Hardware Installation—Installing the IFC-1010/2020
85
M502MJ Operating Power
The M502MJ requires connection of 24 VDC filtered, regulated, and
resettable power on Terminals 3 (-) and 4 (+). This power connection is
supervised by the M502MJ. A maximum of 40 M502MJ modules may be
installed on a LIB due to increased power consumption over the M500MJ.
M500MJ or M502MJ
SLC Loop (-)
SLC Loop (+)
24 VDC (-)
24 VDC (+)
M502MJ only
M502MJ only
Style D (-)
Style D (+)
Style B (+)
Style B (-)
1
5
2
6
3
7
4
8
9
m50xmj1
Figure 58: M500MJ or M502MJ Monitor Modules
M501MJ Monitor Module
The M501MJ Monitor Module is an addressable module that is
functionally and electrically identical to an M500MJ Monitor Module
(configured for NFPA Style B), but offered in a smaller package for
mounting directly in the electrical box of the contact-type device being
monitored.
0
1
2
3
45
6
7
8
9
0
1
2
3
45
6
7
8
9
ADDRESS
LOOP
Set the module address
with these switches.
IDC (-)
(White)
IDC (+)
(Violet)
SLC (+)
(Red)
SLC (-)
(Black)
m501mj
NFPA Style B Initiating Device Circuit
Terminate with an End-of-Line Resistor 47K,1/2 watt (A2143-20)
Figure 59: M501MJ Monitor Module
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