Derived Alarms - DPS Telecom NetGuardian LT G2 User Manual

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12.8

Derived Alarms

The NetGuardian LT G2's 16 discrete derived alarms are configured from the Provisioning > Derived
Alarms menu. Descriptions for the alarm points, polarity (normal or reversed) and notification type(s) are
defined from this menu. You also have the option to use a Basic or Advanced configuration methods.
Fig. 12.8.1 The Details button on the Provisioning > Derived Alarms screen
ID
Description
Notification Devices
Derived Description
On Set
On Clear
Qual. Time (Qualification
Time)
Qual. Type (Qualification
Type)
Derived alarms can be created from derived formulas using the following operations:
_OR : Set the current operation to OR.
_AN : Set the current operation to AND.
_XR : Set the current operation to XOR.
D : Tag to change the active display number
. : Used like a comma to delimit numbers.
- : Used to specify a range of points.
Derived Alarms Configuration
ID number for the alarm.
User-definable description for the NetGuardian's alarm.
Check which notification device(s), 1 through 8, you want to send alarm notifications
to.
Details<<
Derived alarms can be created with a derived formula and tested with the Parse
button. See below for more information.
User-definable description (condition) that will appear for the discrete alarm input on
Set. Example: "Alarm".
User-definable description (condition) that will appear for the discrete alarm input on
Clear: "Example: "Alarm Cleared".
The length of time that must pass, without interruption, in order for the condition to be
considered an Alarm or a Clear.
Allows you to choose whether you want to apply the Qualification Time to the alarm
Set, Clear, or Both.
.