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Upgrade Key (Optional)
The upgrade key is a small hardware device with some unique properties. When
it is installed in the SVMi-4 Card it increases the number of available ports from
2 to 4, and the number of mailboxes from 16 to 32. The SVMi-4 card can not
be expanded beyond 4 ports and 32 mailboxes. This upgrade key is necessary to
use the SVMi-4 in the DCS 50si.
The 2 port upgrade key for the SVMi-4 card is available only from SAMSUNG.
General Description - Page 10
Memory
Upgrade Key