Ground
In Ground security reference yellow/green
External power supply:
Must conform to CEE/EEC EN60950 standard
9V to 16 Volts ± 5% (regulated) 1,5 Amp minimum (peak)
Power may come from a 12Volt Wiegand power supply, conforming to the
Security Industry Association's Wiegand standard March 1995, able to
deliver 9 Watts.
In standard operating activity, typical power consumption is 4.5 Watts.
In extreme temperature conditions, with all options (USB Flash drive, 12V
output for Wiegand in), maximum power consumption is up to 9 Watts.
These terminals make use of POE functionality; if Ethernet network is POE
compatible, power supply may come from Ethernet wiring.
For systems placed in other building than supervisor one's, the electrical security
is guaranteed with a "ground connection" to the terminal.
For a higher susceptibility level, we recommend to the installer to connect a
"ground connection" to the terminal.
MA 500 / MA 500+ Series: A cable terminal connected to "ground security
reference" must be tied to the fixation designed for (see p. 16-17).
OMA 500 Series: the yellow/green wire in power supply cable must be connected
to "ground security reference".