3onedata NP318T-8DI User Manual page 106

Network cable or fiber optic cable is not connected or poor contact, network
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cable damage.
Network port damage, network cable line error and did not do according to
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the standard line.
Optical port damage, fiber type, fiber wavelength, transmission distance,
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transmission medium and data format does not match.
The serial port server Link indicator is damaged.
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Problem Solving:
Confirm the communication environment, whether the device is powered on,
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check the network cable contact problem.
Use the Ping command to the IP address of the serial server. If the Ping
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succeeds, the serial port link is corrupted. If the Ping fails, proceed to the
following steps.
For electrical, replace the network cable, computer or serial port to test the
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electrical port.
For optical ports, check whether the fiber type, fiber wavelength,
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transmission distance, transmission medium, and data format match. If it
matches, replace the fiber or optical port for testing.
6. Why is the serial server power supply not powered?
Check whether the power supply is damaged or whether the positive and
negative terminals are connected; whether the power indicator light is on and the
power supply is stable.
7. VSP Manager can be used to search for the device, and the establishment
of a virtual serial port, but look at the virtual serial port, unable to Link?
Problem Detection: Probably not open session.
Problem Solving:
Confirm the communication environment, if you can search the device, Link
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indicator light is also bright, that PC to the serial server can communicate.
Check whether the PC and the serial server can Ping successfully. If the
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Ping fails, change the PC and serial server to the same network segment.
Enter the configuration interface of the serial server to check whether the
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working mode is configured correctly; whether the IP address and port
number of the remote virtual serial device and the serial server are
consistent.
8. Test the serial server with test software found garbled?
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