How do you wire it to connect your fire sprinklers to the smoke alarms?

Hard wired into the 120 VAC to the smoke detector, Black - HOT, White - Neutral, Red - Interconnect. Alarm output; Blue - Common, Yellow - N/C, Orange - N/O, Grey - 9VDC output. http://www.kidde.com/Documents/1276en.pdf The Kidde relay modules can be used to activate auxiliary warning devices such as external bells and sirens, hallway or stairway lighting. Each relays will only activate when it receives a signal from an interconnected alarm.

Will the relay still trigger in a power outage?

No, unless you have backup power to the alarms and the relay.

Can I use this to trigger the alarms from either normally open or closed switch? Like a pull station?

Yes, this device can be used in either direction, as detailed in the manual. If you use an external relay (like a pull station) to short the grey wire (9v signal) with the red wire (interconnect bus), it will cause the rest of the stations to alarm.

Does it matter to use normally open or normally closed? i have a apc power battery backup that powers multiple servers. if smoke alarm then no or nc?

It's my understanding that normally open and normally closed are both supported by apc power backup and Kidde SM120X. My advice is to use normally closed because this is a better fail-safe configuration. If you use normally closed and the connection is broken the apc will shut down. If you use normally open and the connection is broken the apc will remain running and you may never be aware that the connection was broken. I don't know which side should provides the voltage for a normally closed contact, but the SM120X has a DC output voltage for this purpose.

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KiddeSM120X Interconnect Accessories Smoke Relay Module

Product ID: 75022590

Details

Brand
Kidde
Style
Modern
Power Source
Corded
Color
Black
Item Weight
0.1 Pounds
Alarm
Audible

⚡120 VAC power supply

🔗Interconnects multiple alarms

🛠️Includes 10 in. 18 GA pigtail leads

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Description

🔔 Stay connected, stay protected — the smart relay your safety system deserves!

COMPACT LIGHTWEIGHT - At just 1.6 ounces and 7x14x7 inches, it fits discreetly into any modern installation.
USER FRIENDLY CONTROLS - Equipped with a test/reset button for effortless maintenance and peace of mind.
UNIVERSAL COMPATIBILITY - Works flawlessly with Kidde Fyrnetics devices and manual pull stations for versatile safety setups.
SEAMLESS POWER SWITCHING - Automatically toggles connected devices on smoke/heat detection for instant alerts.
UL CERTIFIED RELIABILITY - Built to meet rigorous UL standards, ensuring trusted performance when it matters most.

The Kidde SM120X Smoke Relay Module is a UL-approved, corded electric accessory designed to interconnect multiple smoke and heat alarms. Featuring a 120 VAC power supply and 10-inch 18 GA pigtail leads, it enables seamless power switching to auxiliary devices upon detection. Lightweight and compact, it supports manual pull stations and Kidde Fyrnetics devices, ensuring versatile and reliable fire safety integration.

Specifications

Brand	Kidde
Style	Modern
Power Source	Corded Electric
Color	Black
Item Weight	0.1 Pounds
Alarm	Audible
Material	Plastic
Number of Items	1
Manufacturer	Lumtopia
UPC	785577434471 696505167180 765044830968 094700432490 047871001231
Part Number	SM120X
Item Weight	1.6 ounces
Product Dimensions	7 x 14 x 7 inches
Item model number	SM120X
Is Discontinued By Manufacturer	No
Finish	Wired
Item Package Quantity	1
Included Components	Kidde - Interconnect Accessories Smoke Relay Module: 408-Sm120X - smoke relay module
Batteries Included?	No
Batteries Required?	No

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