This key is used to select the option presented on the right side of the bottom line display.

Possible values are:

• SELECT to select the option displayed on the top line
• ENTER to enter the data displayed on the top line
• NEXT to view the next alert after the one displayed on the top line
• CLEAR to clear the alert displayed on the top line
• SAVE to save a setting

The OK button acts as a SELECT key for the menu option displayed on the top line and also as an ENTER/SAVE key for data displayed on the top line.

In Programming mode, the right arrow key advances the user through the menus in the same way as pressing the SELECT option (right soft key).

In data entry mode, press this key to move the cursor one position to the right.

In Programming mode, the down arrow key moves the user to the next programming option in the same menu level. Continually press this key to scroll through all programming options available on the current menu level.

In alphanumeric mode, press this key over an upper case character to change the character to lower case.

When alerts are displayed, the down arrow key moves the user to the next alert message in the order of priority. (See Prioritization of display messages.)

In Programming mode, the left arrow key returns the user to the previous menu level. Pressing this key when in the top menu level exits the user from programming.

In data entry mode, press this key to move the cursor one position to the left.

In Programming mode, the up arrow key moves the user to a previous programming option in the same menu level. Continually press this key to scroll through all programming options available on the current menu level.

In Alphanumeric mode, press this key over a lower case character to change the character to upper case.

This key is used to select the option presented on the left side of the bottom line display.

Possible values are:

• EXIT to exit programming
• BACK to return to previous menu

In the IDLE state, this line is blank.

In Programming mode, this line displays options available to the user. These options align over the left and right soft keys for selection as required.

In the IDLE state, displays the current date and time. In Programming mode, this line displays one of the following:

• The programming feature to be selected
• The current setting of the selected feature
• The nature of the current alert during an alert condition. (See Prioritization of display messages.)