Thorn 976129 16 Indicator Module Circuit Board Card

Description:

The Thorn 976129 16 Indicator Module Circuit Board Card is used in addressable fire alarm control systems to provide sixteen programmable LED indicators for alarm, trouble, supervisory, and system status annunciation. Commonly installed in Autocall TFX-500M and TFX-800M fire alarm control panels serving commercial buildings, hospitals, schools, industrial facilities, and institutional life safety systems requiring visual status indication. Fire alarm technicians and system integrators use this indicator module for system expansion, annunciator replacement, preventive maintenance, and restoration of front-panel status indication.

Applications:

The Thorn 976129 16 Indicator Module interfaces with the MPIM Expansion Bus to provide sixteen programmable bi-color LED indicators that display alarm, trouble, sector, zone, and other system conditions as configured within compatible Autocall TFX fire alarm control panels. It is widely used in commercial and industrial fire detection systems where centralized visual annunciation of system events is essential for efficient monitoring and emergency response.

Technical Specifications:

• Brand: Thorn Automated Systems / Autocall
• Part Number: 976129
• PCB Number: 900964
• Product Type: 16 Indicator Module Circuit Board Card
• Function: Programmable Alarm and Trouble Indicator Module
• Number of Indicators: 16 Bi-Color LEDs (Red/Yellow)
• Compatible Systems: Autocall TFX-500M and TFX-800M Fire Alarm Control Panels
• Communication Interface: MPIM Expansion Bus
• Supply Voltage: +5 VDC, +12 VDC
• Current Draw (Normal): 9 mA
• Current Draw (All LEDs On): 34 mA
• Indicator Current: 2.81 mA per LED
• Display Panel Dimensions: 6.75 × 5.25 × 0.75 in.
• PCB Dimensions: 5.25 × 5.00 × 0.50 in.
• Mounting: One Full Module Door Position
• Application: Fire Alarm System Status Annunciation
• Status: Discontinued by Manufacturer

Common Replacements:

• Thorn 976130 40 × 2 Indicator Module
• Thorn 976136 80 Indicator Module
• Thorn 976138 80 Indicator Module