62
SD Series Technical Manual
MDS 05-4846A01, Rev. H
NOTE:
Available selections vary depending on the mode selected.
•
Status
—Enables or disables the Terminal Server feature.
•
Mode
—Sets the operating mode for the IP port. It may be set to
UDP Socket
,
TCP Client Socket
,
TCP Server Socket
, or
TCP Server/Client
Socket
to match the service in which it will operate.
•
Local Radio IP Port
—Used to specify a port number for the RJ-45
modular connector on the radio’s front panel. As a general rule,
port numbers below 2000 should be avoided, as some are
reserved for special applications in data networks.
•
Destination IP Address
—Specifies the IP address associated with the
device connected through the RJ-45 modular connector on the
radio’s front panel (typically a PC). Any valid IP address may be
entered here.
•
Destination IP Port
—Used to specify a port number for the RJ-45
modular connector on the connected device (typically a PC). Port
numbers below 2000 should be avoided, as some are reserved for
special applications in data networks.
•
TCP Server IP Address
—IP address of the TCP server being used.
•
TCP Server IP Port
—Port number of the TCP server being used. Port
numbers below 2000 should be avoided, as some are reserved for
special applications in data networks.
•
Socket State
—Provides status on the configuration (
i.e.
, whether or
not the terminal server port is active).
•
Modbus TCP<->RTU Conversion
— Used to convert Modbus TCP
messages to Modbus RTU, and conversely, Modbus RTU to
Modbus TCP. This feature eliminates the need for external equip-
ment to handle the conversion.
The Terminal Server supports the following communication protocols:
• Point-to-Point: TCP or UDP
• Point-to-Multipoint
1
: UDP (One of the Destination IP Addresses
is a multicast IP address)
• Multipoint-to-Multipoint
1
: UDP (Two or more of the Destination
IP Addresses are a multicast IP address)
1
Data from local multicast IP addresses is always delivered to the socket layer
by the radio's TCP/IP stack. Therefore, to receive data from local multicast IP
addresses, simply set the Local Radio IP Port equal to the destination IP port
of the multicast IP packet.
