Further information for Telecom Behnke 20-9506 - Behnke DC / DC converter
. BNOS-DC/DC-Wandler
The BNOS-DC/DC-Wandler is a companion board for the BNOS elevator emergency telephone
20-0020 Behnke and other phones and offers The Possibility of a
24V to 12V conversion and galvanic isolation - Necessary for external, grounded power supply.