年 / 54期

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This article enumerates the problems that arise when PCM technology is introduced into existing analog telephone networks. It deals in particular with the different transmission characteristics of this technology with regard to 2-wire and 4-wire switching, insertion loss, stability, echoes, noise, and modulation. By observing certain rules for the transition from analog to all-digital operation it is possible to minimize any problems. A strategy is outlined for introducing a combination of PCM switching and transmission technology and selecting the pads necessary for flexible matching to the various types of lines in existing networks.

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[31] ADMINISTRATION OF TRAFFIC FORECASTING FOR SPARSE RURAL TELEPHONE NETWORKS.
Farr, J.P.
Waldron, E.H.J.
ATR, Australian Telecommunication Research, 1984, 18 (01): : 59 - 65
[32] COMPUTER AIDED PLANNING OF RURAL AREA TELEPHONE NETWORKS.
Hansen, I.
Knutsen, K.M.
Caballero, P.A.
Sole, J.
1978, 53 (02): : 165 - 172
[33] HIGH-CAPACITY PCM TRANSMISSION-SYSTEMS FOR TOLL NETWORKS
COLLIER, ME
IEEE TRANSACTIONS ON COMMUNICATIONS, 1974, CO22 (11) : 1881 - 1885
[34] EFFECT OF DIGITAL (PCM) TECHNOLOGY ON THE DEVELOPMENT OF LOCAL DISTRIBUTION NETWORKS.
Skey, P.L.
AIAA Paper, 1600, : 40 - 45
[35] INTRODUCTION TO INTEGRATED SERVICES DIGITAL NETWORKS.
Robin, G.
Treves, S.R.
Electrical communication, 1981, 56 (01): : 4 - 16
[36] SYNCHRONIZATION IN PCM TRANSMISSION SYSTEMS
HABERLE, H
NACHRICHTENTECHNISCHE ZEITSCHRIFT, 1969, 22 (11): : 628 - &
[37] OPTIMAL DESIGN OF GAS TRANSMISSION NETWORKS.
Edgar, Thomas F.
Himmelblau, David M.
Bickel, Thomas C.
1978, 18 (02): : 96 - 104
[38] TRENDS IN THE DEVELOPMENT OF TELEVISION TRANSMISSION NETWORKS.
Krivosheyev, M.I.
Shamshin, V.A.
Telecommunications and Radio Engineering (English translation of Elektrosvyaz and Radiotekhnika), 1974, 28-29 (01): : 1 - 5
[39] Design considerations for transmission systems in optical metropolitan networks
El-Bawab, TS
Kim, H
Tamil, LS
OPTICAL FIBER TECHNOLOGY, 2000, 6 (03) : 213 - 229
[40] A COMPARISON OF TELEPHONE SIGNAL MODELS FOR EVALUATING DISTORTIONS IN A STANDARD DIGITAL TRANSMISSION-SYSTEMS CODER WITH PCM
RETI, D
TELECOMMUNICATIONS AND RADIO ENGINEERING, 1989, 44 (01) : 11 - 13

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