Hochiki FireNET Fire Alarm Control Panel

The FireNET™ 4127 control panel is an analog addressable fire alarm panel containing 2 or 4 SLC loops with each loop supporting 127 devices of any combination (sensors or modules), and 127 analog sounder bases, for a possible total of 254 points. Communication between devices is transferred through standard cable (shielded or twisted pair is not required). Each panel includes a 5.25 amp power supply and has 4 on board NAC circuits. An RS-485 bus provides communication to the panel network, while the RS-232 interface allows the convenience of programming via a PC. The system will support a variety of Hochiki devices: photo, ion and heat sensors, which contain a unique, patented sensor design incorporating automatic drift compensation and day/night sensitivity mode. Additional devices include contact monitors, relay controllers, supervised auxiliary output and short circuit isolator modules. In addition, interfaces to conventional detection systems can be established by using a conventional zone-monitoring module. The Loop Explorer Windows® Software interface provides the installer with fingertip access to installation programming and diagnostic tools. An Auto-learn feature offers the convenience for quick start applications. Add to this a reputation for high quality and dedicated service makes this an exceptional product both in performance and value.

• UL 864 9th edition Listed
• Analog design using Hochiki’s advanced DCP protocol for fast and robust communication
• Up to 127 sensors & modules, plus 127 analog sounder bases, for a total of 254 points possible per loop
• Uses standard wire, no shielded or twisted pair required on SLC loops
• Supports Class B (style 4) and Class A (style 6 or 7) SLC loops
• 4 on board Class B (style Y) NAC circuits rated at 2.5 Amp each
• Programmable sensitivity levels per device & automatic day/night sensitivity modes
• Automatic daily calibration & drift compensation routine
• Large 8-line x 40-character LCD display (320 char.)
• 2 or 4 loop versions (800 addresses/sub-addr. max.)
• Dual RS-485 bus for panel network
• 2 built-in RS-232 interfaces for programming via a PC and serial printer interface
• 5 on board programmable Form C relays rated at 1 amp at 30VDC (Fire1, Fire2, trouble, supervisory, aux.)
• 500mA of auxiliary power available rated at 24 VDC
• Loop Explorer Windows® configuration utility
• *500 network wide software zones
• Network Capability of up to 64 panels
• RS485 slave bus for expansion - up to 31 FN-4127-IO boards or up to 15 FN-LCD-S serial annunciators and up to16 FN-4127-IO boards
• Auto-learn feature
• Built in help and alarm information screens
• Fire Drill test function
• Walk Test function
• Alarm Verification feature
• FireNET is UL listed for Central Station Service when used with the Bosch D9068 contact dialer
• Operates on 120VAC or 240VAC input voltage
• Powerful & versatile Cause & Effect programming (up to 500 maximum, network wide) including:
*Cause & Effect action
*Disable function configuration
*Test mode configuration

Primary AC 120VAC @ 2.1 Amps 60hz or 220VAC @ 1.1Amps 50hz
Output DC 24VDC @ 5.25 Amps (4 Amps availble for system power)
Power Supply 5.25 Amps integrated
Charger Current 1.5 Amps max.
Dimensions 14.5" W x 24" H x 5" D
Weight 31 lbs. (without batteries)
Color Red (optional gray)
Material ABS/steel enclosure
Display 8 line x 40 character LCD (320 characters total)
Network Dual RS485 ports (64 panels max.)
Zones 500 network wide software zones per system
SLC loops 2 or 4 (class A, "style 6 or 7" or class B, "style 4")
Devices per loop 127 sensors & modules, plus 127 analog sounder bases, 254 total
Addresses per panel (800 addresses+sub-addresses max. per panel)
NAC Outputs (4) 2.5 Amps @ 24VDC (class B)
Relay Outputs (5) Form C 1 Amp @ 30VDC
Voltage Outputs (3) 500mA @ 24VDC
Aux. Power 500mA @ 24VDC
Aux. Inputs (8) digital pull downs
PC Port / Printer RS232
Operating Temp. 32°F (0°C) 120°F (49°C)
Relative Humidity 85% RH Non-Condsensing


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