Bosch EN1235S Specsheet
Intrusion Alarm Systems | EN1235S Belt Clip Pendant (Single‑button)
EN1235S Belt Clip Pendant (Single‑button)
www.boschsecurity.com
u Single-‑button activation
u State-of-the-art radio
u Supervised radio link
The EN1235S Belt Clip Pendant Transmitter provides a
single-button activation, respectively. The
single‑button design is ideal for assisted living
installations. One light‑emitting diode (LED) flashes
with all transmissions, including supervision, to clearly
show users when the unit is operating. The pendant
includes a belt clip and a battery. The pendant can
also be mounted for fixed position signaling, adapting
to a wide range of installations.
With the superior range and reliability offered by the
Inovonics EchoStream platform, there is virtually no
limit to the applications that can benefit from this
pendant. The Inovonics EchoStream platform uses
diversity reception and advanced signal processing to
reduce dead spots in transmission areas.
System overview
Powered by Inovonics
The Inovonics EchoStream platform, powered by
Inovonics wireless mesh network technology, ensures
superior range, reliability, and scalability for
commercial applications. Using a wide range of
transmitters and repeaters, this proven technology
provides flexibility and performance to meet the most
stringent requirements. This exclusive protocol is
available only on Inovonics EchoStream products.
u Includes belt clip and battery
u Exclusive wireless protocol ensures maximum
performance and reliability
Wireless 900 MHz Band
The Inovonics EchoStream platform sends redundant
information on several multi-frequency channels within
the FCC Part 15 900 MHz band, providing superior
range and reliability. In comparison, systems that use a
single frequency technology can only send information
on one narrow band channel. Any interference within
the band can cause missed signals. With wireless
registration, it is easy to add this technology to any
application.
Functions
Design
Users can wear the pendant or installers can mount
the pendant in a fixed location.
Supervision
The battery activity and radio link are supervised.
Monitoring helps ensure reliable operation and
safeguards against undetected loss of service due to
end user damage such as dropping the pendant
repeatedly, exposing it to extreme temperature,
getting the pendant wet, or other similar events.
2 | EN1235S Belt Clip Pendant (Single‑button)
Certifications and approvals
Inovonics Wireless Corporation holds the following approvals:
FCC Conforms to FCC Part 15 regulations
Installation/configuration notes
The EN1235S Belt Clip Pendant Transmitter is
compatible with the following products:
Receivers
EN4016SK Survey Receiver
EN4200 Serial Receiver
EN4204R LED Receiver
Repeater
EN5040‑T High‑power Repeater
Parts included
Quantity Component
1 Transmitter
1 Belt clip
1 3.0 V battery
trademark name, Bosch Security Systems, Inc. uses
the names only in an editorial fashion and to the
benefit of the trademark owner with no intention of
infringing the trademark.
Inovonics is a trademark of Inovonics Wireless Corporation.
Panasonic is a registered trademark of Matsushita Electric Indus-trial
Co., Ltd.
SANYO is a registered trademark of SANYO North America Corporation.
Ordering information
EN1235S Belt Clip Pendant (Single‑button)
Black, single-button pendant that includes belt clip.
Order number EN1235S
Technical specifications
Electrical
Power: 3.0 V, 0.5 Ah
Battery Replacement: Panasonic or Sanyo CR2, or approved
Battery Life (Average): 1 to 2 years. Typical battery life shown is
equivalent. Not all brands are equivalent.
Use a specified brand.
for supervised operation.
Mechanical
Dimensions: 5.6 cm x 4.8 cm x 1.8 cm
Weight: 40 g (1.4 oz)
(2.2 in. x 1.9 in. x 0.72 in.)
Environmental
Relative Humidity: Up to 90%, non‑condensing
Temperature (operating): 0°C to +60°C (+32°F to 140°F)
Transmission Characteristics
Frequency: 902 MHz to 928 MHz
Trademarks
Trademark names are used throughout this document.
In most cases, these designations are claimed as
trademarks or registered trademarks in one or more
countries by their respective owners. Rather than
placing a trademark symbol in every occurrence of a
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