device used to read ERI data directly or indirectly from an ERT by invoking ERI transactions

NOTE 1 to entry In the case that an ERI reader exchanges the ERI protocol data units directly via a data link with an ERT it is also called an ERR. In case it communicates via one or more nodes, only the last node in this sequence is called an ERR. As a consequence, an external ERI reader can, depending on the onboard configuration for example, act for some, but not all, vehicles as an ERR.

NOTE 2 to entry See also onboard ERI reader and external ERI reader.

ERI writer not being part of the onboard ERI equipment

NOTE 1 An external ERI writer is not fitted within or on the outside of the vehicle.

NOTE 2 A distinction is made between proximity, short-range (DSRC), and remote external writers. A proximity reader can be, for example , a PCD (proximity coupling device) as specified in ISO/IEC 14443. A short-range external ERI writer can be (a part of) roadside equipment, handheld equipment, or mobile equipment. A remote external ERI writer can be part of the back office equipment (BOE).

electronic registration reader or interrogator that can fulfil the requirements defined in ISO 24535

device that performs the functions of a reader, but in addition has the ability to write new data to an OBE, or change data held in the OBE memory via an air interface