OINS Optical insulator
It is intended for a galvanic isolation of forward and reverse channel signals of a CISCO head modem operating in the DOCSIS standard. It enables lightning guard of the expensive head modem.
A forward channel signal level from the CISCO output at the OINSI input is 90-120 dB/µV. A forward channel signal level at the OINS2 output is 110dB/µV. A reverse channel signal level at the OINS 2 input and at the OINS output correspondently is 50-75dB/µV.