5
EZ864 PY Block diagram
2.3
Power Supply
The power supply of the
EZ864 PY
Terminal has to be a single voltage source of POWER 5V-30V capable of
providing a peak during an active transmission. The
EZ864 PY
Terminal is protected from supply voltage
reversal. An internal fuse ensures an electrical safety according to EN60950-1. This fuse is not removable. A
fast acting fuse 0.8A with melting is necessary to use with the
EZ864 PY
at a 24V power supply system for
vehicles. The power supply must be compliant with the EN60950 guidelines.
Pin
Signal name
Use
1
POWER
Input Power supply range 5-30V
2
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3
GND
Ground
4
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Pin assignment of the plug for power supply and relay
Male 4-pole plug for power supply
2.3.1 Supply voltage requirements
The DC power supply must be connected to the POWER input:
• Input voltage range 5 - 30V DC
• Nominal Voltage 12V DC
• Power Supply current rating: max. 2A @12V
• Power Supply ripple: max. 120mV
• Input current in idle mode: 20mA @ 12V
• Input average current in communication mode: 100mA @ 12V
1
2
4
3
Pin assignment
1 – Power
2 – NC
3 – GND
4 – NC
