Installation Wiring a Signaling Line Circuit (SLC)
52 IQ-301 PN 50036:F 10/29/2001
Wiring an NFPA Style B IDC with Standard Monitor Modules
Figure 34 shows typical wiring using FMM-1 modules to wire a Style B IDC.
Maximum IDC resistance is 20 ohms. Refer to Device Compatibility Document for
detector and power supervision relays.
Figure 34 Typical Style B (Class B) IDC Wiring with FMM-1 Modules
TB4
TB5 TB6
TX REF RX REF
OUT OUT IN IN
1 2 3 4 5 6
A B B+ A+ B- A -
TB1
TB2 TB3
+ - + - + -
B+ B- B+ B- B+ B- B+ B- NO C NO NC C NO NC C
+
+
-
-
+
+
-
-
+
+
-
-
+
+
-
-
90
81
72
63
54
-
+
+
-
- +
UL-listed power supervision
relay (shown energized)
To next device
on the SLC
Manual pull station
Heat detector
24 VDC four-wire
smoke detector
24 VDC four-wire detector resettable power:
24 VDC (+) TB1-5
24 VDC (–) TB1-6
SLC out
SLC (+) TB6-3
SLC (–) TB6-5
End-of-Line Resistor
47K, 1/2-watt
PN SSD A2143-00
(N-ELR in Canada)
afp200-IDC-B-FMM1.cdr
CPU
To Next Page
Loading...