both the main panel and the common signal device at the remote repeater cabinet. The trouble signal is silencedby operating the "SILENCE" switch, which will silence the panel trouble buzzer. The "TROUBLE SILENCE"switch on the repeater cabinet will silence the common signal device at the repeater cabinet. Both these areprovided with ringback. After elimination of trouble, the trouble buzzer will sound until the "SILENCE" switch isreturned to normal.7.14PowerSuppliesThe KMSD System employs dual redundant power supplies. If the output voltage of Power Supply No. 1 fallsbelow 85% of nominal, or if the input or output fuse to Power Supply No. 1 fails, the panel automatically switchesto Power Supply No. 2.Failure of Power Supply No. 1 or any of its components or fuses results in illumination of the front panel LED,Power Supply No. 1 and a common trouble signal, which sounds the common trouble buzzer in both the detectorcabinet and common signal device at the remote repeater cabinet.The trouble buzzer is silenced by operating the "SILENCE" switch on the control cabinet and the common signaldevice may be silenced by the "trouble silence switch" at the remote repeater unit. Ringback is provided whenthe trouble condition is cleared. The trouble buzzer will resound until the "TROUBLE SILENCE" switch is restoredto the normal position.Off-normal position of the "TROUBLE SILENCE" switch is indicated by a trouble silence light, which appearsabove the "TROUBLE SILENCE" switch.Power failure alarm is operated by:a.Failure of ship's power. Should the AC power appearing on Power Supply No. 1 fail for any reason, includingthe failure of fuse 1, the power failure alarm will sound.Power failure alarm is indicated by illumination of the power failure lamp and energizing of the trouble buzzer,at the detector cabinet and the common signal device at the remote repeater cabinet.The power failure audible signal is silenced by operating the power failure alarm silence switch. Operatingthis switch illuminates the power failure silence lamp. If power is restored while the "POWER FAILURESILENCE" switch is in the "SILENCE" position, the trouble buzzer will resound (ringback).7-10
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
