Interface between fire panel and elevator controller

摘要

A system and method for logically disconnecting fire alarm equipment from elevator control equipment to enable independent testing of each equipment set. The system and method may include an interface having a fire alarm equipment side and an elevator control side which are interconnected by a plurality of relays. A plurality of action relays may be associated with specific functions of the elevator controller. A plurality of bypass relays are interposed between the action relays and the elevator controller so that when a “bypass” operation is initiated, the bypass relays prevent signals from the action relays from reaching the elevator controller. As such, the action relays can be tested without impacting ongoing elevator operations. In addition, the logical disconnection arrangement ensures proper functioning of the system once testing is completed.

主权项

1. An interface for connecting a fire alarm panel to an elevator controller, comprising:
an interface coupled to a fire alarm panel and an elevator controller, the interface having an action relay and a bypass relay; the action relay configured to transmit a signal to the elevator controller in response to a signal from the fire alarm panel; and the bypass relay configured for selective electrical coupling between the action relay and the elevator controller; wherein the interface has a normal operating configuration and a bypass configuration, wherein in the normal operating condition the action relay is capable of transmitting a signal to the elevator controller in response to a signal from the fire alarm panel, and wherein in the bypass configuration the bypass relay is electrically coupled between the action relay and the elevator controller such that signals from the action relay are transmitted to the bypass relay and are not transmitted to the elevator controller.