Approval

• SAE J1849

Completely Redesigned
The e-Q2B® electric siren includes a 200 W Class D audio amplifier for increased reliability and external diagnostics to monitor power, output voltage, and current monitoring. Features include park kill input, which immediately shuts off the siren when the vehicle is in the park, and electric horn ring input, which allows the user to cycle through siren tones. The e-Q2B also has an audio output that works with the Federal Signal Rumbler Traffic Clearing System.

Improved Amplifier
Using DSP circuitry, the e-Q2B amplifier accurately reproduces the trademarked “Q” wail rather than relying on a simple digital recording. DSP also enables the product to function manually or automatically for hands-free operations (Electric Horn Ring Transfer). The new Class D engineered system reduces operating current to 20 A and provides a more robust, reliable system.

Improved Keypad
The push-button backlit, membrane switches and robust rubberized knob provide a tactile feel to easily activate siren tones, air horn, PA, and radio rebroadcast. In addition, the detachable push-to-talk microphone can be easily removed and replaced with a customized plug. Volume control for the microphone is located directly on the keypad for added convenience.

Optional Electric Siren Control
Three external inputs allow externally configured foot switches to control the manual wail, brake, and electric air horn.

Registered Trademark
The distinctive sound of the Q2B electro-mechanical siren is a registered trademark owned by Federal Signal Corporation.