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City of Lynnwood. Wireless Communication in the ITS network Dick Adams, PE, PTOE. Wireless Communication Fiber Network. Wireless Communication How Wireless Fits In. Fiber network is 95% installed Needed Temporary connection Most critical equipment is IP based Need High Throughput

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city of lynnwood

City of Lynnwood

Wireless Communication in the ITS network

Dick Adams, PE, PTOE

wireless communication how wireless fits in
Wireless Communication How Wireless Fits In
  • Fiber network is 95% installed
  • Needed Temporary connection
  • Most critical equipment is IP based
  • Need High Throughput
  • Cost effective
  • Ease of installation and configuration
wireless communication the design of wireless
Wireless Communication The Design of Wireless
  • Researched 6 different manufacturers
  • Wanted Point 2 Point
  • Encryption Ethernet Bridge
  • PTZ standard is NTSC, needed to covert to IP or purchase new PTZ
wireless communication making the choice
Wireless Communication Making the Choice
  • Maxstream Xpress Ethernet Bridge
    • Throughput : 15 Mbps
    • Interference possible on the 900 Mhz
    • $390 per pair of modems
  • Needed in house Design for Antennas
    • Yagi antennas - 40 miles Line of Sight
      • Low Loss cable with 50 Ohm impedance

Paul Coffelt, PE - ITS Engineer

wireless communication encoders decoders
Wireless Communication Encoders - Decoders
  • Convert NTSC to MPEG

Or Motion JPEG

  • IP addressable
  • Web based IP programming
  • Single or 4 video signal versions
  • Ethernet with Serial port for control
  • Up to 30 fps possible
  • With Wireless we use 3 fps per channel
wireless communication central ip network
Wireless Communication Central IP Network

Servers

Fiber Modem

To the Field

Managed Switch

3 X 48 ports

Web Browser

AXIS Decoder

NTSC

Video Matrix Switch

NTSC

Monitors

wireless communication field locations ip network
Wireless Communication Field Locations IP Network

To Central

PTZ

NTSC

AXIS Decoder

Fiber Modem

Controller

Ethernet Switch

Ethernet Switch

Video Detection

Maxstream

Maxstream

Bridge

Power over

Ethernet

Power over

Ethernet

AC/DC

AC/DC

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