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51 EM ENS �ata sheet <br /> Fire Safety&Security Products <br /> FACP Accessories <br /> PAD-4 Distributed Power Supply Unit <br /> Notification Appliance Circuit Extender <br /> Models PAD-4-ENCL, PAD-4-MB (with FP2011-U1, FP2012-U1 power supplies) <br /> ARCHITECT AND ENGINEER SPECIFICATIONS <br /> • Four(4)'Class B',power-limited notification appliance circuits(NACs) � <br /> • 'Class A',field-selectable wiring <br /> • Each unit can support an optional module(Model PAD-4{LSA)that <br /> converts two(2)built-in'Class A'NACs into four(4)'Class A'NACs 'CI855 A' <br /> • Up to 3 Amps of auxiliary-power output Adapter Card <br /> • Optional built-in strobe synchronization [ModeIPAD4CLSA] <br /> • Supports coded audible signals,including Temporal 3,Temporal 4 patterns <br /> • Battery supervision and control <br /> • 'Form C'general Trouble/AC Fail monitoring contact <br /> • Power supplies support NAC power Main Board Unit Enclosure <br /> • Up to 6A used with Model FP2011-U1 [Model PAD-4-MB] [Model PAD-4-ENCL] <br /> ■ U to 9A used with Model FP2012-U 1 <br /> • 24VDC output voltage • Multi-module mounting in System 3TM'enclosures <br /> • Ground-fault detection • Multiple modules share battery set <br /> • Advanced microprocessor control <br /> • ADA Compliant <br /> • Uses Flash memory-based system firmware • mUL 864 9th Edition Listed; <br /> • Optional system-diagnostic and firmware-upgrade tool �IJL 1481 Listed(for power supplies) <br /> Product Overview <br /> Used with Siemens—Fire Safety fire alarm control The PAD-4 unit provides consistent 24VDC output <br /> panels(FACPs),the Distributed Power Supply PAD-4 voltage to each NAC—independent of voltage <br /> Unit is a NAC expander with a built-in,auxiliary- fluctuations on the primary or secondary power <br /> power output. Each PAD-4 unit distributes source. As a result,a larger voltage drop and a <br /> additional power in buildings for audible and visual greater wire length for each NAC are supported by <br /> indicators that conform to the Americans with each PAD-4. <br /> Disabilities Act(ADA). PAD-4 also has the following <br /> features: Specifications <br /> • NACs This version of the Siemens Distributed Power Supply <br /> • Signal-input circuits Unit can be configured in the following manner that <br /> • Battery-charging circuit makes the outputs easily programmable: <br /> • Trouble relays for remote monitoring <br /> • Diagnostic light-emitting diodes(LEDs) • 'STEADY'outputs <br /> • Synchronized strobe outputs <br /> • Alternating Current(AC)power connection . American National Standards Institute(ANSn Temporal 3 <br /> The Siemens NACs,which connect with alarm • ANSi Temporal 4[for carbon monoxide(CO)alarm signal] <br /> signaling devices, have been designed to provide There are also two(2)inputs used to control the <br /> the highest level of reliability and performance. activation of the four(4)outputs. Programming can <br /> Signal coding on the circuits is accomplished be set so one(1) input will silence the audible signal <br /> through integrated circuits(rather than relays), on Siemens Models'AS'-series,'NS'-series,or'ZH'- <br /> which eliminates mechanical wear on the output series horn and horn-strobes while the strobes <br /> circuits. remain active. <br /> Distributed Power Supply—NAC Extender(Model PAD-4 series) 3363 <br /> SIEMENS Industry,Inc. <br /> Building Technologies Division <br />