background image

3.8

Snap the board into the base 

so the

notch aligns with the tab.

3.9

Select LED operation.

3.11

Microwave range is pre-set.

 Field adjustment is

not required.

Note: If you choose to adjust the range, set the

adjustment as low as possible for proper catch
performance. Be sure to walk test throughout
the coverage pattern after any adjustment.

3.12

Walk test the detector

 at the time of

installation and annually thereafter.

3.10

In non-pet applications only, 

if

look-down is desired, peel away the
look-down mask.

 Do not remove

the clear plastic lens.

4.0

Coverage Patterns

5.0

FCC Notice

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference, including interference that may cause undesired operation.

Changes or modifications not expressly approved by Bosch Security Systems. Inc. can void the user’s authority to operate the equipment.

3.7

Wire the detector.

LED ON

7.5-9ft

7.5-9ft

7.5-9ft

LED ON

7.5-9ft

7.5-9ft

ON

OFF

7.5-9ft

7.5-9ft

INCREASE

LED ON

7.5-9ft

7.5-9ft

Peel away

the mask

0

17.5

17.5

35

0 Feet

10.7

0

Meters

10

20

30

5.35

5.35

0

1

2

3

4

5

6

7

8

9

10

11

This detector contains an
environmental stabilization
circuit. After the initial
powerup, the detector needs
approximately 2 min.  to
warm up. During this time,
the detector does not
respond to any movement.

Note: Wait 2 minutes after the initial

power-up to perform Walk Tests.

e

Microwav
Coverage

PIR
Coverage

Green = PIR detect

Yellow = MW detect

Red = Alarm

e

Microwav
Coverage

PIR
Coverage

Although generally
not required, if
masking is desired,
the lens diagram
shows the
appropriate areas to
be masked. Use an
opaque material
(such as, electrical
tape) to mask the
desired areas.

DS835i Lens
(inside view)

1 2 3 4 5 6 7 8 91011

12

22

23

33

34

44

45

55

56

66

67

77

3.6

Mount the detector.

Note: Avoid possible circuit board damage by only

using the mounting hardware that is provided
in the appropriate punch-out mounting holes.

Do not use excessive
force when adjusting the
microwave pot.

Remove

Don't overtighten the mounting screws

Cover may not attach correctly

Corner Mount

Surface

Mount

Thinwall knockouts

for wiring

=

7.5 - 9 ft.
(2.3 - 2.7 m)

Areas

if using the

B335 Bracket

Do not use

the B335

Bracket in

pet

applications

Note: Only use Limited Power

Source up to 5 A maximum.

LED

+

-

6-15
VDC

Alarm

Contacts

Tamper

Contacts

N

ormally 

C

losed contacts

(DS835iT

only)

35

10.7

0

0

0

3

10

Meters

Feet

0

10

7.5

Look
Down

67-
77

56-
66

45-
55

34-
44

23-
33

12-
22

1-
11

1/11

DS835i/835iT Installation Instructions

P/N: F01U035203-02     Page 2

© 2011 Bosch Security Systems, Inc.
130 Perinton Parkway, Fairport, New York 14450
www.boschsecurity.com

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