Active Optical Cable (AOC) ( Vs Active copper : Direct Attach Copper Cable)
JNP-QSFP-100G-LR4
QSFP28 100GBase-L4 Optics for up to 10km transmission over serial SMF
https://apps.juniper.net/hct/model/?component=JNP-QSFP-100G-LR4
JNP-QSFP-100G-SR4
QSFP28 100GBase-SR4 Optics for up to 100m transmission over parallel MMF
https://apps.juniper.net/hct/model/?component=JNP-QSFP-100G-SR4
JNP-QSFP-100G-PSM4
QSFP28 100G base PSM4 optics for up to 500 m transmission over parallel SMF