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D279A Operation & Installation Guide
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Page 12
Copyright © 2000 Radionics
D279A
4.13
Buzzer
During entry delay, the buzzer sounds steadily until an alarm occurs or the D279A is disarmed. If you press a
numbered key while the D279A is disarmed and a loop is faulted, the buzzer indicates that the D279A is not ready
to arm. The D279A can only be armed if both loops are normal.
4.14
Lighted Keys
The D279A keys light during the entry delay period, and when you press number keys, or the command bar.
Operation