Ansul AutoPulse Z-28 Ext User manual

AUTOPULSE Z-28 Ext
Installation Instructions
©2002 TEPG-US. All specifications and other information were current as of publication and are subject to change without notice.
Part No. 579-427
Doc. No. 431308
Rev. A
SLCnetNotification Appliance Circuit (NAC) Extender, Part No. 430674 (120VAC) or Part No.
430675 (220/240VAC) is a self-contained adjunct panel for use with an AUTOPULSE Z-28
Releasing Panel. The base version of the NACext is a single-board system consisting of four
NACs, a power supply and charger, an SLCnet slave interface, and two conventional NAC inputs
for hardwired control (not applicable to the NACext when used as an SLCnet device). Option
cards are available to provide the following additional capabilities:
• Class A Adapter Option Card, Part No. 430677 -- allows fault tolerance in the case of open circuit
wiring faults on the NACs.
• NAC Option Card, Part No. 430676 -- adds four conventional Notification Appliance Circuits.
Upon unpacking your Ansul product, inspect the contents of the carton for shipping damage. If
damage is apparent, immediately file a claim with the carrier and notify your distributor.
This publication discusses the following topics:
Topic See Page #
Cautions and Warnings 2
Overview 3
Identifying Optional Equipment 7
Configuring and Wiring SLCnet Operation 9
Hardwired Operation -- Conventional A/Vs 11
System Installation 16
SLCnet and AVsync are trademarks of Tyco International Services AG or its affiliates.
Introduction
Inspecting Contents
of Shipment
In this Publication

2
READ AND SAVE THESE INSTRUCTIONS. Follow the instructions in this installation
manual. These instructions must be followed to avoid damage to this product and associated
equipment. Product operation and reliability depends upon proper installation.
DO NOT INSTALL ANY ANSUL PRODUCT THAT APPEARS DAMAGED. Upon
unpacking your Ansul product, inspect the contents of the carton for shipping damage. If damage
is apparent, immediately file a claim with the carrier and notify your distributor.
ELECTRICAL HAZARD - Disconnect electrical field power when making any internal
adjustments or repairs. Servicing should be performed by qualified Ansul Representatives.
STATIC HAZARD - Static electricity can damage components. Therefore, handle as follows:
• Ground yourself before opening or installing components (use Static Control Kit, Part No.
431231).
• Prior to installation, keep components wrapped in anti-static material at all times.
RADIO FREQUENCY ENERGY - This equipment generates, uses, and can radiate radio
frequency energy and if not installed and used in accordance with the instruction manual, may
cause interference to radio communications. It has been tested and found to comply with the
limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are
designed to provide reasonable protection against such interference when operated in a
commercial environment. Operation of this equipment in a residential area may cause interference
in which case the user at his own expense will be required to take whatever measures may be
required to correct the interference.
SYSTEM REACCEPTANCE TEST AFTER SOFTWARE CHANGES -To ensure proper
system operation, this product must be tested in accordance with NFPA72-1996, Chapter 7 after
any programming operation or change in site-specific software. Reacceptance testing is required
after any change, addition or deletion of system components, or after any modification, repair or
adjustment to system hardware or wiring.
All components, circuits, system operations, or software functions known to be affected by a
change must be 100% tested. In addition, to ensure that other operations are not inadvertently
affected, at least 10% of initiating devices that are not directly affected by the change, up to a
maximum of 50 devices, must also be tested and proper system operation verified.
Cautions and Warnings

3
The NACext provides Z-28 panels with additional notification appliance circuit (NAC) capacity,
flexible operation modes, and a power-limited design.
The standard version includes four, Class B (Style Y) NACs, each rated 2 A @ 24 VDC. The
NACS are compatible with standard 24 VDC notification appliances.
A
LARMFIR
E
PULL DO WN
F
I
R
E
POW
ER
BEF
ORE
SERVIC
CAUTI
ON
DISCON
NECT
4009 IDNet NAC EXTENDER
TM
F
I
R
E
Optional ISLCn
Channel Repeater
F
I
R
E
F
I
R
E
SIMPLE
XTIME
4
0
MONIT
O
R
INSTA
L.
DAT
E 1
5
6
7
8
1
2
3
4
1
2
3
4
5
6
7
8
+
2
0
V
+I
D
-
ID
ZO
NE
ZO
NE
I
D
I
D
Up to 8 NACs
4010 Fire Alarm
Control Panel
Fire Alarm Control Panel
Conventional NACs
NAC Control
2-Wire IDNet
Communications
FIRE
ALARM
CONT
ROL
DISC
ONN
POWE
R
SER
VICI
CAUTI
ON
**SYSTEM IS
NORMAL**
12:02: 15pm
Mon 9
Feb
98
S
U
A
C
SY
ST
SUPE
RVIS
A
L
AR
A
C
FI
R
A
L
AR
TRO
A
C
SY
ST
TRO
UBL
A
L
AR
SIL
EN
A
L
AR
SILE
NCE
SY
ST
RE
SE
A
C
PO
WE
or
4009 IDNet
NAC Extender
NACext Connection Reference Drawing
Input control from the host panel can be from either:
• SLCnet addressable communications from an AUTOPULSE Z-28 Releasing Panel. SLCnet
communications provide status monitoring and individual NAC control using a single address
per NACext, and support for SLCnet “Device Level” Earth fault location.
• Hardwired from one or two conventional 24 VDC NACs, providing multiple output control
options.
Continued on next page
Overview
Introduction
NACext
Z-28 Fire Alarm
Control Panel
2-Wire SLCnet
Communications

4
Figure 1 identifies the major components of the NACext system board. Be aware that the
brownout and charger are factory adjustments.
Note: Do not make field adjustments to the brownout and charger components.
Figure 1. NACext System Board
The NACext system board provides 4 hardwired, Class B, reverse polarity Notification Appliance
Circuits. Each circuit has one polarity for supervision state and the opposite polarity for alarm
state. Field wiring terminations are provided for 12 AWG - 18 AWG wire. Refer to Field Wiring
Diagram, Part No. 431434 for complete wiring, compatible appliances, current, and line distance
information.
Continued on next page
Overview, Continued
NACext System
Board
NAC (Notification
Appliance Circuit)
Outputs
TB1, TB2
HARDWIRED NAC
(NAC 1-4)
P8 (ORANGE WIRE)
P9 (YELLOW WIRE)
CHARGER INPUTS
FROM TRANSF0RMER
TB5
NAC CONTROL
INTERFACE
(HOST NAC IN)
TB6
AUXILARY POWER
OUTPUT
(1 AMP AVAILABLE)
P1 AND P2
CLASS A ADAPTER
INTERFACE
LED(s) 1-4
NAC STATUS
INDICATORS
SW2 SOFTWARE
ADDRESS/CONFIGURATION
DIPSWITCH
TB4
SLCnet CONTROL INTERFACE
P4
4-CIRCUIT NAC OPTION
CARD INTERFACE
H1 (RED WIRE), H2 (BLACK WIRE)
MAIN POWER INPUTS FROM BRIDGE
RECTIFIER
TB7
BATTERY TERMINAL
P7 SIGNAL POWER TO NAC
OPTION CARD
LED(s) 5-8
SYSTEM TROUBLE
INDICATORS
LED 9
AC POWER INDICATOR
BROWNOUT
ADJUSTMENT
(SEE NOTE)
CHARGER
(SEE NOTE)
SW1
HARDWARE CONFIGURATION
DIP SWITCH

5
The notification circuits use a 10k end-of-line resistor for supervision. The circuit is monitored
for short and open circuit line faults when in the standby (not energized) condition. In the event of
a short circuit, the NACext will not activate the NAC while the short circuit fault is present.
During coded signal operation, the NACext checks for a short during each “off”, and holds the
circuit off if a short is detected. Short and open circuit faults are reported to the host panel via the
command channel (either SLCnet or hardwired, depending on configuration) and can be identified
by a blinking trouble LED on the NACext during supervisory state.
The NACs are configurable as “Class A” circuits with the addition of an option card that plugs
onto the base board. The option card also provides the additional field wiring terminations needed
for Class A. The NACext monitors for insertion of the Class A Option Card.
In addition, when configured as an SLCnet peripheral, each circuit can be independently
controlled and each has the ability, under software control, to disconnect its supervision, allowing
Earth fault isolation (this operation is also performed automatically as part of the power-up
sequence).
The battery charger charges lead acid batteries up to 18AH. Batteries are supervised for
low/missing battery and depleted battery. The battery charger output remains disabled until a
battery is sensed.
The Canadian version of the NACext includes a low battery cutout module and harness. The
factory installed battery cutout module replaces the standard (US version) battery harness. The
module disconnects the batteries if the terminal voltage drops below 19.3VDC during battery
standby operation. Connection to the batteries is restored on resumption of AC power.
The hardware configuration switch is located at the top edge of the system board (see Figure 1). It
has two functions:
• Switches 1 through 7 identify the optional equipment installed on the NACext. A trouble
condition is reported to the panel if hardware is configured, but not present or hardware is
present but not configured.
• Switch 8 indicates whether the unit is communicating with the Z-28 via SLCnet or over a
hardwired interface.
The Software Address/Configuration Switch (SW2) is an 8-position DIP switch located at the top
edge of the system board. It has two functions:
• When the NACext is operating as an addressable SLCnet peripheral, this switch sets the
SLCnet address to which the NACext responds. Each NACext has a unique address (1
through 250).
• When operating as a NACext non-addressable NAC Extender (conventional or “hardwired”
NACext mode), this switch (SW2) configures the operation of the output NACs, based on the
state of the two NAC control inputs.
Continued on next page
Overview, Continued
NAC (Notification
Appliance Circuit)
Outputs, (continued)
Battery Charger
Battery Cutout
Module (Canadian
Version only)
DIP Switch SW1 --
Hardware
Configuration
DIP Switch SW2 --
SLCnet
Address/Hardwired
Configuration

6
Each output NAC has a yellow LED (see Figure 1 for location of LEDs) to indicate a trouble
condition or the active state of that NAC. The condition/state for the NACs are as follows:
•IN ALARM = NAC (1-4) LED “ON”
•IN SUPERVISORY = LED “OFF” (OK)
•SLOW FLASH (1 flash per second) = SHORT
•FAST FLASH (2 flashes per second) = OPEN
The system trouble indicators consist of a bank of four yellow LEDs (see Figure 1 for location of
LEDs) that are used to signify various trouble conditions within the NACext system. Only one
trouble at a time is indicated, highest trouble state indicated first. When that trouble clears,
additional troubles, if present, will be indicated. Table 1 lists system troubles from highest trouble
state (invalid configuration) to lowest trouble state (Normal).
Table 1. System Trouble LED Indicators
LED 5 LED 6 LED 7 LED 8 TROUBLE DESCRIPTION
OFF OFF OFF ON Invalid Configuration
ON ON ON OFF Diagnostic Test Fail
OFF ON ON OFF Software Failure
OFF ON OFF OFF Running on Depleted Battery
ON OFF OFF OFF Low/Missing Battery
ON OFF ON OFF Earth Ground Fault
ON OFF OFF ON NAC Trouble
OFF OFF ON OFF AC Power Loss
OFF OFF OFF OFF Normal
This green LED indicates that AC power is present and is being used as the NACext power
source. The NACext is switched to batteries whenever the green LED is “OFF”.
CAUTION: The green AC LED indicates “Good AC Power”. In the event of a
brownout condition, the unit will switch to battery power but lethal
voltages may still exist. DISCONNECT POWER BEFORE SERVICING.
NACext, Continued
NAC Status
Indicators (LED(s) 1-
4)
System Trouble
Indicators (LED(s) 5-
8)
AC Power Indicator
(LED 9)

7
The NACext supports the optional add-on cards described in this section. Optional hardware
must be identified with DIP Switch SW1-1 through SW1-7, as described in this section. Option
modules for the NACext include the following:
• Class A Adapter Option Card (Part No. 430677). The Class A Adapter Option Cards
(see Figure 1) plug into connectors P1 and P2 located on the NACext system Board (see
Figure 1). One Class A Adapter Option Card provides Class A/Style Z functionality on two
NACs. Refer to Class A Adapter Option Card, Part No. 430677 Installation Instructions,
Part No. 431310 for detailed information on installing this option card. Note that this card is
not compatible with two-wire AVsync appliances.
• NAC Option Card (Part No. 430676). The 4-ciruit NAC Card is an option card for the
NACext. Refer to NAC Option Card Part No. 430676 Installation Instructions, Part No.
431309 for detailed information on installing this option card. The NAC option card provides
four additional hardwired NACs to the NACext base configuration of four NACs. Each of the
four NACs on the NAC option card is functionally equivalent to the NACs on the NACext
system board, except that the option NACs are rated at 1.5 amps. The NAC option card plugs
into connector P4 (see Figure 1) on the NACext system board. The NACs are configurable as
“Class A” circuits with the addition of Class A Adapter Option Cards that connect to the two
Class A adapter connector interfaces located on the NAC Option Card. The NAC Option Card
signal power for the four NACs is received from NACext system board connector P7 (see
Figure 1) using wiring harness Part No. 431251.
The 8-position Hardware Configuration DIP Switch (SW1) is used to configure what hardware is
present and supervised by the NACext. The hardware configuration switch is located at the top
edge of the system board (see Figure 1). The “ON” position of the switch indicates which
associated hardware is installed on the NACext. A trouble condition is reported to the
Z-28 if hardware is configured, but not present or hardware is present but not configured.
Set switches 1-1 through 1-7, as shown in Table 2, to identify the optional equipment installed on
the NACext.
Continued on next page
Identifying Optional Equipment
Overview
Setting Switches
SW1-1 through
SW1-7

8
Table 2. Hardware Configuration Switch SW1
Switch Configured Hardware “ON” = Present
SW1-1* Set to ON if Class A Adapter for NAC 1 & 2. Set to Off if no option
card is present.
SW1-2* Set to ON if Class A Adapter for NAC 3 & 4. Set to Off if no option
card is present.
SW1-3* Set to ON if Class A Adapter for NAC 5 & 6. Set to Off if no option
card is present.
SW1-4* Set to ON if Class A Adapter for NAC 7 & 8. Set to Off if no option
card is present.
SW1-5 Not Used. Set to Off.
SW1-6 Not Used. Set to Off.
SW1-7 Set to ON if a NAC Option Card is used. Set to Off if no option card
is present.
SW1-8 Set to ON if NACext is hardwired to host panel. Set to OFF if NACext
connects to Z-28 via SLCnet channel.
Identifying Optional Equipment, Continued
Setting Switches
SW1-1 through
SW1-7, (continued)

9
This section describes the configuration and wiring process required to setup the NACext for SLCnet
communications.
Dip Switch SW1/Position 8 controls how the NACext receives it commands. This switch must be set
to the OFF position for SLCnet communications
The Software Address/Configuration Switch (SW2) is an 8-position DIP switch, located at the top
edge of the system board. When the NACext is operating as a addressable SLCnet peripheral, this
switch sets the SLCnet address to which the NACext responds.
Each NACext must have a unique address (1 through 250). This address is assigned by the Z-28
programmer and must be set on the hardware also. When setting the address, DIP switch position 1 is
the least significant bit (LSB) and position 8 is the most significant bit (MSB). Set the NACext’s
SLCnet address using the following figure as reference. Use a small screwdriver or pen to set the
switches.
Note: DIP switch in “1” position is “ON” while DIP switch in “0” position is “OFF”.
Figure 2. NACext (SLCnet Addressable Mode) Address Chart
Continued on next page
Configuring and Wiring SLCnet Operation
Overview
Set Switch SW1-8 to
OFF
Set SLCnet Address
Using Switch SW2
0000 1000 0100 1100 0010 1010 0110 1110 0001 1001 0101 1101 0011 1011 0111 1111
0000 0 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240
1000 1 17 33 49 65 81 97 113 129 145 161 177 193 209 225 241
0100 2 18 34 50 66 82 98 114 130 146 162 178 194 210 226 242
1100 3 19 35 51 67 83 99 115 131 147 163 179 195 211 227 243
0010 4 20 36 52 68 84 100 116 132 148 164 180 196 212 228 244
1010 5 21 37 53 69 85 101 117 133 149 165 181 197 213 229 245
0110 6 22 38 54 70 86 102 118 134 150 166 182 198 214 230 246
1110 7 23 39 55 71 87 103 119 135 151 167 183 199 215 231 247
0001 8 24 40 56 72 88 104 120 136 152 168 184 200 216 232 248
1001 9 25 41 57 73 89 105 121 137 153 169 185 201 217 233 249
0101 10 26 42 58 74 90 106 122 138 154 170 186 202 218 234 250
1101 11 27 43 59 75 91 107 123 139 155 171 187 203 219 235
0011 12 28 44 60 76 92 108 124 140 156 172 188 204 220 236
1011 13 29 45 61 77 93 109 125 141 157 173 189 205 221 237
0111 14 30 46 62 78 94 110 126 142 158 174 190 206 222 238
15 31 47 63 79 95 111 127 143 159 175 191 207 223 239
LSB MSB
12345678
1111
DIP SWITCHES 5 THRU 8
ON
OFF 1 = ON 0 = OFF
251
252
253
254
255
DIPSWITCH IS SHOWN SET AT ADDRESS 7.

10
This section describes wiring Class A or Class B circuits for the following A/Vs.
• Wheelock Model MT-241575W-FR Sounder & 15/75 Candela Strobe
• Wheelock Model MT-2475W-FR Sounder & 75 Candela
• Wheelock Model MTWP-2475W-FR Weatherproof Sounder & 75 Candela
• Wheelock Model RSS-24MCW-FR Multi-Candela Strobe
+ALM -ALM +ALM -ALM +ALM -ALM +ALM -ALM
10K
EOL
SW1
ON
1
2
3
4
5
6
7
8
SW2
ON
1
2
3
4
5
6
7
8
If Class B circuit, add
two 10K EOL resistors,
one for audible circuit
and one for visual
circuit.
Rectangular A/Vs:
4903-9252 through
4903-9258. Jumpers
must be removed for 4-
wire operation. See
Installation instruction
579-237 for device
wiring.
TrueAlert Non-
Addressable A/Vs
4903-9425, -9426,
-9427, -9431, -9432,
-9433. See 574-721
for device wiring.
10K
EOL
Horns and visuals
must be wired to
separate NAC circuits
if Marchtime,
Temporal, or Off on
Silence horn
operation is required.
Switches 1-1 through 1-7
identify optional hardware.
See "Identifying Optional
Hardware," earlier in this
manual for information.
Switch 1-8 must be set to
OFF for IDNet Operation.
Switch 2 sets the
IDNet Address.
See "Setting
IDNet Address" in
this section.
61
IDNet +
IDNet -
IDNet +
IDNet -
B
R
B
R
To Next
IDNet
Device
(If Present)
From Previous
IDNet Device
or Host Panel
If optional shields are used on IDNet wiring,
follow these precautions:
1) If IDNet wiring continues to another device,
tape shields together. Do not terminate shield
at 4009 IDNet.
2) If IDNet wiring terminates at 4009, tape
shield. Do not terminate shield at 4009 IDNet.
Both style of A/Vs
contain a switch that
allows the visuals to
operate in Free Run
mode (visuals not
syncronized) or Sync
Strobe mode (all
visuals flash
simultaneously). To
enable Sync Strobe
mode, you must also
enable the SyncVisual
option in the 4010
programmer.
Optional Shield
See 1, 2 above
NAC
1
NAC
2
NAC
3
NAC
4
+ALM -ALM +ALM -ALM
Continued on next page
Configuring and Wiring SLCnet Operation, Continued
Class A and B
Wiring – NACnet
A/Vs
A
ll wiring is supervised and powe
r
-limited.
NACs are rated 24 VDC, 2A max.
SLCnet + SLCnet +
SLCnet - SLCnet -
To Next
SLCnet
Device
(If Present)
If optional shields are used on SLCnet wiring,
follow these precautions:
1) If SLCnet wiring continues to another device,
tape shields together. Do not terminate shield at
4009 SLCnet .
2) If SLCnet wiring terminates at NACext, tape
shield. Do not terminate shield at NACext.
Switch 1-8 must be set to
OFF for SLCnet operation
Switch 2 sets the
SLCnet Address.
See “Setting
SLCnet Address” in
this section
From Previous
SLCnet Device or
Host Panel

11
This section describes:
• Configuring the switches on the NACext to define the operation of the NACext’s NACs.
• Wiring conventional 4-wire NAC devices to the NAC outputs of the NACext.
• Hardwiring the NACext to the host panel. The term “hardwiring” refers to the dedicated wiring
connecting a set of NAC outputs on the host panel with the input terminals of the NACext.
Set Switch 1 (SW1) as follows:
• Switches 1 through 7 on Switch 1 (SW1) are used to identify the optional hardware installed on
the NACext. Refer back to “Identifying Optional Equipment,” earlier in this document for
specific information on setting these switches.
• Switch 8 on SW1 determines whether the NACext is communicating with the host via SLCnet or
over a hardwired connection. This switch must be set to the ON position.
When operating as a NACext Non-Addressable NAC Extender (NACext is hardwired to host panel),
Switch SW2 configures the operation of the NACext’s output NACS based on the state of its two NAC
control inputs. The following table summarizes the available choices.
Table 3. SW2 Settings
Switch # Mode of Operation
Switches 1, 2, and 3 control which NACext NAC outputs turn on and off when a specific input from the host panel turns on or off.
Several different options are available as shown below. Example. Setting 1, 2, and 3 to the OFF position causes NACs 1 and 2
(plus 5 and 6 if the option card is installed) to turn ON when hardwired Input 1 turns on and OFF when it turns off. If however, Input
2 activates, NACs 3 and 4 (plus 7 and 8 if the option card is installed) track the state of input 2.
Switch 1 Switch 2 Switch 3
When this Input
from Host Panel
Turns ON
Power is Applied
to these NACext
NAC Circuits
OFF OFF OFF 1 1 & 2 (5 & 6)
OFF OFF OFF 2 3 & 4 (7 & 8)
ON OFF OFF 1 1 - 4
ON OFF OFF 2 5 - 8
OFF ON OFF 1 1 - 8
1 - 3
OFF ON OFF 2 None
4 Set this switch to OFF.
5 If switch 6 or 7 is set to OFF, this switch identifies the locally generated code pattern: ON = Marchtime OFF = Temporal.
6
When hardwired, Input 2 activates, the setting of this switch determines the source of the coding pattern used by the NACext’s
NACs. If this switch is set to ON, the NACext NACs controlled by Input 2 track the coding pattern used by the host panel. If this
switch is set to OFF, the NACext NACs controlled by Input 2 use the NACext’s locally generated coding pattern, which is
determined by the setting of Switch 5.
7
When hardwired, Input 1 activates, the setting of this switch determines the source of the coding pattern used by the NACext’s
NACs. If this switch is set to ON, the NACext NACs controlled by Input 1 track the coding pattern used by the host panel. If this
switch is set to OFF, the NACext NACs controlled by Input 1 use the NACext’s locally generated coding pattern, which is
determined by the setting of Switch 5.
8 Set to OFF for hardwired operation with Conventional, 4-wire A/Vs.
Continued on next page
Hardwired Operation -- Conventional A/Vs
Overview
Set Switch 1
Set Switch 2 for
Conventional,
Hardwired A/V
Operation

12
With this type of application, a single hardwired, input from one of the host panel’s NAC outputs
controls the NACext’s output appliances. Important points to note for this application include:
• Only a single NACext can be used. Daisy-chaining additional NACexts is NOT allowed.
• Single input control prevents individual control of the audibles and visuals. Audibles and visuals
both track the host input, turning on when the input is on and off when it is off. In the example
outlined below, Input 1 is Off on Reset, so both horns and visuals operate until a reset is
performed.
• Although audibles cannot turn on and off separately from the visuals, it is possible to configure
marchtime or temporal audible signaling without affecting the operation of the visuals.
The following example illustrates the steps required to implement this type of signaling:
− Configure the host NAC connected to NACext Input 1 as Off on Reset and use an ON Steady
signaling pattern.
− Jumper Channel 1 to Channel 2, as shown in figure. This causes both audibles and visuals to
track the state of Input 1.
− Wire Visual side of A/V to NACext NAC1 and Audible side to NACext NAC3.
− If synchronized visuals are required, set the switch on the back of the A/V to the synchronized
setting and set Switch 2-4 on the NACext to the ON position.
− Set switches 1, 2, and 3 on SW2 to the OFF position. This configures the NACext so that
NACext NACs 1 & 2 (Visuals) are associated with host Input 1 and NACext NACs 3 & 4
(Audibles) are associated with host Input 2.
− Set Switch 7 on SW2 to the ON position. This causes the NACext NACs associated with
Input 1 (i.e., NACs 1 & 2/Visuals) to track the state of the host Input.
− Set Switch 6 on SW2 to the OFF position. This causes the NACext NACs associated with
Input 2 (i.e., NACs 3 & 4/Audibles) to use the NACext’s locally generated coding pattern. To
set the locally generated coding pattern, set Switch 5 on SW2 to the appropriate setting (ON =
Marchtime; OFF = Temporal).
Continued on next page
Hardwired Operation -- Conventional A/Vs, Continued
Example: Wiring
Class A or B NAC
Operation --Single
Host Input

13
• Wheelock Model MT-241575W-FR Sounder & 15/75 Candela Strobe
• Wheelock Model MT-2475W-FR Sounder & 75 Candela
• Wheelock Model MTWP-2475W-FR Weatherproof Sounder & 75 Candela
• Wheelock Model RSS-24MCW-FR Multi-Candela Strobe
Rectangular A/Vs:
4903-9252 through
4903-9258. Jumpers
must be removed for 4-
wire operation. See
Installation instruction
579-237 for device
wiring.
TrueAlert Non-
Addressable A/Vs
4903-9425, -9426,
-9427, -9431, -9432,
-9433. See 574-721
for device wiring.
61
Both style of A/Vs
contain a switch that
allows the visuals to
operate in Free Run
mode (visuals not
syncronized) or Sync
Strobe mode (all
visuals flash
simultaneously). To
enable Sync Strobe
mode, you must set
dipswitch SW2-4 to
ON.
NAC
4
1+ CHANNEL 1
CHANNEL 2
2
1
2+
8-
7-
3-
6+
4-
5+
TB6
TB5
+
-
+
-
SW2SW1
Off on
Reset
+ALM -ALM +ALM -ALM +ALM -ALM +ALM -ALM
NAC
1
NAC
2
NAC
3
+ALM -ALM +ALM -ALM
If Class B, terminate at
last device on circuit
with two 10K EOL
resistors -- one for horn
circuit and one for
visual circuit
+ALM -ALM +ALM -ALM
Configure host NAC to use
STEADY signaling pattern.
Program as Off on Reset or Off
on Silence as required.
Note jumpers from Channel 1 to Channel
2. This causes both channels to turn ON
when Input 1 from host NAC turns ON.
Set switches 1, 2, and 3 on SW2 to the
OFF position to apply power to 4009 NACs
1&2 and NACs 3&4 each time this input
turns on.
Continued on next page
Hardwired Operation -- Conventional A/Vs, Continued
Example: Wiring
Class A or B NAC
Operation --Single
Host Input,
(continued)
For Class A operation, add 430677 Class A
A
dapter Option Cards. Terminate wiring from
last device in circuit at adapter card as
shown.
For Class B operation, do not use adapter
cards. Add 10 K EOL resistors to last device
on circuit.
Switches 1-1 through
1-7 identify optional hardware. See
“Identify Optional Hardware,“
earlier in this manual for
information on this switch.
Settings for Switch 2 depend on
application. See Table 3 for
settings.
A
ll wiring is supervised and powe
r
-limited.
NACs are rated 24 VDC, 2A max.
Set switches 1, 2 and 3 on SW2 to the
OFF position to apply power to NACext
NACs 1&2 and NACs 3&4 each time this
input turns on

14
This section provides an example of hardwiring a NACext to a host panel using two NAC inputs from
the host panel. Two NAC inputs from the host allows the host panel to separately control the
NACext’s A/Vs, turning off the audibles on signal silence and turning off the visuals when a system
reset occurs.
• Wire the visual side of the A/Vs to NAC1. Wire the audible side to NAC3.
• Configure host NAC connected to Input 1 as Off on Reset. Configure the host NAC connected to
Input 2 as Off on Silence
• Set switches 1, 2, and 3 on SW2 to the OFF position. This configures the NACext so that NACext
NACs 1 & 2 (Visuals) are associated with host Input 1 and NACext NACs 3 & 4 (Audibles) are
associated with host Input 2.
• Set Switch 7 on SW2 to the ON position. This causes the NACext NACs associated with Input 1
(i.e., NACs 1 & 2/Visuals) to track the state of the host Input.
• Set Switch 6 on SW2 to the OFF position. This causes the NACext NACs associated with Input 2
(i.e., NACs 3 & 4/Audibles) to use the NACext’s locally generated signaling pattern. To set the
locally generated signaling pattern, set Switch 5 on SW2 to the appropriate setting (ON =
Marchtime; OFF = Temporal).
Continued on next page
Hardwired Operation -- Conventional A/Vs, Continued
Example: Wiring
Class A or B NAC
Operation – Dual
Host Input

15
• Wheelock Model MT-241575W-FR Sounder & 15/75 Candela Strobe
• Wheelock Model MT-2475W-FR Sounder & 75 Candela
• Wheelock Model MTWP-2475W-FR Weatherproof Sounder & 75 Candela
• Wheelock Model RSS-24MCW-FR Multi-Candela Strobe
+ALM -ALM +ALM -ALM +ALM -ALM +ALM -ALM
If Class B, two 10K
EOL resistors required
-- one for horn circuit
and one for visual
circuit
Rectangular A/Vs:
4903-9252 through 4903-9258. Jumpers
must be removed for 4-wire operation. See
Installation instruction 579-237 for device
wiring.
TrueAlert Non-Addressable A/Vs
4903-9425, -9426, -9427, -9431, -9432,
-9433. See 574-721 for device wiring.
61
Synchronizing Visuals:
ySingle 4009. Both style of A/Vs
contain a switch that allows the
visuals to operate in Free Run
mode (visuals not syncronized)
or Sync Strobe mode (all visuals
flash simultaneously). To
enable Sync Strobe mode for a
single 4009, you must set
dipswitch SW2-4 to ON.
yMultiple 4009s. Wire a 4905-
9922 SyncCube to the visual
input from the host panel, as
shown below. On the 4009, set
dipswitch SW2-4 to the OFF
position. NAC
1
NAC
2
NAC
3
NAC
4
1+
CHANNEL 1
CHANNEL 2
2
1
2+
8-
7-
3-
6+
4-
5+
TB6
TB5
Host
FACP
+
-
+
-
Off on
Reset
Off on
Silence
Separating the audible and visual
circuits as shown allows audibles to
turn off on silence and visuals to
turn off on reset.
SW1 SW2
1+
CHANNEL 1
CHANNEL 2
2
1
2+
8-
7-
3-
6+
4-
5+
TB6
TB5
Steady Outputs
from FACP
+ Red + Yellow
- Blk- Blk
Sync Cube
4905-9914
Only
Up to 3 additional 4009 IDNets can
be daisychained in this fashion.
The last unit must use EOL
resistors across terminals 2/4 and
6/8 as shown in the figure
+ALM -ALM +ALM -ALM +ALM -ALM +ALM -ALM
Continued on next page
Hardwired Operation -- Conventional A/Vs, Continued
Example: Wiring
Class A or B NAC
Operation – Dual
Host Input,
(continued)
For Class A operation,
add Class A Adapter
Option Cards, Part No.
430677. Terminate
wiring from last device
in circuit at adapter
card as shown.
For Class B operation,
do not use adapter
cards. Add 10 K EOL
resistors to last device
on circuit.
Visuals
A
udibles
Switches 1-1 through
1-7 identify optional
hardware. See “Identify
Optional Hardware,“
earlier in this manual for
information.
Settings for Switch 2
depend on application.
See Table 3 for
settings.
A
ll wiring is supervised and powe
r
-limited.
NACs are rated 24 VDC, 2A max.
Up to 3 additional NACexts can be
daisy chained in this fashion.
The last unit must use EOL
resistors across terminals 2/4 and
6/8 as shown in the figure

16
Important: Notify the appropriate personnel (building occupants, fire department, monitoring
facility, etc.) of the installation.
The following paragraphs contain material which is applicable to all NACext systems. Be sure that
you are thoroughly familiar with this material before installing your NACext.
The following tools and equipment are required to install the NACext:
• 1/4-inch flat-tip screwdriver, 8-inches long
• 1/8-inch flat-tip screwdriver, 4-inches long
• Volt-Ohmmeter
• Diagonal cutting pliers
• Wire strippers
• Listed end-of-line resistors (ordered seperately)
10K resistor (Part No. 431222)
• Field Wiring Diagram Part No. 431434.
• All wiring must be installed in accordance with local codes.
• A minimum of 6 inches of free conductor is required at each electrical box to facilitate
terminations.
• A 12-inch service loop of cable is required for all continuous pulls through an electrical box.
• All system wiring subject to physical damage must be mechanically protected based on the
environment to which the cable is subjected.
• A neatly wired system helps ensure an accurate inspection of all connections and simplify
troubleshooting.
Continued on next page
System Installation
General Information
Tools and
Equipment Required
General Notes

17
Note: The following pages provide a detailed description of the installation. If you experience
problems that cannot be resolved, call your local Ansul Branch Office.
Use the following procedure when mounting a NACext.
CAUTION: Read all instructions carefully before cutting conduit/service entrances
and installing back box. Failure to comply with all installation
requirements may result in a violation of UL or FCC regulations.
1. Carefully open the shipping container.
2. Remove the NACext from the shipping container and lay the unit on a flat surface.
3. Unlock and open the panel door. Remove the electronic card cage assembly and store it in a safe
dry area. Disconnect the AC wiring harness from the card cage before removing it from the box.
4. Determine the amount and proper location of conduit/service entrances (see Figure 6). Make all
appropriate entrances into the back box.
Power-Limited and Non-Power Limited wiring must enter through separate conduit/service
entrances. AC power entrance into the back box is recommended at the bottom right side of the
back box.
Maximum intrusion into back box for conduit is ½ -inch.
Figure 6
Continued on next page
System Installation, Continued
Mounting the
NACext
BATTERY
MOUNTING AREA
(NO CONDUIT
ENTRY)
KNOCKOUT
SCREW/NAIL
HOLES for SEMI-
FLUSH MOUNTING
TOP VIEW
NON-POWER-LIMITED WIRING
ONLY
C
B
D
E
A
Recommended Conduit Locations
Locate conduit entry approximately
where shown.
A. AC Power
B. Notification Appliance Circuits and
SLCnet
C. Control Inputs: SLCnet or
Notification Appliance Circuits

18
5. Mount back box to wall. Back box must be level and plumb. For surface mounting use the
teardrop and clearance holes located in the rear of the box and screw to wall.
6. Wire Non-Power-Limited wiring in the shaded areas only (see Figure 6), this includes AC input
and battery connections. All other wiring is Power-Limited. Maintain at least ¼-inch spacing
between all Power-Limited and Non-Power-Limited wiring.
7. Connect the AC wiring harness and install the electronic card cage assembly to the NACext
cabinet.
When wiring the NACext, refer to Field Wiring Diagram, Part No. 431434, the NACext Connection
Diagram (Figure 7), and the following system wiring requirements.
• All wiring, except incoming power and ground connecting wires, must be free from grounds or
shorts and have a resistance of one megohm, or higher, to EARTH.
• All wires are to be copper conductors only, except fiber cables. All equipment must be installed in
accordance with the manufacturer’s recommendations and the specifications and standards of the
Authority Having Jurisdiction (AHJ). The installation of all wiring, cable, and equipment must be
in accordance with NFPA 70.
• If shielded wire is used, the metallic continuity of the shield must be maintained and insulated
throughout the entire length of the cable. The entire length of the cable must have a resistance of
one megohm to Earth.
• Splicing is permitted in accordance with NFPA 70. All wiring must be terminated with UL listed
devices (e.g., wire nuts, pressure connectors). Wiring terminated with only electrical tape is not
permitted. All splicing (free ends of conductors) must be covered with an insulation equivalent to
that of the conductors.
• An appropriate system ground must be provided for Earth detection and lighting protection
devices. This connection shall be made to an approved dedicated Earth connection per NFPA 70.
• When running wires to the NACext, identify the wires appropriately: Only system wiring can be
run in the same conduit which includes dedicated NAC wiring, SLCnet wiring, 24V AUX wiring,
and the four NAC circuits (an additional four NAC circuits are available as a field-installed
option).
Input power and external battery power are Non-Power-limited and cannot be run with
Power-Limited system wiring.
Continued on next page
System Installation, Continued
Mounting the
NACext, continued
Wiring the NACext

19
NAC (120VAC System), Part No. 430674
AC Input - 120VAC, 3 amperes, 60Hz
Battery Input - 24VDC, 8 amperes
Notification Appliance Power Output - 24VDC, 8 amperes
NAC (220/240 System), Part No. 430675
AC Input - 220/240VAC, 1.5 amperes, 50/60Hz
Battery Input - 24VDC, 8 amperes
Notification Appliance Power Output - 24VDC, 8 amperes
Continued on next page
System Installation, Continued
System Power
Requirements
Notes:
1. Refer to Field Wiring Diagram, Part No. 431434 for detailed information on NACext System
Wiring Configurations.
2. External Battery requires splicing into existing Battery harness (Part No. 431279), see Note 1.
NACext
SLCnet
CONTROL SLCnet
INPUT

20
Refer to Field Wiring Diagram, Part No. 431434, for detailed information, and the procedure listed
below when installing the NACext peripheral devices.
1. Determine the mounting locations of the peripheral devices and install system wires from the
mounting location of each peripheral device to the NACext system board. All wiring to be
minimum 18 AWG, supervised, and Power-Limited.
2. Install all peripheral devices and connect them to appropriate wires. (Refer to the installation
instructions packed with the devices.)
3. For 2-wire Class B/Style Y and 4-wire Class A/Style Z devices, a 10K, 1/2 W
(Brown/Black/Orange) End-of-Line Resistor (EOLR) is provided.
The base NACext has the following system wiring configurations:
• 2-wire Class B/Style Y NAC (reverse polarity)
• 4-wire Class A/Style Z NAC (reverse polarity)
• Hardwired NAC Control Inputs from host panel (Class A/Style Z &
Class B/Style Y)
• Addressable SLCnet Slave Interface (Class B/Style 4 and Class A/Style 6)
System Installation, Continued
Mounting and Wiring
Peripheral Devices
System Wiring
Configurations