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9. Tighten the holding screw on the bottom of the keypad's enclosure. The
screw is needed for more reliable fastening and protection of the keypad
from quick dismantling.
Connecting a third-party power supply unit
When connecting a third-party power supply unit and using KeyPad
TouchScreen, follow the general electrical safety regulations for using electrical
appliances, as well as the requirements of regulatory legal acts on electrical
safety.
KeyPad TouchScreen is equipped with terminals for connecting 10.5V–14 V⎓
power supply unit. Recommended electrical parameters of the power supply
unit: 12 V⎓, current from 0.5 A. The connection of the external power supply is
recommended when you need a display to be always active and to avoid rapid
discharge of batteries.
When external power is connected, the pre-installed batteries are used as a
backup power source. Do not remove them when connecting the power supply.
Before installing the device, be sure to check the insulation of the wires for damage. Use
only a grounded power source. Do not disassemble the device under voltage. Do not use
the device with a damaged power cable.
To connect a third-party power supply unit:
1. Remove the SmartBracket mounting panel. Carefully break out the
perforated enclosure part to prepare the holes for the cable:
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