CSW-H80 User Manual Ver. 3.0
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5
Communication Modes
5.1
TCP Server
In this mode CSW-H80 listens to a request of TCP connection from remote hosts. Once a
host tries connecting to CSW-H80, it accepts a connection. After the connection is
established, CSW-H80 converts the raw data from the serial port to TCP/IP data and sends
it to the network and vice versa.
5.1.1 Key parameters
Local Port
This is a server’s port number which is used in the TCP connection.
Event Byte
With setting event bytes, you can handle the serial data of the serial buffer before a
TCP connection is established.
Value
Description
0
CSW-H80 doesn’t send the data
Otherwise
(512 or under)
CSW-H80 sends the data right after a connection is established.
512 or under bytes are strongly recommended.
Table 5-1 Event Byte
Timeout
If there is no transmission of data for specific time the connection would be
terminated.
Notify IP Change
This function is to notify changed IP addresses to a management server. Not only can
the TCP/UDP protocol be used, but Dynamic Domain Name Service (DDNS).
Access restriction
Users can block TCP connections from unauthorized hosts by using this option. Both
IP and MAC address are available.