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Page | 1 Typical ATS network Topology:

COLLECTING VEHICLE DATA UDP PRTOCOL

TRANSMIT DATA SPREADER MATERIAL DISPENSED DATA AND INTRANET LAN WAY POINTS/INPUT ACKNOWLEDGE DATA FIREWALL SWITCHES SERIAL *COMPUTER ATS DEVICE PORT CELL WITH ROAD/AIR TEMP DATA REPORTING PPP *CPI WILL PROVIDE ATS SERVER LINK MODULE GPS LOCATION DATA SOFTWARE. WEB SERVER AND DATABASE ARE OPTIONAL

Description of operation 1. The GL400 or ACS Spreader control communicates with the ATS device over Serial RS‐232 communication. The ATS collects material data from the Spreader control while the Spreader is powered on. 2. Each record the ATS stores included vehicle location data if a GPS equipped ATS is utilized. 3. The ATS is capable of accepting inputs from external switches such as Plow position or user initiated Way pointing. 4. The ATS stores the data reliably through power interruptions and network problems. This is a type of Store and Forward technology. 5. Utilizing a Cellular modem the ATS through Serial link (RS‐232) uses PPP protocol to open a cellular connection to the internet. 6. Using UDP protocol the ATS attempts to establish a connection to a specified remote computer for transfer of data. 7. Using UDP protocol over the internet data packets are transmitted by the ATS record by record. After each record is transmitted the ATS waits for an Acknowledgement of receipt of data by the remote computer before the next record is sent. 8. Records are sent in and out of a Firewall through a specific port address configured by the remote networks administrator.

WI­FI ATS network Topology: COLLECTING VEHICLE DATA **802.11G EAP FAST, EAP TTLS/MSCHAPV2 *CPI WILL PROVIDE ATS SERVER SOFTWARE. WEB SERVER AND TRANSMIT DATA DATABASE ARE OPTIONAL SPREADER MATERIAL *WI-FI DISPENSED DATA

WAY POINTS/INPUT ACKNOWLEDGE DATA INTRANET SWITCHES LAN *COMPUTER ATS DEVICE WITH ROAD/AIR TEMP DATA REPORTING ACCESS POINT MODULE GPS LOCATION DATA

1. The ATS collects data as stated in the previous example. The UDP protocol is utilized. The ATS uses an acknowledge mechanism to ensure data integrity. 2. The ATS uses the same type of store and forward technology as stated in the previous example but with the limited range of Wi‐fi only off‐loads data when the vehicle is close to the access point. Records are off‐loaded at rates as high as 100 records per second, so Drive‐by Download operation is very efficient. 3. The ATS uses the latest encryption and authentication methods of the EAP protocol, but is also compatible with lower levels of security such as WEP. SG07230022 REV.1 ATS NETWORK TOPOLOGY TERMS AND DEFINITIONS Page | 2 1. Cell Modem: A standalone device that when activated utilizes cellular networks to transfer data wirelessly between two network nodes. 2. ATS Device: A device developed by Certified Power to interface vehicle equipment such as electronic Salt Spreader controllers, Waypoint switches, temperature data, and GPS through its on‐board GPS receiver for purposes of reliable data collection through store and forward technology which include but is not limited to: material dispensed, Plow Up/Down, Vehicle location and speed, Temperature data, and Waypoint data. 3. Store and forward: is a technique in which information is sent to an intermediate station where it is kept and sent at a later time to the final destination or to another intermediate station. The ATS utilizes this type of technology 4. PPP: A Protocol commonly used in establishing a direct connection between two networking nodes. 5. UDP Protocol: (User protocol) Core member of the Internet protocol suite, the set of network protocols used for the internet. 6. Router: An electronic device that interconnects two or more computer networks. 7. Firewall: A technological barrier that prevents un‐wanted access between computer networks. 8. Internet: The Global system of interconnected computer networks 9. Intranet: A private 10. Database: Digital storage/collection of data for one or more uses 11. Acknowledge: In the case of our ATS device; A method used to ensure data receipt from one network to another; such as from the ATS device to a Remote computer where the ATS server software resides. 12. SQL Server: The type of Software Database utilized by Certified Power when a user purchases our Reporting module Software. SQL Server and SQL Server Express is a registered product of Microsoft Corporation. 13. Reporting Module: A Group of Software packages sold by Certified Power, that when installed, reside on a customer’s computer. The reporting module includes a custom configured SQL Database, Web Server (IIS) and Web pages to allow users to review vehicle or asset data through organized tables, graphs and charts using any Internet browser. 14. Drive‐by Download: Data is moved across a two nodes in a network when the nodes are within frequency range of each‐other. Typically a Wi‐fi connection is used. Data is off‐ loaded at a high rate of speed. 15. Wi‐Fi: . 16. EAP: In Wi‐Fi security, the WPA‐improvement over the IEEE 802.1X standard with the Extended enhancements such as FAST, TLS, TTLS, and MSCHAPV2. 17. WEP: In Wi‐Fi Security is a deprecated security alogorithm for IEEE 802.11 wireless networks. The newer EAP extended protocols are Higher security and generally have replaced WEP under the IEEE 802.1X standard.

SG07230022 REV.1 ATS NETWORK TOPOLOGY