Lantronix 900-422 User Manual

Page of 87
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 3-8. 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.