Bosch EX27 User Manual

INSTALLATION INSTRUCTIONS

EX27/EX27N/EX27D

All-Weather Cameras

MAN-27/27N/27D-01

1

IMPORTANT SAFETY INSTRUCTIONS

1. Read these instructions.

2. Keep this instruction.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in
accordance with manufacturer instructions.

8. Do not install near any heat sources such as
radiators, heat registers, stoves or other
apparatus (including amplifiers) that produce
heat.

9. Do not defeat the safety purpose of the polarized
or grounding-type plug. A polarized plug has two
blades with one wider than the other. A
grounding type plug has two blades and a third
grounding prong. The wide blade or the third
prong is provided for your safety. If the provided
plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.

2

10. Protect the power cord from being walked on or
pinched particularly at plugs, convenience
receptacles, and the power where they exit from
the apparatus.

11. Only use attachments/accessories specified by
the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or
table specified by the manufacturer, or sold with
the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination to
avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or
when unused for long periods of time.

14. Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has
been damaged in a way, such as power-supply
cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture,
does not operate normally, or has been dropped.

3

IMPORTANT

For best results, please read this Instruction Booklet prior

to installing the EX27 camera.

EU Directives covered by this declaration:
72/9/EC Low Voltage Directives
89/336/EEC Electromagnetic Compatibility Directive

This installation should be made by a qualified service

person and conform to all local codes.

Bosch Security Systems will not be responsible for

injuries or damages resulting from the improper installation

or use of any camera sold by Bosch Security Systems,

their agents, distributors or dealers.

4

NOTE: This equipment has been tested and found to
comply with the limits for a digital device, pursuant to part
15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. As part of its’ normal operation this
device can generate radio frequency energy and if not
installed and used in accordance with the installation
manual may cause interference to radio communications.
However, there is no guarantee that interference will not
occur on a particular installation. If the device does cause
interference to radio or television reception the user is
encouraged to try to correct the interference by one or
more of the following measures:

1) Fit Ferrite beads on all cable to and from the power
supply box, within the box walls.

2) Route the composite cable between the camera and the
power supply in steel conduit piping over the entire run of
the cable up to and including connection to a deep conduit
base fitted under the camera and a conduit fitting adaptor in
the wall of the PSU box.

3) Contact a Bosch Service Center for further advice.

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INDEX – EX27/27N/EX27D

DESCRIPTION....................................................... 7

1.

2. UNPACKING.......................................................... 8

3. EX27/EX27N MECHANICAL SPECIFICATIONS... 9

4. EX27D MECHANICAL SPECIFICATIONS........... 10

5. INITIAL PREPARATIONS .................................... 11

6. GUIDELINES........................................................ 12

7. VOLTAGE INPUT................................................. 13

8. CAMERA AND LENS ACCESS ........................... 14

9. PHOTOCELL ADJUSTMENTS ............................ 17

10. LENS ADJUSTMENTS......................................... 19

11. OSD MENU SYSTEM .......................................... 21

12. TROUBLESHOOTING GUIDE ............................. 40

13. GENERAL SPECIFICATIONS ............................. 43

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1. DESCRIPTION

The EX27 camera is an all-weather system that
includes all of the best features of a “plug and
play” camera without compromise to CCD optics
and lens quality.

Full size vari-focal auto-iris lenses are integrated
as standard equipment for simplified
installations. High resolution extended day/night
CCDs ensure that a picture is received under
extreme outdoor lighting conditions.

The EX27 is rugged, compact, power protected,
weather sealed, easily installed and designed for
use in industrial applications.

A voltage regulator circuit automatically allows
for 12VDC or 24VAC operation without any
wiring changes. Its wider voltage range also
provides protection from voltage surge, transient
spikes, and reverse voltage.

The EX27 is available in several models to meet
individual requirements or specific needs.

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2. UNPACKING

Care should be taken when unpacking. Check the
parts list and confirm all items have been located.
Inspect the equipment thoroughly to ensure nothing
was damaged in transit.

Contact a Bosch Service Center if a problem is
noted, see the rear page of this booklet for contact
numbers.

PARTS LIST (items supplied with unit)

- EX27/EX27N/EX27D camera assembly

- Installation Instructions

- Universal type pan/tilt mounting bracket with

¼ - 20 captive nut

-3mm Allen key

ITEMS REQUIRED FOR INSTALLATION

(not supplied with unit)

- Hardware for camera mounting (bolts, etc.)

- Mounting tools and wrenches

- Optional mounting brackets (contact

Bosch for details and prices)

8

3. EX27/EX27N MECHANICAL
SPECIFICATIONS

9

4. EX27D MECHANICAL SPECIFICATIONS

10

5. INITIAL PREPARATIONS

 Determine the operating voltage at the

installation site.

 All cameras have been tested prior to

shipment.

Select a suitable location that is protected from
accidental damage, tampering, and
environmental conditions exceeding the camera’s
specifications.

Caution: The selected mounting location should
not place the camera in a situation where its
environmental specifications could be exceeded.

Ensure the selected location is protected from
falling objects, accidental contact with moving
objects, and unintentional interference from
personnel. Follow all applicable building codes.

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6. GUIDELINES

The following installation guidelines must be
followed:

 Locate the camera such that it cannot be

easily interfered with, either intentionally or
accidentally.

 Select a mounting surface capable of

supporting the combined weight of the
camera and mounting hardware under all
expected conditions of vibration and
temperature.

 Secure all cabling.
 Installations on drywall must use a ¼” bolt

and drywall butterfly type anchor or superior
connection.

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7. VOLTAGE INPUT

The camera unit is pre-connected with an
electrically isolated power board for 24VAC or
12VDC operation with no wiring change or wiring
polarity. See figure 7-1 for wiring details.

Note

: Input voltage is 10.5VDC to 40VDC for DC

input. The AC input range is 12VAC to 28VAC.

Power

Power

IN
from

supply

OUT

to
camera

FIGURE 7 – 1

12VDC or 24VAC

Electrically Isolated Board

13

8. CAMERA AND LENS ACCESS

The following steps show the installer how to
access the camera board and the camera lens.

Step 2.1 - Remove the four cap screws with a

3mm Allen key. See Figure 8-1 on
page 15.

Step 2.2 - Carefully slide out the rear housing

from the main enclosure. Make sure
the gasket remains with the rear
section. See Figure 8-2 on page 16.

Step 2.3 - Make any necessary camera or lens

adjustments as described in
Section 9, 10 or 11.

Step 2.4 - Carefully slide the rear section into

the main enclosure and tighten the
cap screws.

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Cap

screw

FIGURE 8 – 1

Rear Housing Removal

15

FIGURE 8 – 2

Camera and Lens Access

16

9. PHOTOCELL ADJUSTMENTS

The photocell settings are optimally set from the
factory; only adjust these settings if experiencing
undesired day/night switching operation. To
increase the night switching sensitivity turn the
dial clockwise, to increase the day switching
sensitivity turn the dial counter-clockwise. For
EX27N versions refer to figure 9-1. For EX27 and
EX27D refer to figure 9-2.

Power to
LED Array

Power
Input

Photocell
Adjustment

12V
Enable

FIGURE 9 – 1

EX27N LED Array Power Board

17

Photocell Adjustment

FIGURE 9 – 2

EX27/EX27D Day/Night Switch

Adjustment

18

10. LENS ADJUSTMENTS

Refer to figure 10-1 and follow the directions below:
 Loosen the lens set screws for focus/zoom

adjustments.

 The adjustment marked T ←→ W is for image

zoom.

 The adjustment marked N ←→ ∞ is for image

focus.

 Re-tighten the setscrews after focus adjustments

have been completed.

FIGURE 10 – 1

EX27 Vari-focal Lens Focus Adjustment

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Use a Neutral Density filter or an Infra-Red Pass filter to

cover the lens during focusing to simulate low light
conditions on scene for correct 24-hour focusing. For vari­focal lenses, the camera should be focused with the lens
iris fully opened to simulate the worst possible depth of
field. Using a Neutral Density filter or Infra-Red Pass filter
will ensure the iris is fully open for correct setup and
adjustment.

Note that statement above is applicable only for Day/Night

or IR version cameras.

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11. OSD MENU SYSTEM

1. Follow the instructions in Section 8 to
access the OSD controls.

2. Enter the OSD menu by pressing the
joystick button; to navigate through the
menu use up, down, left and right.

3. Follow the instructions below to make
camera adjustments.

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

12. TROUBLESHOOTING GUIDE

PROBLEM POSSIBLE

CAUSE

No Video 1. Power Supply:

-Connections….

-Voltage Range...

LIKELY

SOLUTION

Check input power
connections at the
cable leads.
Check for loose
wires.

If connected to DC,
check voltage input
range of 10.5 - 40 V.

If connected to AC,
check input voltage
range of 12 – 28 V.

Measure the voltage
at the Input terminal
block.

40

No Video

2. Video

Determine if wiring

(cont’d.)

__________

Poor
Picture
Quality

Snowy
Image

Connections

________________

Poor Video Signal

polarity at “Video
Connector” terminal
block is correct.
Check BNC
connector.

If still no video,
connect the camera
directly to the
monitor. Check the
video signal. If okay,
the problem is with
the interconnections.
If still no video,

contact

a Bosch
Service Center.
See rear page of
this manual for
contact
information.

_________________
Ensure video cable is
correctly matched
and terminated with
75 ohms at each end.
Make sure video
cables are similar
types.

41

Poor
Picture
Quality

Snowy
Image
(cont’d.)

Horizontal
Scan Lines,
Rolling Up
or Down

Noisy Power
Supply

Ground Looping on
video cable

Check connections.
Relocate or replace
power supply.

Check the coax cable
shield is not touching
ground, e.g. at
couplings.
An electrically
isolated circuit board
or isolation

Negative,
scrambled,
or faded
image

24V ac operation

Low voltage

transformer may be
required.

Line Lock adjustment
required.

Check voltage at
input power cable.
Must be >10.5V dc or
>12V ac.

42

13. GENERAL SPECIFICATIONS

Input Voltage: 10.5-40 VDC
12-28 VAC
(50/60Hz), 4.5W

Enclosure (housing): Aluminum casting and

extrusion (sealed to

IP66 / NEMA4)

Viewing Window: Polycarbonate

Weight: 1.4kg ( 3.1lbs. )

Subject to Change Without Notice.

43

Notes:

44

Notes:

45

Notes:

46

Notes:

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Americas
Bosch Security Systems, Inc.
850 Greenfield Road
Lancaster, Pennsylvania 17601 USA
Telephone: + 1 888-289-0096
Fax: + 1 585-223-9180
[e-mail]
www.boschsecurity.us

Europe, Middle East, Africa
Bosch Security Systems B.V.
P.O. Box 80002
5600 JB Eindhoven, Netherlands
Phone: + 31 40 2577 284
Fax: + 31 40 2577 330
[e-mail]
www.boschsecurity.com

Asia Pacific
Bosch Security Systems Pte Ltd.
11 Bishan Street 21, Singapore, 573943
Phone: [phone]
Fax: [phone]
[e-mail]
www.boschsecurity.com

© Bosch Security Systems Inc. 2010; Data subject

to change with out notice

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