COHU 3920 SERIES Installation And Operation Manual

3920 iDOME

INSTALLATION AND OPERATION

COHU, INC. ELECTRONICS DIVISION

Installation and Operation Manual

3920 SERIES
iDOME CAMERA/POSITIONER SYSTEM

Technical Manual 6X-1026E

www.cohu-cameras.com/content/contactus

6X-1026E

Figure 1. iDome

June 21, 2012

www.cohu-cameras.com

[e-mail]

1

INSTALLATION AND OPERATION

TABLE

OF CONTENTS

LIST OF FIGURES

3920 iDOME

SECTION TITLE PAGE

1.0 GENERAL DESCRIPTION

1.1 Electrical Characteristics 3

1.2 Mechanical Characteristics 4

2.0 INSTALLATION

2.1 Installation Introduction 6

2.2 Equipment Supplied 9

2.3 Equipment Required But Not Supplied 12

2.4 Power Requirements 13

2.5 Pendant Mount Installation 16

2.6 Wall Mount Installation 16

2.7 Pole Mount Installation 17

2.8 Alternate Mounting Methods 17

2.9 Testing Cables 16

2.10 System Cabling Requirements

2.11 GUI Interface 26

3.0 OPERATION

3.1 Local Panel Control 30

3.2 Local Laptop PC Control 31

4.0 MAINTENANCE

4.1 Preventive Maintenance 31

SHIPPING AND STATIC DIS-

5.0
CHARGE CONSIDERATIONS

5.1 Unpacking & Receiving Inspection 32

5.2 Preparation for Shipment & Storage 32

5.3 Static Discharge Protection 32

3

5

17

30

31

32

LIST OF TABLES

TABLE TITLE PAGE

1 Basic Mounting Arrangements 5

2 Required Cable Characteristics 14

3 Common System Cables Used 18

4 iDome Connector Functions 28

5 Communications Settings 28

6 Specications 34

FIG. TITLE PAGE

1 iDome 1

2 Model Number Interpretation Diagram 4

3 Dimensions, 3920 5

4 Basic Mounting Congurations 6

5 Model 8540B Test Stand 7

6 Type CTC-29 Cable, Test/ Setup, Wiring Diagram 8

7 Typical RS-232 to RS-422 Converter 8

8 Type CTC-33 Cable, 9200 Control Panel Connection 9

9 Quick Disconnect Assemby 10

10 Wall Mount Arm 10

11 Arm Dimensions 11

12 Typical Pole Mount 12

13 iDome Quick Disconnect Mounting 13

14 Strap Wrench 14

15 Pole Mount Dimensions 14

16 Mast Arm Mount 14

17 Intreconnection Diagram, iDome to Local Control Panel 15

18 Interconnection Diagram, iDome to Equipment Cabinet 16

19 Cable CA-292A 24 Vac (RS-232) All Prepped Leads 19

20 Cable CA-292B 24 Vac (RS-232) Prepped/D9/BNC 19

21 Cable CA-293A 24 Vac (RS-422) All Prepped Leads 20

22 Cable CA-293B 24 Vac (RS-232) Prepped/D9/BNC 20

23 Cable CA-293M 115 Vac (RS-422) RJ-45/Prepped/BNC 21

24 Cable CA-295E 115 V ac (RS-422), All Prepped Leads 22

25 Cable CA-295F 115 Vac (RS-422) Plug, Prepped, BNC 22

26 Cable CA-295G 115 Vac (RS-422) Plug, 422-232, BNC 23

27 Cable CA-295H 115 Vac (RS-232) Single AMP Connector 23

28 Cable CA-295M 115 Vac (RS-232) Plug, RJ45, BNC 24

29 Cable CA-296A 115 V ac (RS-232), All Prepped Leads 25

30 Cable CA-296B 115 Vac (RS-232) Plug, Prepped, BNC 25

31 Cable CA-296C 115 Vac (RS-422) Plug, D9F, BNC 26

32 iDome Pin Layout and Functions 27

33 Typical About WinMPC Screen 29

34 Typical WinMPC Main Screen 29

35 Typical WinMPC Communications Setup Screen 30

36 iDome Maintenance Features 33

2

6X-1026E

3920 iDOME

1.0 GENERAL DESCRIPTION

The iDome series is an integrated camera/posi­tioner unit that integrates a high performance digital
signal processing camera, pan-and-tilt, and control
receiver for communications into one integrated

package (gure 1).

Throughout this manual the entire assembly will
typically be referred to as the “iDome.”

Specications are contained in table 6 at the end

of this manual and a model number interpretation

diagram is provided in gure 2. This diagram can

be used to interpret an existing model number. An
iDome can be operated via either RS-232 or RS­422 communications depending on which pins of
the connector are used. Thus there is no model
number designation to reect a choice for the com­munications mode.

WARNING

Two versions of the iDome operate from volt­ages that can be dangerous: model 3925 (115
V ac) and model 3923 (230 V ac). Use all
appropriate care when installing and main­taining either of these versions of the iDome.

1.1 ELECTRICAL CHARACTERISTICS

INSTALLATION AND OPERATION

a continuous 360 degrees while the tilt range is 0

to 90 degrees from the horizontal with auto-ip at

the 90° point. There are 64 preset positions with a
preset accuracy of 0.1 degree. When responding to
standard pan-preset or manual control, the iDome
can move with a pan speed of 250° per second.

This iDome will operate in temperature ranges
from -34° to +74° C and with winds of up to 90 mph.
The enclosure protects against salt, grime, dirt, and
moisture.

The integrated receiver/driver, contained within the
iDome, communicates using Cohu protocol mes­sages and will also control the digital DSP camera
functions. All iDome functions are operable via
either RS-232 or RS-422 serial communications.

The iDome is fully compatible with existing Cohu
controllers. In case of power failure, all 64 preset
positions are stored in nonvolatile memory.

Each iDome “address” within a surveillance sys­tem can be selected electronically from the Monitor­ing Center. There are no mechanical dip switches
to set at the camera, and each unit responds to the
central command only if addressed. This provides

greater integration exibility for the designer and

more dynamic camera control for the operator

The camera uses digital signal processing. It has
an internal source ID generator. Integration control
plus a built-in video storage card provides full color
continuous video even at very low light levels.

The iDome speeds are variable with maximums
of 250° per second for pan and tilt. Pan range is

NOTE: This equipment has been tested and found to comply with the
limits for a Class A Digital Device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communica­tions. Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct
the interferecne at his own expense.

1.1.1 Control Software

WinMPC

WinMPC Graphical User Interface (GUI) software

is available for setting the address and performing

eld tests when connected to a single camera. (It

cannot be used to control more than one camera at

This device complies with Part 15 of the
FCC Rules. Operation is subjected to the
following two conditions: (1) this device
may not cause harmful interference and (2)
this device must accept any interference
received, including interference that may
cause undesired operation.

CAUTION: Changes or modications to

this device not expressly approved by
Cohu Electronics could void the user’s
authority to operate the device.

6X-1026E

3

INSTALLATION AND OPERATION

MODEL NUMBER INTERPRETATION DIAGRAM

392×—××0×—××××

3920 iDOME

SERIES

DSP color/mono 1/4 inch
progressive scan dome
camera with zoom lens

POWER

424 Vac
5115 Vac

VIDEO

5 NTSC 35X Day/Night EIS
7PAL Phase Adjust Line Lock
8 PAL 35X Day/Night EIS

EIS is Electronic Image Stabilization

Figure 2. Model Number Interpretation Diagram

a time.) The WinMPC software can be obtained at
no cost from either the Cohu-Cameras.com web site
or by mail on CD.

CAMS

The CAMS software is intended for controlling
multi-iDome systems when the Cohu MPC Master
Control Panel is the central control “intelligence” for
the system. All control and response commands
among the various equipment in the system pass
through the Master Control Panel.

MOUNT

PEND

FEATURES

Low Pressure Indicator
Heaters
Variable Speed
360° pan

POLE
WALL

DOME

0Clear
1Smoked

PROTOCOL

1Cohu Protocol
 American Dynamics
 Pelco D
 Ultrak
 Vicon
 Javelin
 Kalatel
 Philips / Bosch
2NTCIP Protocol

two primary subassemblies inside the dome: (1) the
camera and (2) the positioner.

All camera circuits are contained within a sealed
and pressurized environmental dome housing
having either a clear or a smoked window through
which the camera lens views outside scenes.

This dome is fully covered by a sun shield spaced
slightly away from the housing itself. This minimizes
heat buildup due to sunlight. Vent holes at the top

of the dome must be kept clear to maintain air ow.

Figure 3 gives dimensions of the iDome.

Typical Protocol
Selections

NetCAMS

The NetCAMS software is intended for controlling
multi-iDome systems when a Windows based PC is
the central control “intelligence” for the system. All
control and response commands among the vari­ous equipment in the system pass through the Net
Cams Server.

1.2 MECHANICAL CHARACTERISTICS

Although the iDome is a single mechanical assem­bly for installation purposes, it actually consists of

4

The iDome is a sealed and pressurized (dry nitro­gen) unit intended for indoor or outdoor use under
rain, snow, and other typical harsh weather condi­tions.

Communications circuits contained within the
iDome are also protected from outdoor weather
conditions.

A sealing type MS connector is used on the hous­ing and when mated with a similar MS type cable
connector a good environmental seal is provided for
the mating pins and sockets.

6X-1026E

3920 iDOME

INSTALLATION AND OPERATION

Figure 3. Dimensions, 3920 iDome

A single multiconductor cable is routed to the
iDome location and then passed through the mount­ing pendant to provide for all signal, video, and op­erating power connections. Pin functions and layout

are shown in gure 32.

2.0 INSTALLATION

This section of the manual provides general
instructions about installation of the iDome using
various mounting arrangements.

The actual installation should be performed by a

qualied installation professional familiar with all the

local requirements for proper installation.

6X-1026E

Table 1. Basic Mounting Arrangements

MOUNT

CONFIG.

Pendant

Wall

Pole

NOTE: Dot ( • ) designates items supplied for

each mounting conguration.

iDOME ARM

•

• •

• • •

POLE

BRACKET

5

INSTALLATION AND OPERATION

3920 iDOME

Always preplan the installation to be sure that all
required cabling and address assignments are com­pleted. It may also be important to know the orienta­tion of the iDome when it is mounted at its location.

The Schrader valve (gure 36) should be accessible

for adding dry nitrogen if necessary.

The model number label indicated a mechani­cal home reference for all iDomes. Electrical home
for panning is 90° clockwise from this position as
viewed from above.

Table 1 lists the three basic mounting arrange­ments. That pendant version consists of only the
iDome itself. The wall mount version of an iDome is
shipped with the wall mount arm. The pole mount
version is shipped with both the wall mount arm and
a pole mount bracket to which the wall mount arm
attaches.

Section 5 of this manual covers receiving inspec­tion, packing and return requirements for a return to
the factory, and static discharge protections.

PENDANT MOUNT

2.1 INSTALLATION INTRODUCTION

This section is a brief overview of the various
mounting types. The installation methods described
in this manual are a general overview of typical in­stallations. Since the particular conditions at various
installation sites can vary widely, it is best if the ac­tual installation is performed only by a professional
installer familiar with all local requirements.

2.1.1 Basic Mounting Congurations

An iDome can typically be mounted in any one of

three mechanical congurations (gure 4):

2.1.1.1 Pendant Mount - The basic conguration.

The iDome hangs directly from a supplied 1.5­inch female NPT (national pipe thread) support.
This support must provide for the connector of a
multiconductor cable to pass down through the 1.5­inch pipe nipple for mating with the iDome.

2.1.1.2. Wall Mount - This mounting arrangement

requires an arm that bolts to the wall. The iDome
hangs from the end of this arm.

WALL MOUNT

POLE MOUNT

2.1.1.3. Pole Mount - This mounting arrangement

is similar to the Wall Mount — except that the
mounting arm attaches to a bracket fastened to a
pole instead of directly bolting to a wall.

Table 1 summarizes the major items supplied for
each of these three installation methods. Each of
these installations will be expanded upon in a later
sections.

2.1.2 Installation Checklist

Before starting the installation of an iDome the
following check lists should be read for an overview
of the process.

2.1.2.1 Test Bench Checkout - To check out

an iDome and set its address at a test bench

before taking it into the eld for installation, use the

following as a guideline:

Figure 4. Basic Mounting

Congurations

6

1. Mount the iDome to a test stand (gure 5).

This stand is also available with another

6X-1026E

3920 iDOME

INSTALLATION AND OPERATION

set of three legs that increases it from a
20-inch height to a 38 inch height.

2. Connect the test cable (gure 6) to the

connector at the top of the dome

3. Connect the other end of the cable to the
laptop. (Either a test cable with integral
RS-232 to RS-422 converter or separate

converter must be used. See gures 6

and 7.)

CAUTION

Step 4 assumes that the iDome operates from 115 V
ac power. If a 230 V ac iDome is to be operated from
this cable, a 115/230 adapter will have to be used.
This cable cannot be used with an iDome operating
from 24 V ac. Different connector pins are used.

4. Connect the power plug of this cable to
115 V ac — or for a 230 V ac iDome, re­move the115 volt plug and replace it with
a 230 V ac plug. (This cable cannot be
used with 24 V ac iDomes.)

5. Connect a tv monitor to the cable. This
monitor must be terminated with 75
ohms. Monitors typically have a rear
panel switch to select either 75 ohms or
no termination (Only the end of the coax
cable can be terminated with 75 ohms.
Any other equipment connected on the
cable in a loop-through arrangement must
present a high impedance to the line.)

6. Install Win MPC software on the laptop.
(See section 2.11.1 for details about using
Win MPC.)

7. Establish the required communications
parameters

8. Set (or verify) the iDome address (When
installed in the system, each item of
equipment must have a unique address).
Place this address on the iDome with a
removable piece of masking tape.

Figure 5. Model 8540B Test Stand (23-inch height).

( Model 8540A -not shown- provides 38-inch height)

6X-1026E

7

INSTALLATION AND OPERATION

3920 iDOME

Figure 6. Type CTC-29 Cable , Test/Setup, Wiring Diagram

(Also Available from Cohu as P/N 3010100-001)

[e-mail]

www.bb-elec.com

D9

FEMALE

B & B

CONVERTER

232

Model 422PP9TB

B&B Electronics

707 Dayton Road

PO Box 1040

Ottawa IL 61350

+12V

422

Figure 7. Typical RS-232 to RS-422 Converter

8

MAY BE REQUIRED

SEE TEXT

RD(B)

RD(A)

TD(A)

GND

TD(B)

Tx-

Tx+

TO iDome

Rx+

Rx-

This converter changes the RS-232 output of a PC to RS-422 for

communications with an iDome during eld setup and testing.

A local PC with Win MPC software typically is used in this ap­plication.

If this converer is plugged into the RS-232 output from an F/0 con­verter, 12 V dc operating power will likely have to be applied to the
12 V dc terminal lugs. These F/O to RS-232 converters typically

do not have sufcient current on the handshake lines to power the

232/422 converter. This application of the 232/422 converter would

typically occur as part of a xed installation inside an equipment

cabinet located near an iDome. The 232/422 converter would be
part of a type CA-295G cable.

6X-1026E

3920 iDOME

INSTALLATION AND OPERATION

Figure 8. Type CTC-33 Cable , 9200 Control Panel Connection,

Test/Setup, Wiring Diagram

9. Verify proper operation of all the various
functions controllable through the Win
MPC menus.

10. Release the iDome for eld installation

after it has been determined all functions
are working.

2.1.2.2. Field Installation Procedure - Use the

following outline to become familiar with the steps

required to install an iDome at its eld location:

1. Route the cable to the mounting location
of the iDome.

2. Route the cable through any mounting
arms or brackets.

3. Remove the safety strap from the iDome
quick disconnect fastener

6. Wrap the connector with self sealing

waterproong tape to ensure a long-term

trouble free installation.

7. Attach the dome half of the quick discon­nect to the half mounted to the arm or
other bracket. (If a particular orientation
is required be sure to mount it correctly
positioned.)

8. Attach the safety strap back to the other
half of the quick disconnect.

9. Connect the laptop to the iDome at the
junction box or equipment cabinet.

10. Verity (or set) the address and check all
operations.

11. Release the iDome for service.

4. Thread the nipple portion of the quick dis­connect into the mounting bracket or arm.

5. Route the cable down through this nipple
and attach it to the iDome connector

6X-1026E

2.2 EQUIPMENT SUPPLIED

Depending on the mounting conguration, several

variations of equipment can be supplied. Refer to
table 1 for a list of the basic differences between
models as they relate to mounting arrangements.

9

INSTALLATION AND OPERATION

3920 iDOME

Figure 9. Quick Disconnect Assembly

ARM

1.5 NPT

for dome

quick disconnect

adapter

WALL

Route system
cable through

hole in wall

into Arm

Use weather-tight gasket

between Arm and wall

10

Figure 10. Wall Mount Arm

6X-1026E

3920 iDOME

INSTALLATION AND OPERATION

2.0

2.0

UNLESS OTHERWISE NOTED ALL DIMENSIONS IN INCHES

17.75

1.75

1.5 NPT

1.75

8.0

0.75

4.50

0.75
O0.375

(TYP 4 PLACES)

O2.0

6.50

3.0

6.0

Figure 11. Arm Dimensions

2.2.1 PEND (Pendant Mount). See gure 9.

Pendant mounting is the most basic of the three
mounting arrangements. The top half of a quick-dis­connect assembly is threaded into a site supplied

1.5-inch NPT mount.

2.2.2 WALL (Wall Mount). See gure 10.

With a wall mount the iDome hangs from the end
of an arm which is attached to a wall. Figure 11
gives dimensions of the arm and adapter plate.
This wall must not only have four mounting bolts but
also a hole centered between these bolts through
which the cable must pass. A weather-tight gasket
should be used between the arm and wall.

2.2.3 POLE (Pole Mount). See gure 12.

Mounting to a pole is similar to mounting to a wall.
For mounting to a pole, the four mounting bolts are
provided by a bracket. This bracket is attached to
the pole by stainless steel straps.

Cable routing when using a pole mount depends
upon the situation encountered. It can either be

directed down behind the pole bracket or, if arrange­ments have been made for this, into the pole. Junc­tion boxes, drip loops, and weather proof integrity
of the connectors must be considered before start­ing the installation.

2.2.4 Connector Sealing

Even though the connector used with this camera
is designed to maintain a weather tight seal with its
mating system cable plug, it is recommended that
for additional protection against moisture in severe
conditions a sealing wrap be used on the connec­tors.

Coax Seal is the recommended product:

www.coaxseal.com

[e-mail]

United States: 1-800-241-8171

or International: 1-828-293-2222

6X-1026E

11

INSTALLATION AND OPERATION

3920 iDOME

This product is available from a variety of com­mercial supply houses, consumer stores, and in the
U.S. Government supply channels as GSA Sched­ule GS-07F-5739R

This product is a plastic tape-like material sepa­rated by a paper divider in its roll to prevent bonding
to itself before use. After this material is wrapped
around a connector, it forms a permanent weather­tight seal.

The cable and connectors should be clean and dry
before wrapping with Coax-Seal.

Use a full wrap of this tape on the cable at the be­ginning. Then continue with a diagonal half overlap
wrap up to the iDome housing. Then add a full wrap
at the end of the coverage.

Squeeze together the wrapping so that it forms a
tight bond both to itself and the mating connectors.

The web site for Coax-Seal has complete informa-

tion about this product.

2.3 EQUIPMENT REQUIRED BUT NOT
SUPPLIED

Each installation will have unique requirements for
necessary cables, equipment, and miscellaneous
accessory items. This following is a list of the most
basic items required for installing at the site location
of the iDome. Some of these items can be ordered
with the iDome and thus would be provided in those
cases.

• 5/16-inch grade 316 stainless steel mount­ing hardware

• Cable, multiconductor, iDome to equip­ment cabinet

ARM

POLE MOUNT

DOME

12

Figure 12. Typical Pole Mount

6X-1026E