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11 Troubleshooting
Listed here are some common problems and frequent causes of those problems. If the information here does not provide a solution, contact Quatech technical support.
Any unauthorized repairs or modifications will void the
Computer will not boot up.
1.Is the
2.Ensure that an
3.The
Cannot communicate with other equipment.
1.Are the cable connections correct? Are the cables securely attached?
2.Is the software configured with the correct base address and IRQ information for the
3.Is the device driver installed?
4.If you are trying to communicate with another DTE, a
5.If possible, use a loopback connector to test the port. This connector needs to connect the following sets of signals on a
TxD and RxD (pins 2 and 3)
RTS and CTS (pins 4 and 5)
DCD, DTR, DSR, and RI (pins 8, 20, 6 and 22)
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