Optional Devices System Overview
NFS-640 Installation Manual P/N 51332:B1 12/01/2003 17
2.4 Optional Devices
Several optional components can be installed within the NFS-640 system. This list provides only a
sample of common equipment; for a complete list of what is available, refer to Appendix C
“Compatible Equipment” and for a list of conventional equipment, refer to the Device
Compatibility Chart.
Network Control Annunciator - NCA. Provides a text-based, 24 VDC powered, display and
control device for Noti•Fire•Net. It incorporates a large LCD display and a silicone-rubber
QWERTY keypad. It will display all events from a Noti•Fire•Net system.
Network Control Module - NCM-W/F. The NCM is an interface between the panel and
Noti•Fire•Net. It comes in two models: wire and fiber-optic cable. Refer to the NCM-W/F
Installation Document for more information and installation instructions.
Loop Expander Module - LEM-320. The LEM plugs into the control panel, expanding the
board’s function to control two Signaling Line Circuits (SLCs). Each NFS-640 can have one LEM.
Refer to Section 3.5 “Installing the Control Panel” for installation instructions.
Auxiliary Power Supply - APS-6R. The optional Auxiliary Power Supply is a 150W cabinet-
mounted power supply, designed to power devices that require filtered, non-resettable power, such
as XP Transponder modules, NAC modules, and addressable Notifier appliance circuit modules.
The APS-6R provides three 24 VDC output circuits (6 A total in alarm, 4 A continuous): two
power-limited circuits (3 A each) and one non-power-limited circuit (6 A). Refer to the APS-6R
Instruction Manual for further information and installation instructions.
Addressable Charger/Power Supply - ACPS-2406. The optional ACPS-2406 is an
addressable loop-based power supply and battery charger. This cabinet-mounted unit provides four
individually addressable Notification Appliance Circuits. In addition, each circuit can provide
notification appliance synchronization without an additional module. The unit charges 7 to 25 AH
batteries with full supervision. The ACPS-2406 provides up to four 24 VDC (filtered) output
circuits (2.5 A max each, 5.0 A total continuous, 6.0 A during a fire alarm
). Refer to the ACPS-
2406 Instruction Manual for further information, installation instructions, and battery calculations.
Batteries and Battery Boxes. The control panel uses only sealed lead-acid batteries for
standby power. Maximum battery capacity is 55 AH (ampere-hour). Minimum battery capacity
depends upon your system configuration; absolute minimum is 12 AH. CAB-4 Series backboxes
provide space for two 25 AH (or smaller) batteries. Use external battery boxes if your installation
requires larger capacity batteries. Battery boxes mount directly below the main cabinet. Battery box
model NFS-LBB holds batteries up to 55 AH. Refer to Section 4.2 “NFPA 72-1999 Central or
Remote Station Fire Alarm System (Protected Premises Unit)” and Section A.3 “Calculating the
Battery Requirements” for further information. See Battery/Peripherals Enclosure document for
backbox measurements and installation instructions.
Universal Digital Alarm Communicator/Transmitter (UDACT). Transmits system status to
UL-listed Central Station Receivers over a public switched telephone network. Mounting is in a
CAB-4 Series backbox or remotely in the ABS-8R enclosure. The unit connects to the EIA-485
annunciator port and 24 VDC (nominal) power. Refer to the UDACT Instruction Manual for further
information and installation instructions.
Transmitter Module - TM-4. The TM-4 includes three reverse polarity outputs and a Fire
Municipal Box Trip in a single module. It provides a means for the FACP to control Alarm,
Trouble, and Supervisory reverse polarity outputs (15mA, 24 VDC nominal) or a Fire Municipal
Box Trip output. All output circuits are supervised. The Transmitter Module communicates over
the standard EIA-485 connection like an ACS device and mounts easily in standard module
locations within the cabinet or external boxes. Refer to the Transmitter Module TM-4 installation
document for further information and installation instructions.
Universal Zone Coder - UZC-256. A circuit board, used for NAC coding applications, that
provides three NAC output circuits and up to 256 zone codes. Refer to the UZC-256 Universal
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