Rev. 3 - 12/07
SF118/2C or SF118/4C
EMERGENCY CALL SWITCH
The Alpha Communications® SF118 Series Emer-
gency Switch is available in two models and fea-
tures a rugged, long-life, positive-acting switch
mounted on a durable ABS white plastic faceplate.
Signaling an emergency requires just a short pull on
the 6' long nylon cord, in any direction. The signal
cannot be canceled except at the point of origin.
The SF118/2C provides two circuits to operate 1-
2 signaling devices, such as a remote annunciator
lamp, and a corridor dome lamp. The SF118/4C
provides two additional signaling circuits to operate
additional options such as floor bell(s) and indi-
vidual apartment electric door openers, as needed.
Both models feature a rugged, long-life, positive-
acting switch mounted on a flame retardant type
ABS plastic faceplate marked "EMERGENCY"
that includes a red call-placed LED.
Height: 4.50" (114mm) (less cord)
Width: 2.75" (70mm)
1.50" (38mm) (into wall)
White ABS plastic.
SF118/2C - 2PDT
SF118/4C - 4PDT
Pigtail wire leads
Standard single-gang electrical box
"EMERGENCY" in Black Letters
Call-placed Red L.E.D.
Refer to typical system wiring diagram IL514 for more
complete wiring information.
Due to continuous product improvement, all colors, sizes, materi-
als, finishes and specifications are subject to change without notice.
ARCHITECTS' AND ENGINEERS'
The Emergency Call switch shall be Alpha Commu-
nications®/Tektone model SF118/2C, SF118/4C or
approved equal with pull cord operated switch,
mounted on a durable ABS plastic faceplate marked
"EMERGENCY" and a Red "Call-Placed" LED indica-
Canceling the call shall be possible only at the point of
origin. Unit shall mount on single-gang electric "gem"
box or plaster ring.
The Emergency Call switch may be used with 'stand-
alone' emergency systems, or the CM800 series