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• When mixing models which have battery backup (1275, 1276, 1285, 1296,
i12040, i12060, i12080, PE120, PI2000, KN-COSM-IB, HD135F, KN-COB-IC,
KN-COP-IC) with models without battery backup, (1235, i12020, KN-COSM-I,
120X, SM120X, CO120X, SL177i) be advised that the models without battery
backup will not respond during an AC power failure.
• The maximum wire run distance between the first and last unit in an intercon-
nected system is 1000 feet.
• Figure 4 illustrates interconnection wiring. Improper connection will result in
damage to the alarm, failure to operate, or a shock hazard.
• Make certain alarms are wired to a continuous (non-switched) power line.
NOTE: Use standard UL listed household wire (as required by local codes) avail-
able at all electrical supply stores and most hardware stores.
FIGURE 4 INTERCONNECT WIRING DIAGRAM
WIRES ON ALARM HARNESS CONNECTED TO
Black Hot Side of AC Line
White Neutral Side of AC Line
Red Interconnect Lines (Red Wires) of Other
Units in the Multiple Station Set up
BATTERY INSTALLATION
See MAINTENANCE (section 7) for battery installation.
CAUTION! IF THE BATTERY REMINDER FINGER IS NOT HELD DOWN IN
THE BA
TTERY COMPARTMENT BY THE BATTERY, THE BATTERY DOOR
WILL NOT CLOSE, THE AC QUICK CONNECTOR WILL NOT ATTACH TO THE
ALARM, AND THE ALARM WILL NOT ATTACH TO THE TRIM RING (SEE
SECTION 7, FIGURE 9).
FUSE OR CIRCUIT BREAKER
REDBLACK
WH ITE
B
LACK
WH ITE
RED
CONNECTOR
CONNECTOR
First
Alarm
Additional
Alarm
Kidde
Relay Module
SM120X
Additional
Alarm
Optional Accessory
Smoke
Alarm
Smoke
Alarm
HD135F
Heat
Alarm
Optional
Accessory