Karel MS26S, Инструкция по установке и обслуживанию, Страница: 53 / 62

Karel MS26s Installation & Maintenance Guide
Edition 3.1 45
DY01 doorphone has a ring button on it. When a doorphone user presses this
button the telephone of the operator rings. But if desired this facility may be
cancelled and an external ringer can be connected to the ring button. For this:
1. Loose the screws at the top and the bottom of the doorphone and open
the front cover.
2. Loose the screws at the back of the ring button and disconnect the two-
wire cable between the doorphone card and the ring button.
3. Pass the power cables of the ringer through the data cable hole at the
back cover of the doorphone box.
4. Connect the power of the external ringer through the ring button.
5. Close the cover of the doorphone.
The following figure illustrates this connection.
Figure B-19