Omron NSA Manual page 43

2. Remove the side cover.
Setting the DIP Switch
Set the DIP switch only to enable the RAS Board's special Action on Error
monitoring function or to set the ACFAIL signal input method for the external input
port (UPS power interrupt signal connector) to "Normally supplies 24 V; Open at
PWR-FAIL."
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Setting the DIP Switch
RAS Function Settings (Hardware Settings)
Pin
No.
1 Not used (Default setting: OFF)
2 Not used (Default setting: OFF)
3 Not used (Default setting: OFF)
4 Not used (Default setting: OFF)
Specifies the method for using the external input port (UPS power
interrupt signal connector).
5
ON: Used for UPS connection.
OFF: Use as general input port (default setting).
Specifies the ACFAIL signal input method for the external input port (UPS
power interrupt signal connector). (See note.)
6 ON: Normally supplies 24 V; Open at PWR-FAIL.
OFF: Normally open; supplies 24 V at PWR-FAIL. (Recommended/default
setting.)
7 Always OFF
8 Enables and disables the Action on Error operation of the special RAS
Board monitoring functions (alive, startup, and shutdown monitoring).
ON: Disables operation when there is an error.
OFF: Enables operation when there is an error (default setting).
Note: Select the appropriate input method for the system you are using.
3-2 Installing a PCI Board and Setting the DIP Switch
Function
3
3-5