Product Description (English):

The PSM-108B microphone fault indicator module is an intelligent add-on unit designed for precise fault monitoring in compliance with VDE 0828 and EN 60849 standards. It is mounted directly to a selected microphone station and provides real-time, selective indication of up to eight distinct system faults—ensuring maximum operational safety in voice alarm and public address systems.

Powered via the PFK-101 connection cable (5 V), the PSM-108B features ultra-low power consumption, making it ideal for continuous operation. Thanks to its slim and compact design, the module can be easily attached to existing microphone stations.

Each of the eight possible faults is indicated individually, allowing for quick diagnosis and targeted maintenance.

Monitored Fault Types:

• A – Main power supply failure
• B – Backup power supply failure
• C – Amplifier failure
• D – Impedance change in speaker line
• E – Microphone or cable failure
• F – Siren or message module failure
• G – Bus interruption or device failure
• H – Memory error or module malfunction

Technical Data:

• Model: PSM-108B
• Product type: Microphone fault indicator module
• Power supply: Via PFK-101 connection cable (5 V)
• Current consumption:
• Minimum: 150 µA
• Maximum: 5 mA (continuous current)
• Number of fault indicators: 8 (one per fault type)
• Dimensions (W x H x D): 55 x 45 x 182 mm
• Weight: 300 g
• Mounting: Directly on microphone station (as an extension)

Included Items:

• 1x PSM-108B microphone fault module
• 1x PFK-101 connection cable
• 1x User manual

Special Features:

• Standards-compliant fault monitoring (VDE 0828 / EN 60849)
• Real-time selective fault indication at intercom station
• Ultra-efficient power consumption
• Modular design for easy retrofitting