NISTA DEVICES GmbH 2013 © All Rights Reserved106 Installation6.1 Physical installationThe Door phone can be mounted on the installation bracket provided with the unit.To install the Door Phone Touch keypad on the wall:Open the Door Phone case by rotating the secret screw on the bottom of the unit.Figure 6-1 Door Phone wall installationTo install wall bracket:1. Measure and mark the location of the holes on the wall, where holes will be drilled.2. Drill the holes and insert the wall dowels into the holes.3. Attach rubber mat on the wall and then metal installation wall bracket using the provided wall screws. ( SeeFigure 6-1 ). The rubber mat shall be directed to a wall with the rugged side.4. Connect all required wired connections5. Put the Door Phone’s front panel into the latch, then close the case and lock the secret screw