Hi, We are producing a product for use in marine navigation. It is an intentional transmitter, so we are getting it type-approved by a notified body, the DRA in the UK. DRA has told us ETS300339 is the relevant product standard. ETS300339 calls for most of the usual emissions and immunity tests such as EN55022 and IEC1000-4-x, but it also calls for testing to ISO7637, an automotive spike and surge immunity standard.
The system will ship with a choice of printers that are DC-powered at 12 to 24 volts and that are purchased CE-marked from a reputable printer manufacturer. My question is: do these off-the-shelf printers have to comply with ISO7637 because they are part of this larger system, or can they stand alone with their current CE marking? The printers were not designed for these severe spikes and surges and will likely fail. ------------------------------------------ John Lovell Director of Quality Trimble Navigation Ltd. +408-481-2012 Voice +408-481-8194 FAX [email protected] ------------------------------------------

