Siemens S30122-K7696-T313 telecommunications hardware (Hicom/HiPath/OpenScape PBX, SDH transmission) PBX Card / Module

The Siemens S30122-K7696-T313 is a TFE-S adapter box for connecting a door-entry unit (an entrance telephone or door intercom) to an OpenScape Business X3R, X3W, X5R or X5W system, and to the equivalent HiPath 33xx/35xx and HiPath 3800 systems. Unlike the plug-in cards, TFE-S is a standalone external box with a built-in amplifier that sits between the door intercom hardware and an analogue subscriber port on the PBX, and up to four can be connected per system to support multiple building entrances. Losing it disables intercom/door-release functionality for the entrance it serves rather than any general extension or trunk capacity, which makes it a straightforward, low-risk item to identify and replace since its role is narrow and self-contained. Genuine Siemens accessories of this kind remain a routine requirement for maintaining door-entry functionality on established OpenScape Business and HiPath installs. Confirm your exact system variant before ordering. Tech-Star is UK-based and ships worldwide; contact our sales team for current stock and pricing.