E4990A Help
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5. The Instrument manager displays the connection with E4990A.
Control with Telnet Server
In the control system over telnet server, communications are performed
through connection between the sockets provided by the processes of the
external controller and the E4990A to establish a network path between
them.
A socket is an endpoint for network connection; port 5024 and port 5025
are provided for the sockets for the E4990A. Port 5024 is provided for
conversational control using telnet (user interface program for the TELNET
protocol) and port 5025 for control from a program.
To use telnet, port 5024 and 5025 should be opened
through Windows firewall.
Preparing the E4990A
To communicate with the external controller, follow these steps to turn on
the telnet server of the E4990A in advance.
System > Misc Setup > Network Setup > Telnet Server [ON]
When the telnet server is turned ON for the first time, the
windows firewall setting dialog box appears. Select Unblock and click
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