i3 International PTZ Speed Dome Installation guide

Brand: i3 International

Model: PTZ Speed Dome

Type: Installation guide

-1-

Installation Manual

5-inch Series High Speed Dome

Before use the product, please read this manual carefully.

-2-

Important Safeguards

Requirements to Installation and Service Personnel

Being qualified for CCTV system installation or service; Being

qualified for relating operations (such as work high above the

ground); Being familiar with the following basic knowledge

and operational skills:

Basic knowledge and installing skills of CCTV systems and

components.

Basic knowledge of electrical wiring and low-voltage electri-

cal hookups.

Have read this manual.

Requirements to Lift Equipment

Proper safety and lift equipment for the location and type of

installation.

Proper lift equipment with lift height enough to reach the

installation.

Good safety features of the lift equipment.

Do not install this speed dome in hazardous places where

flammable and explosive materials are stored or used.

Always conform to national and local safety codes during

installation.

This product runs on 24VAC. Do not connect higher voltage to

this product.

Be sure the power is not connected to the speed dome and

nearby fixtures during the installation.

Do not install this dome camera in a place exceeding the re-

quired environmental conditions.

Environmental Requirements

Requirements for Indoor Dome

Requirements for Outdoor Dome

Maximum Temp. Range

-40

～

+60

℃

Humidity

<90%

Air Pressure

86～106KPa

AC Power Supply

24V,2.50A,50/60HZ

Maximum Temp. Range

-10

～

+50

℃

Humidity

<90%

Air Pressure

86～106KPa

AC Power Supply

24V,1.25A,50/60HZ

Warnings

-3-

Type

Weight(kg/lb)

Indoor Ceiling Dome

2.43kg（5.40lb）

Indoor Dome

(excluding bracket)

2.93kg（6.51lb）

Outdoor Dome

(excluding bracket)

3.78kg（8.40lb）

Pendant Bracket

0.54kg（1.19lb）

Wall Bracket

1.25kg（2.78lb）

Corner Bracket

1.90kg（4.22lb）

Pole Bracket

1.20kg（2.67lb）

Before You Start

1. General Requirements

Always conform to national and local electrical safety codes,

fire control codes and other relating codes during installation.

Before installation, check items in the package and make sure

that dome and accessories match installation environment and

required mounting mode. If not contact your local distributor.

install this speed dome according to environment requirements.

2. Check Installation Space

Make sure the space of installation is enough for dome con-

figuration and brackets.

3. Check Installation Spot Construction Strength

Check the ceiling, wall and bracket’s supporting loads. They

should be able to withstand at least 4 times the weight of

speed dome and the mounting accessories.

4. Preparation for Wiring

Select the type of cables based on transmitting distance.

Video coaxial cable

Minimum cable requirements: 1) 75 Ω impedance; 2) All-

copper center conductor; 3) 95% braided copper shield.

RS485 communication cables (Refer to Appendix Ⅲ)

24VAC

power supply cable (Refer to Appendix Ⅳ)

5. Setting DIP Switches

Refer to Appendix Ⅵ for protocol and address settings.

6. Dome Self-testing after Powered up

To ensure the normal operation of dome camera after installation,

remove the circuit connection board before installation. Plug

the power cable, video cable, communication cable

connectors into the relating sockets on the circuit connection

board

for self-testing purpose. Plug the RJ45 connector into the

socket on Pan/tilt module. After powered up, the dome will

conduct

reset procedure. In the procedure, the dome firstly pans

to the

default horizontal origin point, then tilts down to the

vertical

origin point, and lastly tilts to the vertical 45 ° position to

complete the self-testing. After the dome stops, it means the cam-

era has completed the self-testing and is ready to receive

control commands.

7. Keep All the Original Package Materials of Dome

Camera

Please keep all the original packing materials of dome camera

after unpacking the speed dome. If there is any need of service

to the dome camera, pack it in the original packing and

send

the package to the distributor or factory.

Notice: Non-original package may cause damage to

dome camera thus arouses additional service charges.

Notice: After the self-testing, install the circuit

connection board back.

International

Gauge

Maximum

Distance(ft\m)

750ft（229m）

1,000ft（305m）

1,500ft（457m）

-4-

Installation Introduction

5-inch series speed dome cameras are categorized into indoor

dome and outdoor dome based on installation environment.

For indoor dome camera, it has a one-layer housing.

For outdoor dome camera, it has an additional sun-shield hous-

ing over the lower housing and a heater and a fan have been

installed inside the housing.

5-inch series speed dome cameras are categorized into the

following types based on mount mode:

Ceiling Mount

Bracket Mount

The bracket mount includes three different mounting modes:

Wall Mount

Corner Mount

Pole Mount

Pendant Mount

2-1 Ceiling Mount

This mode of mount is applicable to installation spot with a

ceiling. Cut an appropriate hole in the ceiling and install the

dome housing inside the hole. After the down cover is installed,

the dome appears like a beautiful light. Apart from the function

of monitoring, the dome also features the function of decoration.

2-2 Bracket Mount

There are different brackets base to suit different installation

spots. Installation on the wall should adopt wall bracket; instal-

lation on the projecting corner of two walls or on the corner of

a cubic pillar should adopt the corner bracket; installation around

a round pillar should adopt the pole bracket.

The bracket mount dome camera is beautiful and elegant in

design. Apart from the function of monitoring, the dome also

features the function of decoration to environment.

Pendant mount is applicable to the installation spot with a solid

cement ceiling. Drill holes in the ceiling for expansion bolts,

then install the pendant bracket base. When the ceiling is not

high, just install the dome camera to the pendant bracket base

directly; when the ceiling is high, add a suspender to connect

the pendant bracket base and a thread tube to connect the

suspende

The suspender is

o lowe

r t

he dome installation

height. Lastly install the dome to the thread tube.

For a steel construction ceiling, the pendant mount can also be

used. User should prepare a board to fix the pendant bracket

base on for the pendant mount. Apart from the function of

monitoring, the dome also features the function of decoration

like a beautiful light.

The mentioned modes of mount above are explained in details

in the coming sections.

-5-

Notice: The thickness of the ceiling to install speed

dome must be 1.65 inch (4.2 cm) and 0.38 inch (0.

8cm).

Notice: The ceiling should withstand 4 times the load

of the speed dome weight.

Picture 4

Ceiling Mount

Refer to Picture 1 for the 5’’ ceiling mount dome camera instal-

lation configuration. The back box is located above the mount

hole in the ceiling. The back box is tightly secured on the ceiling

by the swing mounting clips and flange.

Use the safety chain as the tool to draw the circle. Open the

package and take out the back box. Unscrew the secure screw

to remove the safety chain. The length between the two loop

ends of the safety chain is 112.5 cm (refer to Picture 3).

Picture1

Picture 3

STEP 1 Prepare Mounting Hole in Ceiling

1. Utilize any of the two suggested tools to draw a circle on the

ceiling.

Find the drawing among the accessories in the package. The

drawing shows a circle with 225mm in diameter. Cut the circle

off. Using the circle or the hole in the drawing as the template,

draw a circle with 225±2mm in diameter on the ceiling where

you want to mount the speed dome (refer to Picture 2).

2. Decide the center of the circle on the ceiling. Drill a hole in the

ceiling with a 3mm drill (refer to Picture 4).

Pictur 2

Cutting outline

-6-

Controller

Notice: Switch the power on after cable connections

are completed. The LED on the circuit connection board

should be lit. If not, refer to troubleshooting sheet for

solutions.

Notice: Be sure that the power has been switched off

before cable connections.

Notice: Install the safety chain back to the back box

after completing the hole cut.

Notice: Check and make sure the diameter of circle

drawn is 225 2mm before you begin to cut the circle.

If the diameter is 338mm, installation is not possible.

225

Picture 6

R112.5±1

RS485(2pin)

Coaxial Cable or

Twisted Pair Cable

Fuse

(1A)

Power

Light

24VAC

Transfor mer

3. Put a 3mm nail (or stick) into one loop end of the safety chain.

Insert the nail into the drilled hole in the ceiling. Pull straight the

safety chain. Insert a pencil into the other loop end to draw a

circle with diameter of 225 ± 2mm (refer to Picture 5).

STEP 2 Install Back Box

1. Pull the power, video and Rs485 communication cables through

the center hole of the water-resistant connecter (Accessory).

Pull the cables through the hole at the top of the back box.

Leave enough cable length into the hole. Turn the water-resis-

tant connecter into the top of the back box. Connect the corre-

sponding plugs (Accessories) to the ends of the three cables

(refer to Picture 7).

Picture 5

Choose an appropriate tool for the material of the ceiling to cut

the hole. Remove the cut-down circle thus a hole with diameter

of 225 ±2mm is achieved (refer to Picture 6).

Picture 7

2. Unscrew the three mounting screws on the circuit connection

board inside the back box. Remove the circuit connection board.

Plug the connectors of 24Vac video and RS485 cables into the

corresponding sockets. Install the circuit connection board back.

Choose coaxial video cable connector or twisted pair cable

connector for practical use (refer to Picture 8, 9).

Circuitry Diagram

Coaxial Cable

Video Output

Picture 8

-7-

C e ilin g Th ic kn e ss

Pic tu re 9

Notice: Do not over-turn the mounting clip bolts,

otherwise the flange may be distorted which can affect

the installation.

Notice: Check to see if the flange surface has clung to

the ceiling. If there is gap, re-install the back box.

Ceiling thickness

Picture 10

Video

VAC

485B

485A

4. Swing the three mounting clips to adhere to back box wall. Place

the back box inside the ceiling hole. Let the flange cling to the

ceiling (refer to Picture 11).

Coaxial Video

Cable Circuit

Connectio n B oard

24 VAC

Video -

Video +

VAC

485B

485A

Twisted Pair Video

Cable Circuit

Connectio n B oard

Picture 11

Picture 9

Appearance of

Connected

Cables to

Circuit

Connection Board

Turn the three mounting clip bolts to let the mounting clips press

the ceiling and swing out gradually. The ceiling is clamped

between the mounting clips and the flange , thus the back box

is secured above the ceiling (refer to Picture 12).

3. For easy installation, adjust the three swing mounting clips to

let

the distance between the clips and the flange a little longer

than ceiling thickness (refer to Picture 10).

Picture 12

Swing out Mounting Cli p

-8-

Step 3 Install Pan/Tilt Module

Turn and loosen the two M5 screws on the connecting bridge

inside the back box. Turn only a little more than 3 circles (refer

to Picture 13).

Take out the Pan/Tilt module from package. Check and make sure

the plugs are in sockets, and the screws and nuts are locked.

If not, secure the connections.

DIP switch setting (refer to Appendix VI):

Hold the stepping motors with both hands. Press the synchro-

nized big and small belt wheels with fingers to prevent them

from turning. There are two mounting screw holes in the mod-

ule

baseboard. Attach the mounting screw holes' big ends

over

the two screws on the connecting bridge. Rotate the

baseboard until it cannot move. The screws then locate in the

small ends of the mounting screw holes. Tighten the two M5

screws to mount the Pan/Tilt module inside the back box (refer

Picture 13).

Step 4 Power on Inspection

Check and confirm all the wiring and connections are in order

and the polarities (‘’+’’&’’-’’) of wire in the connection are correct.

Switch power on.

After powered up, the dome will begin self-testing and conduct

reset procedure. In the procedure, the dome firstly pans to the

default horizontal origin point, then tilts down to the vertical

origin point, and lastly tilts to the vertical 45 ° position to com-

plete the self-testing. After the dome stops, it means the cam-

era has completed the self-testing and is ready to receive

control commands.

Picture 13

5. Plug the RJ45 wiring connector of the entering cables into the

corresponding socket on the module power PCB. Now Pan/Tilt

module installation is completed.

M5 Screws

BaseBoard

( Plate)

Mounting

Hole

Motors

Big Belt Wheel

Notice: Refer to Appendix VI to set baud rate, protocol

and address of dome camera before installation.

-9-

Picture 15).

Notice: Store the safety chain in the arc groove inside

the down cover ring. This can help install the down

cover smoothly to protect dust from entering the dome.

Notice: If the down cover cannot be installed to the

back box flange, the possible reason is that the three

bolts of the flange are overturned or unevenly turned

in force (refer to Step 2, section 5). The flange is

distorted so the down cover cannot enter the flange.

Adjust the three bolts until the down cover can be

turned in.

Clasps and

Mounting Hole

Safety Chain

3 M 3 Plastic

Poles

Step 5 Install Acrylic Down Cover

One end of the safety chain is secured to the back box. Attach

the other loop end over one of the three plastic poles on the

down cover and secure the connection with M3 screw

(altogether 3 plastic poles on the down cover ring, choose any

one of them).

Align the three groups of clasps with the mounting holes in the

back box flange. Insert the clasps into the wide parts of the

holes. Turn the down cover clockwise until it cannot move.

The clasps are locked in the narrow parts of the holes (refer to

Picture 14).

The appearance of the ceiling dome after installation (refer to

Picture 15

Picture 14

-10-

＂

01:Housing

02:Pan/Tilt Module

03:Down Cover

04:RJ45 Connector Wi re

05:Circuit Connection Board

06: Wall Mount Bracket

Pendant Bracket Base

＂

Housing

Down Cover

Pan/Tilt Module

Thread Tube

Pan/Tilt Module

Bracket Mount

The dome camera is installed with a bracket as Picture 16,17

shows. With different mounting brackets, the dome can be

installed in different sites.

●

To install the dome camera on wall with the wall mount bracket

●

To install the dome camera on the projecting corner of two walls

or the corner of a cubical pillar with the corner mount bracket

●

To install the dome camera around a round pillar with the pole

mount bracket

●

To install the dome camera on ceiling with a pendant bracket

Picture 17

Picture 16

If installation height is low, screw housing directly into pendant

bracket base (refer to Picture 17).If installation height is high,

connect the suspender to the pendant bracket base (refer to

Picture 18).

Picture 18

Notice: The installation site must be able to withstand

four times the weight of dome, bracket and bracket

base.

-11-

Notice: The wall for installation should be firm without

peeling off. The installation site must be able to

withstand four times the weight of dome, bracket and

bracket base.

Unit: mm

84.00

15.40

01:Cables

03:Space

05:Nut M8

02:Bracket

04:Spring Washer

01:Corner base

03:Spring Washer(*10)

05:Bracket

07:ScrewM8(*2)

02:Washer(*10)

04:NutM8 (*8)

06:WasherM 8(*2)

140.00

70.00

Step 1 Install Bracket

1. Wall mount

Installation on the wall must be done with a wall bracket.

The wall for installation should be firm without peeling off.

Install the dome on solid wall but not on coatings of wall.

1) Take the bracket base as the template to mark the positions of

the holes to be drilled on the wall (refer to Picture 19)

3) Pull power cable, RS485 communication cable and video cable

through the cavity of bracket. Leave cables enough long out-

side the bracket

4) Secure bracket to the mounting wall with 4*M8 nuts.

2. Corner mount

The corner mount is applicable on a projecting 90°corner

when two walls interface or on the corner of a cubical pillar.

Take out the corner mount bracket from Package. Use it as the

template to draw the center positions of the mounting holes.

2) Drill 8 holes on mounting wall suitable for M8 expansion bolts.

Push M8 expansion bolts into the holes.

3) Use M8 nuts to secure corner bracket base to the mounting

surface.

Pull power cable, RS485 communication cable and video cable

through the central holes of corner bracket base and water-

resistant pad, and the cavity of bracket. Keep cables enough

long outside the bracket (refer to Picture 21).

Picture 19

2) Drill holes for 4*M8 expansion bolts on wall with heavy-duty

electrical drill. Push M8 expansion bolts into the holes (refer to

Picture 20).

Picture 21

Picture 20

-12-

01:Bracket

03:Spring Washer(*2)

05:Pole Bracket Base

07:Pole

02:Washer(*2)

04:Screw M8(*2)

06:Ferrule(*2)

08:Screw M8(*2)

(If installation height is <300mm,

screw housing directly into the bas e.)

Drill Hole

Pendant Bracket Base

(If installation height is <300mm,

screw housing directly into the base)

3. Pole mount

The pole mount is applicable to installation on pillar with diam-

eter of 130-150mm(5.12’’- 6’’).

The pillar for installation should be able to withstand four times

the weight of dome, bracket and bracket base.

Take out the pole mount bracket base and the two ferrules from

package. Unscrew the bolts of the two ferrules. Put one end

of the ferrule around the pole. Put the other end through the

holes in the pole bracket base and insert it in the hole of an-

other end. Fasten the bolt so that the ferrule is secured around

the pole.

Pull power, RS485 communication and video cables through the

central holes of pole bracket base and water-resistant pad,

and the cavity of bracket. Keep cables enough long outside the

bracket.

3) Use M8 screws to secure bracket to pole bracket base (refer

to Picture 22).

4. Pendent Mount

Decide the mounting position on the ceiling. Take the pendant

bracket base as the template to draw the center positions of

the four mounting holes on the ceiling.

Drill 4 holes on firm ceiling for M6 expansion bolts with heavy-

duty electrical drill. Push M6 expansion bolts into the holes

(refer to Picture 23).

Picture 23

Mounting housing directly into the base: this mode is applicable

to low mounting height. Pull power, RS485 communication and

video cables through the pendant bracket base from the side

concave cut. Leave cables enough long outside the base for

connection with the circuit connecting board. Insert a gland in

the convex cut. Mount the pendant bracket base with 4 nuts to

the 4 expansion bolts on the ceiling. The pendant bracket base

is then installed on the ceiling (refer to Picture 24, 25).

Picture 22

Picture 24

-13-

01:O-ring 02:Pendant Bracket Base

03:Washer(*4) 04:Spring Washer(*4)

05:Nut M6(*4) 06:Wiring

07:Gland

＂

Leave cables enough long

outside the pendant braket

base,suspender and thread

tube assembly.

01:O-ring 01:Pendan t Bracket Base

03:Washer(*4) 04:Spring Washer(*4)

05:Nut M6(*4) 06:Wiring

07:Gland

M4 Mounting Screw

Suspender

＂

15.00

18.00

15.00

18.00

2) Pull power, RS485 communication and video cables in from the

side concave cut and go through the cavity of pendant bracket

base, suspender and thread tube assembly. Leave cables

enough long outside the thread tube for connection with the

circuit connecting board. Insert a gland in the convex cut. Mount

the pendant bracket base with 4 nuts to the 4 expansion bolts

on the ceiling. The pendant bracket base is then installed on the

ceiling (refer to Picture 27).

Picture 25

Mounting housing into the suspender thread tube: when the

installation ceiling is somewhat high above ground, use the

suspender and thread tube to connect speed dome housing.

The speed dome then hangs from a required lower height.

1) Preparation of suspender. factory supplies a 300mm (11.81 ’’)

long suspender. If the length is not applicable, user can pre-

pare a suitable suspender by himself (refer to Picture 26).

Picture 27

Turn the suspender into the pendant bracket base. Secure the

connection with M4 screw (refer to Picture 28).

Picture 26

Picture 28

-14-

M4 Mounting Screw

Unscrew the bolts

and remove the

connection board

M4 Mounting Screw

4) Turn the thread tube (Accessory) into the suspender. Secure

the connection with M4 screw.

2. Pull power, RS485 communication and video cables through the

cavity of the wall bracket. Pull the cables into housing through

the top hole. Turn the housing thread pipe head (G1 1/2’’) into

the wall bracket. Secure the connection with M4 screw (refer

to Picture 31).

Picture 31

Picture 29

For pendant mountЈєW hen the ceiling height is low, turn the

housing screw pipe head (G11/2’’) directly into the pendant

bracket base. Secure the connection with M4 screw (refer to

Picture 32).

Step 2 Install Housing

Take outdoor dome for example:

1. Take out housing from the package. Unscrew the bolts on the

connection board and remove the connection board. (refer to

Picture 30)

Picture 32

Picture 30

M4 Screw

-15-

Notice: Switch the power on after cable connections

are completed. The LED on the circuit connection board

should be lit. If not, refer to troubleshooting sheet for

solutions.

Notice: Be sure that the power has been switched off

before cable connections

M4 Mounting Screw

W hen the ceiling height is high, turn the housing screw pipe

head (G11/2’’) into the screw tube. Secure the connection with

M4 screw (refer to Picture 33).

3. Join connectors to the ends of the cables. Plug the connectors

to the relating sockets on the connection board (refer to Pic-

ture 34,35).

Circuitry Diagram

Fan

Switch

Power

Board

Video

Cable

Video

Cable

Grounded

Picture 34

Picture 35

Plug fan and heater connectors to the connection board (for

outdoor dome only).

Install circuit connection board back onto the connecting bridge

with the two M3 screws. Place the connection board mounting

holes' narrow ends over the two M3 screw heads, secure the

M3 screws)

Picture 33

Join connectors to the end of

the cables, then plug the

connectors to the relating

socket on the connection board.

24AC1

24AC2

485B-

485A+

-16-

Connect the two

ports of the heater.

Attach the leash as the

diagram and secure

with M3 SCREW

The mounting screw

holes

M5 Screws

BaseBoard

( Plate)

Mounting

Hole

Motors

Big Belt Wheel

Step3 Down Cover Preliminary Installation

Attach the loop end of the safety chain into the nail on the

housing and secure it with M3 nuts.

Connect the two ports of the heater (for outdoor dome).(refer

to Picture 36)

Step 4 Pan/Tilt Module Installation

Turn and loosen the two M5 screws on the connecting bridge

inside the housing. Turn only a little more than 3 circles.

Take out the module from package. Check and make sure the

plugs are in sockets, and the screws and nuts are locked. If

not, secure the connections.

DIP switch setting (refer to Appendix Ⅵ).

Hold the stepping motors with both hands. Press the synchro-

nized big and small belt wheels with fingers to prevent them

from turning. There are two mounting screw holes in the mod-

ule baseboard. Attach the mounting screw holes' big ends

over the two screws on the connecting bridge. Rotate the

baseboard until it cannot move. The screws then locate in the

small ends of the mounting screw holes. Tighten the two M5

screws to mount the Pan/Tilt module inside the housing (refer

to Picture 37).

Picture 36

Picture 37

Notice: If the installation is not convenient, change

heater and safety chain connecting positions in the

down cover ring.

Notice: Do not touch the acrylic down cover to avoid

scratches on it.

Notice: Refer to Appendix VI to set baud rate, protocol

and address of dome camera before installation.

-17-

Step5 Power on Inspection

Check and confirm all the wiring and connections are in order.

Switch power on.

The fan should run after powered up (for outdoor dome only).

After powered up, the dome will begin self-testing and conduct

reset procedure. In the procedure, the dome firstly pans to the

default horizontal origin point, then tilts down to the vertical

origin point, and lastly tilts to the vertical 45 °position to com-

plete the self-testing. After the dome stops, it means the cam-

era has completed the self-testing and is ready to receive

control commands.

Step6 Install Down Cover

To avoid scratches, remove dust and contamination on the

acrylic down cover with soft cloth.

Unscrew the two M4 mounting screws on down cover ring.

Apply lubricant (Accessory) evenly on the O-ring in the down

cover.

Align the mounting screw holes in down cover with those in

housing. Push the down cover into the housing.

Put the two mounting screws in the holes. Tighten the screws

to secure the down cover with the housing (refer to Picture

38).

Picture 38

M4 Mounting Screw

-18-

Appendix Ⅰ: Lightning Proof and Surge Signal Proof

The product adopts TVS lightning proof technology to prevent

from damage by lightning strike below 1500 W and impulse

signals such as surge; but it is also necessary to abide by the

following precautions to ensure electrical safety based on

practical circumstances:

Keep the communication cables at least 50 meters away from

high voltage equipment or cables.

Make outdoor cable laying-out under eaves as possible as you

can.

In open area shield cables in steel tube and conduct a single

The system must be grounded with equal potentials. The earth

ground connection must satisfy the anti-interference and elec-

trical safety requirements and must not short circuited with

high voltage electricity net. When the system is grounded

separately, the resistance of down conductor should be ≤ 4

Ω and the sectional area of down conductor should be ≤

25mm

(refer to Picture 39).

Video cable

lightning conductor

Communication

cable lightning

point ground to the tube. Trolley wire is forbidden in such

circumstances.

In strong thunderstorm or high faradic zone (such as high

voltage transformer substation), extra strong lightning proof

equipment must be installed.

Take the building lightning proof requirements into account to

design the lightning proof and grounding of outdoor equipment

and cable laying-out in accordance with the national and in-

dustrial standards.

conductor

Power cable lighting

conductor

. .

Lightning rod

45°

The dome must be

installed within the

45°

angle area

under the

lightning

rod with the vertical

line as the bisector.

The resistance of

down conductor

should be ≤4Ω

Shield Steel tube

Picture 39

Appendix Ⅱ: The Cleaning of Clear Down Cover

To obtain constant clear videos, user should clean the down

cover periodically.

Be cautious when cleaning. Hold the down cover ring only to

avoid direct touch to the acrylic down cover. The acid sweat

mark of fingerprint will corrode the coating of down cover and

scratch on down cover will cause vague images.

Use soft dry cloth or the substitute to clean the inner and outer

surfaces.

For hard contamination, use neutral detergent. Any cleanser

for high grade furniture is applicable.

-19-

3 2 1

JP1

Default Jumper Setting

JP1

Protocol PCB

120Ω

2-3

1-2

Jp1

OFF

120

-3

1-2

120

Appendix Ⅲ: RS485 Bus Basic Knowledge

1. Characteristics of RS485 Bus

As specified by RS485 standards, RS485 Bus is of half-

duplexed data transmission cables with characteristic imped-

ance as 120 Ω. The maximum load capacity is 32 unit loads

(including main controller and controlled equipment).

2. Transmission distances of RS485 Bus

W hen user selects the 0.56mm (24AW G) twisted pair wires

as data transmission cable, the maximum theoretical transmit-

ting distances are as follows:

Baud Rate

Maximum Transmitting Distance

2400BPS

1800m

4800BPS

1200m

9600BPS

800m

If user selects thinner cables, or installs the dome in an envi-

ronment with strong electromagnetic interference, or connects

lots of equipment to the RS485 Bus, the maximum transmitting

distance will be decreased. To increase the maximum transmit-

ting distance, do the contrary.

3. Connection and termination resistor

The RS485 standards require a daisy-chain connection be-

tween the equipment. There must be termination resistors with

120¦ёimpedance at both ends of the connection (refer to Pic-

ture 40).

Please refer to Picture 41 for simple connection. “D”hould not

exceed 7m.

The connection of 120 Ω termination resistor:

The termination resistor is ready on the Protocol PCB. There

are two kinds of connection. Refer to the Protocol PCB jumper

setting form (refer to Picture 42,43).

In the Picture it is the factory default connection. The jumper is

seated on Pin2&Pin3 and the termination resistor is not

connected.

when connecting the 120 Ω temination resistor, user should

pull out the protocol PCB and plug the jumper on Pin1&Pin2.

Install the PCB back and the termination resistor is connected.

Picture 42

1＃ 2＃

3＃

4＃

32＃

A＋

－

A＋

－

Main controller

2 #

31#

Picture 41

Picture 43

-20-

4. Problems in practical connection

In some circumstances user adopts a star configuration in

practical connection. The termination resistors must be con-

nected to the two equipment that are farthest away from each

other, such as equipment 1# and 15# in Picture 44. As the star

In such circumstances the factory recommends the usage of

DR-HB16 RS485 distributor. The distributor can change the

star configuration connection to the mode of connection stipu-

lated in the RS485 standards. The new connection achieves

reliable data transmission (refer to Picture 45).

configuration is not in conformity with the requirements of

RS485 standards, problems such as signal reflections, lower

anti-interference performance arise when the cables are long

in the connection. The reliability of control signals is decreased

with the phenomena that the dome does not respond to or just

responds at intervals to the controller, or does continuous

operation without stop ( refer to Picture 44).

Main

Controller

A+

B-

DR-

HB16

120Ω

Picture 45

16#

32#

15#

5. RS485 Bus Troubleshooting ( refer to following form )

Trouble

Possible Cause

Solution

Dome can do

self-testing

but cannot be

controlled.

The address and baud rate settings of dome are

not

in conformity with those of controller.

2. The ＂+＂and ＂-＂conne ction of RS485 Bus is

incorrect.

3. Wiring is not fully seated.

There is breakage in the middle section of the

RS485 Bus.

Change the address and baud rate of

controller or dome.

Correct the connection.

Make sure the connections are fully seated.

Replace RS485 Bus wires.

The dome can

be controlled

but the

operation is

not

smooth.

1. The RS485 Bus line is not in good contact with the

connectors.

2. One wire of the RS485 Bus is broken.

The dome is very far away from controller.

There are too many domes connected in the

system.

Secure the connection.

Replace RS485 Bus wires.

Add termination resistors to the system.

Install RS485 distributor.

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i3 International PTZ Speed Dome Installation guide

i3 International PTZ Speed Dome Installation guide

i3 International PTZ Speed Dome Installation guide

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