Title:
LOOP-TYPE DATA TRANSMISSION SYSTEM
Document Type and Number:
Japanese Patent JPS5252503
Kind Code:
A
Abstract:
PURPOSE: The double loop common transmission line is provided in order to perform diagnosis of fault terminal station in on-line state. Thus, a highly dependable system is obtained.
Inventors:
OKADA MASAKAZU
MATSUMOTO HIROSHI
IDE TOSHIKI
MATSUMOTO HIROSHI
IDE TOSHIKI
Application Number:
JP12838675A
Publication Date:
April 27, 1977
Filing Date:
October 27, 1975
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H04L69/40; G06F13/00; H04L12/437; (IPC1-7): G06F3/04; H04B1/00; H04L11/00; H04L13/00