Designing a Wireless Network Steps / Considerations / Do s & Don t s Standards Certification Education & Training Publishing Conferences & Exhibits Patrick Ho Director, System Solutions, Eaton 2015 ISA Water / Wastewater and Automatic Controls Symposium August 4-6, 2015 Orlando, Florida, USA
Presenter: Patrick Ho Over 25 years of experience in program management and wireless / wireline communications working in Engineering, Project Management, Product Management and Sales. BS degree from University of Saskatchewan, Electrical Engineering, and an MBA degree from the Chinese University of Hong Kong. Responsible for delivering innovative communication solutions to customers, with a special focus in the water / wastewater market. Aug 4-6, 2015 Orlando, Florida, USA 2
Designing a Wireless Network Radio Concepts Distance, Range Protocols Design Process and Installation Steps Path loss Site surveys Network design Installation/Commissioning Licensed/Unlicensed Ethernet modems, Switches; Network Management software Aug 4-6, 2015 Orlando, Florida, USA 3
Long Distances Repeaters decrease throughput and add latency. Workable distance for 1Mbps is less than 6 miles (line-ofsight). Earth s curvature requires antenna to be 66 ft higher to see over the horizon at 10 miles. Very large sites can require a lot of repeaters Aug 4-6, 2015 Orlando, Florida, USA 4
Radio Concepts Selecting Radio Technology DO s Pick lower data rates Plan for repeaters Consider hybrid solutions DON T s Configure for fastest data rate possible Assume new radios will cover same distance as legacy radios Believe all radio data sheets Aug 4-6, 2015 Orlando, Florida, USA 5
Range How Far Will it Go? Received Signal Strength Circles of Success Performance Zone Path engineering Required Wireless Conduits up to 20 miles Receiver Threshold Common Sense Zone Success with Experience Wireless Conduits up to 1.5 miles Distance No Worry Zone This is Electricians Territory Wireless Conduits up to 1/4 mile Aug 4-6, 2015 Orlando, Florida, USA
There are many protocols to choose from Aug 4-6, 2015 Orlando, Florida, USA 7
Every installation is different What worked at one location will not always work at the next due to obstacles, other RF devices, environment noise, etc. Aug 4-6, 2015 Orlando, Florida, USA 8
Design process and implementation steps Desktop path-loss study RF site survey Network design Installation Commissioning Aug 4-6, 2015 Orlando, Florida, USA 9
Desktop path-loss study Coordinates for each site Expected amount and type of data traffic Location of head office / master site Location of existing land lines Estimate of allowable antenna heights Aug 4-6, 2015 Orlando, Florida, USA 10
Location plot Aug 4-6, 2015 Orlando, Florida, USA 11
Profile view Aug 4-6, 2015 Orlando, Florida, USA 12
Needs repeater(s) Aug 4-6, 2015 Orlando, Florida, USA 13
Pathloss study example Locations (lat & long) Name Latitude Longitude Well 1 38.885576-92.45778 Well 2 38.888728-92.46742 Well 3 38.876169-92.46022 Well 4 38.874918-92.45950 Well 5 38.864664-92.45108 Well 6 38.863290-92.45114 Well 7 38.887360-92.46744 Well 8 38.885313-92.45919 Well 9 38.897561-92.46433 Well 10 38.896187-92.46439 Well 11 38.872249-92.45083 Well 12 38.873628-92.45079 Well 13 38.880202-92.46632 Well 14 38.879327-92.46775 Well 15 38.878291-92.46886 Plant 38.887114-92.44339 Aug 4-6, 2015 Orlando, Florida, USA 14
Pathloss study example Fade report & plot Aug 4-6, 2015 Orlando, Florida, USA 15
Pathloss study example Preliminary equipment list Qty P/N Description 19 945U-E-H Ethernet Modem: 900MHz, 1W, DSSS OFDM, 54Mbps - High Power 18 YU6/900 Yagi Antenna: 900MHz, 800mm (32") long, 9dBi gain, N-type(female) connector. MUST add BR-YAG-KIT mounting kit and CC3/10/20 cable. 1 SG900-6 Omni-directional Antenna: 900MHz, 1.4m (55") long, 8dBi gain, N- type(female) connector. MUST add BR-COL-KIT mounting kit and CC3/10/20 cable. 18 BR-YAGI-KIT Mounting bracket kit: for Yagi antenna 1 BR-COL-KIT Mounting bracket kit: for collinear antenna 19 CC10-N Antenna Coaxial Cable: 10m (33ft) long, N-type (male) to N-type (male), loss =2.5dB@450MHz, 3.2dB@900MHz, 5.9dB@2.4GHz, Do not use for 5.8GHz (Use with CSD-N-6000 coaxial surge arrestor) CSD-N-6000 Lightning Surge Divertor for antenna cable: Bulkhead N-type (female) to N- type (female) DC-6GHz 30W without earth tail 19 19 1050E-T Unmanaged Ethernet Switch, 5-Port 19 Custom Radio System Enclosure -NEMA 4X 20x16x8 19 Custom Misc supplies 1 NMS-LIC-50 50 Node NMS Base System Aug 4-6, 2015 Orlando, Florida, USA 16
Very Large Cellular Aug 4-6, 2015 Orlando, Florida, USA 17
Hybrid: cellular + unlicensed last mile Aug 4-6, 2015 Orlando, Florida, USA 18 x Substations 92 x Gateways 945U-E 64 units Cellular modem 28 units 18
RF Site Survey To assure model calculations match up to the real world. Confirm GPS coordinates for each site Perform wireless spectrum analysis Determine obvious points of wireless interference Determine potential obstruction to line-of-sight Identify locations for mounting mast/tower Determine antenna height limitations Aug 4-6, 2015 Orlando, Florida, USA 19
Network Design Gather detailed requirements Collaborate with customer on various tradeoffs Choose appropriate radio components Establish wireless path calculations and link budget Provide complete network documentation Provide detailed Bill of Materials (equipment, cables, antennas, accessories) Aug 4-6, 2015 Orlando, Florida, USA 20
Installation / Commissioning Install towers/masts Install and align antennas Test link connectivity and throughput Training on maintenance and operation Complete as-built documentation Aug 4-6, 2015 Orlando, Florida, USA 21
Choices Public or Private Public cellular Private licensed or unlicensed Hybrid combination of the above Aug 4-6, 2015 Orlando, Florida, USA 22
Private Unlicensed Pros No monthly fees Network under your control Aug 4-6, 2015 Orlando, Florida, USA Cons Share the crowded spectrum with others Higher upfront installation costs 23
Private licensed Pros Interference free Higher transmit power available Cons License costs Data throughput usually lower Higher upfront installation costs Aug 4-6, 2015 Orlando, Florida, USA 24
Public Network (Cellular) Pros Managed Network Readily available High bandwidths available Span very large distances Aug 4-6, 2015 Orlando, Florida, USA Cons Dependent on outside party for communications Not available everywhere Monthly fees 25
Wireless Ethernet Modem Options Features Models Makeup Licensed Narrow Band 400MHz Licensed Narrow Band 900Mhz Unlicensed Wide Band 900Mhz Unlicensed Narrow Band 900Mhz Unlicensed 802.11 b/g 802.11a 2.4G &5GHz Cellular 3G 450U-E 19.2Kbps / 50 miles 950U-E 120 Kbps / 20 miles 945U-E 54Mbps / 9 miles 905U-E 200Kbps / 20 miles 245U-E-G 108Mbps / 6 miles 615M-1 14.4Mbps / ~ miles Wireless Ethernet Modems RJ45, RS232 & RS485 Connections Access Point, Client, Bridge or Router modes Modbus I/O Server functionality WDS Repeater functionality for all wide band & 802.11 radios I/O Expansion capability with 115S Expansion I/O (Includes DNP3 option) High Radio TX Power, Excellent Sensitivity for industrial applications Aug 4-6, 2015 Orlando, Florida, USA 26
Ethernet Switches Managed Unmanaged Aug 4-6, 2015 Orlando, Florida, USA 27
Network Management Software Monitoring, Reporting, Historian, Alarming, Configuration, etc. Example; here currently monitoring a 2000 radio network Aug 4-6, 2015 Orlando, Florida, USA 28 28
Summary Presentation content starts here Don t forget to have 1-2 summary slides at the end Aug 4-6, 2015 Orlando, Florida, USA 29