Quatech ES-100 user manual Troubleshooting, Computer will not boot up

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8. TROUBLESHOOTING

Listed here are some common problems and frequent causes of those problems. Suggestions for corrective action are given. If the information here does not provide a solution, contact Quatech Customer Service for technical support.

Any unauthorized repairs or modifications will void the ES-100D's warranty.

Computer will not boot up.

1.Is the ES-100D properly inserted? Remove the card and try again. Perhaps try a different expansion slot.

2.Is the base address correctly set? Check for address conflicts with other devices in the system. Remember that the ES-100D requires 64 bytes of I/O space. Set a different address if necessary.

3.The ES-100D may be defective. Contact Quatech Customer Service for instructions.

Cannot communicate with other equipment.

1.Are the cable connections correct? Are the cables securely attached?

2.Are the base address and interrupt level (IRQ) correctly set? Check for address and IRQ conflicts with other devices in the system. Change the settings if necessary.

3.If you are trying to communicate with a DTE, a null-modem cable may be required.

4.If possible, use a loopback connector to test the port. This connector needs to connect the following sets of signals on a D-25 connector:

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)

Quatech ES-100D User's Manual

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Contents ES-100 Page Warranty Information Page EC Council Directive 89/336/EEC FCC Class BGeneral Information Installation Port Address IRQDiagram of ES-100D Setting the address Addressing PortsExamination of a serial port base address Interrupt Level IRQ Interrupt SharingInterrupt Status register Interrupt Status Register contents This page intentionally left blank External Connections Channel Output Configuration ES-100D connector definitionsES-100D output connectors Serial Port Functional Description Accessing the Serial Port registers DlabInterrupt Enable Register Interrupt Identification RegisterInterrupt Identification Register bit definitions Fifo Control Register 16550 only RXT0Line Control Register EPS PEN ParityModem Control Register Modem Control Register bit definitionsLine Status Register Line Status Register bit definitionsModem Status Register Scratchpad RegisterFifo Interrupt Mode Operation 16550 Uart only When the receiver Fifo and receiver interrupts are enabledFifo polled mode operation 16550 Uart only Baud Rate Selection Value Values %Specifications 16450 16550 optionalTroubleshooting Computer will not boot upVersion March Quatech Inc, ES-100 Manual
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