Realport Software; Alarms; Modem Emulation - Digi Connect SP User Manual

The Advanced Digi Discovery Protocol (ADDP) runs on any operating system capable of sending multicast IP packets
on a network. ADDP allows the system to identify all ADDP-enabled Digi devices attached to a network by sending out
a multicast packet. The Digi devices respond to the multicast packet and identify themselves to the client sending the
multicast.
ADDP communicates with the TCP/IP stack using UDP. The TCP/IP stack should be able to receive multicast packets
and transmit datagrams on a network.
Not all Digi devices support ADDP. You can enable or disable access to ADDP service, but you cannot change the
network port number for ADDP from its default.

RealPort software

Digi devices use the patented RealPort COM/TTY port redirection for Microsoft Windows, UNIX, and Linux
environments. RealPort software provides a virtual connection to serial devices, no matter where they reside on the
network. The software is installed directly on the host computer and allows applications to talk to devices across a
network as though the devices were directly attached to the host. Actually, the devices are connected to a Digi device
somewhere on the network. RealPort is unique among COM port re-directors because it is the only implementation
that allows multiple connections to multiple ports over a single TCP/IP connection. Other implementations require a
separate TCP/IP connection for each serial port. Unique features also include full hardware and software flow
control, as well as tunable latency and throughput. You can enable or disable access to RealPort services.
Encrypted RealPort
Digi devices also support RealPort software with encryption. Encrypted RealPort offers a secure Ethernet connection
between the COM or TTY port and a device server or terminal server. Encryption prevents internal and external
snooping of data across the network by encapsulating the TCP/IP packets in a Secure Sockets Layer (SSL) connection
and encrypting the data using Advanced Encryption Standard (AES), one of the most efficient security algorithms.
You can enable or disable access to Encrypted RealPort services. Digi's RealPort with encryption driver has earned
Microsoft's Windows Hardware Quality Lab (WHQL) certification. Drivers are available for a wide range of operating
systems, including Microsoft Windows and Linux x32 and x64 based operating systems, as well as other versions of
Unix. See the RealPort Compatibility OS List in the Digi Knowledge Base for a detailed list of supported operating
systems. It is ideal for financial, retail/point-of-sale, government or any application requiring enhanced security to
protect sensitive information.

Alarms

You can configure Digi devices to issue alarms, in the form of email messages or SNMP traps, when certain device
events occur, including changes in GPIO signals, data patterns detected in the data stream. Configuring Digi devices
to issue alarms allows you to know when events occur. You can also forward Alarms to Device Cloud for display and
management in that platform. For more information on configuring alarms, see Alarms on page 53.

Modem emulation

Digi devices include a configuration profile that allows the device to emulate a modem. Modem emulation sends and
receives modem responses to a serial device over TCP/IP (including Ethernet) instead of Public Switched Telephone
Network (PSTN). The modem emulation profile allows you to maintain a current software application but using it
over the less expensive Ethernet network. In addition, you can enable or disable telnet processing on the incoming
and outgoing modem-emulation connections. For information on the modem-emulation commands that Digi
devices support, see the Digi Connect Family Command Reference.
Digi Connect Family and ConnectPort TS Family User Guide 13