Addressable devices with interface modules having electrically readable addresses

• US 5,818,334 A
• Filed: 02/03/1995
• Issued: 10/06/1998
• Est. Priority Date: 02/03/1995
• Status: Expired due to Term

• Current Assignee: Tyco Fire & Security GmbH (Johnson Controls International plc)
• Original Assignee: Simplex Time Recorder Company (Johnson Controls International plc)
• Inventors: Stanley, Lawrence G.
• Primary Examiner(s): Hofsass, Jeffery
• Assistant Examiner(s): POPE, DARYL C
• Application Number:
  US08/383,069
• Time in Patent Office: 1,341 Days
• Field of Search: 340/505, 340/506, 340/514, 340/524, 340/535, 340/825.06, 340/825.07, 340/825.08, 340/539
• US Class Current: 340/505
• CPC Class Codes: G08B 26/001 with individual interrogation of substations connected in parallel

Abstract

In a communication system such as a fire detection system, individual addressable devices determine their addresses from address interface modules at the device locations. An interface module includes wire connectors for receiving system wires and a device connector. The interface module also includes jumper wires which serve as a readable address identifier adapted to be programmed to an address with installation of the module and to be subsequently read by the addressable device.

Claims

1. A communication network comprising:

a system controller;

system lines connecting the system controller for communication with addressable devices;

interface modules associated with respective one of said addressable devices, each interface module comprising line connectors for connecting to the system lines and an electrically readable address identifier adapted to be programmed to an address with installation of the interface module;

said addressable devices, each connected to an interface module to connect to the system lines and to the electrically readable address identifier, each addressable device including electronics for reading an address from the readable address identifier and for responding to the controller with receipt of the address through the system lines; and

mounting bases, each for mounting a respective one of said addressable devices over an electrical box and having an opening through which an interface module wired in the electrical box may pass for connection to said addressable device.

2. A system as claimed in claim 1 wherein the readable address identifier comprises breakable conductors.

3. A system as claimed in claim 1 wherein the readable address identifier comprises a set of switches.

4. A system as claimed in claim 1 wherein each interface module comprises a printed circuit board connector for connection to the addressable device and wire connectors for connecting to the system lines.

5. A system as claimed in claim 1 wherein the addressable device is a detector.

6. A system as claimed in claim 5 wherein the detector is a fire detector.

7. A system as claimed in claim 6 wherein the readable address identifier comprises breakable conductors.

8. A system as claimed in claim 7 wherein each interface module comprises a printed circuit board connector for connection to the addressable device and wire connectors for connecting the system lines.

9. An addressable device assembly comprising:

an interface module which includes a first connector and an electrically readable address identifier to be programmed to an address;

a mounting base for mounting an electronic device over an electrical box and having an opening through which the first connector wired in the electrical box may pass; and

an addressable electronic device, the electronic device comprising a second connector for receiving the first connector through the mounting base opening to receive address lines and system signal lines prior to mounting to the mounting base, the electronic device including electronics for reading the device address from the readable address identifier through the address lines and for responding to a remote controller with receipt of the address through the system lines.

10. An addressable device as claimed in claim 9 wherein the addressable electronic device is a detector.

11. An addressable device assembly as claimed in claim 10 wherein the addressable electronic device is a fire detector.

12. An addressable device assembly as claimed in claim 9 wherein the readable address identifier comprises breakable conductors.

13. An addressable device assembly as claimed in claim 12 wherein the interface module comprises a printed circuit board and the first connector and second connector are printed circuit board connectors.

14. A method of addressing an addressable device connected to system lines comprising:

programming an address in an electrically readable address identifier in an interface module;

wiring the interface module to system wires leading into an electrical box;

mounting a mounting base over the electrical box;

connecting the addressable device to the programmed interface module to provide electrical connection from the addressable device to the readable address identifier and the system lines, and thereafter mounting the addressable device to the mounting base;

reading the address from the readable address identifier to the addressable device; and

addressing the addressable device from a remote controller through the system lines using the address read from the readable address identifier.

15. A method as claimed in claim 14 wherein the readable address identifier comprises breakable conductors.

16. A method as claimed in claim 14 wherein the readable address identifier comprises a set of switches.

17. A method as claimed in claim 14 wherein the interface module comprises a printed circuit board connector for connection to the addressable device and wire connectors for receiving the system lines.

18. A method as claimed in claim 14 wherein the addressable device is a detector.

19. A method as claimed in claim 18 wherein the detector is a fire detector.