Industrial Media Converter with 1x RS-232 DB9 connector and 1x MM ST 2km Agilent transceiver transparent conversion from RS-232 signals for baud rates greater than 115200 automatic adaptation and conversion of any RS-232 speed transients and ESD Protection for RS-232 copper interface relay contact for alarm in case of power failure extended temperature range +7 to +30 VDC power supply (not included) fan. Suitable for mounting on DIN rail or wall mounting.