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SIMPLEX 4120 NETWORK FIRE INDICATOR PANEL
OPERATOR MANUAL
1.2
SYSTEM INTRODUCTION
A 4120 Fire Alarm Network System may comprise of the following Network Fire Alarm
panels, depending upon total network point capacity:
• 4120 Fire Alarm Panel for system with up to 1,000 network points
• 4120 Network Display Unit (NDU) with Status Command Centre, for systems with up to
2,500 network points.
1.2.1 4120 Fire Indication Panel
The Simplex 4120 is a microprocessor based Fire Alarm Control Panel which uses the latest
in life safety technology and is certified to Australian Standard AS1603.4. The 4120 Fire
Indicator Panel has the capacity to monitor and control up 1,000 devices . These devices
can either be conventional zones of detectors or analogue addressable devices. In the
event of AC mains loss, standby batteries provide a backup 24VDC supply.
The 4120 FIP uses a micro-controller with a Flash EPROM, allowing the use of laptop
computer to download custom program changes directly into the 4120 for easier on-site job
changes . Battery-backed RAM has been added to maintain important historical data, even
during a complete power-down of the system.
The 4120 also uses a switching power supply to provide up to 7 Amps of power at 24 VDC
for load devices and system operation, plus up to 3 Amps for battery charging
responsibilities. In addition, this power supply can communicate directly with the Master
Controller via internal serial communications, reporting such data as system voltage and
current usage and battery charging information.
The 4120 FIP has been designed to be a custom, factory configured system and when
delivered to the job site, becomes a totally field editable and configurable system in
response to unforeseen job changes.
To provide maximum efficiency in performing primary fire alarm functions, the 4120
Operator Interface Panel makes visible only the indication and interaction keys required in
an emergency situation .
Alarm, Isolation and Fault conditions are indicated at the operator's panel by dedicated
LEDs and a Piezo sounder. Each of these system conditions has a dedicated acknowledge
button.
A 2 line, 80 character alphanumeric LCD display is used to annunciate a 40 character
custom label message per device or circuit, the device point type (smoke detector, manual
call point, etc.), the current status of the device or circuit (alarm, fault etc.) as well as
operator prompts for acknowledging status changes or inputting commands.
The alphanumeric display will show various prompts and labels which are used to guide the
user through a sequenced operation for each abnormal condition.
Document No.: 4100-M004
June 1997
Issue 1.0
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