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SmartSensor 105 User Guide – Wavetronix LLC 

9/20/07

 

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35

Appendix G – Cable Lengths 

The following recommendations allow the user to provide reliable power to the 
SmartSensor.  The SmartSensor cable’s red and black wires provide a 20 AWG wire pair.  
The other pairs on the SmartSensor cable are 22 AWG and are normally used for 
communication. 
 

Gauge

Pairs

24 V

12 V

20 AWG

1-Pair

600 ft

110 ft

Additional 22 AWG

Each Pair

Add 400 ft

 Add 75 ft

22 AWG

1st Pair

400 ft

75 ft

Additional 22 AWG

Each Pair

Add 400 ft

 Add 75 ft

14 AWG

1-Pair

2500 ft

450 ft

12 AWG

1-Pair

3900 ft

700 ft

10 AWG

1-Pair

6000 ft

1050 ft

8 AWG

1-Pair

9900 ft

1750 ft

6 AWG

1-Pair

14,000 ft

2500 ft

Alternate Power Cables

Power

Cable

SmartSensor Cable

Old SmartSensor Cable

 

Table 8 - Maximum Cable Length for Power (ft) 

 
If the cable length is longer than 600 feet when operating at 24 V, it is possible to 
increase the maximum cable length by wiring a pair of lines normally used for RS-232 
communications with the red and black wires.   
 
If the cable length is 200 feet or greater you cannot reliably use RS-232 communications.  
To add 400 feet and achieve a maximum cable length of 1000 feet, connect the orange 
wire (normally RTS) to the red wire and the brown wire (normally CTS) to the black 
wire. 
 
If your cable run is longer than 1000 feet, it is possible to sacrifice additional 
communication pairs to increase the maximum cable length for power.  However, you 
may desire to communicate to the sensor over two independent channels, in which case 
you will need to consider an alternate cable for power.  The AWG for wire pairs that 
achieve a 2000 ft maximum cable length or greater at 12 and 24 V are listed in Table 8. 
 
To achieve reliable wired communications, the selected baud rate must be compatible 
with the length of the cable run.  The table below shows the cable length 
recommendations for wired communications (see Table 9):   
 

115.2

57.6

38.4

19.2

9.6

RS-485

300 ft

600 ft

800 ft

1000 ft

2000 ft

RS-232

40 ft

60 ft

100 ft

140 ft

200 ft

Baud Rate (Kbps)

 

Table 9 - Maximum Cable Length for Wired Communications (ft) 

 
To provide two independent communication channels with a homerun cable length over 
200 ft, convert the RS-232 data into RS-485 using a Click! 304 in a pole-mount cabinet 

Summary of Contents for SMARTSENSOR 105

Page 1: ...ar are trademarks or registered trademarks of their respective holders Protected by U S Patent Nos 6 556 916 and 6 693 557 Other U S and international patents pending The Company shall not be liable f...

Page 2: ...Mounting Bracket 8 4 Aligning the SmartSensor 8 5 Connecting the SmartSensor Cable to SmartSensor 9 6 Connecting SmartSensor to Power and Communication Devices 10 7 Configuring SmartSensor with SmartS...

Page 3: ...ing and maintenance instructions FCC Part 15 Compliance This device complies with Part 15 of the Federal Communications Commission FCC rules which states that operation is subject to the following two...

Page 4: ...n 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...

Page 5: ...onfigurations Any questions about the information in this guide should be directed to Wavetronix or your distributor Unpacking the Sensor A typical sensor package contains the following items 10 525 G...

Page 6: ...a properly mounted SmartSensor 1 Attaching the Mounting Bracket to the Pole 1 Measure the offset from the first detection lane to the pole as demonstrated in Figure 1 above 2 Look up the recommended...

Page 7: ...SmartSensor 105 User Guide Wavetronix LLC 9 20 07 7 Table 1 Mounting Height Guidelines...

Page 8: ...g the SmartSensor to the Mounting Bracket 1 Align the bolts on the back of the SmartSensor with the holes in the mounting bracket The large 25 pin connector on the SmartSensor should be pointing towar...

Page 9: ...necting the SmartSensor Cable to SmartSensor Figure 4 Attached Cable 1 Attach the cable connector to the 25 pin connector at the base of the SmartSensor as shown in Figure 4 The SmartSensor connector...

Page 10: ...please refer to the user manuals for those products Connecting SmartSensor to a Surge Protection Device It is strongly recommended that the SmartSensor be connected to a surge protection device The W...

Page 11: ...vice on the same pole as the protected sensor and mount another Click 200 in the cabinet 3 A single unspliced shielded cable must be kept as short as possible and run between two Click 200 modules and...

Page 12: ...SmartSensor 105 User Guide Wavetronix LLC 9 20 07 12 Figure 6 Long Distance Cable Run...

Page 13: ...middle four terminals are for RS 485 communication and consist of a 485 connection a 485 connection and two connections for ground One of the ground connections is used as ground for RS 232 communica...

Page 14: ...r SmartSensor can be connected to a personal computer for on site configuration it can also be remotely configured via wired or wireless modems and Ethernet These connection options are described in d...

Page 15: ...Once the Lane Configuration page opens click on the button labeled Restart and when prompted confirm the configuration restart by clicking Yes SmartSensor Manager will automatically begin detecting a...

Page 16: ...the Manual button the buttons in the toolbar on the right of the screen will change from gray to black see Figure 8 2 The newly activated buttons will remain pressed when you click them To change the...

Page 17: ...t mouse button and move the line up or down on the screen but only within the area between the shoulders Paint and Remove Lines The Paint Lines button allows you to add new lanes by inserting lane div...

Page 18: ...an is essentially the act of dividing a single road into two separate roads SmartSensor Manager defines a barrier or median as two adjacent shoulder lines or two shoulder lines with only background kh...

Page 19: ...irection of that lane Figure 10 Reversing Direction Click the left mouse button and the tiny arrow will reverse direction to verify the change has occurred see Figure 10 Using the Reverse Direction bu...

Page 20: ...on the Data Collection tab Saving the Configuration Figure 12 Update Undo and Restart Buttons Once all manual configurations are completed the changes must be updated in the SmartSensor s flash memor...

Page 21: ...by clicking on the Automatic button and then clicking on the Restart button located near the Update and Undo buttons below the Manual toolbar see Figure 12 This erases all manual changes that have be...

Page 22: ...SmartSensor 105 User Guide Wavetronix LLC 9 20 07 22 Figure 14 Lane Configuration Page in Manual Mode Figure 15 Traffic Event Data View Mode...

Page 23: ...ces between these two modes Configuration Summary After completing the steps listed above and having read over some of the configuration basics the SmartSensor should now be installed and configured c...

Page 24: ...tion Range 60 m 197 ft Measured Quantities Speed occupancy volume presence Communications RS 232 and RS 485 connection Power 7 5 watts 10 30 VDC Weight Less than 5 lbs Or 2 27 kg Physical Dimensions 3...

Page 25: ...rounded by a shield The following table details the pin out of the cable and the appropriate connection inside the cabinet for each wire Table 3 SmartSensor Cable and Cabinet Connection See Figure 16...

Page 26: ...SmartSensor 105 User Guide Wavetronix LLC 9 20 07 26 Figure 16 SmartSensor SS105 Plug Connector Socket Assignment as seen from the solder cup side of the connector...

Page 27: ...following guidelines for connecting the SmartSensor cable to the serial connection on a PC or modem when not using a Click 200 NOTE The RS 232 pin outs remain the same on the SmartSensor cable regard...

Page 28: ...SmartSensor 105 User Guide Wavetronix LLC 9 20 07 28 Figure 18 Connecting a Modem to the SmartSensor Figure 19 Rear view of RS 232 DB9 serial connector...

Page 29: ...the following pin out 1 No Connection N C 10 N C 18 N C 2 485 11 N C 19 N C 3 485 12 N C 20 N C 4 N C 13 N C 21 N C 5 N C 14 485 22 N C 6 N C 15 N C 23 N C 7 GND 16 485 24 N C 8 N C 17 N C 25 N C 9 N...

Page 30: ...ir is comprised of a black and a red wire accompanied by a drain wire and surrounded by a shield A numeric label 1 through 6 identifies each pair of black and red wires The following table details the...

Page 31: ...Click 200 Wiring Old See Figure 21 for a diagram of the previously used SmartSensor cable s 25 pin socket assignment The codes listed in the diagram are to be used to solder wires into the back of th...

Page 32: ...SmartSensor 105 User Guide Wavetronix LLC 9 20 07 32 Figure 21 Old SmartSensor SS105 Plug Connector Socket Assignment as seen from the solder cup side of the connector...

Page 33: ...en not using a Click 200 NOTE The RS 232 pin outs remain the same on the SmartSensor cable regardless of connecting to a PC or a modem If connecting to a PC a null modem cable is required see Figure 2...

Page 34: ...SmartSensor 105 User Guide Wavetronix LLC 9 20 07 34 Table 7 Belden 9331 Old Cable Conversions...

Page 35: ...is 200 feet or greater you cannot reliably use RS 232 communications To add 400 feet and achieve a maximum cable length of 1000 feet connect the orange wire normally RTS to the red wire and the brown...

Page 36: ...you may also want to select an alternate cable for RS 485 communications Some options include the Belden 3105A Paired EIA Industrial RS 485 PLTC CM or Alpha Wire 6010C 3PR 22 AWG There are many reliab...

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