Specifications
Keri Systems, Inc. Doors
TM
Users Guide
01914-001 Rev. 5.5 Section 1: Installation of Doors 1-9
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 appears.
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 appears (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 <type of error>
Press any key to continue
7. To rerun 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 COMTEST window and a pull-down
menu appears. In the menu, click on Close.
9. Remove the loop-back plug from the serial port and reinstall the communication cable.
7.3.1 If the Host Computer Fails COMTEST
If the host computer fails COMTEST, there is a basic problem in transferring data through the COM
port. Troubleshooting by a computer technician is required to resolve the problem.
7.3.2 If the Host Computer Passes COMTEST, but there are Still Problems
The COM Test will pass if it tests a port with an installed modem. To verify the correct port is being
tested, unplug the loop-back plug and rerun the test. If the correct port is being tested, the port should
fail (since the loop-back plug is not installed). If the COM Test passes, either an incorrect port is being
selected, or there is an internal problem that the COM Test does not recognize.
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. Troubleshooting by a computer technician is required to
resolve the problem.