US 12,770,498 B2Granted

Fire protection system and method for synchronizing control panels and notification appliances technical field

AssigneeSiemens Industry, Inc.

InventorsLeslie A. Field, Daniel S. Iasso

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Abstract

A fire protection system synchronizes fire panels and notification appliances. A Standard Ethernet Cable couples to a first fire panel to a second fire panel. Each of the first and second fire panels is coupled to a group of fire alarm notification appliances by a notification appliance circuit. The Standard Ethernet Cable communicates first data relating to the fire alarm notification appliances between the first and second fire panels. The Standard Ethernet Cable has a connector including a center tap for communicating second data relating to the fire alarm notification appliances between the first and second fire panels.

Claims17

Dependent claims

A fire protection system for synchronizing fire panels and notification appliances comprising:

a first fire panel of the fire protection system coupled to a first plurality of fire alarm notification appliances by a first notification appliance circuit;
a second fire panel of the fire protection system coupled to a second plurality of fire alarm notification appliances by a second notification appliance circuit;
and
a Standard Ethernet Cable coupled to the first and second fire panels, the Standard Ethernet Cable communicating first data relating to the first and second pluralities of fire alarm notification appliances between the first and second fire panels as standard Ethernet data over data wire pairs of the Standard Ethernet Cable, the Standard Ethernet Cable having a connector including a center tap for communicating second data including a sync pulse relating to the first and second pluralities of fire alarm notification appliances between the first and second fire panels, wherein wires of the Standard Ethernet Cable reserved for Power over Ethernet are used as a channel for communicating the sync pulse via the center tap;
wherein the center tap of the connector is utilized for transmitting a sync pulse relating to the first and second pluralities of fire alarm notification appliances from the first fire panel to the second fire panel.

2 more elements

A method of a fire protection system for synchronizing fire panels and notification appliances, the method comprising:

coupling a first fire panel of the fire protection system to a first plurality of fire alarm notification appliances by a first notification appliance circuit;
coupling a second fire panel of the fire protection system to a second plurality of fire alarm notification appliances by a second notification appliance circuit;
coupling a Standard Ethernet Cable to the first fire panel and the second fire panel;
communicating first data relating to the first and second pluralities of fire alarm notification appliances between the first and second fire panels as standard Ethernet data over data wire pairs of the Standard Ethernet Cable;
and
communicating second data including a sync pulse relating to the first and second pluralities of fire alarm notification applications via a center tap of a connector of the Standard Ethernet Cable between the first and second fire panels, wherein wires of the Standard Ethernet Cable reserved for Power over Ethernet are used as a channel for communicating the sync pulse via the center tap;
wherein communicating the second data includes utilizing the center tap of the connector to transmit a sync pulse relating to the first and second pluralities of fire alarm notification appliances from the first fire panel to the second fire panel.

4 more elements

A non-transitory computer readable medium including executable instructions which, when executed, causes at least one processor to synchronize fire panels and notification appliances of a fire protection system by:

coupling a first fire panel of the fire protection system to a first plurality of fire alarm notification appliances by a first notification appliance circuit;
coupling a second fire panel of the fire protection system to a second plurality of fire alarm notification appliances by a second notification appliance circuit;
coupling a Standard Ethernet Cable to the first fire panel and the second fire panel;
communicating first data relating to the first and second pluralities of fire alarm notification appliances between the first and second fire panels as standard Ethernet data over data wire pairs of the Standard Ethernet Cable;
and
communicating second data including a sync pulse relating to the first and second pluralities of fire alarm notification applications via a center tap of a connector of the Standard Ethernet Cable between the first and second fire panels, wherein wires of the Standard Ethernet Cable reserved for Power over Ethernet are used as a channel for communicating the sync pulse via the center tap;
wherein communicating the second data includes utilizing the center tap of the connector to transmit a sync pulse relating to the first and second pluralities of fire alarm notification appliances from the first fire panel to the second fire panel.

4 more elements

Dependencies are inferred from the claim text.