Appendix B: NFPA Standard-Specific Requirements
Local Energy Municipal Box
40
MS-4412B/MS-4424B Instruction Manual PN 15125:G1 10/22/02
Local Energy Municipal Box
Using the 4XTMF (4412TM) Transmitter Module for connection to a Local Energy Municipal Box.
• The Municipal Box circuit supervises for ground faults and opens (i.e. missing wire) but not for
direct short between two wires. It is not a power-limited circuit.
• This application is not suitable for separate transmission of sprinkler supervisory or trouble
conditions.
• Maximum loop resistance allowed for wiring from control panel to Municipal Box is 3 ohms.
Figure 25 Municipal Box Connection
TB1
TBL
J1
J2
FIRE
+
–
Local Energy
Municipal Box
Municipal Box Circuit
4XTMF Transmitter Module
(activated polarities shown)
MS
44
-4
xtm
fm
b.
cd
r
