_:nf9db8d7c686b40a28c0c83595aff043axb0
<http://schema.org/description>
"The EL2521-xxxx output terminals change the frequency of a binary signal and output it (electrically isolated from the K-bus). The frequency is preset by a 16 bit value from the automation device. The signal state of the EtherCAT Terminal is indicated by"
<https://www.beckhoff.com/sv-se/products/i-o/ethercat-terminals/el2xxx-digital-output/el2521-0024.html>