Connecting High Ac/Dc Power - Siemens RUGGEDCOM RSG2488 Installation Manual

Chapter 2
Installing the Device
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 connect wiring to unused power supply input
terminals. For instance, if a Low DC power supply is installed in the PS1 slot, do not connect the PS1
High AC/DC terminals to a power source.
IMPORTANT!
• In a high AC/DC and low DC (24/48 V) power supply arrangement, the placement of the AC and
DC power supplies is not slot-dependent. However, if a high AC/DC power supply is installed in slot
PS1, the high AC/DC wiring must be connected to the high terminal block PS1 terminals. If a low DC
power supply is installed in slot PS1, the low DC wiring must be made to the low terminal block PS1
terminals. High voltage wiring is always made to the upper Hi terminal block and low voltage (24/48
V) wiring is always made to the lower Lo terminal block.
• Use only #16 gage wiring when connecting terminal blocks.
• The maximum wire length between the terminal block and power source must not exceed 6 m (20 ft)
for 24 V power supplies or 18 m (60 ft) for 48 V power supplies.
• 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
• Section 2.7.1, "Connecting High AC/DC Power"
• Section 2.7.2, "Connecting Low DC Power"
• Section 2.7.3, "Wiring Examples"
Section 2.7.1

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.
12
RUGGEDCOM RSG2488
Installation Guide
Connecting High AC/DC Power