Shutdown
Eaton Network Card-MS User’s Guide P-164000100—Rev 1
www.eaton.com/powerquality
79
Shutdown Management With Two Network Card-MS Cards
Some UPSs can have two Network Card-MS cards to:
l
Increase the number of protected servers
l
Protect two groups of servers connected to separate networks
Shutdown Duration
The protection application transmits its own shutdown duration to the Network Card-MS (as described in
Table 27). Based on these values (maximum shutdown duration of all subscribed customer systems), the card
sends the delayed shutdown order to the UPS. If the UPS has two Network Card-MS cards, the maximum
shutdown duration of the two groups of protected systems is used for the delayed shutdown order.
For example, if the subscribed customers of the first Network Card-MS have a maximum shutdown duration
of 60 seconds and the customers of the second Network Card-MS have a maximum shutdown duration of
120 seconds, the server’s shutdown will be launched 120 seconds before the UPS powers down.
Settings
Eaton recommends setting the shutdown parameters to the same values on both cards (for the main output
and the load segments).
If the settings are not the same, when the first criterion is reached on one card, both cards will launch the
secure shutdown of all servers.
NOTE
Whether the shutdown parameter values on both cards are the same or different,
the shutdown of the protected servers will be executed safely.
