FPP-RNAC-8A-4C
|
Operation and Installation Guide | 1.0
Overview
4
Bosch Security Systems, Inc. | 8/09 | F01U025431-02
1.0 Overview
The FPP-RNAC-8A-4C is a Remote Notification
Appliance Circuit (NAC) Power Supply designed to
add four additional NACs (NFPA 72 Class B, Style Y
or Class A, Style Z) to a Fire Alarm Control Panel
(FACP).
The FPP-RNAC-8A-4C is supervised by the control
panel. It consists of the controller board, backup
batteries, and enclosure.
The FPP-RNAC-8A-4C is also compatible with any
UL Listed control unit utilizing:
•
reverse polarity supervised notification appliance
circuit (NAC) outputs, and
•
12 or 24 VDC regulated outputs.
Each output can be configured individually as a NAC
or constant 24 V auxiliary power supply.
1.1
Module Control
1.1.1 Option Bus Control
The FPP-RNAC-8A-4C can connect to the Option
Bus of the FPA-1000 or FPD-7024 Fire Alarm
Control/Communicator.
Refer to
Section
3.3
Option Bus Connections
on
page 14 for information on wiring.
1.1.2 Conventional NAC Input Control
For conventional panels, the FPP-RNAC-8A-4C
connects using the FACP’s NAC outputs that conform
to NFPA 72 Class A or B. Please refer to the control
panel’s NAC compatibility information.
1.2
Output Bell Operation
The FPP-RNAC-8A-4C can generate three pulsed
bell patterns on command in addition to steady
activation of the output:
•
Pulsed:
60 PPM (0.5 sec On, 0.5 sec Off)
•
NFPA Temporal:
In compliance with ANSI
standard S3.41: 0.5 sec On, 0.5 sec Off, 0.5 sec
On, 0.5 sec Off, 0.5 sec On, 1.5 sec Off, and so
on.
•
California March:
120 ppm (0.25 sec on,
0.25 sec off).
You can also implement SYNC protocols:
•
Wheelock SYNC Protocol
•
Gentex SYNC Protocol
•
System Sensor SYNC Protocol
All outputs are synchronized if the
conventional inputs are activating the
FPP-RNAC-8A-4C.
For option bus synchronization
information, refer to the control panel
documentation.
1.3
Power
Management
The controlling section of the board has un-
interruptible power. If AC line voltage is lost, the
power supply switches to battery backup.
1.4
Low AC Line Detection
Sensing circuitry detects a line input voltage below
85 VAC, then switches from the primary AC Line
voltage to battery backup.
1.5
Ground Fault Monitoring
The option bus and polarity reversal inputs are
electrically isolated from the local power supply and
indicating circuits. The FPP-RNAC-8A-4C supervises
itself for grounded field connections and indicates a
fault condition if one is found. This feature can be
disabled by opening Switch S4.
For UL864 installations, do not disable
ground fault monitoring.
1.6
Circuit Supervision
Each NAC is supervised for short-circuit and open
conditions using an end-of-line (EOL) resistor on the
loop. Devices on these loops must have a blocking
diode on their input so that the EOL supervision
resistor can be read when the polarity of the output is
reversed in the standby state. The devices activate
when the polarity is switched back to normal in an
alarm state. The EOL is programmable from 1 k
Ω
to
20 k
Ω
. This allows existing systems to be retrofitted.
1.7
Overvoltage Supervision
The power supply output is monitored for overvoltage
conditions. If an overvoltage condition exists (30 V or
more on battery leads without the battery connected),
the trouble relay and EOL relays open. In addition,
the trouble LED lights. On the option bus, AC fail,
ground fault, and NAC troubles are initiated.
