Rev. 2 - 12/08
EMERGENCY CALL SWITCH
The Alpha Communications® SF119/4B Emergency Switch
features a rugged, long-life, positive-acting switch mounted
on a durable ABS plastic faceplate. Signaling an emer-
gency 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. It is primarily designed to be used with
the AlphaStatus™ room status system, but can be used for
other low-voltage applications as well.
The SF119/4B provides four separate circuits to operate 4
separate signaling devices, such as a remote annunciator
lamp, and a corridor dome lamp, a corridor zone lamp, or
other similar type application.
The SF119/4B features a rugged, long-life, positive-acting
switch mounted on a flame retardant type ABS plastic
faceplate marked "EMERGENCY".
If a 'call placed' or 'call assurance' capability is required, we
recommend that you use our SF118 series pull cords, which
have a built-in Red L.E.D. 'call placed' indicator.
Height: 4.50" (114mm) (less cord)
Width: 2.75" (70mm)
1.50" (38mm) (into wall)
White ABS plastic.
SF119/4B - 2PDT
4 separate sets of N/O latching contacts
Switch rating: 125V, 3A(AC) / 5A(DC)
Pigtail wire leads (4 sets of 2)
Standard single-gang electrical box
"EMERGENCY" in Black Letters
6 foot long (can be shortened in field),
made of durable Nylon
Refer to system wiring diagram for more complete wiring
information. These switches are low-voltage Class II type
and should only be used for low-voltage indoor applica-
tions. They are not suitable for wet environments.
ARCHITECTS' AND ENGINEERS'
The Emergency Call switch(es) shall be Alpha Com-
munications® model SF119/4B or approved equal
with pull cord operated switch, mounted on a durable
ABS plastic faceplate marked "EMERGENCY". Sig-
naling for assistance shall only require a short pu