Comelit AHPTZ10IRC User Manual

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DOME IR PTZ 4 IN 1

ART. AHPTZ10IRC

Please read this manual thoroughly before use and keep it for future reference

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WARNINGS AND CAUTIONS

WARNING

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE. DO NOT INSERT ANY METALLIC OBJECTS THROUGH VENTILATION GRILLS OR OPENINGS ON THE EQUIPMENT.

CAUTION

EXPLANATION OF GRAPHICAL SYMBOLS

The lighting flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user the presence of non-insulated “dangerous voltage” within the

product’s enclosure that maybe of sufficient magnitude to constitute a risk of

electric shock to different persons.

The exclamation point within an equilateral triangle, is intended to alert the user the presence of important operating and maintenance (servicing) instructions in the literature accompanying this product

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PRECAUTIONS:

1. Persons without technical qualifications should not attempt to operate this dome device before reading this manual thoroughly.

2. Remove any power to the dome before attempting any operations or adjustments inside the

dome cover to avoid potential damage to the mechanism.

3. Inside the dome cover there are precision optical and electrical devices. Heavy pressure, shock and other sudden adjustments or operations should be avoided. Otherwise, you may cause irreparable damage to the product.

4. Please DO NOT remove or disassemble any internal parts of the video camera to avoid normal operation and possibly void the warranty. There are no serviceable parts inside the

camera.

5. All electrical connections to the dome should be made in strict accordance with the attached

labels and wiring instructions in this manual. Failure to do so may damage the dome beyond

repair and void the warranty.

6. For outdoor installation especially in high places or poles, it is highly recommended that the proper lightning arrestors and surge suppressors are installed before the dome is entered into

service.

7. Please do not use the product under circumstances where the limits exceed the maximum specified temperature, humidity or power supply specifications.

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IMPORTANT SAFEGUARDS

1. Read these instructions before attempting installation or operation of dome device

2. Keep these instructions for future reference

3. Heed all warnings and adhere to electrical specifications, follow all instructions

4. Clean only with non-abrasive dry cotton cloth, lint free and approved acrylic cleaners

5. Should the lens of the camera become dirty, use special lens cleaning cloth and solution to properly clean it.

6. Do not block any ventilation openings. Install in accordance with manufacturer’s

instructions

7. Use only attachments or accessories specified by the manufacturer

8. Verify that the surface you are planning to use for attaching the dome can adequately support the weight of the device and mounting hardware

9. Protect this device against lighting storms with proper power supplies

10. Refer all servicing to qualified service personnel. Servicing is required when the device

has been damaged in any way, when liquid traces are present, or the presence of loose objects is evident or if the device does not function properly, or has received sever impact or has been dropped accidentally.

11. Do not use this product under circumstances exceeding specified temperature and

humidity ratings.

12. Avoid pointing the camera directly to the sun or other extremely bright objects for

prolonged period of time avoiding the risk of permanent damages to the imaging sensor.

13. The attached instructions are for use by qualified personnel only. To reduce the risks of

electric shock do not perform any servicing other than contained in the operating instructions unless you are qualified to do so.

14. During usage, user should abide by all electrical safety standards and adhere to

electrical specifications for the operation of the dome. The control cable for RS485 communications as well as the video signal cables should be isolated from high voltage equipment and or high voltage cables.

15. Use supplied power supply transformer only.

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INDEX

1 Product Introduction .......................................................................................................... 1

1.1 Package Contents .......................................................................................................... 1

1.2 Specification ................................................................................................................... 1

1.3 Function Description ...................................................................................................... 2

2.1 Product Dimension......................................................................................................... 5

2.2 Bracket Dimensions ....................................................................................................... 5

2.2.1 Wall Mounted Bracket ................................................................................... 5

2.3 Installation ...................................................................................................................... 6

3. Function Instruction.......................................................................................................... 7

3.1 Power Up Action ............................................................................................................ 7

3.2 Basic Function ............................................................................................................... 7

3.3 Special Function ............................................................................................................ 8

3.4 Screen Character Operation .......................................................................................... 8

4 OSD Menu ................................ ................................ ........................................................ 9

4.1 Menu Index .................................................................................................................... 9

4.2 System Information ...................................................................................................... 10

4.3 Dome ........................................................................................................................... 11

4.3.1 Communication ........................................................................................... 11

4.3.2 IR Display ................................................................................................... 12

4.3.3 Guard Tours ................................................................................................ 13

4.3.4 A-B Scan ..................................................................................................... 14

4.3.5 Pan Scan .................................................................................................... 15

4.3.6 Park Action ................................................................................................. 15

4.3.7 Privacy Zone ............................................................................................... 16

4.4 Camera ........................................................................................................................ 18

4.5 Language ..................................................................................................................... 19

4.6 Display ......................................................................................................................... 19

4.7 Reset ........................................................................................................................... 20

5. Auto Temperature Control .............................................................................................. 21

Appendix I Anti-lightning, Anti-surge .................................................................................. 21

Appendix II Clean Transparent Cover ................................................................................ 22

Appendix III Common Knowledge on RS-485 Bus ............................................................ 22

1. Basic Feature of RS-485bus .......................................................................................... 22

2. Mode of Connection and Terminal Resistance ............................................................... 22

Appendix IV Exception Handling ........................................................................................ 23

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Copyright Statement .......................................................................................................... 24

* Indicates the functions with default protocol, it might not function by using other protocols

※

Indicates the optional functions, only with certain models

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1 Product Introduction

1.1 Package Contents

IR Speed dome 1pc Wall mount bracket 1pc Power supply 1pc Screws kits 1pc User manual 1pc

1.2 Specification

Horizontal Rotation Speed

200°/sec.

Tilt Rotation Speed

80°/sec.

Horizontal Rotation Range

360°

Tilt Rotation Range

93°

Auto Flip

Horizontal 180°, Vertical 93°

Auto control IR LED

PWM

A-B Scan

User programmable

A-B Scan Speed

01-64 speed setting available

360° Scan Speed

01-64 speed setting available

Dwell Preset

01-60 sec. interval

Preset Points

220

Go to Preset Speed

200°/sec.

Guard Tours

3 groups

Guard Points

Max.16 points, dwell time user selectable

Home Pos Time

1-60 mins available

PWR on Action

Restore as power up/Pan scan/A-B scan/Park action/Guard

tour group 1-3/No action

Communication Protocol

Pelco-D,Pelco-P

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Communication

RS485

Baud Rate

1200/2400/4800/9600bps

3D Location

support

Video output

AHD/TVI/CVI/CVBS

Operating Temperature

Indoor: 0°~ +40° Outdoor: -40°~ +60°

Operating humidity

≤95% Non Condensing

Heater & Blower

Auto temperature control

Power

12 VDC ≤3A

Lightning protection

transient voltage 6000V

IR Illumination Distance

50M

Power Consumption

≤ 15W

1.3 Function Description



Super Communication

Address, baud rate and protocol could be changed both from dip-switch or from software.



English OSD menu

The language display on screen menu, the available language is English.



IR Output Power Consumption

IR output power consumption can be set through the OSD after IR is turned on.



IR Standby Power Consumption

After IR is turned on, if there is no operation and this period is more than the IR standby time set, the dome will be on the standby mode. User can set the max IR standby power consumption through OSD.



IR Detection Time

Time duration switching from Color to B/W or B/W to Color. It can be set through OSD



IR Standby Time

After IR is turned on. The duration from no operation to the standby mode is called IR standby time , it is settable through OSD.



Focus

The auto focus enables the camera to focus automatically to maintain clear image. User

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can use manual focus to in special condition. Under the following conditions camera will not auto focus on the camera target: (1) Target is not the center of the screen; (2) Attempting to view images that are far and near at the same time; (3) Target is strongly lighted object, such as neon lamp, etc. (4) Targets are behind the glass covered with water droplets or dust; (5) Targets are moving quickly; (6) Monotonous large area targets, such as wall; (7) Targets are too dark or faint.



BLC

If a bright backlight is present, the target in the picture may appear dark or as a silhouette, BLC enhance the target in the center of the picture, the dome uses the center of the pictures to adjust the iris. if there is a bright light source outside this area, it will wash out to white, the camera will adjust the iris so that the target in the sensitive area will properly exposed.



Iris Control

Factory default is automatic camera aperture, in mode of which camera senses changes in ambient light through moving and adjust automatically lens aperture to make the brightness of output image stable.

Users can through pressing OPEN or CLOSE iris-adjusting keys, manually adjust the aperture size to get the required picture brightness.

By controlling the keyboard up, down, left, right or zoom to resume auto iris (auto iris is recommended).



Auto-recognize to Protocol and Module

The dome can auto-recognize to the corresponding protocol and module during self-inspection.

Protocol: PELCO_P, PELCO_D etc.



3D Allocation

With this function, users can move the image of some area to the center of screen according to specified level and vertical coordinates and auto control to zoom according to zoom parameter set.



Day/Night Switch

With auto day/night switch function, when the illumination is low the picture will auto switch from day to night mode and when the illumination is high enough the picture will auto switch from night to day mode



Ratio Speed

Intelligent pan and tilt speed is variable depend on the zoom factor. When zooming in, the speed will become slower and when zooming out, the speed will become quicker.



A-B Scan

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Dome circularly scan close-up real-time scene according to A-B points at setting speed in both horizontal and vertical directions.



Pan Scan

Dome 360°clockwise continuous scan the display scene at setting speed in horizontal direction under the condition that pitch angle remains the same.



Preset

After the dome camera keeps arbitrary PTZ location, it will automatically move to the defined position when preset is called.



Guard Tour Scan

Dome patrol scans according to certain edited preset order.



Power Off Memory

This feature allows the dome to resume its previous preset or status after power is restored. By default setting, the dome support power up memory, which improves the reliability and avoids repeated settings of the parameter.



Park Action

If users don’t operate the dome in set time, it will automatically run preset specific mode

(pan scan, A-B scan, park action, cruise, preserve action etc.).



Zero Alignment

There is a point specified as zero point. When the dome is working, the preset point is not accurate because of something caused by the operator. User can make the dome automatically enable the zero alignment by operational order.



Auto Flip

In the manual tracking mode, when a target goes directly beneath the dome, the dome will automatically rotate 180 degree in horizontal direction to maintain continuity tracking. When the dome flips, the camera starts moving upward as long as you hold the joystick in the down position.

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2.1 Product Dimension

2.2 Bracket Dimensions

2.2.1 Wall/Ceiling Mount Bracket

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2.3 Installation

2.4 Connection

Connection of RS485 Before connecting, please turn off the power and read carefully the instructions of all

connected devices.

Fig 24

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3. Function Instruction

3.1 Power Up Action

Power Up Self Testing Pan, Tilt, Camera Self-test Completion



Pan action: Pan rotate in certain direction and stop in zero coordinate.



Tilt action: Tilt rotate in certain direction and stop in zero coordinate.



Lens action: Lens zooms out to the widest angle.



From running the action above to power up mode completion, power up

self-testing finishes.

3.2 Basic Function



Dome Running

Control joystick or up, down, left and right key in the keyboard.



Zoom Press ZOOM- button to make the lens farther and minify the scene. Press ZOOM+ button to make the lens closer and magnify the scene.



Focus After FOCUS- button is pressed, the object in vicinity will become clearer while the object

far away will become ambiguous. After FOCUS+ button is pressed, the object far away will become clearer while the object in

vicinity will be ambiguous.



Iris Press IRIS- to gradually shrink the iris and decrease the image brightness. Press IRIS+ to enlarge the iris and increase the image brightness.



Preset Point

Setting preset press button “preset”+”number”+”enter”. Calling preset press button “call”+”number”+”enter”. Deleting preset press button “clear”+”number”+”enter”.

<SYSTEM> MFG PROTOCOL ATUO DOME ID COMM VERSION DETECTING

<SYSTEM> MFG PROTCOL ATUO DOME ID COMM VERSION PAN: XXX TILT: XXX

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Remark:

Some preset points are used tentatively for special functions.

3.3 Special Function

The follow presets are predefined as special function, please shot+ preset No+ enter to enable those functions:

Remark

: If use some other equipments to control IR dome, some special functions probably

can’t be effective because of the limited of protocol.

3.4 Screen Character Operation

Call preset 95 to enter the OSD, call preset 94 to exit the OSD.



Up or Down : Move the option of the OSD, change the value on the OSD.



Right ：Enter the option, select the item or confirm.



Left：Return to main menu or cancel



Angle Display: XXX.XX(pan)/XXX.XX(tilt)



IR Display: Display on the lower right corner of the screen.

“ ”means the dome is on IR mode “ ”means the IR is turned on “ ”The IR output power

COMM. Display: Display the dome ID and baud rate on the top left corner of the screen.

Remark:

1. Items with“< >” mean they have sub menu.

PRESET

FUNCTION

PRESET

FUNCTION

Pan scan180 º

BLC off

Reset

Freeze on

Digital zoom on

Freeze off

Digital zoom off

A-B scan

Auto day/night

OSD off

Switch to night

OSD on

Switch to day

Guard tour 3

Force on far light

Guard tour 2

Force on near light

Guard tour 1

BLC on

Pan scan

Twice 137

Switch to AHD

Twice 138

Switch to TVI

Twice 139

Switch to CVI

Twice 140

Switch to CVBS

Twice 115

Switch to NTSC

Twice 116

Switch to PAL

Twice 137

Switch to AHD

Twice 138

Switch to TVI

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2. “→”means the cursor selecting some option.

3. “

※

” means editing the content of some option selected.

4. When entering the setting page in menu, it is useless to call preset 94 to exit

the menu directly. Such as the submenu <SET> in menu <GUARD TOUR SET>.

4 OSD Menu

4.1 Menu Index

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Fig 4.1.1 Get into the Menu Screen

4.2 System Information

Fig 4.2.1 MFG: max 15 characters display on the screen. PROTOCOL: display the protocol of the dome DOME ID: display the dome address. COMM: format  Baud rate. Check bit. Data bit. Start bit

VERSION: Version will update along with the product upgrading

Remark:

protocol, ID and COMM all can be set in menu <COMM>

<MAIN MENU> <SYSTEM> <DOME> <CAMERA> <LANGUAGE> <DISPLAY> <RESET> EXIT

MFG PROTOCOL AUTO DOME ID 001 COMM 2400.N.1 VERSION EXIT

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4.3 Dome

Fig 4.3.1

4.3.1 Communication

Fig 4.3.1.1 DEVICE ID It is only and used to distinct from the ID of other domes.

<DOME>

<COMM> <IR DISPLAY> <GUARD TOURS> <A-B SCAN> <PAN SCAN> <PARK ACTION> <PRIVACY ZONE> <ADVANCED> EXIT

<COMM>

DEVICE ID CHECK ID 0000 TARGET ID 001 SOFT PROTOCOL AUTO BAUD RATE 2400BPS <COMM RESET> SAVE EXIT

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CHECK ID Distinguishing several domes with same ID and altering target ID, soft protocol and baud

rate need to enter check ID in line with the device ID, otherwise altering can’t be completed. TARGET ID Target ID is available from 001 to 250. SOFT PROTOCOL Soft protocol is auto, Pelco-D and Pelco-P available BAUD RATE

1200BPS、2400BPS、4800BPS、9600BPS available SAVE

Please save the change of communication. After saving, the dome will reboot.

Remark:

The out-of-factory default of dome camera is hardware DIP set. After the COMM.

is changed in menu, it can’t be effective until saved. If needing to get hardware DIP set

again, run the COMM RESET.

4.3.2 IR Display

Fig 4.3.2.1 WORKING MODE Working mode has auto, black/white, color selectable. Default is auto. TESTING TIME On IR auto working mode and the programmed time, the IR will execute the programmed

action, eg. Switch from day to night or from night to day. The detection time is from 2s to 15s selectable.

WORKING MODE AUTO TESTING TIME 08S OUTPUT POWER 100% STANDBY POWER 80% STANDBY TIME 20S ILLUMINATION ON 03 AMBIENT LIGHT IR SWITCH ZOOM 05 EXIT

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OUTPUT POWER IR output consumption has 40%、60%、80%、100% selectable.

STANDBY POWER IR stand by power has 20%、40%、60%、80% selectable. IR standby power is much less

than IR output power. STANDBY TIME IR standby time is 15-30s selectable. Default is 20s. ILLUMINATION ON Illumination on is 1 to15 grade selectable and default is 3. On the auto IR working mode, if

the illumination on level is less than the ambient light, the picture will change to color, the IR illumination will turn off automatically. If the illumination on level is more than the ambient light, the picture will change to black , the IR illumination will turn on automatically.

AMBIENT LIGHT Ambient light is a system data. User can not change it manually. It changes according to the

environment all the time. The data will refresh every time when user enter the OSD. It is from 0 to 50 grade.

IR SWITCH ZOOM IR switch zoom is 1-10 grade selectable and default is 5 zoom. User can set it according to

the Environment.

4.3.3 Guard Tours

Fig 4.3.3.1 Fig 4.3.3.2

GUARD TOUR 01 <SETTING> INIT CALL DELETE

ID POINT TIME(S) SPEED

1 01 06 64

2 02 06 64 3 03 06 64 4 04 06 64 5 05 06 64 6 06 06 64 7 07 06 64 8 08 06 64

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GUARD TOUR Total 3 guard tours selectable: 01, 02, 03. SETTING Each guard tour includes max 16 presets. The number of the preset is from 0-64. 0 is not

valid, dwell time is 1 to 60s selectable. Speed is 1 to 64 grade selectable. INIT After init., preset point, dwell time, speed will resume to default setting. CALL Call the new setting. DELETE Delete the guard tour set. After deleting, the present preset points all display as 0. While the

exact preset point information doesn’t be deleted. So it is convenient for user to select the

preset point needing to be guarded tour.

4.3.4 A-B Scan

Fig. 4.3.4.1 PRESET A On A-B scan, A point can be preset from 0 to 64. PRESET B On A-B scan, B point can be preset from 0 to 64. SCAN SPEED A-B scan speed is 1 to 64 grade selectable. DWELL TIME Dwell time between A to B is 2s to 60s selectable. CALL Call the new setting.

<A-B SCAN>

PRESET A 01 PRESET B 02 SCAN SPEED 10 DWELL TIME 06S CALL DELETE EXIT

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DELETE After deleted, the preset points display as 0. While the exact preset point information

doesn’t be deleted. So it is convenient for user to select the preset point needing to be scanned. Speed and dwell time will reset as default setting.

4.3.5 Pan Scan

Fig. 4.3.5.1 PAN SCAN SPEED Pan scan speed is 1 to 64 grade selectable. INIT Reset the scan speed and tilt degree as default setting. CALL Call the new setting.

4.3.6 Park Action

Fig. 4.3.6.1 Fig. 4.3.6.2 PARK MODE Park mode includes OFF, Park action, A-B scan, Pan scan, guard tour01, guard tour02,

guard tour03 and Preserve action.

PAN SCAN SPEED 10 INIT CALL EXIT

PARK MODE OFF PARK TIME 01M <SETTING> CALL DELETE EXIT

PRESET 1: SAVE PRESET 2: BACK

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When park mode is OFF status, the dome doesn’t run park mode. When park mode is PRESERVE ACTION status, it record previous action order(A-B scan,

Pan scan, Guard tour 01, Guard tour 02, Guard tour 03). Example: Running A-B scan at first, when the action stops unexpectedly, it enters the park

mode to continue to run A-B scan. PARK TIME Park time is 01~60 mins selectable. SETTING After entering the OSD menu, as 7.4.8.2, move to the desired position and save the

settings. CALL Call the new setting. DELETE Delete the settings.

4.3.7 Privacy Zone ( If camera support)

Fig. 4.3.7.1 Fig. 4.3.7.2 Fig. 4.3.7.3 MASK NO. Mask No. depends on the number of the module supported. The selective range of Sony is

from 1 to 24. MASK Mask has on and off selectable. SETTING Set the specific parameter of present mask NO. and call preset 1 to save the settings.

Direction operation—Modify the coordinate of dome Zoom operation—Modify the size of scenery Iris operation—Modify the size of privacy zone

MASK NO. 01 MASK OFF <SETTING>

EXIT

PRESET 1: SAVE

PRIVACY PROPOSED TO OPEN

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Remark

: The mask size is better more than double the target size. If needing to modify

mask NO.02, set it again. If needing to stop it, set mask to OFF status. If the module doesn’t support privacy mask, the screen will display the interface as Fig.

4.3.7.3.

4.3.8 Advanced

Fig. 4.3.9.1 PWR ON ACTION Power on action can be set as Memory, A-B scan, Pan scan, Park action, Guard tour 01,

Guard tour 02, Guard tour 03 and No action. RATIO SPEED Ratio speed can be set as ON or OFF status. AUTO FLIP Auto flip can be set as ON or OFF status. OTHERS Set other options.

PWR ON ACTION MEMORY RATIO SPEED ON

AUTO FLIP ON <OTHERS> EXIT

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4.4 Camera

Fig. 4.4.1

CAM Display the information of module supported by this dome. ZOOM SPEED Zoom speed is quick and slow selectable. DIGITAL ZOOM Digital zoom is on/off selectable. FOCUS Focus is auto and manual selectable IRIS Iris is auto and manual selectable BLC BLC is ON and OFF selectable FREEZE Video freeze is ON and OFF selectable

Remark

: Only if those functions are available on the present module, the user can use it.

CAM AUTO ZOOM SPEED QUICK DIGITAL ZOOM OFF FOCUS AUTO IRIS AUTO BLC OFF FREEZE OFF EXIT

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4.5 Language

Fig. 4.5.1 LANGUAGE Language can be set English. Default settings are English.

4.6 Display

Fig. 4.6.1 SYSTEM Video system includes NTSC and PAL. N means NTSC and P means PAL. P AND T On screen, it displays the pan and tilt degree, user can enable or disable it. ACTION On the screen, it displays the current action, such as A-B scan, Call preset, Save preset,

Call park action, Pan scan etc. User can enable or disable it IR IR can be set as ON or OFF. “ ”means the dome is on IR mode

“ ”means the IR is turned on “ ”The IR output power

LANGUAGE ENGLISH EXIT

SYSTEM PAL P AND T ON ACTION ON IR ON DOME ID ON COMM ON

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DOME ID At the top left corner of screen, it displays the dome ID. User can enable or disable it. COMM At the top left corner of screen, it displays the dome communication information. User can

enable or disable it.

4.7 Reset

<RESET>

<DOME RESTART> <SYS DATA> <CAM DATA> <PRESET> EXIT

CONFIRM: Save data, dome restart

EXIT

CONFIRM：Factory default

EXIT

CONFIRM：Factory default

EXIT

CONFIRM： DEL ALL PRESETS

CONFIRM 1： DEL 01 TO 16

CONFIRM 2： DEL 17 TO 32

CONFIRM 3： DEL 33 TO 48

CONFIRM 4： DEL 49 TO 64 EXIT

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CONFIRM: Delete the presets information saved by the dome.

5. Auto Temperature Control

This product has built-in fan and heater, which accordingly cool or heat through temperature sensitive circuit inside the dome.

Appendix I Anti-lightning, Anti-surge

This product is extremely air discharge and lightning protection with TVS tube technology, which can effectively prevent the transient lightning below voltage 3000V, surge and damages caused by other types of pulse signals.

However, necessary protective measures should be made in the premise of ensuring electrical safety for outdoor installation according to the actual situation:

·Signal transmission line must be at least 50 meters far away from the high-voltage

equipment or high voltage cable.

· Try to choose outdoor wiring laid down along the roofline.

· Way of sealed steel pipe buried wiring is used in the area which opened, and steel

pipe units grounded in one point. Overhead wiring is absolutely prohibited.

· In the strong thunderstorms area or areas with high induced voltage (such as high voltage substations), measure of installation of additional high power lightning protection equipment and lightning rod must be taken.

· Lightning protection and grounding of outdoor devices and lines must take the lightning-protection requirements of buildings into consideration, and comply with the related national standards and industry standards.

· System must be equipotential grounding. Grounding device must meet dual requirements of anti-interference and electrical safety, and should not be shorted or mixed with the adjacent lines in the strong power grid. When system is independently grounded, grounding impedance should be less than 4Ω, and cross-sectional area of grounding conductor must be not less than 25m2.

Fig 25

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Appendix II Clean Transparent Cover

In order to assure a clear image of dome, the under cover of dome should be cleaned regularly.

● Be careful when cleaning and hold the outer ring of under cover by hands to avoid directly

touching with it. Because the acid sweat of finger membrane may corrode the surface coating of under cover. Hard tool scratching the under cover may lead to blurring the images of dome so that affecting image quality.

● Please uses a soft enough dry cloth or other alternatives to wipe internal and external surface.

● If dirt is serious, user can use a mild detergent. Any senior furniture cleaning products can be used to clean the under cover.

Appendix III Common Knowledge on RS-485 Bus

1. Basic Feature of RS-485bus

According to industry bus standard of RS-485, RS-485 bus is half-duplex communication bus with the characteristic impedance of 120Ω, whose maximum load capacity is 32 payloads (including the master device and the controlled device).

2. Mode of Connection and Terminal Resistance

2.1 Industry standard of RS485 bus requires that connection mode of daisy chain should be used between the devices with 120Ω terminal resistances connected at the both ends.

As shown in fig. 26 and fig. 27 is simplified connection, but the distance of part "D" shall not beyond 7 meters.

Fig 26 Fig 27

2.2 120Ω terminal resistance is connected as shown in fig 27. 120Ω terminal resistance is available in the circuit board as following: when needing to connect 120Ω resistance, toggle the 8th bit of DIP switch SW2 to

"ON" . This way the 120Ω resistance is connected to the circuit.

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Appendix IV Exception Handling

Issue

Possible Reason

Solution

After power is applied, there is no motion (self-test) and no video image.

Cable harness is improperly connected

Verify that the orientation of the connector input

Input power voltage is too low

Verify the voltage of the input power

Power supply is not work

Change a new power supply

Self-test is normal, but cannot control dome Wrong communication settings

Set the correct protocol, baud rate and address of dome device

Improper connection of control cable (polarity)

Verify the polarity of the RS485 connection as per the instruction manual

Noise after self-testing Mechanical obstruction

Verify and correct it

Camera module is not

Correct

Low power

Change the correct power supply

Image is not stable Low power

Check the power supply or make sure the power input is DC 12V

Video cable is improperly contact

Verify the contact of the video cable

Image is blurring

Camera is on manual focus

Change to auto focus The lens is dusted

Clean the lens

Control to the dome is not smooth

Power is too low

Change the DC 12V Power supply

Communication distance is too long

Make sure the distance is in the allowed range

RS485 cable is not properly contact

Make the RS485 is properly contact

Too many domes connected

Make sure the connected dome is in the allowed quantity

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This copyright merely belongs to the manufacturer. Without permission, please don’t plagiarize or copy the contents of this book in any form or by any means.

The company follows the policy of continuous development. Therefore, the company reserves the right to modify or improve the products described in this manual without notice.

The content of manual is offered according to the "current state". Unless applicable law otherwise specified, the company does not make any kind of clear or tacit reassurance about the accuracy, reliability and contents of this manual. The company reserves the right to revise or recoup this manual at any time without notice.