Simplex 2975-9178 Surface Mount Steel Box, Red
QAR120.00The Simplex 2975-9178 is a heavy-duty, surface-mount steel back box designed specifically to house and protect Simplex addressable fire alarm manual pull stations.
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The Simplex 2975-9178 is a heavy-duty, surface-mount steel back box designed specifically to house and protect Simplex addressable fire alarm manual pull stations.

4007ES fire alarm control units (FACUs) provide extensive installation, operator, and service features with point and module capacities suitable for a wide range of system applications. FACUs are configurable for stand-alone or networked fire control operation. The convenient and intuitive color touchscreen provides easy access for typical system response actions and for detailed system review or configuration updates with password control to limit user access. IDNet 2 addressable initiation communications and IDNAC addressable notification communications are standard features. Refer to data sheet S4007-0001 for 4007ES FACUs providing conventional notification

The Simplex 4090-9001 is a supervised Individual Addressable Module (IAM) designed to monitor normally open dry contacts and associated end-of-line resistors on Simplex IDNet or MAPNET II communication circuits. It receives both power and data over a two-wire addressable loop and provides a single addressable input point to the fire alarm control panel.
The module supports Class B supervised monitoring and allows up to 500 ft (152 m) of wiring between the IAM and the end-of-line resistor (400 ft when used with 2081-9044 overvoltage protectors). It is housed in a thermoplastic enclosure with screw terminals and includes a visible LED that flashes to indicate communication status.
The 4090-9001 mounts in a standard single-gang electrical box and is suitable for indoor environments up to 158°F (70°C), including attic or similar spaces.

The Simplex 4090-9002 is a compact Relay Individual Addressable Module (Relay IAM) designed to provide precise, remote auxiliary control through a Simplex fire alarm control panel. It utilizes the IDNet communication loop to draw both operating power and data, significantly streamlining installation and reducing wiring complexity.

The Simplex 4090-9007 Signal Individual Addressable Module (IAM) is an IDNet-compatible peripheral designed to provide a remote, supervised, and addressable interface between conventional notification appliances and a host fire alarm control panel (FACU)

4090-9116 Addressable IDNet Communications Isolators provide IDNet communications isolation to improve installation convenience and increase system integrity. Isolation is automatically activated when an output short circuit is detected and isolation can also be selected manually from the control panel to assist with troubleshooting wiring problems. Isolators power-up in isolation mode and are directed to connect by the control panel. If the output wiring is acceptable, the isolator will connect to the rest of the circuit. If the output wiring is shorted, the isolator remains isolated. The isolator reports back to the panel when it is in isolation mode and the extent of shorted wiring is reported back to the panel by identifying device addresses that are not communicating. [Isolators are assigned sequentially to low number addresses to expedite SLC power-up.] During installation, earth faults frequently occur. Finding these faults normally requires extensive wiring disconnection. With the 4090-9116 Addressable IDNet Isolator, earth faults on the IDNet communications lines can be quickly located to assist in their repair and to restore the system wiring to normal.

Trim plate, galvanized steel, with LED viewing window; includes mounting screws.


The Simplex 4098-9733 is a TrueAlarm analog addressable heat sensor designed for use with compatible Simplex IDNet or MAPNET II fire alarm control units. It digitally transmits analog temperature data to the control panel, where alarm decisions are made based on programmable fixed temperature and optional rate-of-rise criteria. The sensor provides selectable fixed temperature operation at 135°F (57.2°C) or 155°F (68°C), with optional rate-of-rise detection selectable at 15°F or 20°F per minute (8.3°C or 11.1°C per minute). The device is self-restoring and uses rate-compensated sensing for accurate local temperature measurement. TrueAlarm processing at the control unit includes peak value logging, environmental compensation, and NFPA 72 compliant sensitivity monitoring. The sensor mounts to compatible 4098-series TrueAlarm bases (sold separately).

The Simplex 4098-9755 is a compact addressable duct smoke sensor housing designed for detecting smoke within HVAC duct systems. It includes a factory-installed 4098-9714 TrueAlarm photoelectric smoke sensor and operates using IDNet or MAPNET II two-wire communications, which also supply its operating power.
This model provides intelligent analog sensing, digitally transmitting sensor data to the fire alarm control panel for analysis, environmental compensation, and programmable sensitivity management. The control panel determines alarm thresholds, monitors sensor dirt accumulation, logs peak activity, and performs automatic calibration checks to reduce nuisance alarms.
The 4098-9755 does not include relay outputs (basic housing model). A clear polycarbonate cover allows visual inspection, and built-in test ports enable functional smoke testing without removing the cover. Sampling tubes are ordered separately and selected based on duct width.
This duct housing is UL listed to UL 268A for duct applications and is intended as a secondary detection device within HVAC systems, not as a substitute for open-area smoke detection.

The Simplex 4098-9764 is an addressable TrueAlarm multi-sensor detector that combines photoelectric smoke sensing and thermal heat sensing in a single housing. By continuously communicating analog data to a compatible Simplex fire alarm control unit (FACU), the system applies a “TrueSense” covariance algorithm to analyze both activities simultaneously. This dual-criteria evaluation allows the system to drastically reduce nuisance alarms while responding much faster to hot, flaming fires

TrueAlarm sensor bases include addressable electronics that monitor the detachable photoelectric or heat sensors at all times. The base digitizes each sensor’s output and sends it to the fire alarm control panel every four seconds.
TrueAlarm sensors use the same base, so you can swap sensor types to match each location. You can also swap sensors during construction.
When dust levels rise, install a heat sensor instead of covering a smoke sensor and taking it out of service. You do not need to reprogram the panel. The panel may show the wrong sensor type, but the heat sensor still runs at a default setting and provides heat detection at that spot.