Microsoft KB Archive/154986

= How To Configure PowerChute for WinNT to Communicate with UPS =

Article ID: 154986

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 3.51

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This article was previously published under Q154986



SUMMARY
After installing PowerChute Plus version 4.2.x or PowerChute for Windows NT, PowerChute may be unable to communicate with the uninterruptable power supply (UPS). This article documents procedures for troubleshooting PowerChute installation.



MORE INFORMATION
To troubleshoot communications problems between PowerChute and the UPS, do the following:  Ensure that the UPS service has been started. You can check this in Control Panel Services. Ensure that the PowerChute cable is properly and fully connected to both the UPS interface port and the appropriate Windows NT serial port. The baud rate on the Windows NT serial port must be set to 2400. You can check this in Control Panel Ports. Perform a terminal emulation test by doing the following:  Stop the UPS service. To do this, open Control Panel Services, select UPS, and click Stop. Double-click the Terminal icon in the Accessories group.  On the Settings menu, click Communications. The desired serial port should be set to the following: <pre class="fixed_text">        Baud rate     2400 Stop bits    1 Parity       none Flow control Xon/Xoff

</li> Click OK.</li> At the flashing cursor prompt, type an uppercase Y. The computer should return the uppercase letters SM.</li> If nothing is returned to the screen when you complete step e, move the interface cable to another available serial port on the Windows NT system and perform step e again.</li> If still nothing is returned when you complete step f, test the questionable COM port with another communications device such as a modem, or perform a loopback test with an appropriate software package. If an SM is returned, go to step h.</li> Quit Terminal, but do not save any settings.</li> Restart the UPS service.</li></ol> </li></ol>

Additional query words: prodnt tshoot repair uninterruptible

Keywords: kb3rdparty KB154986

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