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Detectors and Accessories | Motion PIR | 157
Top View
Standard Broad Coverage: 9 m to 15 m x 15 m
(30 ft to 50 ft x 50 ft)
Side View
Standard Broad Coverage: 9 m to 15 m x 15 m
(30 ft to 50 ft x 50 ft)
Top View
Optional Barrier Coverage: 15 m to 25 m x 5 m
(50 ft to 80 ft x 16 ft)
Side View
Optional Barrier Coverage: 15 m to 25 m x 5 m
(50 ft to 80 ft x 16 ft)
Top View
Optional Long Range Coverage: 25 m to 36 m x 3 m
(80 ft to 120 ft x 10 ft)
Side View
Optional Long Range Coverage: 25 m to 36 m x 3 m
(80 ft to 120 ft x 10 ft)
Technical Specifications
Environmental Considerations
Temperature (Operating): -29°C to +49°C (-20°F to +120°F). For UL
Listed Requirements, the temperature
range is 0°C to +49°C (+32°F to +120°F).
Power Requirements
Standby Power: There is no internal standby battery. Connect to DC
power sources capable of supplying standby power if
primary power fails. For each hour of standby time
needed, 350 µAh are required. For UL Listed Require-
ments, 4 hrs. (1400 µAh) minimum is required.
Voltage (Input): 12 VDC from panel's MUX bus and optionally from an
auxiliary power supply.
Current Draw (two-wire):
LED Off: < 350 µA draw on MUX bus
In Alarm; LED On: 2 mA draw on MUX bus
Current Draw (four-wire):
LED Off: < 350 µA draw on MUX bus, 0 mA draw on Aux. power
In Alarm; LED On: < 350 µA draw on MUX bus, 3 mA draw on Aux. power
Ordering Information
MX775i Multiplex PIR Intrusion Detector
Provides a tamper switch, movable mirrors,
and selectable sensitivity.
MX775i
Accessories
B328 Gimbal‑mount Bracket
Mounts on a single-gang box and allows rota-
tion of a detector. Wires are hidden inside.
B328
Swiveling B335-3 low-profile mount
Swiveling, low-profile, plastic mount for wall
mounting. The vertical swivel range is +10° to
-20°, while the horizontal swivel range is ±25°.
Available in triple packs.
B335-3
OMB77‑3 Barrier Mirror
Provides barrier coverage with a 25 m x 5 m
(80 ft x 16 ft) pattern. Shipped in packages of
three.
OMB77-3
www.boschsecurity.com Bosch Security Systems B.V.
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