Dahua SD6CE series Installation Manual

IR Intelligent Speed Dome

Installation Manual

Version 1.0.0

i

Table of Contents

1 INSTALLATION PREPARATION ........................................................................ 1

1.1 Basic Requirement ................................................................................................................................ 1

1.2 Installation Check .................................................................................................................................. 1

1.3 Cable Preparation .................................................................................................................................. 1

1.3.1 The Min Specification Requirements of Cable ............................................................................. 1

1.3.2 Select Power Supply Cable ............................................................................................................. 2

2 DEVICE INSTALLATION .................................................................................... 3

2.1 Check Accessories ................................................................................................................................ 3

2.2 Open Device ........................................................................................................................................... 3

2.3 DIP Switch Setup ................................................................................................................................... 4

2.3.1 DIP Switch Location and Function ................................................................................................. 4

2.3.2 DIP Switch Setup .............................................................................................................................. 4

2.3.3 Address Setup ................................................................................................................................... 4

2.3.4 Baud Rate and Parity Setup ............................................................................................................ 5

2.3.5 Terminal Matched Resistance Setup ............................................................................................. 6

2.4 Reset Button Location and Micro SD Card Slot Installation ............................................................ 8

2.4.1 Use Reset Button .............................................................................................................................. 8

2.4.2 Install Micro SD Card ....................................................................................................................... 8

2.5 Camera Cable ........................................................................................................................................ 9

2.5.1 Cable Description .............................................................................................................................. 9

2.5.2 Cable Connection ........................................................................................................................... 10

2.5.3 Alarm Cable Connection ................................................................................................................ 10

2.5.4 Connect Camera GND Cable........................................................................................................ 10

ii

3 WALL-MOUNT INSTALLATION........................................................................ 11

3.1 Installation Component and Dimension ........................................................................................... 11

3.2 Wall-Mounted Installation Steps ........................................................................................................ 11

3.2.1 Installation Conditions .................................................................................................................... 11

3.2.2 Installation Steps ............................................................................................................................. 12

4 HANG-MOUNT INSTALLATION ....................................................................... 15

4.1 Installation Component and Dimension ........................................................................................... 15

4.2 Hang-mounted Bracket Installation Steps ....................................................................................... 15

4.2.1 Installation Conditions .................................................................................................................... 15

4.2.2 Installation Steps ............................................................................................................................. 16

5 APPENDIX Ⅰ LIGHTNING PROOF AND SURGE PROTECTION (OUTDOORS)

19

5.1 Lightning Protection (Indoors) ............................................................................................................ 19

6 APPENDIX Ⅱ ABOUT RS485 BUS ................................................................... 21

6.1 RS485 Bus Main Feature ................................................................................................................... 21

6.2 RS485 Bus Transmission Distance .................................................................................................. 21

6.3 The Problem in Practical Use ............................................................................................................ 21

6.4 RS485 Bus FAQ .................................................................................................................................. 22

iii

7 APPENDIX Ⅲ THE RELATIONSHIP BETWEEN AC 24V CABLE DIAMETER

AND TRANSMISSION DISTANCE .......................................................................... 23

8 APPENDIX Ⅳ THE RELATIONSHIP BETWEEN DC 12V CABLE DIAMETER

AND TRANSMISSION DISTANCE .......................................................................... 24

9 APPENDIX Ⅴ WIRE GAUGE REFERENCE SHEET ........................................ 26

iv

Welcome

Thank you for purchasing our speed dome!
Please read the following safeguards and warnings carefully before you install or use the product!

v

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. Do not connect several speed domes to one power adapter. It may result in overheat or fire
if it exceeds the rated load.

3. Before you connect the cable, install or uninstall, or begin the daily maintenance work,
please turn off the power and unplug the power cable.

4. Please make sure the product is secured firmly on the wall or the ceiling.

5. 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 center for help.

vi

6. 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.

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.

vii

 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.

1

1 Installation Preparation

1.1 Basic Requirement

 All installation and operation here should conform to your local electrical safety code, fire

protection regulations and other relevant regulations.

 Make sure the application scene of the camera meets the installation requirements. Please

contact dealer if you have any confusions.

 Please use the product according to the operating environment.
 Please keep the original packing materials properly after opening the package. Please pack

the camera with original packing materials and send it back for maintenance if anything
happens to the product.

1.2 Installation Check

 Please make sure the installation environment has enough space to install the product and

its mounting structure components.

 Please make sure the ceiling or wall can sustain 8X weight of the camera and corresponding

mounting structure components.

 Please make sure the wall is thick enough to install expansion bolts (users need to prepare

by themselves).

 It needs to pay attention that the installation height is required to be more than 6m if it is an

intelligent tracking device or laser speed dome.

1.3 Cable Preparation

Please select the min specification requirement of cable and video coaxial cable according to the
transmission distance.

1.3.1 The Min Specification Requirements of Cable

 75 ohm impedance.
 Full cable with copper conductor
 95% knitted copper shield
 RS485 communication cable, refer to appendix 2 for more details.

Note

The following table can be applied to analog speed dome and network speed dome.

International Model

Max Distance
(Ft\M)

RG59/U

750ft (229m)

RG6/U

1,000ft (305m)

RG11/U

1,500ft (457m)

Table 1-1

Note

The following table can be applied to HDCVI speed dome.

2

International Model

Max Transmission Distance (Ft/M)

SYV-75-3

720P（25fps/30fps）：1,640ft/500m

720P（50fps/60fps）：984ft/300m

1080P（25fps/30fps）：984ft/300m

Table 1-2

1.3.2 Select Power Supply Cable

Refer to “Appendix 3 AC 24V Cable Diameter and Transmission Distance” for AC 24V power
supply device.
Refer to “Appendix 4 DC 12V Cable Diameter and Transmission Distance” for DC 12V power
supply device.

3

2 Device 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 includes.

2.2 Open Device

Please open the box and then take out the device, the device appearance is shown in Figure 2-1.

Figure 2-1

Both CVI speed dome and network speed dome have the same appearance, but the internal
structure differs from each other. Please select the corresponding chapter to refer to according to
the device you have purchased.
 CVI speed dome: Please refer to “2.3 DIP Switch Setup (Only for the reference of CVI speed

dome):

 Network speed dome: Please refer to “2.4 Reset Button Location and Micro SD Card

Installation (Only for the reference of network speed dome)”

4

2.3 DIP Switch Setup

2.3.1 DIP Switch Location and Function

Open the rear cover of the device, then you can see there is DIP switch on the ISP board which
is above the camera module, which is shown in Figure 2-2. The DIP switch is used to set the
parameters of address, baud rate and parity.

Note

It doesn’t have to make relevant RS485 settings when the HDCVI intelligent speed dome is only
using coaxial control.

Figure 2-2

2.3.2 DIP Switch Setup

It has to set the address number, baud rate, parity or HD/SD video format used by speed dome
before controlling the device. The speed dome will respond to its control commands after these
settings are completed.

Note

 It has to cut off the power and restart the device to make new settings valid.
 For the speed dome with cover, it needs to take down the transparent dome cover before

setting, remove the EPE foam; it needs to install the transparent dome cover back in place
after settings are completed.

The speed dome DIP switch is used to confirm address, baud rate and parity. When the switch is
moved to ON as 1, then 1 is the lowest bit and 8 is the highest in the address setting dial code; 1
is the lowest bit and 4 is the highest in the setting dial code of baud rate, parity or HD/SD video
format (The intelligent speed dome can self-adapt to PELCO-D, PELCO-P and industrial
standard protocol, the control protocol doesn’t need to be set via dial code).

2.3.3 Address Setup

Note

5

The figure of DIP switch shown in the user manual is for reference only; please refer to the actual
device for more details about the DIP switch.
The speed dome can use DIP switch to set address number, encoding mode can adopt binary

coding. 1(24)～8(17) is valid bit, the highest address bit is 255, please refer to Figure 2-3 for
address label and refer to Table 2-1 for address bit setting.

Figure 2-3

Address

1(24)

2(23)

3(22)

4(21)

5(20)

6(19)

7(18)

8(17)

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

Table 2-1

2.3.4 Baud Rate and Parity Setup

Note

The figure of DIP switch shown in the user manual is for reference only; please refer to the actual
device for more details about the DIP switch.
It is to set the baud rate and parity of the speed dome. 9(16) and 10(15) is setting bit of baud rate,
11(14) and 12(13) is setting bit of parity. Please refer to Figure 2-4 for label and refer to Table
2-2 and Table 2-3 for setting.

6

Figure 2-4

9(16)

10(15)

Baud Rate

OFF

OFF

9600bps

ON

OFF

4800bps

OFF

ON

2400bps

ON

ON

1200bps

Table 2-2

11(14)

12(13)

Parity

OFF

OFF

NONE

ON

OFF

EVEN

OFF

ON

ODD

ON

ON

NONE

Table 2-3

2.3.5 Terminal Matched Resistance Setup

The jumper cap which is used to set terminal resistance is located below module ISP, which is
shown in Figure 2-5.

7

Figure 2-5

There are two connection modes of device terminal 120Ω resistance, which has already existed
on the power board. Please refer to Figure 2-6 for more details.

Figure 2-6

Refer to Figure 2-11 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 120Ω resistance hasn’t been
connected yet.

Figure 2-7

8

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 2-8.

Figure 2-8

2.4 Reset Button Location and Micro SD Card Slot Installation

Open the rear cover of the speed dome, then you can see there is reset button and Micro SD
card slot on the ISP board which is above the camera module. Please refer to Figure 2-9 for
more details.

Figure 2-9

2.4.1 Use Reset Button

Reset button is used to reset the network system.
Open the rear cover of speed dome and long press the reset button (more than 10s) to reset the
device, then all the settings will be restored to factory default.

2.4.2 Install Micro SD Card

Micro SD card is used for data storage.

9

Make the side with metal contact of the Micro SD card face downward, (pay attention to the
direction of inserting Micro SD card) insert it into the slot.

Note

Push the SD card according to the direction where the card is inserted, and the card will pop out
automatically.

2.5 Camera Cable

2.5.1 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 2-10.

Figure 2-10

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 2-11.

10

Figure 2-11

2.5.2 Cable Connection

Connect cable which is pulled out of wall to the corresponding power cable, video cable, audio
cable, RS-485 control cable, alarm cable, network cable, high frequency cable and optical fiber
cable etc. (according to the actual requirements) of the multi-functional combination cable, and
then twine the cable connector with insulated tape to make it waterproof.

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 2 RS485 bus for relevant introduction.

2.5.3 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.

2.5.4 Connect Camera 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.

11

3 Wall-Mount Installation

3.1 Installation Component and Dimension

The wall-mounted bracket is shown in Figure 3-1; refer to Figure 3-2 for bracket dimension.

Figure 3-1

Figure 3-2

3.2 Wall-Mounted Installation Steps

3.2.1 Installation Conditions

The wall-mounted speed dome can be used on hard wall structure in both indoor and outdoor
environments. The wall needs to meet the following installation conditions:

12

 The wall shall be thick enough to install expansion bolts.
 The wall shall sustain at least 8X weight of the camera and bracket etc.

3.2.2 Installation Steps

Step 1

Take pedestal of wall-mounted bracket as template; confirm the location of threaded hole and
screw. Draw the screw location on the wall and knock the expansion bolts into the screw holes.

Step 2

Pull the speed dome cable through the main body of bracket, and hang both sides of the steel
wire rope on the fixing buckle of the speed dome and the fixing buckle under the bracket
respectively, which is shown in Figure 3-3.

Figure 3-3

Step 3

Push the speed dome upward to make the flange enter the bracket, and use hex bolt to tighten
the screws on the bracket, which is shown in Figure 3-4.

13

Figure 3-4

Step 4

Lift the camera and bracket to the same altitude as the punch position on the wall, use screw to
fix the speed dome and bracket on the wall to complete installation, which is shown in Figure 3-5.

14

Figure 3-5

15

4 Hang-Mount Installation

4.1 Installation Component and Dimension

The hang-mounted bracket is shown in Figure 4-1; refer to Figure 4-2 for bracket dimension.

Figure 4-1

Figure 4-2

Note

The adjustable range of bracket length is: default 200mm, optional 400mm; it only needs to
replace the connection pole.

4.2 Hang-mounted Bracket Installation Steps

4.2.1 Installation Conditions

The 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 shall sustain at least 8X weight of the camera and bracket etc.

16

4.2.2 Installation Steps

Step 1

As it is shown in Figure 4-3, first it needs to loosen the M4 screw on the lateral of the connection
chassis to separate the connection chassis from the connection pole, and then pull the
integration cable through the airproof slot at the bottom of connection chassis and make it pass
through the center hole which connects to the flange and fix the connection chassis on the ceiling.

Figure 4-3

Note

It needs to paste the silica gel on the surface between the connection chassis and ceiling, and
the location around cable exit to make it waterproof if the speed dome is applied in the outdoor
environment.

Step 2

As it is shown in Figure 4-4, pull the cable through the connection pole, and then rotate the
connection pole into the connection chassis and tighten the M4 screw firmly. Open the cable exit
hole on the decoration cover and push it all the way to the bottom.

Figure 4-4

17

Note

It needs to twine enough Teflon tape at the top screw thread of the connection pole and then
rotate the connection pole into the connection chassis firmly if the speed dome is used in the
outdoor environments.

Step 3

Install the quick installation connector on the connection pole, which is shown in Figure 4-5.

Figure 4-5

Step 4

Connect the speed dome cable to the cable pulled out from the connection pole, and fix the
speed dome on the quick installation connector to complete installation, which is shown in Figure
4-6.

18

Figure 4-6

19

5 APPENDIX Ⅰ LIGHTNING PROOF AND SURGE

PROTECTION (Outdoors)

This series speed dome adopts TVS lighting protection technology. It can effectively prevent
damages from various pulse signals below 6000W, 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 5-1.

Figure 5-1

5.1 Lightning Protection (Indoors)

20

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 5-2 for lightningproof installation mode.

Figure 5-2

21

6 APPENDIX Ⅱ ABOUT RS485 BUS

6.1 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).

6.2 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.

6.3 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 6-1). 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 6-1

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 6-2.

Baud Rate

Max Distance

2400 BPS

1800M

4800 BPS

1200M

9600 BPS

800M

22

Figure 6-2

6.4 RS485 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

negative end；

 Fix connection cable firmly；
 Replace RS485 Bus.

I can control
the speed
dome but is not
smooth

 RS485 Bus connection are not

good；

 One RS485 bus is off；
 The distance between host and

speed dome is too far；

 Parallel connected too much

speed domes.

 Connect RS 485 Bus again；
 Replace RS485 Bus；
 Add terminal matching resistance；
 Add RS485 distributor.

23

7 APPENDIX Ⅲ THE RELATIONSHIP BETWEEN AC 24V

CABLE DIAMETER AND TRANSMISSION DISTANCE

The max transmission distance is recommended when the cable diameter is fixed and AC 24V
voltage loss rate is lower than 10%. For the AC power supply devices, the max allowed voltage
loss rate is 10%. For example, a device with rated power of 20W, installed 141 feet (42m) away
from the transformer, the minimum wire diameter needed is 0.8000mm.

mm
Feet（m）

w

0.8000

1.000

1.250

2.000

5

488.52
（148.90）

763.31
（232.66）

1192.67
（363.53）

3053.25
（930.63）

10

244.26
（74.45）

381.66
（116.33）

596.34
（181.76）

1526.62
（465.31）

15

162.84
（49.63）

254.44
（77.55）

397.56
（121.18）

1017.75
（310.21）

20

122.13
（37.23）

190.83
（58.16）

298.17
（90.88）

763.31
（232.66）

25

97.70
（29.78）

152.66
（46.53）

238.53
（72.71）

610.65
（186.13）

30

81.42
（24.82）

127.22
（38.78）

198.78
（60.59）

508.87
（155.10）

35

69.79
（21.27）

109.04
（33.24）

170.38
（51.93）

436.18
（132.95）

40

61.06
（18.61）

95.41
（29.08）

149.08
（45.44）

381.66
（116.33）

45

54.28
（16.54）

84.81
（25.85）

132.52
（40.39）

339.25
（103.40）

50

48.85
（14.89）

76.33
（23.27）

119.27
（36.35）

305.32
（93.06）

55

44.41
（13.54）

69.39
（21.15）

108.42
（33.05）

277.57
（84.60）

60

40.71
（12.41）

63.61
（19.39）

99.39
（30.29）

254.44
（77.55）

65

37.58
（11.45）

58.72
（17.90）

91.74
（27.96）

234.87
（71.59）

70

34.89
（10.64）

54.52
（16.62）

85.19
（25.97）

218.09
（66.47）

75

32.57（9.93）

50.89
（15.51）

79.51
（24.24）

203.55
（62.04）

80

30.53（9.31）

47.71
（14.54）

74.54
（22.72）

190.83
（58.16）

85

28.74（8.76）

44.90
（13.69）

70.16
（21.38）

179.60
（54.74）

90

27.14（8.27）

42.41
（12.93）

66.26
（20.20）

169.62
（51.70）

95

25.71（7.84）

40.17
（12.25）

62.77
（19.13）

160.70
（48.98）

100

24.43（7.45）

38.17
（11.63）

59.63
（18.18）

152.66
（46.53）

24

8 APPENDIX Ⅳ THE RELATIONSHIP BETWEEN DC 12V

CABLE DIAMETER AND TRANSMISSION DISTANCE

The max transmission distance is recommended when the cable diameter is fixed and DC 12V
voltage loss rate is lower than 10%. For the DC power supply devices, the max allowed voltage
loss rate is 10%. The cables used in the following table are all copper wire (the copper resistivity

is ).

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

10.04

15.69

40.17

25

mm

Feet（m）
w

0.8000

1.000

1.250

2.000

（1.96）

（3.06）

（4.78）

（12.25）

100

6.11
（1.86）

9.54（2.91）

14.91
（4.54）

38.17
（11.63）

26

9 APPENDIX Ⅴ WIRE GAUGE REFERENCE SHEET

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

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.