Special Requirements for Interconnected Alarms

IMPORTANT:

  • Failure to meet any of the requirements could damage the units and cause them to malfunction, removing your protection.

  • AC and AC/DC Alarms can be interconnected. Under AC power, all units will alarm when one senses smoke or CO. When power is interrupted, only the AC/DC units in the series will continue to send and receive signals. AC only powered Alarms will not operate.

Compatible Interconnected Units

Interconnect units within a single family residence only. Otherwise all households will experience unwanted alarms when you test any unit in the series. Interconnected units will only work if they are wired to compatible units and all requirements are met.

Video: Interconnect a BRK Alarm

Learn about the different ways to interconnect BRK smoke and carbon monoxide alarms for whole-home protection.

This unit is designed to be compatible with: First Alert and BRK Smoke Alarm Models SM100V-AC, SM110V-AC, SM300-AC, SMI100-AC, SMI105-AC, and SM110LED-AC, C01-W01 (Nova), CO6-W01A (Nova). First Alert and BRK Smoke & CO Alarm Models: SMCO100V-AC, SMCO110V-AC, SMICO100-AC, SMICO105-AC, SMCO600NV-AC, SMCO600NV-ACA, and SMCO110LED-AC; RM4 Relay and SLED177 Strobe when connected via an RM4 Relay.

During an Alarm:

On Initiating Alarms: Red LED(s) flashes (flash) rapidly

On All other alarms: Red LED is Off

After an Alarm (Latching):

On Initiating Alarms: Red LED(s) on for 2-seconds/Off for 2-seconds

On All other alarms: Green LED(s) On, Red LED(s) Off

Interconnected units must meet ALL of the following requirements:

  • A maximum of 18 compatible units may be interconnected (Maximum of 12 Smoke Alarms).

  • The same fuse or circuit breaker must power all interconnected units.

  • The total length of wire interconnecting the units should be less than 1000 feet (300 meters). This type of wire is commonly available at Hardware and Electrical Supply stores.

  • All wiring must conform to all local electrical codes and NFPA 70 (NEC). Refer to NFPA 72, NFPA 101, and/or your local building code for further connection requirements.

A. Unswitched 120VAC 60 Hz source

B. To additional units; Maximum = 18 total (Maximum 12 Smoke Alarms)

1. Alarm

2. Ceiling or Wall

3. Power Connector

4. Wire Nut

5. Junction Box

6. Neutral Wire (Wht)

7. Interconnect Wire (Orange)

8. Hot Wire (Blk)