Wavetronix SS225A Users Manual
SmartSensor Matrix
USER GUIDE
www.wavetronix.com 78 East 1700 South Provo, Utah 84606 801.734.7200
© 2013 Wavetronix LLC. All Rights Reserved.
Wavetronix, SmartSensor, Click, Command, and all associated product names and logos are trademarks of Wavetronix LLC. All other
products or brand names as they appear are trademarks or registered trademarks of their respective holders.
Protected by US Patent Nos. 6,556,916; 6,693,557; 7,426,450; 7,427,930; 7,573,400; 7,889,097; 7,889,098; 7,924,170; 7,991,542;
8,248,272; Canadian Patent Nos. 2461411; 2434756; 2512689; and European Patent Nos. 1435036; 1438702; 1611458. Other US
and international patents pending.
e Company shall not be liable for any errors contained herein or for any damages arising out of or related to this document or the
information contained therein, even if the Company has been advised of the possibility of such damages.
is document is intended for informational and instructional purposes only. e Company reserves the right to make changes in the
specications and other information contained in this document without prior notication.
FCC Part 15 Compliance: e Wavetronix SmartSensor sensors comply with Part 15 of the Federal Communications Commission
(FCC) rules which state that operation is subject to the following two conditions: (1) this device may not cause harmful interference,
and (2) this device must accept any interference received, including interference that may cause undesirable operation. FCC compliance statements for applicable optional modules are to be found in the module specications. Unauthorized changes or modications
not expressly approved by the party responsible for compliance with the FCC rules could void the user’s authority to operate this
equipment.
Disclaimer: e advertised detection accuracy of the Wavetronix SmartSensor sensors is based on both external and internal testing, as
outlined in each product’s specication document. Although our sensors are very accurate by industry standards, like all other sensor
manufacturers we cannot guarantee perfection or assure that no errors will ever occur in any particular applications of our technology.
erefore, beyond the express Limited Warranty that accompanies each sensor sold by the company, we oer no additional representations, warranties, guarantees or remedies to our customers. It is recommended that purchasers and integrators evaluate the accuracy of
each sensor to determine the acceptable margin of error for each application within their particular system(s).
WX-500-0053
1/2013
Contents
Introduction 5
SmartSensor Matrix Package 6 • Selecting a Mounting Location 7
Part I Installing the SmartSensor Matrix
Chapter 1 Installing the SmartSensor Matrix 13
Sensor Mounting Guidelines 14 • Attaching the Mount
Bracket to the Pole 15 • Attaching the Sensor to the Mount
Bracket 16 • Aligning the Sensor to the Roadway 16 • Applying the Silicon Dielectric Compound 18 • Connecting the
SmartSensor 6-conductor Cable 18 • Grounding the Sensor
19
Chapter 2 Connecting Power and Surge Protection 21
Mounting the Backplate 22 • Connecting AC Power 22 •
Providing System Surge Protection 26 • Terminating Smart-
Sensor 6-conductor Cables 28
Chapter 3 Contact Closure Communication 31
Using the Click 112/114 DIP Switches 32 • Using the Click
104 Rotary Switch 34 • Attaching and Programming the
Click 112/114 35 • Attaching and Programming the Click
104 37 • Channel Mapping 39
Part II Using SmartSensor Manager Matrix
Chapter 4 Installing SmartSensor Manager Matrix 45
Installing SSMM 47 • Microsoft .NET Framework 49
Chapter 5 Communication 51
Serial Connection 53 • Internet Connection 56 • Virtual
Connection 58 • Viewing Connection Information 60 • Up-
grading the Sensor’s Embedded Software 62
Chapter 6 Sensor Settings 65
General Sensor Settings 65 • Sensor Info Screen 67
Chapter 7 Lanes & Stop Bars 69
Display Options 70 • Menu Bar 73 • Automatic Conguration 76 • Manual Conguration 77
Chapter 8 Zones & Channels 81
Menu Bar 82 • Placing Zones 83 • Channel Type 84 • Mapping Zones to Channels 86 • Measuring Zones 89
Chapter 9 Verification 91
Channel Indicators 92 • Verication Menu Bar 93
Chapter 10 Tools 95
Backup/Restore 96 • Rack Cards Tools 97 • Sensor Self Tests
101
Appendix 103
Appendix A – Cable Connector Denitions 103 • Appendix
B – Cable Lengths 105 • Appendix C – Click 221 User Reference Guide 106 • Appendix D – Click 600 Installation 107
• Appendix E – Matrix Extended Range 111
Introduction
In this chapter
SmartSensor Matrix Package
Selecting a Mounting Location
e Wavetronix SmartSensor Matrix™ is a stop bar presence detector designed for use at
signalized intersections (see Figure I.1). e SmartSensor Matrix detects vehicles through
the use of a 24.125 GHz (K band) operating radio frequency. Using what is classied as
frequency modulated continuous wave (FMCW) radar, SmartSensor Matrix detects and
reports vehicle presence in as many as 10 lanes simultaneously.
Figure I.1 – Wavetronix SmartSensor Matrix
SmartSensor Matrix is a rst-of-its-kind radar stop bar detector with Radar Vision™. It
delivers the reliability of radar and the simplicity of non-intrusive detection for stop bar
presence detection. In many situations, the sensor is installed on the roadside in order to
prevent the need for lane closures and trac control. Once the unit is installed, the congu-
6 INTRODUCTION SMARTSENSOR MATRIX USER GUIDE
ration process is quick and easy. After installation, the sensor will require little or no on-site
maintenance and can be remotely congured.
is user guide outlines the step-by-step process of installing and conguring the SmartSensor Matrix. Any questions about the information in this guide should be directed to
Wavetronix or your distributor.
SmartSensor Matrix Package
A standard SmartSensor Matrix package may contain the following items:
SmartSensor Matrix SS225 detector(s) with installed sensor backplate
Sensor mounting kit(s)
SmartSensor 6-conductor cable(s)
Intersection preassembled backplate
Click 112/114 detector rack card(s) with patch cable(s)
Click 104 four-channel DIN rail contact closure module
SmartSensor Manager Matrix (SSMM) software
SmartSensor Matrix User Guide
Note
Instead of the intersection preassembled backplate, you may be using the Click 600
cabinet interface device, the preassembled 19-inch rack, or the segmented preassembled backplate. The coming chapters will note installation dierences between
these devices and the preassembled backplates where applicable.
SmartSensor Matrix system options include (see Figure I.2):
AC power conversion – Provides reliable power for the sensors and backplate com-
ponents. is option is normally recommended instead of the DC surge protection
because it will not burden the existing DC power modules.
Remote IP connection – Provides a way (via a Click 301 serial to Ethernet converter)
to connect to the sensor from a remote location. e Click 301 is recommended for
remote management.
INTRODUCTION SMARTSENSOR MATRIX USER GUIDE 7
Control Bridge to Rack Cards
Configuration Toolkit
AC Power
Conversion
Option
Control Bridge
on T-bus
(attach to T-bus)
Control Bridge to Sensors
Figure I.2 – SmartSensor Matrix System Options
Remote IP Connection Option
(attach to T-bus)
Note
SmartSensor Matrix systems provide a control bridge to manage all connected
SmartSensor and Click devices. The control bridge is completely separate from the
dedicated channels used for communication of contact closure detection calls in real
time.
Selecting a Mounting Location
Consider the following guidelines when selecting a mounting location for each SmartSensor Matrix:
Corner radar – e SmartSensor Matrix is a corner radar device with a panoramic
90°, 140-ft. (42.7-m) view (see Figure I.3). e sensor’s mounting location should
be selected so that all stop bar detection zones on an approach are within a 6–140-ft.
(1.8–42.7-m) radial distance.
8 INTRODUCTION SMARTSENSOR MATRIX USER GUIDE
140 ft
Sensor Pole
Figure I.3 – Corner Radar
140 ft
Line of sight – Position the sensor so that it will be able to detect the entire area
of interest. Avoid occlusion by installing the sensor away from trees, signs and other
roadside structures.
Detection coverage – Position the sensor so that it will be able to reach all the specied
stop bar detection zones. e sensor will often work better if you position it so that it
tracks vehicles for several feet before the rst zone in each lane. If the sensor has a view
several feet beyond the stop bar, it is more likely to accurately detect queue dissipation.
Closest roadside – Mount the sensor on the side of the road closest to the lanes of
primary interest. Always mount the sensor high enough to prevent trac from occluding approaching vehicles.
Mounting height – A minimum height of 12 ft. (3.6 m) is recommended. Mounting
the sensor higher will generally improve line of sight and decrease the possibility of
occlusion.
Mounting oset – A minimum oset of 6 ft. (1.8 m) to the rst lane of interest is
required.
Redundant detection – It is possible to have multiple sensors monitoring the same
approach. Multiple sensors are needed when zones are spread over more than 140 ft.
(42.7 m).
Sensor proximity – When multiple sensors are mounted at the same intersection,
interference can be avoided by conguring each sensor to operate on a unique RF
channel.
Departing lanes – ere is usually no need to view trac in departing lanes or to
congure departing lanes. However, if they are congured, then the stop bar should
not be congured.
Suspended electrical cables – e sensor is designed to work in the presence of sus-
pended power lines and other electrical cables. However, these cables should be at least
10 ft. (3 m) away from the front of the sensor.
Neighboring structures and parallel walls – e sensor should not be mounted with
INTRODUCTION SMARTSENSOR MATRIX USER GUIDE 9
signs or other at surfaces directly behind it. is will help reduce multiple reection
paths from a single vehicle.
Cable length – Make sure that you have sucient homerun and sensor cabling. Cable
runs as long as 500 ft. (152.4 m) can be achieved using 24 VDC operation and the
system’s native RS-485 communications. If your application requires a cable length
longer than 500 ft. (152.4 m), contact Wavetronix Technical Services for assistance.
e SmartSensor Matrix should be mounted using one of the following options (see Figure
I.4):
➋
1 The back side of mast arm – is location allows the sensor to be placed near the lanes
of interest and may be the best location option for wide approaches. If you mount the
sensor on the back side of a mast arm, mount it near the end of the arm to reduce the
possibility of the mast arm or departing trac occluding approaching vehicles.
2 The far side of approach – e sensor is usually mounted on a corner vertical mast
pole or strain pole. If the sensor is mounted on a vertical pole with a mast arm, you
can usually avoid occlusion by mounting the sensor away from or below the mast arm.
3 The near side of approach – is mounting location is typically best if detecting the
left turn lane is less important. is location also allows you to mount the sensor high
enough to avoid occlusion.
Other mounting locations may be possible if these are not available at your intersection.
Contact Wavetronix Technical Services for assistance if you would like to use an alternative
mounting location.
➊
➌
Figure I.4 – Mounting locations
Part I
Installing the SmartSensor
Matrix
Chapter 1 – Installing the SmartSensor Matrix
Chapter 2 – Connecting Power and Surge Protection
Chapter 3 – Contact Closure Communication
Installing the SmartSensor Matrix 1
In this chapter
Sensor Mounting Guidelines
Attaching the Mount Bracket to the Pole
Attaching the Sensor to the Mount Bracket
Aligning the Sensor to the Roadway
Applying the Silicon Dielectric Compound
Connecting the SmartSensor 6-conductor Cable
Grounding the Sensor
1
e installation process includes attaching the mounting bracket to the pole; attaching the
sensor to the mounting bracket; aligning the sensor; applying a silicon dielectric compound
to the sensor connector; and connecting the SmartSensor 6-conductor cable to the sensor.
Caution
Do not attempt to service or repair this unit. This unit does not contain any components and/or parts serviceable in the field. Any attempt to open this unit, except
as expressly written and directed by Wavetronix, will void the customer warranty.
Wavetronix is not liable for any bodily harm or damage caused if service is attempted
or if the back cover of the SmartSensor unit is opened. Refer all service questions to
Wavetronix or an authorized distributor.
14 CHAPTER 1 INSTALLING THE SMARTSENSOR MATRIX
Warning
Use caution when installing any sensor on or around active roadways. Serious injury
can result when installation is performed using methods that are not in accordance
with authorized local safety policy and procedures. Always maintain an appropriate
awareness of the trac conditions and safety procedures as they relate to specific
locations and installations.
Sensor Mounting Guidelines
e sensor is fairly insensitive to mounting height, but every site will vary based on lane
conguration and the presence of barriers and structures in and around the detection area.
e following table will help you determine how high to mount the sensor (see Table 1.1).
ese gures are only suggestions, but a good rule to follow is—the farther away the rst
lane is to the sensor, the higher you will want to mount the sensor to avoid occlusion.
Closest Lane Sensor Height
6–15 feet 12–25 feet
15–50 feet 15–25 feet
> 50 feet 25–60 feet
Table 1.1 – Suggested Mounting Guidelines
Note
In certain conditions, lanes that have stop bars or detection zones placed at extended
range may show some loss in performance, even with a proper mounting height. This
is more apparent at locations with many travel lanes or where detection zones are
placed near the far edges of detection. If you have any questions regarding the use
of SmartSensor Matrix at a particular location, please contact Wavetronix Technical
Services or your authorized Wavetronix dealer for more information.
Use the following guidelines to determine the best mounting height, then place your sensor
accordingly:
In general, the sensor should be placed at a height of roughly 20 ft. (6.1 m), give or
take 5 ft. (±1.5 m).
e maximum recommended mounting height for the SmartSensor Matrix is 60 ft.
(18.2 m). e minimum is 12 ft. (3.6 m). Placing the sensor above or below these limits
will adversely aect detection accuracy.
CHAPTER 1 INSTALLING THE SMARTSENSOR MATRIX 15
Take into consideration the sensor’s eld of view, which reaches 140 ft. (42.7 m) from
the sensor. Place the sensor so that the eld of view covers all the areas of interest.
e mast arm is frequently a good place to mount the sensor.
e mounting position should have a clear view of the detection area. Poles, mast arms,
signal heads, or other objects should not block the view of the detection area.
Placing the sensor higher will result in less occlusion. Placing it lower could result in
more occlusion. However, if the nearest detection area is less than about 20 ft. (6.1 m)
away, the sensor may perform better with a lower mounting position.
Note
It is possible to mount the sensor lower than 12 ft. (3 m) in some scenarios. The sen-
sor will continue to detect vehicles at lower heights, but missed detections due to
occlusion may become more prevalent or problematic in lanes that are farther away
from the sensor.
Attaching the Mount Bracket to the Pole
Before attaching the mount bracket to the pole, rst make sure that your cables are long enough
to reach the sensor height and to stretch across the distance from the sensor to the cabinet.
Follow the steps below to correctly attach the mount to the pole:
1 Insert the stainless steel straps through the slots in the mount bracket.
2 Position the mount on the pole so that the head of the mount is pointing toward the
lanes of interest at about a 45° angle.
3 Tighten the strap screws.
Figure 1.1 – Attach the Mount Bracket to the Pole
e sensor double-swivel mount may need to be adjusted later to ne-tune the alignment.
16 CHAPTER 1 INSTALLING THE SMARTSENSOR MATRIX
One swivel joint is used to pan the sensor eld of view left or right and the other swivel
joint is used to tilt the sensor down towards the roadway. If you are not using the double
swivel-mount, make sure the pole straps are adjustable at this point in the installation
process.
Attaching the Sensor to the Mount Bracket
Use the following steps to securely fasten the sensor to the mount bracket:
1 Align the bolts on the sensor’s backplate with the holes in the mount bracket. e
eight-pin connector receptacle on the bottom of the sensor should be pointing towards
the ground.
2 Place the lock washers onto the bolts after the bolts are in the mount bracket holes.
3 read on the nuts and tighten (see Figure 1.2)
Figure 1.2 – Attach the Sensor to the Mount Bracket
Caution
Do not over-tighten the fasteners.
Aligning the Sensor to the Roadway
e sensor’s beams fan out 45° to the left and 45° to the right, creating a 90° corner radar
eld of view. In most applications, you will want to position the corner radar so that its 90°
footprint covers all lanes approaching the stop bar (see Figure 1.3).
CHAPTER 1 INSTALLING THE SMARTSENSOR MATRIX 17
45°
45°
Edge of first lane of interest
Pan sensor
towards stop bar
Figure 1.3 – Corner Radar Field of View Position
Stop Bar
To visualize the extent of the sensor eld of view, the 90° eld of view is imprinted on the
top and bottom of the sensor case. If more of a visual indicator is needed, then a square
framing tool (e.g. rafter square) or other tool with a right angle can be held above the
sensor. By looking down both edges of the tool, you can visualize the extent of the radar’s
coverage.
Usually the front edge of the sensor’s eld of view is aligned to provide coverage beyond
the stop bar (see Figure 1.4). is allows you to place detection zones beyond the stop bar
to detect those vehicles that do not stop at or behind the stop line and will also allow the
sensor to see vehicles exiting queues. If the sensor pole is upstream from the stop bar, it is
recommended to pan in the direction of the stop bar.
Front edge of field of view
Figure 1.4 – Sensor Aligned by Rotating Towards the Stop Bar
Use the following steps to correctly align the SmartSensor Matrix:
18 CHAPTER 1 INSTALLING THE SMARTSENSOR MATRIX
1 Adjust the side-to-side angle so that the front edge of the eld of view provides a view
downstream of the stop bar.
2 Tilt the sensor down so it is aimed at the center of the lanes of interest.
3 If necessary, rotate the sensor so that the bottom edge of the sensor is parallel with
the roadway. is is necessary where the intersection approach has a signicant grade.
Note
To fully complete sensor alignment, you will need to connect to the Matrix sensor
using SmartSensor Manager Matrix and verify that your alignment is detecting the
vehicles in the lanes of interest (see Chapter 8).
Applying the Silicon Dielectric Compound
Use the following steps to correctly apply the silicon dielectric compound to the cable connector:
1 Tear the tab o of the tube of silicon dielectric compound.
2 Squeeze about 25% of the silicon onto the pins of the receptacle side of the connector
at the base of the SmartSensor Matrix (see Figure 1.5). Be sure to wipe o any excess
compound.
Figure 1.5 – Connector Receptacle (left) and Grounding Lug (right)
Connecting the SmartSensor 6-conductor Cable
e next step is to plug the SmartSensor 6-conductor cable into the connector. e sensor
connector is keyed to ensure proper connection (see Figure 1.6); simply twist the plug end
of the connector clockwise until you hear it click into place. To avoid undue movement
from the wind, strap the 6-conductor cable to the pole or run it through a conduit, but leave
a small amount of slack at the top of the cable to reduce cable strain. Route the cable from
the sensor location back to the main trac cabinet.
CHAPTER 1 INSTALLING THE SMARTSENSOR MATRIX 19
Figure 1.6 – Sensor 6-conductor Cable Connector
To set up your network in an orderly fashion, it is recommended that labeling be used on
the service end of each SmartSensor 6-conductor cable. A convenient way to label the
cables is to mark the last seven digits of the serial number on each sensor and the direction
of trac monitored (see Figure 1.7).
Figure 1.7 – Service End Labeling
Grounding the Sensor
e SmartSensor Matrix must now be grounded:
1 Connect a grounding wire to the grounding lug on the bottom of the sensor (see
Figure 1.5).
2 Connect the other end of the grounding wire to the earth ground for the pole that
the sensor is mounted on. Do not attempt to run the grounding wire back to the main
trac cabinet.
Connecting Power and
Surge Protection 2
In this chapter
Mounting the Backplate
Connecting AC Power
Providing System Surge Protection
Terminating SmartSensor 6-conductor Cables
2
After installation, each SmartSensor Matrix will need to be integrated into the main trafc cabinet for power and surge protection. is chapter contains information on how to
provide power and surge protection to a preassembled backplate that accommodates four
SmartSensor Matrix sensors (one for each stop bar of a common four-approach intersection).
Note
Also available to use are the intersection preassembled 19-inch rack for server racks,
the intersection segmented preassembled backplate for easier installation in trac
cabinets, and the Click 600 cabinet interface device (which combines all the function-
ality of the backplates in one module). Installation procedures for the rack and the
segmented backplate will be very similar to the instructions that follow; installation
procedures for the Click 600 can be found in Appendix D of this guide.
e standard four-approach preassembled backplate is 11 in. (28 cm) wide and 11.5 in.
(29.2 cm) high. All wiring on the rack and backplates is done using stranded wires with
wire ferrules for screw terminal connections (see Figure 2.1).
22 CHAPTER 2 CONNECTING POWER AND SURGE PROTECTION
Figure 2.1 – Intersection Preassembled Backplate
Mounting the Backplate
Use the following steps to mount the backplate in the trac cabinet:
1 Locate the area planned for mounting the backplate. e backplate can usually be
mounted on the side panel of a NEMA-style cabinet.
2 Attach the backplate with the U-channel mounting screws.
Note
If you have a 330 series (170/2070 style cabinet) with a 19-inch EIA rack, please contact Wavetronix Technical Services for assistance. Wavetronix can provide modified
backplates that attach to a 19-inch rack.
Connecting AC Power
Since SmartSensor Matrix operates on 10–28 VDC, the standard preassembled backplates
provide an AC power conversion option. e backplate includes an AC to DC power converter, power surge and circuit breaker.
CHAPTER 2 CONNECTING POWER AND SURGE PROTECTION 23
Warning
Make sure power to AC mains is disconnected while wiring the AC input. If your in-
stallation does not require AC power, you will need to use surplus DC power inside
the trac cabinet. In this case, Wavetronix recommends you use the Click 221 (8 A
DC surge protector) to protect the backplate and SmartSensor Matrix units from DC
surges. See Appendix C for information regarding the Click 221.
Figure 2.2 – Connecting AC Power to the Preassembled Backplate
Use the following steps to connect power to the AC terminal block on the bottom DIN
rail (see Figure 2.2):
1 Connect a neutral wire (usually a white wire) to the bottom side of the terminal block
labeled “N” for neutral.
2 Connect a ground wire (usually a green wire) to the bottom of the terminal block la-
beled “G” for ground. (see the Wiring Protective Earth Ground section below).
3 Connect a line wire (usually a black wire) to the bottom of the terminal block labeled
“L” for line.
4 Turn on AC mains power.
5 Press the circuit breaker switch on the left side of the top DIN rail to switch power to
the backplate. e switch is on if the button is below the level of the device housing;
the switch is o if the button is raised above the surface of the housing.
6 Verify that DC power is properly regulated by making sure the DC OK LEDs are il-
luminated on the Click 201/202/204.
24 CHAPTER 2 CONNECTING POWER AND SURGE PROTECTION
Caution
An authorized electrical technician should install the preassembled backplate. Persons other than authorized and approved electrical technicians should NOT attempt
to connect the backplate to a power supply and/or trac control cabinet, as there is a
serious risk of electrical shock through unsafe handling of the power source. Extreme
caution should be used when connecting the backplate to an active power supply.
e AC power conversion section of the backplate will come pre-wired as shown in Figure
2.3. e main three components of the AC power conversion section include:
Click 201/202/204 AC to DC converter – A Click 201 provides 1 A of power and is
capable of powering a single sensor; a Click 202 provides 2 A and can power two sensors; a Click 204 provides 4 A and can power four sensors.
Click 210 circuit breaker – Interrupts power during overload conditions and provides
a convenient way to turn power on and o for the entire system.
Click 230 AC surge protector – Helps protect equipment from current surges on the
power lines.
Figure 2.3 – AC Power Conversion
Wiring Protective Earth Ground
All connections are surge protected when the protective earth ground is wired to the PE
terminal block on the backplate. Normally, the backplate should be mounted to the chassis
of the cabinet to provide a ground path. It is strongly recommended that you provide a low
impedance protective earth connection.
CHAPTER 2 CONNECTING POWER AND SURGE PROTECTION 25
Follow the steps below to provide a low impedance protective earth connection:
1 Connect one end of a protective earth ground wire to the bottom of the PE terminal
block. A 10 AWG stranded wire is recommended for protective earth ground connec-
tions and is also the largest that will t in the terminal block.
2 Connect the other end of the protective earth ground wire to a protective earth screw
terminal within the main trac cabinet.
Controlling DC Power Distribution
e Click 210 circuit breakers provide a convenient way to turn power on or o for each
sensor independently (see Figure 2.4). To enable or disable DC power to the backplate,
switch the main circuit breaker (left side of upper DIN rail); to enable or disable DC power
to an individual sensor, switch the individual circuit breaker (left side of each sensor’s set
of terminal blocks).
Push this
button to
turn power
on or o
Figure 2.4 – DC Power Distribution
Note
The switch is ON when the switch button is level with the device housing; the switch
is OFF when the switch button is raised above the housing.
e four-approach preassembled backplate has 24 VDC power wired from the output of
the AC to DC converter into a 5-position screw terminal on the left side of the T-bus (see
Figure 2.5). e green T-bus conducts DC power and RS-485 communications from the
left to the right side of the modules; the gray T-bus conducts only DC power from the left
to the right side of the modules.
26 CHAPTER 2 CONNECTING POWER AND SURGE PROTECTION
+24V DC
-DC
+RS-485
-RS-485
GND
red wire
( )
black wire
( )
Figure 2.5 – T-bus Pinout Diagram
Power
Green GreenGray
RS-485
Providing System Surge Protection
e Click 222 system surge protector is designed to prevent electrical surges conducted
along underground cables from damaging the cabinet equipment (see Figure 2.6).
Figure 2.6 – Click 222 Faceplate
Note
The SmartSensor Matrix has built-in surge protection and so there is no need to use
a pole-mount box for surge protection on the sensor side of the cable. However, it is
strongly recommended that the sensor be connected to a surge protection device in
the main trac cabinet. If you choose not to use surge protection in your main trac
cabinet, please contact Wavetronix Technical Services for assistance.
When a Click 222 is present, the power and RS-485 serial connections on the T-bus and
faceplate are protected from surges on the incoming SmartSensor 6-conductor cables.
e Click 222 faceplate has four activity indicator LEDs:
PWR – Indicates that the device has power.
DC Surge OK – Indicates that DC surge protection is operational.
CHAPTER 2 CONNECTING POWER AND SURGE PROTECTION 27
TD – Indicates when data is transmitted over the T-bus or over the control bridge. is
LED does not indicate data transmitted on the A or B ports.
RD – Indicates when data is received over the T-bus or over the control bridge. is
LED does not indicate data received on the A or B ports.
Note
If the DC Surge OK LED is not on when the Click 222 is powered, call Wavetronix Technical Services for assistance.
e Click 222 provides the following three independent serial connections:
Topmost jack: control bridge
Middle jack: dedicated communications for sensor 2 detection calls
Lowest jack: dedicated communications for sensor 1 detection calls
e control bridge enables a multi-drop shared communication bus between all sensors
connected to the backplate. is allows control of all SmartSensor Matrix sensors, rack
cards and other connected Click devices. e remaining two serial connection ports provide
communications to only one sensor each, as outlined above.
On a four-sensor preassembled backplate (see Figure 2.7):
e sensor wired into the left-most terminal blocks will be connected to ports A and
C on the Click 222 on the left. Port A is for detection calls and port C is connected
to the control bridge.
e sensor wired to the second set of terminal blocks will be wired to ports B and D
on the Click 222 on the left. Port B is for detection calls and port D is connected to
the control bridge.
e sensor wired to the third set of terminal block from the left will be wired to ports
A and C on the Click 222 on the right.
e sensor wired to the right-most terminal block will be wired to ports B and D on
the Click 222 on the right.
28 CHAPTER 2 CONNECTING POWER AND SURGE PROTECTION
Port A & Port C Port B & Port D Port A & Port C Port B & Port D
x
x
x
x
x
OUT
x
PWR
GND
485+
485-
485+
x
x
x
x
x
x
x
OUT
SSMatrix #2
DRN
485-
x
PWR
GND
485+
485-
485+
x
x
x
DRN
485-
x
x
x
x
x
OUT
SSMatrix #3
PWR
x
GND
485+
485-
485+
485-
x
x
x
DRN
x
OUT
SSMatrix #4
PWR
GND
x
x
x
x
x
DRN
485+
485-
485+
485-
IN
x
x
x
x
x
x
IN
x
x
x
x
x
x
x
x
IN
x
x
x
x
x
x
x
x
IN
x
x
x
x
x
x
x
x
x
x
Figure 2.7 – Click 222 Ports A, B, C and D
Terminating SmartSensor 6-conductor Cables
e SmartSensor Matrix will receive power once each SmartSensor 6-conductor cable is
correctly landed into the plug-in terminals on the backplate (see Figure 2.8 and Table 2.1).
Each 6-conductor cable has one DC power wire pair, two RS-485 communication pairs,
and a drain wire. e service end of the cable connects to plug-in terminals on the preassembled backplate (see Figure 2.8).
Figure 2.8 – Color Label on Plug-in Terminals
CHAPTER 2 CONNECTING POWER AND SURGE PROTECTION 29
Note
Do not strip the service end of the cable until after it has been routed through conduit. The cable should be one continuous run without any splices.
Use the steps below to land the sensor cables:
1 After routing your SmartSensor 6-conductor cable into the cabinet, carefully strip
back the cable jacket and shielding on the service end of the cable.
2 Open the insulation displacement connectors on the plug by inserting a small screw-
driver into each square slot and rocking it back.
3 Insert the wire leads into the bottom side of the plug-in terminal according to the
color code shown in Table 2.1 and Figure 2.8. Make sure the wires are completely
inserted in the terminal.
4 Close the insulation displacement connector by reinserting the screwdriver into the
square slot and rocking it forward. e plug-in terminals will automatically complete
the electrical connection. ere is no need to manually strip the insulation on the end
of each wire.
ere are two measures in place to ensure that the plugs are always returned to their correct
terminal block sections.
First, for visual conrmation, one part of the plug is blue (see Figure 2.8) and must be
visually matched up to a blue terminal block. e location of the blue piece rotates in the
dierent plugs and terminal block sections: in the rst, the rst block is blue, in the second,
the second is blue, etc.
Second, the plugs are keyed (see the blue piece in Figure 2.8) so they will only t into their
correct terminal block sections.
Wire Color Signal
Red (PWR) DC+
Black (GND) DC-
White with Blue stripe (485+) Control bridge 485+ (port1)
Blue (485-) Control bridge 485 - (port 1)
White with Orange stripe (485+) Data bus 485+ (port 2)
Orange (485-) Data bus 485- (port 2)
Bare metal (DRN) Drain
Table 2.1 – Cable Wiring Color Code
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