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3: Installation and Hardware
XPress DR+ User Guide 22
Power Requirements
As with most industrial automation devices, the XPress DR+ does not ship with a power
supply. Its flexible power input circuit allows the product to be powered by any 9-30 VDC
or 9-24 VAC power supply that can provide the 2.3-Watt maximum required by the
XPress DR+.
In addition to the wide power input range, the XPress DR+ provides:
2K VAC and 2.8K VDC galvanic isolation between the power input and the
Ethernet ports
2K VAC and 2.8K VDC galvanic isolation between the power input and the serial
ports
Reset Switch
The XPress DR+ includes a hardware reset switch located in the small hole above the
power connector. Pressing the reset switch provides a hardware reboot of the XPress
DR+. The hardware reset does not reset or change the configuration of the XPress DR+.
(See Figure 3-2. Front Panel Layout).
Figure 3-8. Reset Switch
Caution: Even though a chassis ground is not required for operation, it is
mandatory for protection against transient voltages and ESD. A chassis
ground must be connected to earth.