FireLite SLC Wiring Manual —
P/N 51309:R3
7/29/2019
39
MDF-300 Wiring Diagrams
Monitor Modules
5.5 MDF-300 Wiring Diagrams
Following is a wiring diagrams that depict NFPA Class B Initiating Device Circuits (IDCs) using MDF-300 Dual Monitor Modules.
5.5.1 Wiring a NFPA Class B IDC with an MDF-300
Connect the SLC wiring to the module terminals 1 (–) and 2 (+).
Use the rotary switches on the module to set it to the SLC address. Each dual module takes two addresses on the SLC. Circuit ‘L’ corre-
sponds to the address set on the rotary switches, which will be an even number. Circuit ‘H’ will automatically respond to the next higher
address, which will be an odd number. Use caution to avoid duplicate addressing of modules on the system. Refer to “Setting an SLC
address for a Single Point Module” on page 33.
Each IDC (H & L) is power limited to 230 microamperes @ 24 VDC.
The figure below shows typical wiring for a supervised and power-limited NFPA Class B IDC using an MDF-300-10 module.
•
Refer to the
Device Compatibility Document
for compatible smoke detectors.
•
See “Power Considerations” on page 63 for information on supervising 24 VDC power.
T11
T10
T9
T8
T7
T6
T1
T2
T3
T4
T5
SL
C-id
c
B
3f
d
m
1t
p
h
.w
mf
Heat
Detector
Manual
Pull
Station
SLC
MDF-300
Base +1 Address
(IDC Circuit
H)
Base Address
(IDC Circuit
L
)
47K
ELR
47K
ELR
Manual
Pull
Station
Figure 5.14 Typical Class B IDC Wiring with an MDF-300