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1-66

Installation 15088:J 10/22/99

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NOTES

• For additional ratings, refer to Appendix A.

• For connection of the initiating devices, refer to the manufacturer's installation instructions packaged with each device.

• For more information, refer to the MMX-2 Installation Instructions.

Figure 4.6-3 illustrates an MMX-1 monitoring normally open contact fire alarm initiating devices that do not

require power and an MMX-2 monitoring powered two-wire smoke detectors and a normally open contact alarm

initiating device. Refer to Figure 4.6-5 for circuits using four-wire detectors.

LIB SLC Port A ( - )

LIB SLC Port A (+)

MMX-1

MMX-2

Heat Detector Pull Station

24 VDC Two-wire Smoke Detectors

47K

End-of-Line

Resistor

(A2143-00)

A-2143-10

3.9K

Listed

End-of-

Line

Resistor

SLC Loop Channel A

Supervised and power-limited

Figure 4.6-3 NFPA Style B Initiating Device Circuit

Power-limited

UL-listed 24 VDC Filtered Regulated Power

Limited Power Supply for Fire Protective

Signaling

MPS-24A/E, TB3 Terminal 1 (+) and 2 (-)

APS-6R, TB2 Terminal 1 (+) and 2 (-)

Terminal 3 (+) and 4 (-)

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