PD ISO/TS 16785:2020

This standard PD ISO/TS 16785:2020 Electronic Fee Collection (EFC). Application interface definition between DSRC-OBE and external invehicle devices is classified in these ICS categories:

• 35.240.60 IT applications in transport and trade
• 03.220.01 Transport in general

This document defines an application interface between DSRC-based OBE (hereinafter referred to as "DSRC-OBE") and an external in-vehicle device (hereinafter referred to as "the external device") to make DSRC-OBE applicable for diversified external devices.

The scope of this document covers the following items (as shown in Figure 4):

• definitions of the application interface between DSRC-OBE and external devices, including global navigation satellite system (GNSS), cellular network (CN) and controller area network (CAN) device;

• definitions of data groups and data elements.

The following items are out of the scope of this document:

• definitions of hardware components in the external device such as GNSS module, CN module and mobile devices;

• definitions of the physical interface between DSRC-OBE and the external device such as USB and Bluetooth;

• definition of ITS services other than EFC;

• definition of algorithms for authentication, encryption and key management.