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� � _ . _ :_ � � <br /> _ , �:� .. _.� <br /> ► <br /> 4. CIRCUITS AND PATHWAYS . ! <br /> � �9 <br /> 4.1 Signaling Line Pathways - <br /> � � -- <br /> 4.1.1 �Pathways Class Designations and Survivability - <br /> Pathwl ys class: _ ,��___ _ _ Survivability level: Quantity• <br /> (See]�i PA 72,Sections 12.3 and 12.4) ----- ---- ------- --�--------- <br /> 4.1.2 Engine-Driven Generator <br /> Quantill• Description. , <br /> 4.1.3 Device Power Pathways � " <br /> ❑No ll eparate power pathways from the signaling line pathway , <br /> �4 Power pathways are separate but of the same pathway classificahon as the signahng hne pathway <br /> ❑Po ier pathways are separate and different classification from the signaling line pathway <br /> 4.1.4 �solation Modules � <br /> Quantity: ___ _ - <br /> ----- -------- - --------- ----------- ------------- ----------- <br /> 4.2 A1 i rm Initiating Device Pathways ` , <br /> 4.2.1 Iathways.Class Designations and Survivability - <br /> '� y ,; �,/ ,; <br /> Pathwa�s class. ______� _ Survivability level: - � , Quantity: '_ _ _ �, <br /> _ __ -- ------- ---- - ------ <br /> (See NFPA 72, Sectioizs 12.3 nnd 12.4) ' <br /> 4.2.2 Iath�vays•Utilizing Two or More Media - _ ,' <br /> Quantit,y• Descri tion: � ' <br /> __-------..__._._._. __._. <br /> ---------- ----------_._ ;. .----------- -------- -----._...--- <br /> 4.2.3 IDevice Power Pathways � - � .' i <br /> ❑No sl parate power pathways from the initiating device pathway _ - � ! <br /> l�Pow�r pathways are separate but of the same pathway classification as the inrtiating device pathway <br /> ❑Pow I r pathways are separate and different classification from the initiating dev'ice pathway � <br /> 4.3 NmI-Voice Audible System Pathways <br /> 4.3.1 PI thways Class Designat'ns and Survivability - � <br /> - Pathwa}is class: Survivability level: Quantity: < <br /> ----- — ---- ---.. .---- -----. ._.. .--- ----------- ------- <br /> (See NF�A 72,Sections� arzd 12.4) " <br /> 4.3.2 Pathways Utilizing Two or More Media <br /> i <br /> Quantit}: � Description. � <br /> 4.3.3 DI vice Power Pathways ! <br /> ❑No s Iparate power patliways from the no f cation appliance pathway <br /> ❑Powe pathways are separate but of tll�same pathway classification as the notification appliance pathway <br /> ❑Powe�pathways are separate and '�erent classification from the notification appliance pathway <br /> I <br /> , . NFPA 72; Fig. 1{�:182.1.1 (p 3 of 12) <br /> Copyright O 2009 National Fire Protection Association;for individual use,not to be commercially produced or distributed. <br /> i . <br /> � � <br /> _ '�� <br />