Notifier AFP-300 Installation Manual page 77

Wiring a Signaling Line Circuit (SLC)
AFP-300/AFP-400 Installation PN 50253:C1 05/22/97
www.PDF-Zoo.com
6/&3HUIRUPDQFH
SLC performance depends on the type of circuit: Style 4, Style 6, or Style 7. Table 2-17
lists the trouble conditions that result when a fault exists on an SLC.
Fault in Loop Style 4
Open Trouble
Ground Alarm/Trouble
Short Trouble
Short and open Trouble
Short and ground Trouble
Open and ground Trouble
Communications loss Trouble
• Trouble indicates a trouble signal will be generated at the control panel during the
abnormal condition.
• Alarm/Trouble indicates an alarm signal can be transmitted to the control panel during
the abnormal condition.
• SLC operation meeting Style 7 requirements isolates entire physical zones on the SLC
from faults that occur within other areas of the SLC.
Style 6
Alarm/Trouble
Alarm /Trouble
Trouble
Trouble
Trouble
Alarm /Trouble
Trouble
Table 2-17 SLC Performance
 ,QVWDOODWLRQ
Style 7
Alarm/Trouble
Alarm/Trouble
Alarm/Trouble
Trouble
Alarm/Trouble
Alarm/Trouble
Trouble
2-41