User Manual

• PPP. The Point-to-Point Protocol (PPP) mode is used for emulating an Ethernet connection over
a serial interface.
• DNP. The Distributed Network Protocol (DNP) mode is used for transferring DNP data between
the NovaRoam’s serial port and other Ethernet devices.
• Repeater. The Repeater mode is used for NovaRoams that operate as fixed repeaters within the
network.
• Apply: Saves changes made to the configuration of the Serial Mode Tab. Changes will not be
saved if you change to a different configuration tab without first pressing the apply button.
PPP Serial Mode
The following options are available when PPP is the selected serial port mode.
• Local IP Address. IP address (Ethernet Interface) assigned to the NovaRoam’s end of the PPP
link
• Remote IP Address. IP address assigned to the remote device of the PPP link.
DNP Serial Mode
The following options are available when DNP is the selected serial port mode.
• UDP/TCP. Determines which transport control protocol, TCP or UDP, will be used for DNP
communication. UDP is the default setting.
• Enable DNP Dynamic Port. Enabling the DNP Dynamic Port feature causes the NovaRoam to
monitor SCADA traffic in order to determine the source port for each data stream. Port
information is stored internally, allowing the NovaRoam to know which port to send received
packets to on the SCADA master. While many SCADA masters utilize port 20,000 for SCADA
communications, some of them use a different port with each device they communicate.
• IP Address. When creating an entry for the DNP table, this value denotes the IP Address portion
of the DNP table entry.
• SCADA Address. When creating an entry for the DNP table, this value denotes the SCADA
Address portion of the DNP table entry. The valid range of SCADA addresses is 0-65535.
Although some SCADA addresses may be reserved for specific applications or SCADA
operations, the NovaRoam allows any addresses within the valid range to be assigned.
• Add. After entering an IP Address and the corresponding SCADA address, press the Add button
to add the entry to the DNP table.