Edwards Signaling FSC Series - Manual (Page 112)

Appendix C: Wiring diagrams
104 FSC Series Technical Reference Manual
Figure 16: Typical alarm circuit
Figure 17: Typical 4-wire smoke detector circuit
Figure 18: Typical waterflow alarm circuit
Figure 19: Typical supervisory circuit
Note: Supervisory circuits are also known as tamper circuits
4.7 k EOLR
(Class B only)
Ω
+
–
IDC 1+
IDC 2+
IDC 2–
IDC 1–
Smoke
detector
Dry contact
device
Class A only
IDC 1+
IDC 1–
IDC 2+
IDC 2–
+
–
RST+
4.7 k EOLR
(Class B only) Ω
UL/ULC listed
24 VDC EOL Relay
(shown energized)
   
Class A only
4.7 k EOLR
(Class B only)
Ω
IDC 1+
IDC 2+
IDC 2–
IDC 1–
Waterflow
switch
Class A only
Waterflow
switch
4.7 k EOLR
(Class B only)
Ω
IDC 1+
IDC 2+
IDC 2–
IDC 1–
Supervisory
device
Supervisory
device
Class A only