TrafficCast Quick Start—BlueTOAD Spectra and RSU
Revision 02 May 2019 6-1
6. Appendix—Blue TOAD Spectra RSU Specifications and
Site Requirements Form
RSU Specifications
BlueTOAD Spectra RSU Network Security Statement
Currently the BlueTOAD Spectra RSU is designed to reside within the existing Traffic department network,
and thus will fall within its security policy structure and guidelines. For example:
• The BlueTOAD Spectra RSUs do not use public IPs, and thus are only accessible from inside the
same Agency Network. Relying on network switch/firewall settings, anyone from the outside would
have to enter by authorization from the Agency.
• RSUs are NOT connectable wirelessly via Wi-Fi or Bluetooth. Thus, wireless access from the street
is NOT possible. However, in the cabinet, wireline access is possible through the cabinet switch
and/or BlueTOAD PoE injector, but then once in the cabinet, access to other devices and the
Agency network is also vulnerable.
• The BlueTOAD Spectra Password can be changed using the TrafficCast Windows 10 based
BlueTOAD Spectra RSU Configuration Utility. The RSU side is then accessible with SSH on
Port 22 – currently using a “Root” login (Username), with a Password that can be changed based on
Agency requirements.
• Upon request, TrafficCast and DENSO can implement and test DSRC Security (IEEE 1609.2
Standard) to validate capability and interoperability of the BlueTOAD Spectra RSU to support
vehicle Onboard Unit (OBU) requests for the Security Certificate Management System (SCMS) to
provide exchange of OBU security certificates.
Bandwidth/Data Usage
Regarding the bandwidth, on a per RSU/site basis, between the controller and RSU expect 202 MB per day
of data going to the RSU. From the RSU to the TrafficCast servers (AWS) expect at least 450MB per day of
SPaT and MAP alone. Bluetooth data usage is 10-15 MB per day from the RSU to the TrafficCast servers.
Automotive Basic Safety Messages (BSM) will require additional bandwidth – but current enabled vehicle
population is too low to estimate data requirements.
FCC Individual Device RSU License Details
The TrafficCast BlueTOAD Spectra RSU includes a DSRC transceiver radio module manufactured by
DENSO International America, Inc. The TrafficCast RSU and DENSO OBUs comply with the FCC and
other technical requirements as prescribed by USDOT RSU Specification V4.1 Req_432-v004. In the past,
the TrafficCast RSU has received the FCC Grant of Equipment Authorization. The TrafficCast RSU
specifications for FCC authorization include:
• Manufacturer and model of the RSU Module - DEN
• SO RSU-5910A-2 Rev.1.1
• FCC ID numbers: 2AEGPMK5MOD / XPYTHEOP173
• Manufacturer and model of the Antenna - L-Comm HGV-4958-06U
• Antenna gain in dBi – 8 dBi max
• Antenna Beamwidth in degrees - Omni-directional (360 degree)
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