User's Manual

106 | Managing the Radio
Aprisa SR User Manual
Protocol
This parameter sets the IP protocol used for terminal server operation. The default setting is TCP.
Mode
This parameter defines the mode of operation of the terminal server connection. The default setting is
Client and Server.
Option
Function
Client
The radio will attempt to establish a TCP connection with the
specified remote unit.
Server
The radio will listen for a TCP connection on the specified local
port.
Data received from any client shall be forwarded to the associated
serial port while data received from that serial port shall be
forwarded to every client with an open TCP connection.
If no existing TCP connections exist, all data received from the
associated serial port shall be discarded.
Client and Server
The radio will listen for a TCP connection on the specified local
port and if necessary, establish a TCP connection with the
specified remote unit.
Data received from any client shall be forwarded to the associated
serial port while data received from that serial port shall be
forwarded to every client with an open TCP connection.
Inactivity Timeout (seconds)
This specifies the duration (in seconds) to automatically terminate the connection with the remote TCP
server if no data has been received from either the remote TCP server or its associated serial port for the
duration of the configured inactivity time.
TCP Keep Alive
A TCP keepalive is a message sent by one device to another to check that the link between the two is
operating, or to prevent the link from being broken.
If the TCP Keep Alive is enabled, the radio will be notified if the TCP connection fails.
If the TCP Keep Alive is disabled, the radio relies on the Inactivity Timeout to detect a TCP connection
failure. The default setting is disabled.
Note: An active TCP Keep Alive will generate a small amount of extra network traffic.