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- DOCUMENT:Q103027 04-NOV-1993 [W_NT]
- TITLE :Remote UPS Shutdown Signal Buttons Always Available
- PRODUCT :Windows NT
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:
-
- ------------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT Advanced Server, version 3.1
- - Microsoft Windows NT operating system, version 3.1
- --------------------------------------------------------------------
-
- The uninterruptible power supply (UPS) service in Windows NT has an
- unexpected behavior in the user interface. If the Remote UPS Shutdown
- check box is not selected, the signal level option buttons are still
- available. This article describes how and why this unusual behavior is
- required.
-
- MORE INFORMATION
- ================
-
- The UPS service is started from the Control Panel. It is used to
- configure desired options and operation of the UPS hardware. You can
- enable the service by selecting the "Uninterruptible Power Supply is
- installed on:" check box.
-
- The Remote UPS Shutdown configuration option allows the Windows NT
- system to tell the UPS to turn off. This is done when Windows NT is
- gracefully shutting down.
-
- If the Remote UPS Shutdown check box is selected, this indicates that
- the UPS device supports this functionality; the appropriate signal
- level must then be selected to indicate how it works.
-
- If the Remote UPS Shutdown check box is clear (not selected), the
- signal level option buttons are still available. The expected behavior
- is that if the option is disabled, the option buttons would be
- unavailable; but this is not the case. If the Remote UPS Shutdown
- check box is clear and the signal level option buttons are available,
- there are two possibilities:
-
- - The UPS device does not support this functionality. Therefore, it
- doesn't matter what the signal level option buttons are set to.
-
- -or-
-
- - The UPS device does support this functionality, but you do not want to
- use it.
-
- In this case, you still need set the signal level option button that
- the UPS expects so that the UPS does not work incorrectly. Even if you
- do not want to use this feature, the UPS is still going to interpret
- the signals on this line. If it receives a certain signal, it will
- shut itself down.
-
- Previously, if you did not want to use this feature on your UPS, the
- default value assumed for the signal would (for 50 percent of UPS's)
- result in the UPS device shutting itself off as soon as the power
- failed, which is not desirable.
-
- Additional reference words: 3.10 active not gray grey
- KBCategory:
- KBSubCategory: ntap
-
- =============================================================================
-
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- PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
- ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
- OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO
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- OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
- SO THE FOREGOING LIMITATION MAY NOT APPLY.
-
- Copyright Microsoft Corporation 1993.