User`s guide

Chapter 4 IA Profiles and Procedures 43
TCP socket (or TCP socket service)
type of network service that uses TCP to ensure reliability. When this
manual discusses TCP sockets, it means that IA protocol messages are
encapsulated in network packets and transported across the network
using a standard network service. Many applications support
connections to devices using TCP socket.
TCP tunnel
TCP socket connection in which a master is connected to the serial port
of one device server and a slave to the serial port of another
Digi One IAP.
UDP sockets (or UDP socket service)
similar to TCP socket service (discussed above) except that the UDP
protocol is used instead of TCP, which means that the reliability service
TCP performs is not provided. Advantages of UDP socket service are
slightly less protocol overhead and support for multicasting. Some
applications support connections to devices using TCP socket.
UDP tunnel
a UDP socket configuration in which a master is connected to the serial
port of one device server and a slave to the serial port of another Digi
device.
Serial Bridge: Master and Slave Connected to Digi Ports
About This Profile
Use this profile to connect a protocol master to the serial port of one device
server and the protocol slave (or slaves) to the serial port of another device
server. This profile, which is often called a serial bridge, is applicable to
environments that use most IA serial port protocols and to multi-master
environments as well. The network is completely transparent to the serial
devices, which means they do not have to be reconfigured.
Configuration Options
The serial port connections must be configured to meet the requirements of