
Bosch Security Systems, Inc. | 3/12 | F01U266055-01 29
In a mercantile burglar alarm system, an alarm sounding device located within the area of greatest
protection, or outside the area of greatest protection but within an area protected by an alarm system
and that shares a common control unit with the system installed in the area of greatest protection, is
acceptable provided it is rated for inside service and alarm conditions are transmitted to:
a. The dispatch location of the law enforcement agency having jurisdiction over the protected
property or
b. A central station or residential monitoring station complying with the Standard for Central-Station
Alarm Services, UL 827.
An inside sounding device shall be mounted at least 10 feet (3.05 m) above the floor or at the surface
of the ceiling. When there is a fixed construction within the area that could provide access for an
intruder, the alarm sounding device shall also be mounted at least 4 ft (1.2. m) as measured
horizontally, away from the edges of the fixed construction or at least 10 ft (3.05 m) above it so as to
minimize access by an intruder.
8.9 UL 636 (D9412GV4/D7412GV4/D7212GV4)
To comply with UL 636, UL Standard for Holdup Alarm Units and Systems, the GV4 Series control
panels must be installed with the Bosch Model B820 Inovonics Interface Module, Inovonics
EchoStream Model EN4200 Serial Receiver and any of the following Inovonics EchoStream
transmitters: EN1235SF, EN1235DF, or EN1249.
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