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If the host computer fails comtest – Keri Systems Doors16 User Manual

Page 14

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Doors™ Users Guide

Keri Systems, Inc.

October 1998

01821-001

Page 14

Revision 2.1

5.

The COM port test takes just a few seconds. When complete, if the COM port has passed
the test it is able to send and receive data. The following screen will appear.

KERI SYSTEMS INC. COMM TEST UTILITY

Plug in the Keri Loopback Test plug before starting the test.

Type C to set COM port

Type T to test COM port

Use icon in upper left to quit the program

PORT: COM2

STATUS: Passed

6.

If the COM port has failed the test, the following screen will appear (the error message
will vary depending upon what type of error was detected).

KERI SYSTEMS INC. COMM TEST UTILITY

Plug in the Keri Loopback Test plug before starting the test.

Type C to set COM port

Type T to test COM port

Use icon in upper left to quit the program

PORT: COM2

STATUS: Failed

An error has occurred

Press any key to continue

7.

To rerun the COMTEST, press any key to return to the beginning of the program.

8.

To exit the program, either click on the

box in the upper-right corner of the

COMTEST window, or click on the Windows icon in the upper-left corner of the
program window and a pull-down menu will appear. In the menu, click on Close.

9.

Remove the loop-back plug from the serial port and reinstall the communication cable.

If the Host Computer Fails COMTEST

If the host computer failed COMTEST, there is a basic problem in transferring data through
the COM port. A computer technician should examine the computer.

If the Host Computer Passes COMTEST, but there are Still Problems

Some COM port problems are beyond the scope of this COM test program. These types of
problems tend to involve several devices within the computer that are trying to use the same
resources within the computer, each device affecting the others. A computer technician should
examine the computer to resolve these kinds of problems.