AJAX KeyPad Fibra User Manual page 16

7. If the keypad is not the last device in the connection line, prepare a second
cable in advance. The ends of the wires of the rst and second cables,
which will be inserted into the keypad terminals, must be tinned and
soldered together, or crimped with special tips.
8. Attach the mounting panel to a vertical surface at the chosen installation
location using the bundled screws. When attaching, use all xing points.
One of them, in the perforated part of the mounting panel, is needed to
trigger the tamper in case of an attempt to tear the device off the surface.
9. Install the KeyPad Fibra board on special mounting panel holders.
10. Connect the wires to the terminals according to the scheme below. Follow
the polarity and connection order of the wires. Securely fasten the wires to
the terminals.
+24V — power supply terminal of 24 V⎓.
А, B — signal terminals.
GND — ground.
11. If the keypad is the last in the line, install a terminating resistor in case of
Beam (Radial) connection by connecting it to the signal terminals of the
device. For Ring connection terminating resistor is not needed.
More about topologies to connect Ajax devices
If possible, we recommend connecting devices using the Ring topology (hub —