8 APPENDIX Ⅱ ABOUT RS485 BUS ................................................................. 30
8.1 RS485 Bus Main Feature ....................................................................................................... 30
8.2 RS485 Bus Transmission Distance ...................................................................................... 30
8.3 The Problem in Practical Use ............................................................................................... 30
8.4 RS485 Bus FAQ ...................................................................................................................... 31
9 APPENDIX Ⅲ THE RELATIONSHIP BETWEEN THE 24V AC CABLE
DIAMETER AND THE TRANSMISSION DISTANCE .............................................. 32
10 APPENDIX Ⅳ THE RELATIONSHIP BETWEEN THE 12V DC CABLE
DIAMETER AND THE TRANSMISSION DISTANCE .............................................. 34
11 APPENDIX IV WIRE GAUGE REFERENCE SHEET ....................................... 36
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Welcome
Thank you for purchasing our speed dome!
Please read the following safeguards and warnings carefully before you install or use the
product!
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Important Safeguards and Warnings
Safety Measures
1. Qualified Engineer Needed
The installation engineer or maintenance engineer shall have corresponding CCTV system
installation certificate or maintenance qualification certificate.
The installation engineer or maintenance engineer shall have qualification certificate for work
at height.
The installation engineer or maintenance engineer shall have the basic knowledge and
operation technique for low-voltage cable layout and low-voltage electronic cable connection.
Please read the installation manual carefully and keep it well for future reference,
We are not liable for any problems caused by unauthorized modifications or attempted repair.
2. Lifting Appliance Requirement
Please select the proper speed dome installation mode and use the lifting appliances at the
safety environment.
The lifting appliances shall have the enough capacity to reach the installation height.
The lifting appliances shall have safe performance.
The precaution measures include two types: Warning and Note.
Warning: It is to alert you there is an optional risk of death or series injury!
Note: It is to alert you there is an optional risk of damage or property loss!
Warning
1. All installation and operation here should conform to your local electrical safety codes. We
assume no liability or responsibility for all the fires or electrical shock caused by improper
handling or installation.
2. Please make sure the power shall conform to the requirement of SELV (Safety Extra Low
Voltage) and the rated voltage of Limited Power Source according to the IEC60950-1, the
exact power supply requirement is subject to the device label.
3. Be sure to use all the accessories (such as power adapter) recommended by manufacturer.
4. Do not connect several speed domes to one power adapter. It may result in overheat or fire
if it exceeds the rated load.
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5. Before you connect the cable, install or uninstall, or begin the daily maintenance work,
please turn off the power and unplug the power cable.
6. Please make sure the produce is secure firmly on the wall or the ceiling.
7. Please turn off the power and unplug the power cable, If there is any smoke, disgusting
smell, or noise. Please contact your local retailer or customer service centre for help.
8. All the examination and repair work should be done by the qualified service engineers. We
are not liable for any problems caused by unauthorized modifications or attempted repair.
Note
1. Safety Transportation
Heavy stress, violent vibration or water splash are not allowed during transportation, storage
and installation.
This series product must use split type package during the transportation.
We are not liable for any damage or problem resulting from the integrated package during
the transportation.
2. When device is malfunction
Shut down the device and disconnect the power cable immediately if there is smoke, abnormal
smell or abnormal function. Please contact your local retailer ASAP.
3. Do not try to dismantle or modify the device
There is risk of personal injury or device damage resulting from opening the shell.
Please contact your local retailer if there is internal setup or maintenance requirement.
We are not liable for any problems caused by unauthorized modifications or attempted repair.
4. Do not allow other object falling into the device
Please make sure there is no metal or inflammable, explosive substance in the speed dome.
The above mentioned objects in the device may result in fire, short-circuit or damage.
Please shut down the device and disconnect the power cable if there is water or liquid falling
into the camera. Please contact your local retailer ASAP.
Please pay attention to the camera. Avoid the sea water or rain to erode the camera.
5. Handle carefully
Do not allow this series product fall down to the ground.
Avoid heavy vibration.
6. Installation Environment Requirement
This series speed dome should be installed in a cool, dry place away from direct sunlight,
inflammable, explosive substances and etc.
This series product shall be away from the strong electromagnetism radiant, please keep it
away from wireless power, TV transmitter, transformer and etc.
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7. Daily Maintenance
Please use the soft cloth to clean dust on the shell, or you can use soft cloth with cleaning
liquid to clean the shell and then use soft cloth to make it dry.
Do not use gasoline, dope thinner or other chemical material to clean the shell. It may result
in shell transfiguration or paint flake.
Do not allow the plastic or rubber material to touch the shell for a long time. It may result in
paint flake.
It is highly recommended to use the product with a lightning-proof device, which can realize
better lightning-proof effect.
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International Model
Max Transmission Distance
(Ft\M)
RG59/U
750Ft/229M
RG6/U
1,000Ft/305M
RG11/U
1,500Ft/457M
International Model
Max Transmission Distance
(M\Ft)
SYV-75-3
720P(25fps\30fps):500M/1640Ft
720P(50fps\60fps):300M/984Ft
1080P(25fps\30fps): 300M/984Ft
1 INSTALLATION PREPARATION
1.1 Basic Requirements
All installation and operation here should conform to your local electrical safety codes, fire
prevention laws and some related regulations.
Make sure if the application scene of the speed dome conforms to the installation
requirements. Please contact your dealer if you have any questions.
Please use the product according to the operating environment.
Please keep the original packing material well after opening the package; you can use
original packing material to pack the speed dome and send it back for maintenance in case
problems occur.
1.2 Installation Check
Make sure the installation site has enough space to hold the product and its mounting
components.
Please make sure the ceiling or wall can sustain 8X weight of the speed dome and its
mounting components.
Please make sure the wall is thick enough to install expansion bolts (Users need to purchase
separately).
It needs to guarantee the installation height shall be more than 6m if it is the intelligent
tracking speed dome or laser speed dome.
1.3 Cable Preparation
Please select video cable and lowest specification requirement of video coaxial cable according
to the transmission distance.
1.3.1 Cable Lowest Specification Requirement
75 ohm.
Full cable with copper conductor.
95% knitted copper shield.
Please refer to appendix Ⅱ for RS485.
Note
The above can be applied to analog speed dome and network speed dome.
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Note
The above can be applied to HDCVI speed dome.
1.3.2 Select Needed Power Supply Cable According to Transmission Distance
Refer to appendix Ⅱ for AC 24V power supply device.
Refer to appendix Ⅲ for DC 12V power supply device.
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2 SPEED DOME INSTALLATION
2.1 Check Accessories
Before installation, please check the accessories one by one according to the packing list.
Please make sure all the components listed are included.
2.2 Open the Device
Please open the box and then take out the speed dome. See Figure 2-1
Figure 2-1
Use screwdriver to remove the cover holder component and take out the EPE foam around the
camera module, which is shown in Figure 2-2.
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Figure 2-2
2.3DIP Switch Setup
2.3.1 DIP Switch Location and Function
The corresponding functions between analog speed dome and HDCVI speed dome are different,
which will be separately introduced below.
2.3.1.1 Analog Speed Dome
Dismantle the cover holder component and you can see there are two DIP switches on the PTZ
mainboard, which are used to set speed dome address, baud rate and parity. The location of DIP
switch is shown in Figure 2-3.
Figure 2-3
2.3.1.2 HDCVI Speed Dome
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5
Dismantle the cover holder component and you can see there are two DIP switches on the PTZ
mainboard, which are used to set speed dome address and baud rate. The location of DIP switch
is shown in Figure 2-4.
Figure 2-4
2.3.2 DIP Switch Setup
It needs to set the speed dome address number, baud rate and parity parameters before
controlling the speed dome. The speed dome will respond to its control command after
completing these settings.
Note
For wall-mounted speed dome, it has to install transparent cover component back to place
after taking out EPE foam and setting DIP switch well.
After some related information has been reset, it has to cut off the power and reboot the
device to make the new settings valid.
There are two DIP switches on the speed dome PTZ, which are used to confirm address, baud
rate and parity parameters. When the switch is moved to ON as 1, then 1 is the lowest bit and 8
is the highest bit for the address DIP setting; 1 is the lowest bit and 4 is the highest bit for the
baud rate and parity DIP setting. The intelligent speed dome can self-adapt to PELCO-D,
PELCO-P and industrial standard protocol, control protocol doesn’t need to be set via DIP switch.
2.3.3 Address Setup
The speed dome can use DIP switch to set address number, coding mode adopts binary coding.
1~8 bits are valid bit, the highest address bit is 255, the address label is shown in Figure 2-5,
please refer to Table 2-1 for the address bit setup.
Figure 2-5
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Address
1 2 3 4 5 6 7 8 1
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
1
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
2
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
3
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
4
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
5
ON
OFF
ON
OFF
OFF
OFF
OFF
OFF
6
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
7
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
8
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
……
…………………………………………………………………
254
OFF
ON
ON
ON
ON
ON
ON
ON
255
ON
ON
ON
ON
ON
ON
ON
ON
1 2 Baud Rate
OFF
OFF
9600bps
ON
OFF
4800bps
OFF
ON
2400bps
ON
ON
1200bps
3 4 Parity
OFF
OFF
NONE
ON
OFF
EVEN
OFF
ON
ODD
ON
ON
NONE
Table 2-1
2.3.4 Baud Rate and Parity Setup
The functions which need to be set between analog speed dome and HDCVI speed dome will be
introduced separately.
2.3.4.1 Analog Speed Dome
It is to set parity and baud rate of the speed dome. 1 and 2 bit are the baud rate setting bit while
3 and 4 bit are the parity setting bit. Please refer to Figure 2-6 for the label, refer to Table 2-2 and
Table 2-3 for settings.
Figure 2-6
Table 2-2
Table 2-3
2.3.4.2 HDCVI Speed Dome
It is to set baud rate of the speed dome. Bit 1 and 2 are baud rate setting bit. Refer to Figure 2-7
for the label and refer to Table 2-4 for the setting.
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1 2 Baud Rate
OFF
OFF
9600bps
ON
OFF
4800bps
OFF
ON
2400bps
ON
ON
1200bps
120Ω
1-2
ON
2-3
OFF
Figure 2-7
Table 2-4
2.4 Terminal Matching Resistance Setup
It is the connection mode of device terminal 120Ω resistance, terminal resistance 120Ω is
already equipped on the power panel, there are two connection modes, which is shown in Figure
2-8.
Figure 2-8
Refer to Figure 2-9 for the default connection mode, at this moment, the jumper cap on the
power board is connected to the location 2~3 of the socket and at this moment 120Ω resistance hasn’t been connected yet.
Figure 2-9
It needs to plug out the jumper cap from 2~3 location when it needs to connect to 120Ω
resistance, and then connect to the location of 1~2. In this case, 120Ω resistance is connected to
the circuit, which is shown in Figure 2-10.
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Figure 2-10
2.5 Reset Button Location and SD Card Installation (Network Speed
Dome Module)
Dismantle the cover holder component and open window cover, then you can see that the MicroSD card slot is located on the module ISP board, which is shown in Figure 2-11. Micro-SD card is
used for data storage.
Figure 2-11
2.6 Reset Button Location and SD Card Installation (Network Speed
Dome)
Dismantle the cover holder component; you can see there is a reset button and Micro SD card
slot on the PTZ mainboard, which is shown in Figure 2-12. Reset button can be used to restore
network to factory settings, Micro-SD card is used for data storage.
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Figure 2-12
2.7Speed Dome Installation
Note
The chapter can be applied to IR analog intelligent speed dome and IR network intelligent speed
dome and so on.
There are various types of brackets which can meet different application scenarios for the speed
dome, please refer to chapter 3 to 8 for the installation methods. It is to take wall-mounted
bracket as an example to install speed dome.
2.7.1 Install Quick Mount Connector
Twine Teflon tape over the thread of quick mount connector and rotate it into the pipe thread of
wall-mounted bracket, use M4 stainless screw to fix it firmly, which is shown in Figure 2-13, the
thread standard is G1 1/2 pipe thread.
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Figure 2-13
2.7.2 Speed Dome Cable
2.7.2.1 Cable Description
The camera is equipped with a multi-functional combination cable by default, which includes
power cable, video cable, audio cable, RS485 control cable, alarm cable, network cable, highfrequency cable and optical fiber cable etc. The cable detail is shown in Figure 2-14.
Figure 2-14
Note
Different models have different cable combinations; please refer to the actual cable combination
for more details. The cable combination is the most comprehensive example shown in the figure
above.
It is prohibited to pull the cable to lift the speed dome when moving the device, the wrong way of
carrying device is shown in Figure 2-15.
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Figure 2-15
2.7.2.2 Cable Connection
Buckle the safety hook of speed dome on the quick mount connector; connect the integrated
cable reserved by wall-mounted bracket to the corresponding power cable, video cable, audio
cable, RS485 control cable, alarm cable, network cable, high-frequency cable and optical fiber
cable etc. of the multi-functional combination cable of the speed dome (according to requirement),
and then use insulated rubber tape to twine the cable connection well to make it waterproof.
Refer to Figure 2-16 for more details.
Note
During actual installation, make sure the wire diameter of the cable which is to connect to RS485
control cable can’t be too big; otherwise it will affect the control effect. Please refer to appendix Ⅱ
RS485 bus for relevant introduction.
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Figure 2-16
2.7.2.3 Alarm Cable Connection
The alarm cable connection mode and config steps are shown as follows:
Step 1
Connect alarm input device to the ALARM IN and ALARM GND of the user cable.
Step 2
Connect alarm output device to the ALARM OUT and ALARM COM of the user cable, alarm
output is the relay switch output.
Step 3
Open the device WEB interface, make corresponding settings to the alarm input and output
device in “Setup > Event > Alarm Setup". The alarm input of WEB is corresponding to the alarm
input of the user cable. It is to set the corresponding NO and NC output according to the high and
low level signal generated by alarm input device when alarm triggers.
Step 4
Set the alarm output situation of user cable on the WEB.
2.7.2.4 Connect Speed Dome GND Cable
Connect the power line YELLOW & GREEN of the combination cable to the lightning protection
device, and make sure the lightning protection device is well grounded.
2.7.3 Install Speed Dome
Step 1
Pull the integration cable and multiple-function composite cable to the wall mount bracket slowly.
Step 2
Line up the straight edge of the flange of the intelligent speed dome to the straight edge of the
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quick installation port, and then push the intelligent speed dome to the bottom of the port slowly.
Step 3
Use your hands to turn the quick installation port M6*14 stainless screw (with spring washer) to
the Ф6.5 hole of the straight edge of the intelligent speed dome. Turn other two M6*14 stainless
screws to groove of intelligent speed dome flange. Use the inner hex tool to fix these three
stainless screws. Now you have completed the installation. See Figure 2-17.
Figure 2-17
Step 4
Check and make sure three stainless set screws on the quick mount connector are firmly
tightened, the speed dome is fixed stably and safety buckle connection is reliable. So far the
speed dome installation has been completed, which is shown in Figure 2-18.
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Figure 2-18
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3 Wall-mounted Bracket Installation
3.1 Mounting Component and Dimension
The wall-mounted bracket is shown in Figure 3-1 and its dimension is shown in Figure 3-2, the
dimension of adapter block is shown in Figure 3-3.
Figure 3-1
Figure 3-2
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Figure 3-3
3.2Wall-mounted Bracket Installation Steps
3.2.1 Installation Conditions
Wall-mounted speed dome can be installed on hard wall structure in both indoor and outdoor
environments. The wall needs to meet the following installation conditions:
The wall shall be thick enough to install expansion bolts.
The wall needs to sustain at least 8X weight of the camera and bracket etc.
3.2.2 Installation Steps
Step 1
As it is shown in Figure 3-4, take the mounting hole of wall-mounted bracket bottom as template,
draw punching position on the wall and dig holes, then insert the expansion bolts into the holes
you just dug (users need to prepare expansion bolts by themselves). Use 4 hex nuts and flat
gasket to twist wall-mounted bracket into the expansion bolts which have been inserted.
Figure 3-4
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Step 2
Install the IR intelligent speed dome on the wall-mounted bracket, which is shown in Figure 3-5.
Refer to “2.7 Speed Dome Installation” for the installation mode of speed dome.
Figure 3-5
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4 Hang-mounted Bracket Installation
4.1 Mounting Component and Dimension
The hang-mounted bracket is shown in Figure 4-1 and its dimension is shown in Figure 4-2.
Figure 4-1
Figure 4-2
Note
The bracket length is 200mm (default) and 400mm (Optional), it only needs to replace the
connection pole.
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4.2Hang-mounted Bracket Installation Steps
4.2.1 Installation Conditions
Hang-mounted speed dome can be installed on hard wall structure in both indoor and outdoor
environments. The wall needs to meet the following installation conditions:
The wall shall be thick enough to install expansion bolts.
The wall needs to sustain at least 8X weight of the camera and bracket etc.
4.2.2 Installation Steps
Step 1
As it is shown in Figure 4-3, first loosen the M4 screw on the lateral of connection plate, separate
connection plate from the connection pole, and then lead in the composite cable from seal
groove which is located on the bottom lateral notch of the connection plate and pull it through the
center hole which is connected to flange. Fix the connection plate on the ceiling.
Figure 4-3
Note
It needs to use silica gel to cover the contact surface between connection plate and ceiling, cable
outlet area to make it sealed and waterproof if the speed dome is used outdoors.
Step 2
As it is shown in Figure 4-4, pull the cable through connection pole, rotate the connection pole to
the connection plate and tighten M4 screw firmly, then push the decoration cover to the bottom.
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Figure 4-4
Note
It needs to twine enough Teflon tape on the thread of upper part of connection pole and then
twist the connection pole firmly to the connection plate.
Step 3
Install the speed dome, which is shown in Figure 4-5. Please refer to “2.7 Speed Dome
Installation” for exact installation mode.
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Figure 4-5
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5 Corner-mounted Bracket Installation
5.1 Mounting Component and Dimension
The corner-mounted bracket is shown in Figure 5-1; the dimension is shown in Figure 5-2.
Figure 5-1
Figure 5-2
5.2Corner-mounted Bracket Installation Steps
5.2.1 Installation Conditions
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Corner-mounted speed dome can be installed on hard wall structure which forms an included
angle of 90° in both indoor and outdoor environments. The wall needs to meet the following
installation conditions:
The wall shall be thick enough to install expansion bolts.
The wall needs to sustain at least 8X weight of the camera and bracket etc.
5.2.2 Installation Steps
Step 1
AS it is shown in Figure 5-3, take the mounting hole of corner-mounted accessory as template,
draw punching position on the wall with 90° included angle and install M8 expansion bolt. Pull the
integrated cable through the center hole of corner-mounted pedestal, leave enough wiring length
and use M8 nut to fasten corner-mounted pedestal on the wall firmly, and then use silicon
sealant to cover cable outlet and make it waterproof.
Figure 5-3
Step 2
Install speed dome, as it is shown in Figure 5-4; please refer to “2.7 Speed Dome Installation” for
exact installation modes.
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Figure 5-4
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6 Pole-Mounted Bracket Installation
6.1 Mounting Component and Dimension
Pole-mounted bracket is shown in Figure 6-1, dimension is shown in Figure 6-2.
Figure 6-1
Figure 6-2
6.2 Pole-mounted Bracket Installation Steps
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6.2.1 Installation Conditions
Pole-mounted speed dome can be installed on hard pole-shaped structure in both indoor and
outdoor environments. The wall needs to meet the following installation conditions:
The diameter of the pole structure shall comply with the installation dimension of the clamp.
Default factory hoop is 5 inches for the pole of φ80-130mm. It can work with the pole-
mounted bracket. You can adjust the diameter and the value (hoop specification) is : φ59-
82mm, φ84-108mm, φ80-130mm, φ130-152mm, φ155-178mm, φ180-203mm and φ194-
216mm. It is optional according to customers’ requirements; special dimension can be
customized as well.
The pole-mounted structure needs to sustain at least 8X weight of the camera and bracket
etc.
6.2.2 Installation Steps
Step 1
As it is shown in Figure 6-3, it is to install hoop and pole-mounted bracket. Pull the cable out of
the pole accessories and then use hoop to fix the accessories to the pole firmly. Finally, you can
use silicon sealant to cover the cable outlet and make it waterproof.
Figure 6-3
Note
Please check if the hoop is firmly fastened after installation, it may result in hoop breakage if it is
not properly installed.
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Step 2
Install speed dome, it is shown in Figure 6-4; please refer to “2.7 Speed Dome Installation” for
exact installation mode.
Figure 6-4
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7 APPENDIX Ⅰ THUNDER PROOF AND SURGE
PROTECTION (Outdoors)
This series speed dome adopts TVS lighting protection technology. It can effectively prevent
damages from various pulse signals below 6000V, such as sudden lighting and surge. While
maintaining your local electrical safety code, you still need to take necessary precaution
measures when installing the speed dome in the outdoor environment.
The distance between the signal transmission cable and high-voltage device (or high-voltage
cable) shall be at least 50 meters.
Outdoor cable layout shall go under the penthouse if possible.
For vast land, please use sealing steel tube under the land to implement cable layout and
connects one point to the earth. Open floor cable layout is forbidden.
In area of strong thunderstorm hit or near high sensitive voltage (such as near high-voltage
transformer substation), you need to install additional high-power thunder protection device
or lightning rod.
The thunder protection and earth of the outdoor device and cable shall be considered in the
building whole thunder protection and conform to your local national or industry standard.
System shall adopt equal-potential wiring. The earth device shall meet anti-jamming and at
the same time conforms to your local electrical safety code. The earth device shall not short
circuit to N (neutral) line of high voltage power grid or mixed with other wires. When connect
the system to the earth alone, the earth resistance shall not be more than 4Ω and earth
cable cross-sectional area shall be no less than 25 mm². See Figure 7-1
Figure 7-1
7.1 Lightning Protection (Indoors)
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The yellow and green GND wire or GND screw of the speed dome should be reliably connected
by several strands of copper wire with no less than 25mm²and indoor equipotential GND
terminal. Please refer to Figure 7-2 for lightningproof installation mode.
Figure 7-2
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Baud Rate
Max Distance
2400 BPS
1800M
4800 BPS
1200M
9600 BPS
800M
8 APPENDIX Ⅱ ABOUT RS485 BUS
8.1 RS485 Bus Main Feature
RS485 is semi duplex communication cable of impedance 120Ω. Its max load amount is 32
effective loads (including main control device and devices to be charged).
8.2 RS485 Bus Transmission Distance
When we take 0.56mm (24AWG) twisted-pair as communication cable, the max transmission
distance (theoretically) are listed below (according to different baud rates).
In the following situations, the max transmission distance shall become shorter accordingly:
The communication cable is a little bit thin;
The surrounding environment has strong electromagnetic interference;
There are too much devices connected to the RS485 bus;
And vice versa, the max transmission distance shall become longer.
8.3 The Problem in Practical Use
In practical usage, we usually adopt star type connection. The terminal resistance shall connect
to the furthest two devices (Such as device 1# and device 15# in Figure 8-1 ). But this connection
way does not conform to RS485 Bus standard. When the distances between devices are too
long, the signal reflection occurs and anti-jamming decreases, thus the signal reliability becomes
very low. You can see speed dome is not under control or speed dome is running automatically
and cannot stop.
Figure 8-1
In this situation, we recommend RS485 distributor. This device can turn star type connection into
the connection that conforms to RS485 bus industry standard, which can avoid the above
mentioned problems and enhance communication reliability. See Figure 8-2.
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8.4RS485 Bus FAQ
Phenomenon
Possible Reasons
Solution
Speed dome
can run selfdiagnosis but I
cannot control
it.
Host address(baud rate) and
speed dome address(baud rate)
are not match;
Positive and negative end of
RS485 Bus are misconnected;
Connection cable is loose;
RS485 Bus connection are cut
off;
Modify host or speed dome setup ;
Switch RS485 positive end and
It is the recommended transmission distance when the cable diameter is fixed and the 24V AC
power consumption is below 10%. For the AC device, the max permission voltage power
consumption is 10%. For example, when a device of rated power 20W installed from the
transformer 141 inches (42m), then the min cable diameter is 0.8000mm.
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33
mm
Feet(m)
w
0.8000
1.000
1.250
2.000
100
24.43
(7.45)
38.17
(11.63)
59.63
(18.18)
152.66
(46.53)
Page 41
34
mm
Feet(m)
w
0.8000
1.000
1.250
2.000
5
122.13
(37.23)
190.83
(58.16)
298.17
(90.88)
763.31
(232.66)
10
61.06(18.61)
95.41
(29.08)
149.08
(45.44)
381.66
(116.33)
15
40.71(12.41)
63.61
(19.39)
99.39
(30.29)
254.44
(77.55)
20
30.53(9.31)
47.71
(14.54)
74.54
(22.72)
190.83
(58.16)
25
24.43(7.45)
38.17
(11.63)
59.63
(18.18)
152.66
(46.53)
30
20.35(6.20)
31.80(9.69)
49.69
(15.15)
127.22
(38.78)
35
17.45(5.32)
27.26(8.31)
42.60
(12.98)
109.04
(33.24)
40
15.27(4.65)
23.85(7.27)
37.27
(11.36)
95.41
(29.08)
45
13.57(4.14)
21.20(6.46)
33.13
(10.10)
84.81
(28.85)
50
12.21(3.72)
19.08(5.82)
29.82(9.09)
76.33
(23.27)
55
11.10(3.38)
17.35(5.29)
27.11(8.26)
69.39
(21.15)
60
10.18(3.10)
15.90(4.85)
24.85(7.57)
63.61
(19.39)
65
9.39(2.86)
14.68(4.47)
22.94(6.99)
58.72
(17.90)
70
8.72(2.66)
13.63(4.15)
21.30(6.49)
54.52
(16.62)
75
8.14(2.48)
12.72(3.88)
19.88(6.06)
50.89
(15.51)
80
7.63(2.33)
11.93(3.64)
18.64(5.68)
47.71
(14.54)
85
7.18(2.19)
11.23(3.42)
17.54(5.35)
44.90
(13.69)
90
6.78(2.07)
10.60(3.23)
16.56(5.05)
42.41
(12.93)
95
6.43(1.96)
10.04(3.06)
15.69(4.78)
40.17
(12.25)
10 APPENDIX Ⅳ THE RELATIONSHIP BETWEEN THE 12V
DC CABLE DIAMETER AND THE TRANSMISSION
DISTANCE
It is the recommended transmission distance when the cable diameter is fixed and the 12V DC
power consumption is below 10%. For the DC device, the max permission voltage power
consumption is 10%. The cables used in the following sheet are all copper wires. (the resistivity
of copper is )
Page 42
35
mm
Feet(m)
w
0.8000
1.000
1.250
2.000
100
6.11(1.86)
9.54(2.91)
14.91(4.54)
38.17
(11.63)
Page 43
36
Metric bare wire
diameter
(mm)
AWG
SWG
Bare wire cross
section
(mm2)
0.050
43
47
0.00196
0.060
42
46
0.00283
0.070
41
45
0.00385
0.080
40
44
0.00503
0.090
39
43
0.00636
0.100
38
42
0.00785
0.110
37
41
0.00950
0.130
36
39
0.01327
0.140
35
0.01539
0.160
34
37
0.02011
0.180
33
0.02545
0.200
32
35
0.03142
0.230
31
0.04115
0.250
30
33
0.04909
0.290
29
31
0.06605
0.330
28
30
0.08553
0.350
27
29
0.09621
0.400
26
28
0.1257
0.450
25
0.1602
0.560
24
24
0.2463
0.600
23
23
0.2827
0.710
22
22
0.3958
0.750
21
0.4417
0.800
20
21
0.5027
0.900
19
20
0.6362
1.000
18
19
0.7854
1.250
16
18
1.2266
1.500
15
1.7663
2.000
12
14
3.1420
2.500
4.9080
3.000
7.0683
11 APPENDIX IV WIRE GAUGE REFERENCE SHEET
Note
This manual is for reference only. Slight difference may be found in the user interface.
All the designs and software here are subject to change without prior written notice.
All trademarks and registered trademarks are the properties of their respective owners.
If there is any uncertainty or controversy, please refer to the final explanation of us.
Please visit our website or contact your local service engineer for more information.
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