RUGGEDCOM RST2228
Installation Guide
Chapter 2
Installing the Device
Connecting High AC/DC Power 13
DANGER!
Electrocution hazard – risk of serious personal injury or death. The device may have two power
supplies equipped, which may be connected to separate power sources. Make sure all power sources
are off before servicing the power supply terminals.
CAUTION!
Electrical hazard – risk of damage to equipment. Do not exceed the power supply voltage ratings
for each power supply input. For example, if PS1 is a low DC power supply, do not connect the PS1
terminals to a high AC/DC power source.
IMPORTANT!
• A circuit breaker rated no higher than 20 A must be installed between the device and the supply
mains.
• Whenever possible, use a separate circuit breaker for each power supply.
• For maximum redundancy in a dual power supply configuration, use two independent power
sources.
• A socket outlet/disconnect device must be installed near the device and be easily accessible.
• Equipment must be installed according to applicable local wiring codes and standards.
CONTENTS
• Section2.5.1, “Connecting High AC/DC Power”
• Section2.5.2, “Connecting Low DC Power”
• Section2.5.3, “Wiring Examples”
Section2.5.1
Connecting High AC/DC Power
To connect a high AC/DC power supply to the device, do the following:
DANGER!
Electrocution hazard – risk of death, serious personal injury and/or damage to the device. Make sure
the supplied cover is always installed over high voltage screw-type terminal blocks.
CAUTION!
Electrical hazard – risk of damage to equipment. Do not connect AC power cables to a DC power supply
terminal block. Damage to the power supply may occur.
NOTE
The screw-type terminal block is installed using Phillips screws and compression plates, allowing either
bare wire connections or crimped terminal lugs. Use #6 size ring lugs for secure, reliable screws, which
must be removed to make connections.
1. Connect the power supply terminal block to the device.
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