Potter PFC-5000 Series - Manual (Page 31)

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NAC (Signal) Circuits Types
Circuit Type Description
Silenceable Signal For audible devices such as bells and piezo mini-horns that may be silenced either manually or
automatically. While sounding, these follow the pattern appropriate for the condition: the confi gured
evacuation code (default is temporal code) during single-stage alarm, or two stage general alarm, or
the alert code during a two stage system’s alert (fi rst) stage.
Non-Silenceable Signal For audible devices such as bells and piezo mini-horns that may not be silenced either manually or
automatically. While sounding, these follow the pattern appropriate for the condition: the confi gured
evacuation code (default is temporal code) during single-stage alarm, or two-stage general alarm, or
the alert code during a two stage system’s alert (fi rst) stage.
Silenceable Visual For visual devices such as strobes that use no code pattern (they are continuous).
Non-Silenceable Visual Same as previous, but is non-silenceable.
Evacuation Codes
Single stage codes
Continuous On 100% of the time
Temporal Code 3 of 0.5 second on, 0.5 second off then, 1.5 second pause
March Code 0.5 second on, 0.5 second off
California Code 5 seconds on, 10 seconds off
Figure 18: Evacuation Codes
0.5s
0.5s
1.5s
0.5s
0.5s
5s 10s
CONTINOUS
TEMPORAL CODE
MARCH CODE
CALIFORNIA CODE
0.5s
2.5s
ALERT CODE