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c.
There are three pigtail wires (black, white and yellow) coming from the AC QUICK
CONNECTOR. The proper wire connection is as follows:
WIRES FROM QUICK CONNECTORCONNECT TO
DO NOT TAMPER WITH WIRES WHEN POWER IS ON!
For alarms that are used as single non-interconnected, stand-alone alarms, do not connect the
yellow wire to anything. Insulate this wire (tape it) in place to make certain the yellow wire cannot
contact any metal parts.
INTERCONNECTION & COMPATIBILITY: Interconnected alarms can provide earlier
warning of fire than stand-alone alarms, especially if a fire starts in a remote area of the
dwelling. When alarms are interconnected, all alarms will sound when one alarm first
goes into alarm. This alarm may be interconnected with a total of not more than 24
interconnected devices, i.e., as many as 11 other USI ELECTRIC or UNIVERSAL model
smoke alarms or combination smoke and carbon monoxide (CO) or smoke and carbon
monoxide / natural gas alarms; 6 other initiating alarms which may be a combination of
USI ELECTRIC or UNIVERSAL CO Alarms and Heat Alarms; and six other non-initiating
devices such as USI ELECTRIC Relay Modules.
This alarm can be interconnected with the following models: 2995, 5304, MI100, MI106,
MDS211, MDS201, 2985, 5303, MI200, MI210, MDS101, MDS107, 3885, 3895, MP118, MP117,
3303, 3304, MP202, MP212, MDSCN111, MDSCN103, MICN109, MICN102, MCN105, MCN108,
SS-785, SS-790, SS-795, SS-2795, SS-2790, SS-2785, SS-2895, HD-130, USI-1103, USI-1203,
USI-1204, USI-1208 (Part #USI-1209), USI-1213, USI-2430, USI-3204, USI-5204, USI-5208,
USI-5213, USI-7385, USI-7390, USI-7485, USI-7490, CD-9385, CD-9390, CD-9485, CD-9490,
CD-9795, USI-7795 AND USI-960, RM-100 Relay.
When any one of these interconnected models goes into alarm, it will trigger the
corresponding alarm within the interconnected system with respect to their sensing
capabilities. Natural gas detection is only present in models MDSCN111, MSDCN103,
MICN109, MICN102, MCN108 and MCN105; therefore, a natural gas alarm will NOT
trigger the alarm of non-natural gas sensing models within an interconnected system.
The following alarms cannot reset units on an interconnected system: USI-7795, CD-
9795, USI-7385, USI-7390, USI-7485, USI-7490, CD-9385, CD-9390, CD-9485, CD-9490.
The following alarms cannot trigger QUICK FIND
interconnected system: USI-7385, USI-7390, USI-7485, USI-7490, CD-9385, CD-9390, CD-
9485, CD-9490.
The following alarms can trigger QUICK FIND
Alarm Origination on an interconnected system: USI-1103, USI-1203, USI-1204, USI-1208
(Part #USI-1209), USI-1213, USI-5204, USI-5208, USI-5213, USI-3204, CD-9795, USI-7795,
USI-2430, SS-785, SS-790, SS-795, SS-2795, SS-2790, SS-2785, SS-2895, HD-130.
The following alarms cannot be reset through an interconnected system because they
do not have QUICK FIND
(Part #USI-1209), USI-1213, USI-5204, USI-5208, USI-5213, USI-3204, USI-2430, SS-785,
SS-790, SS-795, SS-2795, SS-2790, SS-2785, SS-2895, USI-7385, USI-7390, USI-7485, USI-
7490, CD-9385, CD-9390, CD-9485, CD-9490, CD-9795, USI-7795.
Interconnected CO alarms or CO alarm circuit of combination smoke and CO and Natural
Gas alarms will only respond if a CO alarm / event initiates the alarm. All other alarms
remain silent.
Interconnected combination Natural Gas Alarms will only respond if a natural gas event
initiated the alarm. All other alarms remain silent.
Interconnected smoke alarms, heat alarms and relay modules will only respond if a smoke
alarm / event or heat alarm / event initiates the alarm. All CO and Natural Gas alarms
remain silent.
Note that smoke alarms without battery backup will not respond during an AC power failure.
NOTE: Relay Modules/USI-960 will not respond if a CO or Natural Gas alarm / event
initiates the alarm.
BLACK
WHITE
YELLOW
®
Alarm Origination: USI-1103, USI-1203, USI-1204, USI-1208
"HOT" side of AC line
"NEUTRAL" side of AC line
Interconnect wires of other alarms
®
Alarm Origination, but will not indicate
Page 8
®
Alarm Origination on an
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