... E4118LM65Last Mile Filtered 1650 nm OTDR Module E4118RLM65Continuous and modulated source option E41OTDRLSPower meter option E41OTDRPMUniversal optical connectorsStraight connectors EUNIPCFC, EUNIPCSC, ... EUNIPCST, EUNIPCDIN, EUNIPCLC8° angled connectors EUNIAPCFC, EUNIAPCSC, EUNIAPCDIN, EUNIAPCLC JDSU MTS-4000 OTDR