Transmission of decoding signal for lock cylinder protected by draw-protection fitting involves second transmitter-receiver on front of draw-protection fitting

摘要

An arrangement for transmitting the decoding signal for a lock cylinder (11) protected by a draw-protection fitting (15) has a transmitting/receiving unit for the contact-free reception of the decoding signal that has at least one first transmitter-receiver (14) which is located in the front end face region (13) of the lock cylinder. A second transmitter-receiver (16) is located on the front side (19) of the draw-protection fitting which is in signal communication with a third transmitter-receiver (20) on the back side of the draw-protection fitting. This is in signal communication with the first transmitter-receiver on the end face of the lock cylinder.