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:: USVSENSE ::
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(only sysop, only DOS)
Syntax: USV(SENSE) [ 0 | 1 ]
(default: 0)
If the BBS computer is connected to a USV, the BBS can be switched off
via pin 15 of LPT1 port through alarm line of USV:
pin 15 high (TTL, 5 V) -> BBS is running
pin 15 low (TTL, 0 V) -> BBS is shutdown
If USVSENSE is set to 1 the function is activated, if set to 0
the USV function is disabled.
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