COHU 3920HD series User manual

HeliosTM Products
INSTALLATION MANUAL Series
3920HD
3920SD
Dome Positioner System
www.CohuHD.com
[email protected]
July 15, 2014
Technical Manual 6X-1097B

2 6X-1097B
Table of Contents
About this document 3
Additional information and documents related to the Camera 3
Copyright/Intellectual property rights statement 3
FCC compliance 3
Support services 3
Returns 4
Safety instructions 5
1.0 Introduction 6
1.1 Product Description 6
1.2 Equipment Supplied 7
Optional Accessories 7
2.0 Installation 7
2.1 System Cable Requirements 9
Alarm I/O (Future) 10
2.2 18-pin MS Connector and Its Mating System Cable Connector 11
2.3 CohuHD Manufactured System Cables 12
3.0 Mounting Methods 15
3.1 Wall Mount 15
3.2 Pole Mount 16
3.3 Installation Procedures 17
4.0 Quick Check 20
4.1 IP Control and Viewing of Camera 20
4.2 Factory Default IPAddress and Settings. Assigning the new Camera IP Address 20
4.3 Using the Helios CohuONVIFDiscovery Software to Discover the Camera 21
4.4 Checkout Procedure 21
5.0 Maintenance 22
5.1 Housing Pressurization 22
5.1.1 Schrader Valve 22
5.1.2 Pressure Relief Valve 22
5.1.3 Pressurizing Procedure 23
6.0 Warranty 23

3
6X-1097B
About this document
This manual contains information on the installation and maintenance of the 3920HD/3920SD dome camera
systems. Please read this manual carefully prior to installation to prevent any accidental damage or misuse.
The manual is available from the CohuHD website at
• 3920HD at www.CohuHD.com/products/3920hd.html
• 3920SD at www.CohuHD.com/products/3920sd.html
The information in this manual is subject to change without notice. Please refer to the above website for
the latest information.
Additional information and documents related to the Camera
Forinformationonthecamerasystemoperationandconguration,pleaseseeOperationmanual6x-1090.
ThemanualisavailablefromtheCohuHDwebsitelistedaboveonspecicproductpagesunderthedown-
loads tab.
Copyright/Intellectual property rights statement
Copyright2014byCohuHDCostar,LLC.CohuHDCostar,LLChasintellectualpropertyrightstotechnology
embodied in the product described in this manual.
CohuHD™andHelios™aretrademarksofCohuHDCostar,LLC.
FCC compliance
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instruc-
tion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
interferenceathisownexpense.
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,and(2)thisdevicemustacceptanyinterferencere-
ceived,includinginterferencethatmaycauseundesiredoperation.Changesormodicationstothisdevice
can void the user’s warranty.
Support services
Please contact the Customer Service Department for technical assistance.

4 6X-1097B
Returns
This item was thoroughly tested and carefully packed at the factory prior to shipping. Upon acceptance by
thecarrier,thecarrierassumesresponsibilityfortheitem’ssafearrival.Shouldyoureceivetheitemina
damagedcondition,apparentorconcealed,aclaimfordamagemustbemadetothecarrier.
Ifavisualinspectionshowsdamageuponreceiptofthisshipment,itmustbenotedonthefreightbillor
expressreceiptandthenotationsignedbythecarrier’sagent.Failuretodothiscanresultinthecarrier
refusing to honor the claim.
Whenthedamageisnotapparentuntiltheunitisunpacked,aclaimforconcealeddamagemustbemade.
Make a mail or phone request to the carrier for inspection immediately upon discovery of the concealed
damage. Keep all cartons and packing materials.
Toreturntheproducttothefactoryforservice,pleasecontacttheCustomerServiceDepartmentforaRe-
turn Material Authorization (RMA) Number.
Prominently display the RMA number on the outside of the shipping container(s) and on paperwork con-
tained inside. Give a brief description of why the equipment is being returned and list the symptoms of any
problemsbeingexperiencedwiththeequipment.
Shipment
IMPORTANT
Ifthecameraneedstobeshipped,pleaseusetheoriginalpackagingmaterialwhichwasdesignedto
protecttheproductduringtransportation.Iftheoriginalpackagingislostordamaged,pleaseordera
replacement from Customer Service.

5
6X-1097B
• Installationshouldbedoneonlybyqualiedinstallersandconformtoalllocalcodes.
• It is the user’s responsibility to ensure that the mounting methods are safe and adequate for the
location.
• Use only stainless steel hardware to fasten the mount to an outdoor surface.
• Topreventdamagefromwaterleakagewheninstallingamountoutdoors,applysealantaroundthe
bolt holes between the mount and mounting surface.
• All servicing should be performed by qualied service personnel. Procedures in this
manual do not require entry into the housing of the camera positioning system. The unit contains
sensitive devices that can be damaged by static discharge. To reduce the risk of damage to the unit
by static discharge do not perform any servicing other than described in these instructions. If the
unitisdefective,pleasecontacttheCustomerServiceDepartmentfortechnicalassistance.
• It is the sole responsibility of the installer to provide proper installation in compliance with all local
codes and regulations.
Safety instructions
WARNING:
Do not remove camera from housing. There are no user serviceable parts inside.
CAUTION:
InordertoavoiddeteriorationofthecolorlteroftheCCDandpotentialdiscolorationoftheimage
avoid pointing the Camera directly toward the sun or other bright source.
WARNING:
Power supplies used with these Cameras operate from 115 V AC or 24 V AC. These voltages are
dangerous.Useextremecareworkingwithequipmentconnectedtoeither115VACor24VAC.

6 6X-1097B
1.0 Introduction
The CohuHD 3920HD (HighDenition)and3920SD (StandardDenition)Cam-
eraSystemsareIPcamerasystemsinenvironmentallysealedandpressurized
dome enclosures. The camera system provides IP video streams with H.264
and MJPEG compression plus an analog composite video output. The camera
includes variable a hi-speed pan and tilt drive with 360°continuous pan and
+5° to -90° tilt movements. The enclosures are pressurized to 3 - 5 psi and
meet International Protection rating IP67. Control interfaces are via Ethernet
network connection or RS-422 serial communications.
The 3920HD and 3920SD camera systems comply with NEMATS 2 standards for
shockandvibrationspecications.
For more information on specications and datasheets, please refer to the
CohuHD website.
1.1 Product Description
18 Pin Connector
1.5 NPT Nipple
Safety Strap
Sun Shield
Ventilation Hole
(6)
Pressure Relief Valve (5 psi)
(Protected by Plastic Tubing)
Quick Disconnect
Bottom
Schrader Valve
(Cap Installed)
Lock Down Bolts (2)
Quick Disconnect
Top
NOTE: See section 3.3 for instructions on the Quick Disconnect disassembling/reassembling.
Camera Top View
NPT - National Pipe Thread

7
6X-1097B
1.2 Equipment Supplied
The camera system is supplied with:
• An 18-pin MS type metal connector. The supplied connector is to be wired to the system intercon-
nection cable.
For more information on the connector see chapter 2.2 of this manual.
Optional Accessories
The following optional mounts and cables are recommended by CohuHD for camera system installation
and can be purchased with the Camera:
Mounts:
• Wall,CohuHDp/n7411420-001.
• Pole,CohuHDp/n7411421-001.Thepolemountisdesignedfor
use with the wall mount (see above).
For more information on each type of mount see chapter 3 of this manual.
Cables:
• CA252 series with 120V AC MS connector.
• CA255 series with 24V AC MS connector.
For more information on cables see chapter 2.3 of this manual.
2.0 Installation
This chapter covers the general installation and cable requirements of the 3920HD and3920SD series.
Before starting installation:
• Choose the installation mounting method. See chapter 3 of this manual.
• Verify that the cables can be routed to the location of the mounting assembly.
See section 3.0 for details on the installation procedure for recommended mounts.
Figures 1 and 2 show interconnection diagrams for the 3920HD/3920SD series Cameras:
• Figure 1 shows a typical set up interconnection diagram for the Camera using IP output.
• Figure 2 shows a setup of the Camera using analog and IP output.
These diagrams give an idea of a typical installation. Each installation site will have its own unique require-
ments.
Wall Mount
Pole Mount

8 6X-1097B
Network
Switch
Power
Router/Switch
CAT5e
Cable Router/Switch
WAN
LAN
System Cable
Default IPAddress
192.168.2.150
Properly secure the camera system
before the power is applied.
Cable Shield(s)
Earth
Ground
Figure 1. Interconnection Diagram, IP Output
Network
Switch
Power
Router/Switch
CAT5e
Cable
Analog
Monitor
RS-232/422 Converter
Direct plug-in
to computer
serial port
422 232
Coax Cable Serial Cable
Router/Switch
WAN
LAN
System Cable
Default IPAddress
192.168.2.150
Properly secure the camera system
before the power is applied.
Cable Shield(s)
Earth
Ground
Figure 2. Interconnection Diagram, Analog and IP Output

9
6X-1097B
2.1 System Cable Requirements
To build the Camera system cable CohuHD recommends:
• ForEthernet:CAT5eorbettercableisrecommended.Fordistancesuptoamaximumof100me-
ters(328feet),useCAT5ecablewithfourpairsofcopperwire,24AWG.
• ForAnalogVideo:Thecoaxforanalogvideoshouldberatedat75ohms,andshouldnotexceeda
maximumattenuationof6dBat10MHzforthelengthofcoaxrequired.Forexample,Belden9221
miniaturecoaxisasmall,extremelyexible,75ohmcoaxthathasanattenuationof2.2dBper100
feet.Itshouldneverbeusedfordistanceslongerthan270feet((6dB/2.2dB)x100ft.=272feet).
AnexcellentmidrangecoaxwouldbetheBelden8241F(RG-59/Utypewith100%coppercore),
withanattenuationof0.9dBper100feet,oramaximumrecommendeddistanceof650feet.For
longercableruns,theBelden8238(RG-11/Utype)hasanattenuationof0.7dBper100feet,which
wouldallowforamaximumcablelengthofover850feet.Therearetriaxialcablesavailablethat
canaccommodateevenlongercabledistances,butavideocableequalizerorberopticsmay
prove to be more cost effective as a long distance solution.
• ForData:Shielded,twotwistedpairdatacableisrecommended.Forlowerbaudrates(9,600or
less),theBelden8723shieldedcableisusuallysuitablefordistancesupto750feet.Forlonger
cableruns,and/orfasterbaudrates,acablewithalowercapacitanceperfootshouldbeselected.
TheBelden8162(12.5pf/ft.capacitance),wouldbesuitablefordistanceswellinexcessof1,000
feet at baud rates up to 115KB.
• ForPower:Threewires,insulatedfor300Vminimum,18AWGcordforpower.Usefordistances
uptomaximum750feet(230m)for115VACcables.Usefordistancesuptoamaximumof80
feet (29 m) for 24 V AC cables.
WhenwiringtotheEthernetpins,besuretoconsiderwhethertheyshouldbewiredfortheNICinaPCor
forsystemconnectionstoahub,switch,router,orsimilardevice.Seetables1,2.
Ethernet
Function Camera Connector Ethernet Pins Corresponding RJ-45 Ethernet Pins
Tx+ D 1
Tx- E 2
Rx+ F 3
Rx- H 6
ThisEthernetwiringisintendedtoconnectdirectlytoahub,switch,
or router. For connection directly to a PC it will be necessary to use
either a crossover cable or a crossover adapter. See table 2.
Table 1. Ethernet Cable Wiring to a Hub, Switch, or Router (Straight Wiring)
Ethernet
Function Camera Connector Ethernet Pins Corresponding RJ-45 Ethernet Pins
Tx+ D 3
Tx- E 6
Rx+ F 1
Rx- H 2
This Ethernet wiring is intended to connect a Camera to the NIC card
in a PC.
Table 2. Ethernet Cable Wiring to a PC (Crossover Wiring)

10 6X-1097B
In the 3920HD/3920SD series Cameras the RS-422 interface is used for sending and receiving serial data.
Therefore,aRS-232/422convertershouldbeusedbetweentheCameraandacomputer.Figure3shows
a typical RS-232/422 converter from B&B that could be used with 3920HD/3920SD. Table 3 shows cable
wiring between the Camera and a converter.
D9
FEMALE
+12V
GND
RD(B) RD(A)
TD(A)
TD(B)
Tx+ Rx+
Tx- Rx-
232
422
B&B
converter
422PP9TB
Figure 3. Typical RS- 232/422 Converter
Table 3. RS-422 Cable Wiring to B&B Converter
Camera Side Converter Side
RS-422
Camera Camera Connector Pins RS-422 Device
Rx+ M TD(B)
Rx- N TD(A)
Tx+ S RD(B)
Tx- R RD(A)
Alarm I/O (Future)
The 3920HD and 3920SDcamerasystemssupportthreealarmI/OchannelsidentiedasAlarm1I/O,Alarm2
I/O,andAlarm3I/OintheSystemCablediagram.Thesethreealarmchannelsaresoftwarecongurableas
inputsoroutputsandareactive-lowreferencedtotheAlarm/DataGndpin.Whenconguredasaninput,
connectingtheAlarmI/OpintotheAlarm/DataGndpinthroughanexternalswitchorrelayactivatesthe
alarminput.Whenconguredasanoutput,theAlarmI/OpinprovidesalowresistancecircuittotheAlarm/
DataGndpinwhenactivated.TheAlarmI/OoutputsupportsDCloadsonlywithamaximumvoltageof
50VDCandamaximumcurrentof0.5A.