Chapter 3: Configuration and commissioning
2X-A Series Installation Manual 123
Investigation time
Select Investigation time to configure the duration (in seconds) of the
investigation time for the configured investigation mode. Minimum, maximum,
and default values for each mode are shown in the table below.
Table 65: Investigation time values per mode
Minimum Maximum Default
Manual acknowledgement time
30 seconds See note [1] 60 seconds
Extended fire routing delay
See note [2] 600 seconds 60 seconds
[1] The maximum value must be less than the minimum delay to activate a sounder or fire
routing group.
minimum value must be greater than the maximum activation delay for any fire routing
Note: The table above indicates the minimum and maximum values when
Inv_Ack is not enabled (any configured investigation time starts when the alarm
is detected). If Inv_Ack is enabled, the maximum investigation time is 600
seconds less the configured investigation time, and the minimum is 0.
Warning time
Select Warning time to configure a warning time for applications with warning
tone requirements (second stage sounders).
Note: If a warning delay is required, this must be configured separately (see
“Sounder, fire routing, fire protection, and program output group delays” on page
117).
With this option, sounders emit the warning tone for a configured period of time
(the warning time). When the warning time ends, the sounder tone changes to
the evacuation tone (the warning tone continues to sound for the duration of any
configured delay that precedes the evacuation tone). See Figure 26 and
Figure 27 on page 124, below, for examples of delays with and without second
stage requirements.
Note: The sounder tones are configured in the corresponding device
configuration screen.
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