Lantronix 900-422 User Manual

Page of 116
 
XPress DR+ User Guide 
12 
Chapter 2: Introduction 
This chapter provides basic information about the wired and wireless versions of the 
XPress DR+. The wireless version has two modes of operation: wireless and wired. In 
wired mode, the wireless functionality is not used, and the unit behaves identically to the 
wired XPress DR+. In wireless mode, the unit's behavior is wireless to serial, and the 
Ethernet ports are not functional.
 
Unless otherwise noted, information in this User Guide applies to both versions of the 
product. Information specific to the wireless version of the XPress DR+ unit is in  
Chapter 4: XPress DR+W. 
Note:
 In this User Guide we sometimes refer to the XPress DR+W as "the wireless unit" 
or the "wireless device server." 
Product Description 
The Lantronix XPress DR+ Industrial Device Server is a robust, feature-rich, and cost 
effective way to network-enable equipment in an industrial automation environment. The 
XPress DR+ provides two serial ports, two switched Ethernet ports, a wide power input 
range, and expanded environmental specifications, making it an ideal solution 
for connecting multiple asynchronous RS232, RS422, or RS485 serial devices to an 
Ethernet network. 
 
The internal two-port Ethernet switch allows the XPress DR+ to cascade connections 
from a single network drop to another Ethernet device or from one XPress DR+ to 
another and another, and so on. By leveraging a single network drop to connect multiple 
devices, the XPress DR+ greatly reduces device connectivity costs, reduces cabling cost 
and simplifies system changes and device moves.
 
By encapsulating serial data and transporting it over Ethernet, the XPress DR+ allows 
virtual serial links over Ethernet and IP (TCP/IP, UDP/IP) networks. As a result, you can 
extend limited distance, point-to-point, direct serial connections within the plant, 
throughout the facility, or across the global enterprise.  
The XPress DR+ provides an impressive list of features and functions enabling multiple 
industrial devices to be connected, controlled, configured, managed, and updated over a 
network. With two serial ports and two auto-sensing Ethernet ports, the XPress DR+ can 
easily connect multiple serial devices to a network and cascade from one XPress DR+ to 
another from a single network drop. 
Types of supported devices:
 
 
Programmable controllers (PLCs)  
 
Process controllers  
 
Motor drive controllers  
 
Power monitoring equipment