Industrial Media Converters with 1x RS-232 DB9 port and 1x RS-422 / RS-485 terminal block, transparent conversion of RS-232 signals to RS-422 / RS-485 signals for baud rates up to 115200 baud, full and half duplex RS-422 / RS-485 signals, transient and ESD protection for RS-232 copper interface, relay contact to alarm in case of power failure, extended temperature range, power +7 to +30 VDC, power supply not included, fanless metal housing