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6.0 UPS monitoring
6.3 PowerChute
®
Software
PowerChute software provides complete data protection for most operating
systems. This software is a background process that monitors the UPS through
a RS-232 serial port on the host. PowerChute offers user notification of impend-
ing shutdown, power event logging, auto-restart upon power return and UPS
battery conservation features. PowerChute is available for many platforms
including Novell, LAN Manager, AppleShare, XENIX, most UNIX-based operat-
ing systems, and DEC VAX/VMS.
Caution: Use only factory supplied or authorized UPS monitoring cables!
6.4 Computer interface port
The NETWORK PowerCell computer interface port is diagramed below for
reference. Those with technical abilities wishing to use this port in a special
application should be aware of the following limitations and capabilities of the
interface.
6.4.1 Outputs at pins 3, 5 and 6 are
actually open collector outputs
which must be pulled up to a com-
mon referenced supply no greater
than +40 Vdc. The transistors are
capable of a maximum non-induc-
tive load of 25 mAdc. Use only Pin
4 as the common.
6.4.2 The output at Pin 2 will gener-
ate a LO to HI RS-232 level upon
transfer of the output load to power
derived from the UPS’s battery. The
pin is normally at a LO RS-232 level.
6.4.3 The UPS will shut down when
a HI RS-232 level, sustained for 0.5
s, is applied to Pin 1. The UPS
responds to this signal, following a
delay, only during utility failures.