IDENTIFICATION
ID MAX.U500i
5 Terminals
Page 14 of 36
5.2 Power Supply
5.2.1 Power Supply via Connector X2
The supply voltage of 12–24 V DC has to be connected to terminal X2.
Pin Number at
Connector X2
Abbreviation
Description
1
GND
Ground – suppy voltage
2
12–24 V
Supply voltage 12–24 V DC ±10 %
Table 3: Pin assignment for power supply
CAUTION:
•
The reader has to be supplied by a limited power supply according EN 62368-1 Chapter Q.1, or
with a NEC Class 2/LPS certified power supply.
•
Each reader has to be supplied by a separate external power supply.
•
Reversing the polarity of the supply voltage on X2 may destroy the device.
•
External wiring for the power supply must fulfil the following norms/validation procedures:
Conductor Cross Section
Validation Procedure
from 0,5 mm² or bigger
IEC 60332-1-2 and IEC 60332-1-3
smaller than 0,5 mm²
IEC 60332-2-1 and IEC 60332-2-2
Table 4: Validation procedures for external wiring of the power supply
Fig. 7: Connector X2 pin assignment for power supply
