... 4 EN61000-4-6 (CS), level 4 EN61000-4-8, level 4 EN61000-4-11, level 4 Shock: ... , RoHS approvals Part No.Descriptionunitif11-M1*TP+1*fiber port,multi-mode,2Km,12~36VDC,SC/FCSTPcsCi-if21 ... ,12~36VDC,SC/FCSTPcsCk-if11-S1*TP+1*fiber port,single-mode,20Km,12~36VDC,SC/FCSTPcsCi ... TP+1*fiber port,single-mode,20Km,12~36VDC,SC/FCSTPcsTransmission distance and single fiber is optinal optical fiber converter/ ...