Rackmount Solutions XRT Series - Manual (Page 38)

37
REMOTE COMMUNICATIONS
Remote communications and control may be implemented via the DB-9
communications port. This interface is compatible with the Minuteman
Sentry or PowerMon software. The connector interface is shown below;
Pin Function
1 Unused
2 Transmitted Serial Data from UPS
3 Received Serial Data to UPS
4 AC Fail from UPS (simulated Normally
Open relay contact)
5 Ground
6 Low Battery Warning from UPS
(simulated Normally Open relay contact)
7 AC Fail from UPS (simulated Normally
closed relay contact)
8 AC fail from UPS (High = AC Fail)
9 Remote Shutdown Output to UPS
.