Lantronix 900-422 Benutzerhandbuch

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Chapter 3: Installation and Hardware 
 XPress DR+ User Guide 
24 
Multi-Drop Ethernet Connections
 
Although there are two Ethernet ports, the XPress DR+ only has one MAC address and 
IP address. Either port can be used as the primary connection with the other used 
to inter-connect other Ethernet devices or cascade from one XPress DR+ to another.
 
Figure 3-7. Multi-Drop Ethernet Connections 
 
 
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 causes a hardware reboot of the 
XPress DR+. The hardware reset does not reset or change the configuration of the 
XPress DR+.