User`s guide

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Introduction
 Global System for Mobile communication (GSM) (Only supported in Digi
Connect WAN and Digi Connect RG)
 General Packet Radio Service (GPRS) (Only supported in Digi Connect WAN
and Digi Connect RG)
 Enhanced Data Rates for Global Evolution (EDGE) (Only supported in Digi
Connect WAN and Digi Connect RG)
Following is an overview of some of the services provided by these protocols.
Serial Data Communication over TCP and UDP
The Digi Connect family supports serial data communication over TCP and UDP. The
only exception is the Digi Connect WAN which does not support UDP. Key features
include:
 Serial data communication over TCP, also known as autoconnect and tcpserial
can automatically perform the following functions:
– Establish bidirectional TCP connections, known as autoconnections, between
the serial device and a server or other network device. Autoconnections can be
made based on data and or serial hardware signals.
– Control forwarding characteristics based on size, time, and pattern
– Allow incoming raw, Telnet, and SSL/TLS (secure-socket) connections
– Support RFC 2217 (an extension of the Telnet protocol not supported in Digi
Connect WAN)
 Serial data communication over UDP, also known as udpserial (not supported
in Digi Connect WAN) can automatically perform the following functions:
– Digi Connect devices can automatically send serial data to one or more devices
or systems on the network using UDP sockets. Options for sending data include
whether specific data is on the serial line, a specific time period has elapsed, or
after the specified number of bytes has been received on the serial port.
– Control forwarding characteristics based on size, time, and patterns.
– Support incoming datagrams from multiple destinations.
– Support outgoing datagrams sent to multiple destinations.
 TCP/UDP forwarding characteristics.
 Extended communication control on TCP/UDP data paths.