TKS repeater REG features: Active component for extending a Gira door communication system with audio and video function. Range extension and increase in the number of participants when using additional control devices. Amplification of the audio and data signals of the door communication system in both directions. Repeater mode: Connects two line segments to each other to double the number of participants in a video or audio door communication system and the line range. Important: An additional control device is required to supply the second line segment. Multi-call mode: In multi-call mode, the entire system is divided into several lines (one main line, up to five secondary lines), which are connected to each other via TKS repeaters. Each line is supplied by its own control device. In multi-call mode, up to five TKS repeaters can be used in one system. Notes: Data backup The configuration of the TKS repeater can be saved on a microSD card. Commissioning The TKS repeater can also be commissioned without a microSD card.