UL s Perspective on IP Signaling Larry Shudak Principal Engineer Signaling and Security Control Equipment Underwriters Laboratories Inc.

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1 UL s Perspective on IP Signaling Larry Shudak Principal Engineer Signaling and Security Control Equipment Underwriters Laboratories Inc Underwriters Laboratories Inc.

2 Transmission methods Historically, the requirements for offpremises signaling in the National Fire Alarm and Signaling Code, NFPA 72, were based upon each specific technology.

3 Examples of transmission methods with technology specific operational requirements: Digital Alarm Communication Systems - e. g. DACT/DACR Two-Way Private Radio Alarm Systems One-Way Private Radio Alarm Systems Direct Connect - e.g. Reverse Polarity Active Multiplex - e. g. Derived Channel

4 NFPA Added Other Transmission Technologies What are Other Transmission Technologies? Any transmission technology for which NFPA 72 (or UL 864) does not include technology specific requirements. 4

5 Requirements for Other Transmission Technologies NFPA Monitor integrity of the transmission technology and its communication path Failures annunciated at the supervising station with 5 minutes Annunciation at the protected premises if communication cannot be established with the supervising station. Redundant path required to be provided where portion of the path not monitored Redundant path to be monitored for integrity 5

6 Requirements for Other Transmission Technologies NFPA Failure of both primary and secondary path to be annunciated at the supervising station within 24 hours. Service provider diversity End to end communication not exceed 90 seconds Signal error and detection Signal priority fire top priority in shared networks Throughput probability 6

7 Requirements for Other Transmission Technologies NFPA Shared communications equipment on premises Listed for purpose. Supervising station and system loading: System units restored to service within 30 minutes of a failure Max 3000 transmitters per transmission channel Max 512 per single system receiver 7

8 Requirements for Other Transmission Technologies NFPA Signal priority Exception: maximum duration not to exceed 90 seconds 8

9 Requirements for Other Transmission Technologies NFPA Service provider diversity Both paths private, or Public: different than primary communications service provider 9

10 Requirements for Other Transmission Technologies NFPA Monitoring for integrity of the communication path(s) Single technology - 5 minutes - SS Multiple technologies - 24 hours for each technology - SS and protected premise Exception: Specific technology requirements 10

11 Requirements for Other Transmission Technologies NFPA Service Provider Diversity - Removed Signal priority Removed Shared communications equipment on premises Listed Secondary Power Per (Fire Alarm Equipment) Throughput Removed 11

12 Other Transmission Technologies Security None required at this time by either UL Standard 864 or the National Fire Alarm and Signaling Code, NFPA 72. MNS Minimum level of encryption 12

13 Other Transmission Technologies Examples: Internet (broadband) - Land based - Cellular/wireless 13

14 Other Transmission Technologies Examples of typical systems utilizing IP transmission technologies 14

15 Other Transmission Technologies 15

16 Other Transmission Technologies 16

17 Other Transmission Technologies 17

18 Other Transmission Technologies 18

19 Other Transmission Technologies 19

20 Other Transmission Technologies 20

21 Other Transmission Technologies Assess inter-equipment compatibility Interoperability (end-to-end) Compatibility Electrical Functional Monitoring for integrity FACP to transmitter Transmitter to FACP Transmitter to fire alarm receiver 21

22 Other Transmission Technologies 22

23 Other Transmission Technologies 23

24 Digital Alarm Communication (DAC) and IP integration 24

25 Digital Alarm Communication (DAC) Digital Alarm Communication (DAC) through Digital Alarm Communication Transmitters (DACTs) to Digital Alarm Communication Receivers (DACRs) 25

26 Digital Alarm Communication 26

27 Historic Telephone Network 27

28 Digital Alarm Communication (DAC) Additions to NFPA Public Switched Telephone Network. An assembly of communications equipment and telephone service providers that utilize managed facilities-based voice networks (MFVN) to provide the general public with the ability to establish communications channels via discrete dialing codes. 28

29 Digital Alarm Communication (DAC) Additions to NFPA Managed Facilities-Based Voice Network (MFVN). A physical facilities-based network capable of transmitting real time signals with formats unchanged that is managed, operated, and maintained by the service provider to ensure service quality and reliability from the subscriber location to public switched telephone network (PSTN) interconnection points or other MFVN peer networks. 29

30 Managed Facilities Voice Network Loop start telephone circuit service interface Pathway reliability via proactive management, operation, and maintenance by the MFVN provider 8 hours of standby power supply capacity for MFVN communications equipment either located at the protected premises or field deployed 24 hours of standby capacity at the central office Installation of network equipment at the protected premise with safeguards to prevent unauthorized access to the equipment or its connections. 30

31 Managed Facilities Based Voice Network 31

32 Managed Facilities Based Voice Network 32

33 Non-facilities Based VoIP 33

34 Digital Alarm Communication (DAC) Summary: Three types of DAC Conversion to OTT with UL Listed FIRE ALARM EQUIPMENT transmitter Managed Facilities Voice Network based Non-facilities based 34

35 Future Changes????? Path vs technology ISP routine maintenance Standby power and monitoring for integrity Telephone line/number no longer permitted for 2 nd path for DACT 35

36 Questions 2011 Underwriters Laboratories Inc.

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