Connection Types :

1. Intersection B Intersection C Intersection A Traffic Controller Traffic Controller Traffic Controller ●InSync DIN Relay ●InSync DIN Relay ●InSync DIN Relay ●InSync Processor ●InSync Processor ●InSync Processor InSync Unmanaged Ethernet Switch InSync Unmanaged Ethernet Switch InSync Unmanaged Ethernet Switch Managed or Unmanaged Ethernet Switch (Media Converter) for: Fiber Wireless Radio Copper Interconnect Un/Managed Ethernet Switch (Media Converter) for: Fiber Wireless Radio Copper Interconnect Un/Managed Ethernet Switch (Media Converter) for: Fiber Wireless Radio Copper Interconnect Electrical only connection Comms data connection w/restrictions Restrictive connection Isolated Fiber/Wireless Radio/Copper Interconnect Network ●DSL Modem Connection Types: Network Admin. ●Credentials required to view or gain access No physical connection unless authorized Un/Managed Fiber Ethernet Switch Internet ●Cisco Industrial VPN Router/Ethernet Switch Firewall Ensures traffic can never be viewed without permission VPN usernames and passwords can be leased ● Authorized Engineer or Technician ● Rhythm Engineering

2. Intersection B Intersection A Intersection C Traffic Controller Traffic Controller Traffic Controller ● DIN Relay ● DIN Relay ● DIN Relay ●InSync Processor ●InSync Processor ●InSync Processor Ethernet Switch Ethernet Switch Ethernet Switch Managed Fiber Ethernet Switch Managed Fiber Ethernet Switch Managed Fiber Ethernet Switch Isolated Fiber Network Electrical only connection Commsdata connection w/restrictions Restrictive connection Connection Types: ●Credentials required to view or gain access Network Admin. Managed Fiber Ethernet Switch Security Station No physical connection unless authorized Optional Connection VPN usernames and passwords can be leased Managed Fiber Ethernet Switch ● Security ●Cisco Industrial VPN Router/Ethernet Switch ●DSL Modem Can be unplugged when lease is not available Firewall Secured Network is never accessed Ensures traffic can never be viewed without permission ● Authorized Engineer or Technician ● Rhythm Engineering

3. Two types of Data 1. Upstream Returns & other Polling Data ≈ 300 bps 2. Video Stream Monitoring Min bandwidth 1 Mb/sec Up & 2 Mb/sec Down

4. Intersection B Intersection A Intersection C Traffic Controller Traffic Controller Traffic Controller ● DIN Relay ● DIN Relay ● DIN Relay ●InSync Processor ●InSync Processor ●InSync Processor Ethernet Switch Ethernet Switch Ethernet Switch Un/Managed Fiber Ethernet Switch Un/Managed Fiber Ethernet Switch Un/Managed Fiber Ethernet Switch Isolated Fiber Network Electrical only connection Fiber data connection w/restrictions Restrictive connection Connection Types: ●Credentials required to view or gain access Network Admin. Un/Managed Fiber Ethernet Switch Security Station No physical connection unless authorized Optional Connection VPN usernames and passwords can be leased Un/Managed Fiber Ethernet Switch ● Security ●Cisco Industrial VPN Router/Ethernet Switch ●3G/4GCell Modem Can be unplugged when lease is not available Firewall Secured Network is never accessed Ensures traffic can never be viewed without permission ● Authorized Engineer or Technician ● Rhythm Engineering

5. Intersection B Intersection A Intersection C Traffic Controller Traffic Controller Traffic Controller ● DIN Relay ● DIN Relay ● DIN Relay ●InSync Processor ●InSync Processor ●InSync Processor Ethernet Switch Ethernet Switch Ethernet Switch Un/Managed Fiber Ethernet Switch Un/Managed Fiber Ethernet Switch Un/Managed Fiber Ethernet Switch Isolated Fiber Network Electrical only connection Restrictive connection Fiber data connection w/restrictions Connection Types: ●Credentials required to view or gain access Network Admin. Un/Managed Fiber Ethernet Switch Security Station No physical connection unless authorized Optional Connection VPN usernames and passwords can be leased Un/Managed Fiber Ethernet Switch ● Security ●Cisco Industrial VPN Router / Ethernet Switch *See Notes or ●DSL or 3G/4G Cell Modem Can be unplugged when lease is not available Firewall Secured Network is never accessed Ensures traffic can never be viewed without permission ● Authorized Engineer or Technician ● Rhythm Engineering