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Title:
DIGITAL SIGNAL TRANSMISSION SYSTEM
Document Type and Number:
Japanese Patent JPH08321826
Kind Code:
A
Abstract:

PURPOSE: To avoid reflection, to prolong distance and to realize high speed digital transmission by forming specified pair lines which is composed of branch lines into a pair lines by means of a branch line branching filter and connecting terminating units to a terminating part and a connection end.

CONSTITUTION: The transmission system is using a half duplex transmission system. The pair lines 12a, 12b, 13a, 13b, 14a, 14b, 15a and 15b being trunk transmission lines and pair lines 16a, 16b, 17a, 17b, 18a, 18b, 19a, 19b, 20a, 20b, 21a and 21b being branch transmission lines are provided. A central control unit 1, digital signal transmission devices 2 and 3, a trunk branching filter 4, the branch line branching filters 5 and 6, trunk terminating units 8 and 9, branch line terminating units 10 and 11 and a repeater 7 are provided. The respective transmission lines are matched by the trailing end of the trunk, the connection end of the branch lines and the trunk and the terminating units loaded on the central controller 1.


Inventors:
SHINOZAKI NOBORU
KUBO SEIICHI
Application Number:
JP1995000126555
Publication Date:
December 03, 1996
Filing Date:
May 25, 1995
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H04L5/14; H04J4/00; (IPC1-7): H04L5/14; H04J4/00
Attorney, Agent or Firm:
中島 司朗