Simplex 4098-9794 is a modular TrueAlarm addressable sensor base with a built-in piezoelectric alarm sounder, for use with interchangeable TrueAlarm photoelectric or heat sensors ordered separately.
It does two jobs at one location. It is a full TrueAlarm base, carrying the addressable electronics and address DIP switch under the removable sensor head, and it is a UL 464 certified audible notification appliance in its own right. That makes it a common choice for sleeping-room and dwelling-unit designs where a local sounder is required at the detector. The sounder can be powered from a steady 24 VDC source or from a compatible notification appliance circuit; when NAC powered it sounds when the NAC is in alarm and follows the NAC pattern, such as Temporal or March Time. It can also be activated manually from the fire alarm control unit.
Specifications
| Sounder output |
88 dBA minimum at 10 ft (3 m), per UL 464 and UL 268 |
| Sounder voltage |
18 to 32 VDC from a steady external source or from a NAC |
| Alarm current |
20 mA at 24 VDC; 24 mA maximum at 32 VDC |
| Power supervision |
Selectable: supervised for continuous 24 VDC, or unsupervised when NAC powered |
| Communications |
IDNet or MAPNET II, auto-selected, one address per base |
| Terminals |
Screw terminals for in/out wiring, 18 to 14 AWG |
| Compatible sensors |
4098-9714 photoelectric smoke sensor and 4098-9733 heat sensor, ordered separately |
| Housing color |
Frost white |
| Mounting |
4 in. octagonal or square box, 1-1/2 in. deep; or single gang, 2 in. deep |
Installation notes
- Select supervised operation for a continuous 24 VDC feed so loss of power is reported; select unsupervised when the sounder is fed from a NAC.
- Sound output louvers extend from the front to the side of the base, so blocking the side of the base reduces output.
- The base ships without a sensor head. The address stays in the base, so sensors can be serviced without reprogramming.
Compatible with
Related models
More: Simplex · sounder bases.
