5.2 LEDs and BeeperThe standard settings for the LEDs and the beeper are as follows:LED/Beeper Action Status UDL 250Yellow LED blinking field is switched offconstantly on field is switched onGreen LED blinking successful reading/writing of atransponderRed LED constantly on malfunctionBeeper beep tone successful reading of a transponderTable 5.2.1: Function LEDs and Beeper (factory settings)Note:The LED characteristics may be different to those described above due tochanges in configuration.V14/05/09 896108_wi_en_li_udl-250_pro_v130214_io_sk_fh_bf.odt 11Wiring and Installation UDL 250