TRANSMISSION LINE SWITCHING SYSTEM

摘要: PURPOSE:To attain the confirming action of transmission line switching in respective terminal stations even when an exclusive circuit is not used between by comparing a bridge request signal from one station with result generated receiving and only they are coincident, generating confirmation signal. CONSTITUTION:A fault detecting 11 1 requesting active to preliminary P at termination 2 side indicating control 14 bridge-controls 15. Then, these both signals compared coincidence 20 generated. Thus, received through line, itself can perform confirmation.