T&D TR-5xU Series, Руководство пользователя

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63 Other
- If a port appears, it should be usable.
- If a mark [
！
] or [
×
] appears next to the port, this communication port is unusable. If you
cannot use a communication port please contact your computer company.
- To find out more details about an unusable communication port:
Select the port with a [
！
] mark, and then click on [Properties] to view the details about that
port.
Ａ
: If your computer has an internal modem, make sure that the
communication port is not being used by it. When the communication
port is being used as the modem port, that port cannot be used.
Either quit using the modem or use another port.
An example of the modem using a
communication port (COM
1 ).
Ａ
: If your computer has no serial port, use a Serial-USB conversion
cable and carry out communication via USB connection. We
recommend [I.O DATA USB-RSAQ
3 ] , [ELECOM UC-SGT] and
[IOGEAR UC- 232 A] Serial-USB conversion cables. If you are using
an NEC Lavie J Notebook Computer (NEC LJ- 500 ), please use [I.O
DATA USB-RSAQ 3 ].
Ａ
: Sometimes communication will not work if a switch has been added
to the serial port (RS- 232 C) or an extension cable has been added
to the communication cable.
Ａ
: Check to see if some other communication software is in use.
Ａ
: If your desktop computer has two serial ports, try connecting the
communication cable to the other port and try communicating again.