Bosch DS778 Specsheet

0 m 60 m

200 ft

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0

2.3 m

7.5 ft
0 ft

7.5 ft

2.3 m

0 m

0 m

0 ft

0 ft

7.5 ft

2.3 m

60 m

200 ft

Intrusion Alarm Systems | DS778 Long Range PIR Detector

DS778 Long Range PIR Detector

www.boschsecurity.com

u Motion Analyzer II processing

u Pointable mirrored optics

u Q-map signal processing

The wall mount, long range DS778 PIR Detector uses
Motion Analyzer II signal processing to reduce false
alarms. To aid in walk testing, the DS778 features a
high efficiency alarm LED that is visible throughout the
coverage pattern. This allows one installer to install
and test the detector. The detector's internally
pointable optics and mounting options provide
installation flexibility.

Functions

Signal Processing

Motion Analyzer II uses multiple thresholds and timing
windows to analyze timing, amplitude, duration, and
polarity of signals to make an alarm decision. Will not
alarm on extreme levels of thermal and illumination
disturbances caused by heaters and air conditioners,
hot and cold drafts, sunlight, lightning, and moving
headlights. Two sensitivity settings are provided.

Test Features

The high efficiency alarm LED can be seen throughout
the walk test area. Internal noise voltage test pins
provide precise pattern location and background
disturbance evaluation using a standard analog meter.

u Long range coverage

u Four mounting options

Insect and Draft Immunity

The sealed optical chamber provides immunity to
drafts and insects.

Certifications and approvals

Europe Complies with EN50131-1, Grade 2

Region Certification

Europe CE 2004/108/EC EMC Directive (EMC);

2006/95/EC Low-Voltage Directive
(LVD) [DS778]

USA UL ANSR: Intrusion Detection Units

(UL639)

Installation/configuration notes

Top View
Long Range Coverage 60 m x 4.5 m (200 ft x 15 ft)

2 | DS778 Long Range PIR Detector

Side View
Long Range Coverage 60 m x 4.5 m (200 ft x 15 ft)

Technical specifications

Enclosure Design

Dimensions: 14.6 cm x 9.5 cm x 6.35 cm

Material: High impact ABS plastic enclosure

(5.75 in. x 3.75 in. x 2.5 in.)

Environmental Considerations

Operating
Temperature:

Radio Frequency
Interference (RFI)
Immunity:

Complies with Environmental Class II (EN50130-5)

-40°C to +49°C (-40°F to +120°F)

For UL Listed Applications, 0°C to + 49°C (+32°F
to +120°F)

No alarm or setup on critical frequencies in the
range from 26 MHz to 950 MHz at 50 V/m.

Mounting

Height Range: Recommended 2 m to 2.6 m (6.5 ft to 8.5 ft)

Internal
Pointability:

Coverage is adjustable ±10° horizontally, +2° to

-18° vertically.

B338 Universal Ceiling‑mount Bracket

Swiveling plastic mount for ceiling mounting. The
vertical swivel range is +7° to -16°, while the horizontal
swivel range is ±45°.

Order number B338

TC6000 Test Cord

Test cord for connecting a compatible detector’s test
pins to a voltmeter. It is 4.6 m (15 ft) long.

Order number TC6000

Outputs

Alarm: Form C contacts rated at 3.0 W, 125 mA at 28 VDC for

Tamper: Normally-closed. Contacts rated at 28 VDC, 125 mA

resistive loads.

maximum.

Power Requirements

Current Draw: 18 mA at 12 VDC

Voltage: 6 VDC to 15 VDC

Ordering information

DS778 Long Range PIR Detector

Provides Motion Analyzer II processing, movable
mirrors, Q-map signal processing, long range coverage,
and four mounting options.

Order number DS778

Accessories

B328 Gimbal‑mount Bracket

Mounts on a single-gang box and allows rotation of a
detector. Wires are hidden inside.

Order number 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.

Order number B335-3