Title:
DATA WAY SYSTEM
Document Type and Number:
Japanese Patent JPS5621442
Kind Code:
A
Abstract:
PURPOSE: To reduce the cost and improve the packing density, by adding highclass trasmission and receiving parts for long distance relaying only to both stations which are distant a long distance from each other respectively.
CONSTITUTION: Plural station basic parts 11 are equipped with two pairs of simple transmission and receiving circuits (12r, 12s) (13r, and 13s) consisting of TTLs and station control part (7a) respectively and are connected by two line loops. Repeater 14 has a pair of highclass transmission and receiving parts (15r and 15s) where long distance unrelayed transmission is possible, and a pair of TTL transmission and receiving circuits (16r and 16s) and is added to only distant stations respectively.
Inventors:
KONISHI KUNIYOSHI
Application Number:
JP9669679A
Publication Date:
February 27, 1981
Filing Date:
July 31, 1979
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
G06F13/00; H04L12/42; (IPC1-7): G06F3/04; H04L11/00