LifeSafety Power FlexPower N24 User manual

LifeSafety Power, Inc. | PH 888.577.2898 | [e-mail]
P03-027 Rev A08
N24 Installation Manual

N24 Installation Manual
2 3
Connecting the N24 Power Distribution Module
hRemove all AC and battery power from the FPO system before adding or replacing an N24 module.
FlexIO continues to other accessories
FlexIO in from System
Main DC voltage continues to
other accessories
Second DC Source continues to
other accessories
BR continues to other accessories
DC OUT terminals to devices to be powered
BR in from System
Input from Main
DC voltage source
Input from Second
DC source (optional)
Required Connections
Optional Connections
Each of the B1, B2, BR, and FlexIO busses has two connectors.
These connectors may be used interchangeably.
For example: FlexIO from the power supply may be connected
to either of the N24's FlexIO connectors, the Main DC voltage
source may connect to either B1 terminal, etc.
A B C D A B C D
FlexIO
B1
B2
BR
1
2
3
4
5
6
7
DataLink
N24 Board
B1
B2
BR
N24
Description
The N24 NAC Expander accessory provides up to four NAC
outputs, controlled by one or two NAC inputs. Inputs and Out-
puts can be configured as Class A or Class B. Maximum output
is 3A per output zone. The N24 is powered from a 100W or
larger FPO power supply set for 24VDC. The N24 works either
as a follower (passing along synchronization or audible cod-
ing) or generates its own synchronization or audible coding.
Regulatory Information
The equipment discussed within this manual has been tested
to the following standards:
• UL864
• ULC S527
• CSFM Approved
•
Mounting the N24 Power Distribution Module
Mounting of the board to an enclosure is via the four
snap-in standoffs supplied.
1. Locate the appropriate
mounting holes in the
enclosure and snap
the standoffs into the
holes.
2. Align the board mount-
ing holes with the
standoffs (be sure the
PC board is properly oriented) and snap the board onto
the standoffs.
N24 Board
N24
Electrical Specifications
Power
Input
Voltage 24VDC nominal ±15%
Current 12A maximum
Standby Current 100mA maximum
Alarm Current 250mA max. plus output load
Zone
Inputs
Voltage 24VDC maximum
Current 25mA maximum
Zone
Outputs
Voltage 24VDC
(Regulated 24V DC rating)
Current 3A max per output
Max. line impedance 1.5 Ohms
INote that the total current draw from any
buss must not exceed the capability of the
power supply powering that buss
Fuse 30A ATM automotive style

N24 Installation Manual
2 3
N24 – Accessory Overview
ON
IN1 IN2
A
IN1 IN2 OUT1 OUT2 OUT3 OUT4 Com FLT
BCD ABCD
OUT 1OUT 2OUT 3OUT 4
FlexIO FlexIO
F1 F2
B1
B2
BR
1
2
3
4
5
6
7
DataLink 




 




N24 Board
B1
B2
BR
N24
1
B1 Connectors (J1 & J2)
These fastons are for connection to the B1 voltage buss in
the system. The voltage on the B1 buss comes from the DC1
faston of an FPO power supply. This voltage will supply the
outputs of the N24 board when the input fuse is set in the
“B1” position.
2
B2 Connectors (J5 & J6)
These fastons are for connection to the B2 voltage buss in
the system. The voltage on the B2 buss comes from the DC1
faston of an FPO power supply in a dual voltage system. This
voltage will supply the outputs of the N24 board when the
input fuse is set in the “B2” position. If the N24 is being used
in a single voltage system, these fastons can be left unused.
3
BR Connectors (J3 & J4)
The DC common buss in the system. All boards in the system
must have their BR fastons wired together for proper operation
(except for hybrid systems with both AC and DC output voltages).
4
Input Fuse (JP4, JP5, & JP6)
The input power source can be selected by placing the in-
put fuse in the appropriate position. The B1 and B2 mark-
ings correspond with the B1 and B2 power inputs. See the
Specifications section of this manual for fuse type and ratings.
5
NAC Output Terminals (TB1 & TB2)
The NAC outputs of the N24 board. The outputs are configurable
as four class B outputs, two class A outputs, or one class A and
2 class B outputs. Output configuration is set by Dip Switches 3
and 4 in SW3 (See chart in item 10).
Any output configured as a Class B output requires a 4.7K ohm
resistor to be used as an EOL at the last device on the loop.
Outputs configured as Class A do not require an external EOL.
(See output example wiring diagrams for details on Page 4.)
These terminals are supervised and can accept synchronized
devices based on the settings of SW3.
These terminal strips are non-removable and accept wire
sizes from AWG12-AWG22.
6
DataLink Connection
For use with a LifeSafety Power NL1 board. See the NL1
manual for more information.
7
FAI Bridge Jumpers (JP1 & JP2)
These jumpers connect the FAI buss of the FPO power supply
system to the input(s) of the N24 to allow activation of the N24
by a dry contact connection on the FAI input of the FPO power
supply. In typical installations these jumpers are left OFF.
8
Test Buttons (SW1 & SW2)
These buttons allow testing of the N24 and its output
circuits without the need to alarm the entire FACP. Press SW1
to simulate activation of Input 1 and press SW2 to simulate
activation of Input 2.

N24 Installation Manual
4 5
9
Zone Inputs (TB3)
The inputs for activating the outputs of the N24 board. The
usage of these inputs varies based on the settings of the DIP
switches – see DIP Switch settings for more information
(item 10).
• INxA EOL (Class B) or Return + (Class A)
• INxB EOL (Class B) or Return – (Class A)
• INxC Input -
• INxD Input +
(See input example wiring diagrams for details on Page 4.)
These terminals are not supervised by the N24 board -
supervision of these terminals and the entire input loop is
performed by the FACP.
These terminals are removable and accept wire sizes from
AWG14-AWG22.
bk
Configuration DIP Switches (SW3)
These switches configure the operation of the N24 board.
Note that Switches 1 and 2 MUST be ON when using any of
the Output Synchronization Protocols.
Refer to the chart below for settings:
b
FlexIO Connection
This connector supplies the fault and FAI status between the
FPO power supply system and the N24 board. The appropriate
cable is supplied with the N24 board. See the FPO power supply
manual for more information.
b
Input Power LED
This LED indicates that power is available at the input of the
N24 board. If this LED is not lit, check the Input Fuse of the
N24 and voltage at the B1/B2 power input.
b
Status LEDs
These LEDs indicate the status of the N24 board as follows:
IN1 / IN2 Light RED when a valid signal is received at
the corresponding input terminals. These
LEDs may flash if a coded input is applied
to the respective input.
OUT1 - OUT4 Light YELLOW if a fault is detected on the
corresponding output terminals. Faults
detected include open, short, or overcurrent.
COMFLT Lights YELLOW if any fault condition
is detected by the N24 board. Faults
detected include open or shorted outputs,
output overcurrent, and invalid Dip switch
configurations.
N24 – Accessory Overview
Switch Number
1234567
Input Configuration
IN1 controls all outputs Off Off
IN2 not used
IN1 controls all outputs Off On
IN2 controls all outputs
IN1 controls OUT1 and OUT2 On Off
IN2 controls OUT3 and OUT4
Use this setting when using an
Output Synchronization Protocol setting On On
IN1 controls strobes
IN2 controls horns (only when IN1 is also active)
Output Wiring Configuration
Four Class B Outputs (OUT1, 2, 3, 4) Off Off
Two Class A Outputs (OUT1-2 & OUT3-4) Off On
Two Class B (OUT1, 2)
and One Class A Output (OUT3-4) On Off
One Class A Output (OUT1-2) and Two Class
B Outputs (OUT3,4) On On
Output Protocol Configuration
Steady (follower mode) on OUT1 and 2 Off Off Off
ANSI Temporal Code on OUT3 and 4
ANSI Temporal Code on OUT1, 2, 3, 4 Off Off On
Gentex Synchronization Protocol Off On On
Wheelock Synchronization Protocol On Off On
AMSECO/Potter Synchronization Protocol On On Off

N24 Installation Manual
4 5
N24 Input and Outputs
OUT4 OUT3 OUT2 OUT1OUT4 OUT3
4.7K 4.7K 4.7K 4.7K
OUT2 OUT1
Class A
N24 Outputs
Class B
IN1 or IN2
D
In from
FACP
CBA
IN1 or IN2
D
In from
FACP
CBA *Polarities shown
in Alarm Condition
*Polarities shown
in Alarm Condition
EOL
EOL
EOL values as
required by FACP
IN1 or IN2
D
In from
FACP
Return to
FACP
CBA
IN1 or IN2
D
Signaling
Devices
CBA
In from
FACP
Return to
FACP
Class A Class B
N24 Inputs

N24 Installation Manual
6 7
Symptom Possible Problem Information / Possible Solution
Green Input Power LED on
the N24 is not lit
Wiring missing or incorrect • Verify proper wiring between the FPO power supply and the N24
board
• Verify that the Input Fuse is placed in the proper position for the Buss
being used
Input Fuse ruptured, missing,
or placed incorrectly
• Verify that the fuse is intact and placed properly as described in this
manual
No voltage from FPO power
supply system
• Verify that voltage is available on the Buss being used to power the
N24 board
• See the FPO Power Supply manual for more information
Internal problem • Contact LifeSafety Power
Yellow COMFLT LED Lit on
the N24 Board
Output wiring problem • An Output Wiring problem will also light a Yellow "OUTx" LED for the
output with the problem
• Verify output wiring is as described in this manual
• Verify that the correct EOL is installed on Class B Outputs - for Class A
outputs, verify that the output loop returns to the N24 board properly
• Verify that no shorts, opens, or high impedances are present on the
output loop
Invalid configuration • Verify that the configuration DIP Switches are set in a valid configuration as
described in this manual
Internal problem • Contact LifeSafety Power
Yellow OUTx LED lit on the
N24 Board
• Verify output wiring is as described in this manual
• Verify that the correct EOL is installed on Class B Outputs - for Class A
outputs, verify that the output loop returns to the N24 board properly
• Verify that no shorts, opens, or high impedances are present on the
output loop
Internal problem • Contact LifeSafety Power
Notification Appliances not
Synchronized when N24 is
in alarm
Switch setting incorrect • If synchronization is to be provided by the N24, verify that the
Configuration DIP Switches are set for the proper synchronization
protocol. If synchronization is generated by the FACP or sync module
installed before the N24, the N24 must be set for "Follower Mode".
This also applies to any N24 installed after another N24 which is
generating synchronization
Notification Appliances not
activating when N24 is in
alarm
Output wiring problem • Verify output wiring is as described in this manual
• Verify that no shorts, opens, or high impedances are present on the
output loop
• Verify that the polarity of the Notification Appliances is correct with
respect to the N24's output terminals (polarity shown on the N24 is in
the alarm condition)
Input wiring problem • Verify that the input wiring is as described in this manual
• Verify that the polarity of the N24's input is correct with respect to the
FACP
• Verify that no shorts, opens, or high impedances are present on the
input loop
Output overcurrent condition • Verify that the total load on the output zone does not exceed 3A
• Verify that no shorts are present on the output loop
N24 Troubleshooting Chart

N24 Installation Manual
6 7
Power-Up and Basic System Verification Checklist Maintenance Instructions
The following are the maintenance instructions for the FPO
Series power supply system.
• Disconnect AC power prior to servicing
• Verify that there are no fault conditions displayed on any
of the yellow fault LEDs as indicated in this instruction
manual
• Verify the integrity of all fuses and replace as necessary
using the fuse ratings supplied in the Specifications sec-
tion of this manual
• The battery set should be checked and replaced if found
to be defective or if more than 4 years old (or as re-
quired by local code)
• Verify that all output voltages are within range as speci-
fied in the Specifications section of this document
Q 1. Ensure proper configuration of all jumpers and
switches.
Q 2. Apply AC power to the FPO power supply and
connect the battery set. Verify that no yellow
LEDs are lit on the FPO power supply.
Q 3. Ensure the Green “Input Power" LED on the
N24 board is lit and that no yellow fault LEDs
or red Zone Input LEDs are lit.
Q 4. Remove one wire from output zone 1 and verify
that the corresponding output fault LED lights.
Verify that the FACP is in fault. Reconnect the
wire and verify that the fault LED extinguish-
es. Place a short circuit across the output and
verify that the corresponding output fault LED
lights. Remove the short and verify that the
fault LED extinguishes. Repeat for all output
zones.
Q 5. Press each "Test" button on the N24 and verify
that the devices connected to the correspond-
ing output are activated.

N24 Installation Manual
8 9
One Class A Input, Two Class A Outputs, Strobes & Temporal Horns
The following are the maintenance instructions for the FPO Series power supply system.
DC1DC1
DC2DC2
BRBR
FPO switch set for 24V
FPO
FPO
FlexIO connectionFlexIO connection
FlexIOFlexIO
B1
B2
BR
IN1 IN2
A B C D A B C D
FlexIO FlexIO
B1
B2
BR
N24
OUT4
Horns -
Temporal Code
Strobes -
Steady Out
OUT3 OUT2 OUT1
FACP
Class A
Output
1
7

N24 Installation Manual
8 9
One Class B Input, Four Class A Gentex Synchronized Outputs
DC1DC1
DC2DC2
BRBR
FPO switch set for 24V
FPO
FPO
FlexIO connectionFlexIO connection
FlexIO connectionFlexIO connection
FlexIOFlexIO
B1
B2
BR
IN1 IN2
A B C D A B C D
FlexIO
B1
B2
BR
N24
OUT4 OUT3 OUT2 OUT1
FACP
without
synchronized
outputs
Class B
Output
1
7
B1
B2
BR
IN1 IN2
A B C D A B C D
FlexIO FlexIO
B1
B2
BR
N24
OUT4 OUT3 OUT2 OUT1
FACP’s
EOL
1
7

N24 Installation Manual
10 PB
Section
Two Class B Synchronized Inputs, Four Class B Synchronized Outputs (Follower Mode)
Note: The N24 outputs will repeat the synchronization pulses from the FACP
DC1DC1
DC2DC2
BRBR
FPO switch set for 24V
FPO
FPO
FlexIO connectionFlexIO connection
FlexIOFlexIO
B1
B2
BR
IN1 IN2
A B C D A B C D
FlexIO FlexIO
B1
B2
BR
N24
OUT4
Synchronized
Horn Strobes
OUT3 OUT2 OUT1
4.7K 4.7K 4.7K 4.7K
FACP’s
EOL
FACP’s
EOL
FACP
with
synchronized
outputs
Class B
Output
Class B
Output
1
7
IMPORTANT
All information, including illustrations, is believed to be reliable. Users, however, should independently evaluate the suitability of each
product for their particular application. LifeSafety Power makes no warranties as to the accuracy or completeness of the information,
and disclaims any liability regarding its use. LifeSafety Power’s only obligations are those in the LifeSafety Power Standard Terms
and Conditions of Sale for this product, and in no case will LifeSafety Power or its distributors be liable for any incidental, indirect, or
consequential damages arising from the sale, resale, use, or misuse of the product. Specifications are subject to change without notice.
In addition, LifeSafety Power reserves the right to make changes—without notification to Buyer—to processing or materials that do not
aect compliance with any applicable specification.
LifeSafety Power Inc.
899 E. Park Avenue
Libertyville, IL 60048 USA
www.lifesafetypower.com
Phone [phone]
[e-mail]
© 2019 LifeSafety Power, Inc.All rights reservedP03-027 Rev A08 07/19