DISPLAYING OFF-NORMALS. cont'd

TM 5-6350-275-10

by pressing [NEXT]. When you do this, the system shows the next set of soft-key options. You choose from these by

responding to the prompt Select and press NEXT. The soft-key options offered by the system depends on the class of

point you have selected for display. The possibilities are as follows.

For status points:

[UNACK]

[ALARM]

[FAULT]

F10

[QUIT]

For all points:

[UNACK]

[ALARM]

Selection from these menus is optional but should be ended by pressing [NEXT]. If you decide not to use any of the

options, the system assumes that it is to ignore the current condition of the points. Therefore all points are selected.

(1) The [UNACK] and [ALARM] soft-keys refine your off-normal display to show points that are either:

In an alarm condition or

In an alarm condition and have unacknowledged alarms set against them

(2) The [ALARM] soft-key selects points which are in an alarm state, and the [UNACK] key selects points which

have unacknowledged alarms set against them. When you press the [UNACK] key, - the system selects the [ALARM]

key since, by choosing points with unacknowledged alarms set against them, you are also selecting points that are in an

alarm state. Both soft-keys can be selected along with any other options shown on the current soft-key menu. Both keys

toggle between the selected and de-selected states each time they are pressed.

(3) The [FAULT] soft-key refines your off-normal display to one which contains only ternary points that are

currently in their fourth state. The fourth state of a point is termed the Fault state. This usually indicates that a false

reading has been returned by an RADC. The [FAULT] key can also be used to display a list of points where the fault

condition has arisen. You can use the [FAULT] key either on its own or with the [UNACK] and [ALARM] keys. Selection

and de-selection of the key is a toggle action, where each keystroke causes the key to switch to the alternative state.

d. Selecting RADCs and Equipment. After selecting the class of point and any additional parameters, you enter

details of the RADCs and equipment by displaying the first of up to eight prompts:

Group(s)

Stn(s)

Prefix

Numeric

Suffix

Zone

Device