Title:
WIRING CHECK SYSTEM FOR COMMUNICATION EQUIPMENT
Document Type and Number:
Japanese Patent JPH04269036
Kind Code:
A
Abstract:
PURPOSE: To easily find out a wiring error and to confirm a wiring error even at the point of time of installation.
CONSTITUTION: A function to set a wiring check mode to output a voltage signal for wiring check to a communication line L is provided to a master station A. A slave station B is provided with a light emitting diode LD1 lighted through the reception of the voltage signal fed to the communication line L. When the slave station B is connected to the communication line L in the correct polarity, the light emitting diode LD1 is lighted to indicate it that there is no wiring error.
Inventors:
MASUO YASUHISA
Application Number:
JP3038091A
Publication Date:
September 25, 1992
Filing Date:
February 25, 1991
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
H04B3/46; H04L12/28; H04Q1/20; (IPC1-7): H04B3/46; H04L12/28; H04Q1/20
Attorney, Agent or Firm:
Ishida Chochichi (2 outside)