Verilink PRISM 41TDM (34-00275.4) Product Manual - Manual (Page 51)

Configuration 43
Alarm Reset Timer
Determines the seconds after alarm conditions clear before indications are
removed. The choices are 10, 30, 60, 90, 100, 200, 300, 400, 500, 600, 700, 800,
900, and None (--). If this value is set to None, the alarm conditions do not
automatically reset.
DBU Configuration This unit offers a method of providing an alternate data path when the DDS
network connection fails. This alternate data path is established across an ISDN
line. The DBU Configuration screen (Figure 4-10) allows establishing the DBU
protocols.
Figure 4-10 DBU Configuration Screen
DBU Status
Shows the current state in the left brackets and the programming choices in the
right brackets. The possible status values are DISABLED, ENABLED,
DISALLOWED, DIALING, CONNECTING, ANSWERING, and ACTIVE. The
available DBU commands are as follows:
DISABLE - DBU is disabled.
ENABLE - The DBU activates when the DDS line fails.
ENABLE DAILY - The DBU only activates if the time is set in the DBU
Activation Periods.
ACTIVATE - Manually activates the DBU function.
NOREVERT - Allows the unit to respond to a dial backup situation only during
the specified time period for that day. Selecting this option causes the Daily
Periods configuration field to appear. The unit remains in Dial Backup mode until
the end of the period, even if the line conditions improve.
FDL alarm triggered DBU is always treated as NON-REVERTIVE.
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