Sena HelloDevice Pro PS110 Series User Manual page 46

Universal device servers
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is " Inactivity timeout" (See Options in section 4.4 for details on Inactivity timeout). All the data
remained in the serial port buffer will be cleared when it is disconnected.
Connection request from remote host
All the incoming TCP connection requests will be rejected in TCP client mode.
3) Parameters
TCP listening port
This is the TCP port number through which a remote host can connect a TCP session, and, send
and receive data. Incoming connection request(s) to the ports other than TCP Listening Port will
be rejected. The Pro Series does restrict the port number from 1024 to 65535 and if it is set as 0
only outgoing connection is permitted. (TCP server mode)
User authentication
If the User authentication option is enabled, the user can access the port after entering the correct
user ID and password. Please refer to the section 5.9 User administration for details of user
management.
Telnet protocol
In TCP mode, Pro Series supports Telnet Com Port Control Option (RFC2217 compliant) so that
user can control serial parameters like baud rate, data bits and flow control option using his local
RFC2217-compliant Telnet client program. (Please refer to section 4.2.6 Serial port parameters
for more detail information about serial parameters)
Usually this option is used with the RFC2217-compliant COM port redirector so that user can
control parameters of serial ports of Pro Series using his serial port application program.
For this purpose, SENA OEM version of Serial/IP from Tactical Software, LLC is bundled with Pro
Series. Please refer to documentations of Serial/IP for more detail information about using the
COM port redirector. (Please refer to section Appendix 5 Using Pro Series with Serial/IP for more
detail information)
Max. allowed connection
The Pro Series supports up to 8 multiple connections from external host(s) to the serial port. If
there are remote host connections by the remote host list configuration already, possible number
of connection will be reduced (Max. allowed connection - remote host(s) connected already). For
example, if user set Max. allowed connection as 8 and if there are 3 connections from Pro Series
to remote hosts, which are configured in the remote host list, then maximum number of
connection from external hosts to a serial port will be reduced to 5. For more detailed information
for remote host list configuration, please refer to 4.2.4 Remote host configuration section.
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