When monitoring the UPS using dry contacts, according to the user doc the built-in DB-9 pin 9 indicates whether the UPS is On Battery.
Is that asserted only when utility power is lost or also when the UPS goes on Boost?
I ask because the description for the Relay-MS card indicates it can notify when utility power is lost.
(Unable to use one of those, because the card slot is already in use for monitoring/control via SNMP).
TIA.