The PEM-104B is a programmable alarm extension module designed for use with the PDM-208B and PFM-308B microphone stations. It provides fast and direct activation of predefined alarm tones in up to four separate speaker zones—ideal for use in voice alarm systems where reliability and speed are critical.

The module features four covered, programmable alarm buttons, each assignable to a specific alarm tone and speaker group. Alarms are triggered with a single press—there’s no need to additionally press a speak or confirmation button. For safety and clarity, the buttons are mutually locked: activating one button disables the others until a manual reset is performed by holding down the Clear button.

The PEM-104B is an ideal solution for environments that require clearly structured and quick-response alarm signaling—such as schools, industrial facilities, or public institutions.

Technical Specifications:

General:

• Product type: Alarm extension module
• Model: PEM-104B
• Compatibility: PDM-208B, PFM-308B microphone stations

Functionality:

• 4 covered, individually programmable alarm buttons
• Triggers alarm tones in 4 speaker groups
• No additional push-to-talk button required
• Buttons are mutually locked to prevent multiple alarms
• Reset via Clear button (hold to reset)

Application:

• Extension for voice alarm microphone stations
• Fast and reliable alarm tone activation
• Ideal for use in safety-critical zones with pre-defined alarm plans

Key Features:

• Easy integration into existing systems
• Clear, secure alarm activation process
• Covered buttons to prevent accidental operation