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Xtralis VESDA
®
VESDAnet Interface Card Product Guide
In large networks of over 50 devices, the user may also need to change:
Preferred port
The VESDAnet transmission directions should be randomized. Either
randomize the wiring or randomize the preferred port setting. The factory
default preferred port on the VESDAnet Interface Card is Port A.
Minimum Interval between status events
The minimum interval between detector status messages being sent should
be set to 20 seconds. To set the minimum interval higher than 10 seconds,
VESDA System Configurator (VSC) software is required.
VLF features disabled by VESDAnet Interface Card
There are some features of the VLF detector that will not be available when
the VLF-VN is connected to VESDAnet, as VESDAnet does not support
those features. These are:
• Alert, Action, Fire 1 & Fire 2 verification delays for alarm set 2. These
delays are always set equal to the alarm set 1 delays
• The GPI (General Purpose Input) cannot be configured to alarm set 1,
or none
• Daylight saving functions are not available
• ‘Fixed’ selection of Day or Night smoke thresholds (time of day selection
is always used)
• PINs setup using a direct serial connection to the VLF is disabled
• The Major Flow Averaging Period is fixed at 60s (the same as VESDA
VLP detector products).
Configuring VLF and VESDAnet Interface Card
VESDA System Configurator (VSC) is recommended for configuring all
VESDA devices.
The VLF detector is identified as a VLF by VSC. It is displayed as a VLP (1
pipe) on original tools such as the LCD Programmer.
The VLF detector can either be configured using VSC via the direct serial
connection or via VESDAnet using VSC or with the LCD Programmer. VSC
Online help is available for more detailed information.
The following sections detail the difference between the configuration tools.
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