TERMINAL ARRANGEMENTS

被引：2

作者：

ALBERT, WG

EVANS, JB

HALEY, TJ

MERRICK, TB

SIMMONDS, TH

机构：

来源：

BELL SYSTEM TECHNICAL JOURNAL | 1969年 / 48卷 / 04期

关键词：

D O I：

10.1002/j.1538-7305.1969.tb04258.x

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

New terminal equipment has been developed to provide the six‐mastergroup signal that the L‐4 repeatered line is capable of carrying. A major component of this equipment is the MMX‐2 mastergroup multiplex, which translates six basic 600‐channel mastergroups to their line ‐frequency as‐signments in the range 0.564 to 17.548 MHz. Another component is the line connecting equipment, which contributes to shaping the line signal frequency characteristic and provides for blocking mastergroups. The purpose of this blocking is to provide dropping and branching with recovery of the spectrum for transmission of other mastergroups. Mastergroup connectors are available for flexible interconnection of basic mastergroups without demodulation to supergroups. Finally, existing line protection switching equipment has been modified for use with the L‐4 Coaxial System. © 1969 The Bell System Technical Journal

引用

页码：993 / +

共 8 条

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