| 摘要 |
An improved life safety system (100) provides ability to detect a catastrophic failure within a network node (170) of the life safety system, and to subsequently pass a failsafe alarm signal (1002) through the network node, and through the life safety system, despite the catastrophic failure, which may be a failed main processor (301) of a main panel (110), a failed main processor (401) of a loop expander module (120), a failed main processor (501) of an amplifier (130), or a failed main processor (601) of a liquid crystal display controller (602). |
