Secondary signal controller for the 1+n system, for connecting a customer-provided secondary signal unit (e.g. separate chime) with its own power supply for additional call signalling on the HTS/HTC 811-… in-house telephone.
The NSC 602-… is suitable for installation in a 55 mm-device box (e.g. under the in-house telephone) or in a junction box.
Two potential-free normally open contacts with a common reference point are available for door and storey calls.
The secondary signal controller behaves in the same way as an in-house telephone connected in parallel, i.e. it is not possible to connect an additional telephone in parallel.
