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    • 5. 发明专利
    • (N+1) SWITCHING SYSTEM
    • JPH08163004A
    • 1996-06-21
    • JP30525794
    • 1994-12-09
    • FUJITSU LTDNIPPON TELEGRAPH & TELEPHONE
    • OHARA TOSHIOTOKUHARA TOSHIKOWANI KAZUOOI TAMOTSU
    • G06F11/20H04B1/74
    • PURPOSE: To maintain communication via a communication channel to the utmost even when a fault takes place in a communication equipment in a (N+1) switching system in the communication equipment. CONSTITUTION: In the communication wavelength provided with plural communication channel accommodation sections 200, one set of standby communication channel accommodation section 200-S, a line concentration section 300, a standby channel switching section 400, and a control section 500, the standby communication channel accommodation section and the control section are respectively provided with switching command means 401, 501 sending an active/standby setting command signal to a channel accommodation section being an object of switching and the standby communication channel accommodation section when an optional communication channel accommodation section is switched from a standby communication channel accommodation, and each communication channel accommodation section 200 and the standby communication channel accommodation section 200-S are respectively provided with a switching discrimination means 201 which discriminates transition of active/standby channel when the active/standby setting command signals from each switching command means both command the transfer of the active/standby system and discriminates setting of the active/standby system when any of each active/standby setting command signal is received.
    • 6. 发明专利
    • CONTROL SYSTEM FOR RAISING ALARM
    • JPH0869592A
    • 1996-03-12
    • JP20486594
    • 1994-08-30
    • FUJITSU LTDNIPPON TELEGRAPH & TELEPHONE
    • HIROSE SATOSHISASAKI YUZOOI TAMOTSU
    • G08B29/18H04M3/22
    • PURPOSE: To economically and surely prevent the transient alarm from being raised accompanying hot-line insertion/extraction of a package in the control system for raising an alarm in electronic device. CONSTITUTION: This system is provided for the electronic device, which consists of a package 200 provided with an abnormality detection means 201 which reports abnormality detection to an alarm monitor means 300 at the time of detecting the abnormality in the operation state of an internal circuit, and is provided with a package insertion detecting means 202 which detects the completion of package insertion, a package extraction detecting means 203 which detects the start of extraction, a stable operation state detecting means 205 which detects that the operation of the internal circuit is stabilized after the completion of insertion into the electronic device, and an availability report means 206 which reports the availability of abnormality report until the detection of the start of package extraction after the detection of the completion of package insertion and the stable operation state of the internal circuit.