NAC and Panel Circuit Coding
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AFC-600 Operations PN 51033:A 3/8/99 77
Table 38 contains descriptions of the signals that correspond to each NAC Code Type.
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You can use the Read Status Entry option to view the current selection for the Coding
function. To do so, press the following keys in sequence:
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The LCD display shows the current selections for the Code Type. Figure 79 shows a
sample LCD display of a Code Type selection of March Time:
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If an alarm occurs with a Coding selection, the control panel latches the control panel in
alarm and pulses outputs mapped to F8 at the pulse specified by the Coding selection
(see Table 38 on page 77). To silence the outputs, press the
ALARM
SILENCE
key.
Coding
Selection
Signal Notes
March Time
(default)
120 PPM (pulses Per
minute)
Default selection for NACs and Panel
Circuits mapped to F8.
Two-Stage Alert signal (20 PPM) or
General Alarm signal
(steady pulse)
• Alert signal – When an alarm occurs
and not activated by another zone, the
output pulses at 20 PPM.
• General Alarm signal – If not
acknowledged within 5 minutes, the
control panel aborts the Coding
selection and pulses steady.
• ICM-4/ICE-4 modules do not support
Two-Stage and pulse steady.
California 10 sec. On, 5 sec. Off,
repeats
ICM-4 modules – to enable California
code, cut D35 on ICM-4 modules. If D35
is not cut, California code does not pulse
and ICM-4/ICE-4 modules pulse steady.
Temporal 0.5 on, 0.5 off, 0.5 on, 0.5
off, 0.5 on, 1.5 off, repeats
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