Siemens U-HN-S17 Fire Alarm Panel Interface Module

Siemens U-HN-S17 Fire Alarm Panel Interface Module is a compact, wall-mounted interface accessory designed for Siemens U-series fire alarm installations. The unit carries part number 6234B-E-14-24-DC and is listed as an indoor, red housing device in U-series documentation. As an interface module, it connects to the main fire alarm panel to enable interaction with peripheral signaling and control devices within a U-series system, extending the panel’s ability to integrate additional annunciation or interface components without modifying the central panel wiring. A marine variant exists in the family (U-HNH-S17-W), indicating the same interface concept is adapted for environmental conditions encountered in marine environments. The U-HN-S17 designation identifies this module as part of Siemens’ U-series ecosystem, a family of wall-mounted devices that support distributed signaling and interface tasks across fire alarm installations. This module is intended for installation by qualified personnel in accordance with applicable codes and Siemens installation guidelines, and it should be used only as part of a compatible Siemens fire alarm network.