ISB+ is an electronic attachment that ensures a galvanic insulation between hazardous and safe areas for RS232 and RS485 communication ports.
RS232 and RS485 ports are available on both sides and it is possible to convert a signal from RS232 to RS485 and vice versa.
Corus or SEVC-D can then be read or programmed with a notebook in a local mode. A standard modem, RTU or laptop computer can also be connected through ISB+ to Corus or SEVC-D for remote reading.