Apparatus for Signaling Different Notification Appliance Circuit Configurations

• US 20100265080A1
• Filed: 06/24/2009
• Published: 10/21/2010
• Est. Priority Date: 02/08/2008
• Status: Active Grant

• Current Assignee: Siemens Industry Incorporated (Siemens AG)
• Original Assignee: Siemens Industry Incorporated (Siemens AG)
• Inventors: Henson, James C.
• Granted Patent: US 8,477,042 B2
• Time in Patent Office: Days
• US Class Current: 340/657
• CPC Class Codes: G08B 25/04 using a single signalling line, e.g. in a closed loop

Abstract

An arrangement for use in a safety notification system includes first, second, third and four outputs configurable for first and second wiring configurations of notification appliance circuits. The arrangement also includes a configurable terminal arrangement having first and second configurations corresponding to the first and second wiring configurations, and an end-of-line resistor. The configurable terminal arrangement in the first configuration couples the end-of-line resistor between the third and fourth outputs. The configurable terminal arrangement in the second configuration decouples the end-of-line resistor from the third and fourth outputs.

Claims

1. An arrangement for use in a safety notification system, comprising:

first, second, third and four outputs configurable for first and second wiring configurations of notification appliance circuits;

a configurable terminal arrangement having first and second configurations corresponding to the first and second wiring configurations;

an end-of-line resistor; and

wherein the configurable terminal arrangement in the first configuration couples the end-of-line resistor between the third and fourth outputs, and wherein the configurable terminal arrangement in the second configuration decouples the end-of-line resistor from the third and fourth outputs.

2. The arrangement of claim 1, wherein the configurable terminal arrangement in the first configuration further couples the fourth output to ground via a semiconductor device.

3. The arrangement of claim 2, wherein the semiconductor device is a diode.

4. The arrangement of claim 2, wherein the semiconductor device is a MOSFET transistor.

5. The arrangement of claim 1, wherein the end-of-line resistor is coupled on a first side to ground via a semiconductor device, and operably coupled on a second end to a power switching device.

6. The arrangement of claim 1, wherein the first side of the end-of-line resistor is coupled to the configurable terminal arrangement.

7. An arrangement for use in a safety notification system, comprising:

first, second, third and four circuit outputs configurable for first and second wiring configurations of notification appliance circuits;

a configurable terminal arrangement having at least a first configurable terminal and a second configurable terminal, the first configurable terminal having a first terminal operably coupled to a source of first notification signals, the second terminal configured to be operably coupled to a source of second notifications signals, and a third output operably coupled to the third circuit output, the second configurable terminal having a first terminal, a second terminal operably coupled to ground, and a third terminal operably coupled to the fourth circuit output;

an end-of-line resistor operably coupled between the first output of the first configurable terminal and the first output of the second configurable terminal.

8. The arrangement of claim 7, wherein the configurable terminal arrangement in the first configuration couples the end-of-line resistor between the third and fourth circuit outputs, and wherein the configurable terminal arrangement in the second configuration decouples the end-of-line resistor from the third and fourth circuit outputs.

9. The arrangement of claim 7, wherein the configurable terminal arrangement in the first configuration further couples the fourth output to ground via a semiconductor device.

10. The arrangement of claim 9, wherein the semiconductor device is a diode.

11. The arrangement of claim 9, wherein the semiconductor device is a MOSFET transistor.

12. The arrangement of claim 7, wherein the first configurable terminal is selectively and alternatively configurable to connect the first output to the third output and to connect the second output to the third output.

13. The arrangement of claim 12, wherein the second configurable terminal is selectively and alternatively configurable to connect the first output to the third output and to connect the second output to the third output.

14. The arrangement of claim 7, wherein the source of first notification signals is operably coupled to the first circuit output.

15. The arrangement of claim 14, wherein the second circuit output is connected to ground.

16. The arrangement of claim 8, wherein the source of first notification signals is operably coupled to the first circuit output, and wherein the second circuit output is connected to ground.