
Introduction
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This manual describes the family of DSTni-XPress DR Device Servers, including the DSTni-
XPress DR Device Server and the DSTni-XPress DR-IAP Device Server with Industrial
Automation Protocols.
Most of the material in this manual applies to all of the DSTni-XPress DR products.
However, in some cases there will be some features that apply to only one product. In those
cases, a note will explain the variation.
Note: In most cases DSTni-XPress DR refers to DSTni-XPress DR and DSTni-XPress DR-
IAP.
1.1 DSTni-XPress DR
The DSTni-XPress DR Device Server connects serial devices to Ethernet networks using the
IP protocol family (TCP for connection-oriented stream applications and UDP for datagram
applications). A few of the different types of serial devices supported are listed below:
• Time/Attendance Clocks and Terminals
• ATM Machines
• CNC Controllers
• Data Collection Devices
• Universal Power Supply (UPS) Management Units
• Telecommunications Equipment
• Data Display Devices
• Security Alarms and Access Control Devices
• Handheld Instruments
• Modems
The DSTni-XPress DR connects these devices through a TCP data channel or through a
Telnet connection to computers or another Device Server. Datagrams can be sent by UDP.
DSTni-XPress DR User Guide 1-1
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