TELEFIRE TFL-1N Auxiliary Signaling Indicator for Conventional Detectors

The Telefire TFL-1N is a remote signaling indicator for conventional fire detectors that enables auxiliary indication for detectors located in hidden areas such as closed rooms and above acoustic ceilings. The device is activated directly from the detector using the detection line’s power without the need for auxiliary power sources.

Operating Principle

The TFL-1N can be connected to a single detector or to a group of detectors. When activated, the remote signaling indicator flashes both its LEDs alternately, thereby drawing attention to an activated detector. The signaling indicator is especially designed for low power consumption so as not to overload the IDC line.

Technical Specifications

• Dimensions (W x H x D): 85 x 60 x 20 mm
• Weight: 30 grams
• Operating temperature range: -10°C – +60°C
• Operating voltage (supplied by the detector): 3-25 Vdc
• Maximum current consumption at 5 Vdc: 7 mA
• Maximum current consumption at 10 Vdc: 28 mA
• Flash rate: ~1.3 Hz

Compatibility with Conventional Detectors

The TFL-1N auxiliary signaling indicator for conventional detectors is compatible with the following bases:

• TFB-180 standard base – when used with TFO-480, TFH-280, or TPH-482
• TFB-110 standard detector base – when used with TFO-440, TFH-220F, or TPH-442

Operating Modes

The TFL-1N can operate in two different modes:

Private Mode Indicator

In this mode, the indicator is connected to a single detector and signals when that detector is activated.

Summing Mode Indicator

In this mode, the indicator is connected to a group of detectors and signals when any of them is activated.

Installation and Wiring

During installation, all power supplies must be disconnected from the system before performing any work. Planning of the quantity and location of detectors and auxiliary indicators shall be done according to local codes and regulations. The TFL-1N connects directly to the detector base, with separate wiring ensuring visibility of the indication in locations where the detector is not visible.

Certifications

Telefire’s TFL-1N auxiliary signaling indicator for conventional detectors has the following approvals:

• EN 54 Certified
• UL 268 and UL 521 Compliant
• GOST Compliant
• IS 1220 Certified
• CE Marked