Data Sheet for Product

Distributed Power Supply − NAC Extender (Model PAD-4 series) 3363
s Industry, Inc.
Building Technologies Division
s
Data Sheet
Fire Safety Products
FACP Accessories
PAD-4 Distributed Power Supply Unit [for UL markets]
Notification Appliance Circuit Extender
Models PAD-4-ENCL, PAD-4-MB (with FP2011-U1, FP2012-U1 power supplies)
Product Overview
Used with Siemens − Fire Safety fire alarm control
panels (FACPs), the Distributed Power Supply PAD-4
Unit is a NAC expander with a built-in, auxiliary-
power output. Each PAD-4 unit distributes
additional power in buildings for audible and visual
indicators that conform to the Americans with
Disabilities Act (ADA). PAD-4 also has the
following features:
 NACs
 Signal-input circuits
 Battery-charging circuit
 Trouble relays for remote monitoring
 Diagnostic light-emitting diodes (LEDs)
 Alternating Current (AC) power connection
The Siemens NACs, which connect with alarm
signaling devices, have been designed to provide
the highest level of reliability and performance.
Signal coding on the circuits is accomplished
through integrated circuits (rather than relays),
which eliminates mechanical wear on the output
circuits.
The PAD-4 unit provides constant 24VDC output
voltage to each NAC
− independent of voltage
fluctuations on the primary or secondary power
source. As a result, a larger voltage drop and a
greater wire length for each NAC are supported by
each PAD-4.
Specifications
This version of the Siemens Distributed Power Supply
Unit can be configured in the following manner that
makes the outputs easily programmable:
 ‘STEADY’ outputs
 Synchronized strobe outputs
 American National Standards
Institute (ANSI) Temporal 3
 ANSI Temporal 4 [for carbon monoxide (CO) alarm signal]
There are also two (2) inputs used to control the
activation of the four (4) outputs. Programming can
be set so one (1) input will silence the audible signal
on Siemens Models ‘AS’-series, ‘NS’-series, or ‘ZH’-
series horn and horn-strobes while the strobes
remain active.
ARCHITECT AND ENGINEER SPECIFICATIONS
•
Multi-module mounting in System 3™ enclosures
 Multiple modules share battery set
• ADA Compliant
• UL 864 9
th
Edition Listed, UL 1481 Listed;
FM (
#
3010), CSFM (
#
7315-0067:0268) Approved
`
Class A’
Adapter Card
[Model PAD-4-CLSA]
Main Board
[Model PAD-4-MB]
Unit Enclosure
[Model PAD-4-ENCL]
•
Four (4) ‘Class B’, power-limited notification appliance circuits (NACs)
• `Class A’, field-selectable wiring
 Each unit can support an optional module (Model PAD-4-CLSA) that
converts two (2) built-in ‘Class A’ NACs into four (4) ‘Class A’ NACs
• Up to 3 Amps of auxiliary-power output
• Optional built-in strobe synchronization
 Supports coded audible signals, including Temporal 3, Temporal 4 patterns
• Battery supervision and control
• ‘Form C’ general Trouble / AC Fail monitoring contact
• Power supplies support NAC power
 Up to 6A used with Model FP2011-U1
 Up to 9A used with Model FP2012-U1
• 24VDC output voltage
• Ground-fault detection
• Advanced microprocessor control
• Uses Flash memory-based system firmware
 Optional system-diagnostic and firmware-upgrade tool