T E C H N I C A L R E F E R E N CE TR 117 7 Trouble T shootin ng a Perrmanen nt Link IIntroduction n TTroubleshooting fiber optic permanent links in the fiield can beco me very tedio ous, time con nsuming and ffrustrating if some s simple steps s are not followed. Th he following ddocument will suggest steps to follow iin order tto systematicaally test and troubleshoot t a permanentt link consisti ng of MPO ho orizontal cabling and LC to o MPO ccassettes duriing installatio on.
T E C H N I C A L R E F E R E N CE TR 117 7 3. Test Link L 4. If link fails, inspectt the LC endfaaces of the reference cordss that are maated to the caassettes, dry cclean if necesssary, re‐inspe ect. Re‐mate e when clean and retest th e link. Inspect and d clean if necessaryy Inspect and d clean if necessaryy 5. If the link fails, insp pect the MPO O endfaces off the trunk asssembly attach hed to the caassettes and tthe endfaaces of the MPO internal to o the cassette e.
T E C H N I C A L R E F E R E N CE TR 117 7 6. If the link fails, insp pect the LC endfaces interrnal to the casssettes and ree‐inspect the endfaces of LC ence cords mated to the caassettes. Dry clean if neceessary, re‐insp pect, re‐matee when clean and refere retestt the link. Inspect and d clean if necessaryy Inspect and clean if necessary 7. If the link fails, swaap cassettes. If and restesst. Sw wap Cassettes 8. If the failure follow ws the cassettte, then you know k the casssette is bad.
T E C H N I C A L R E F E R E N CE TR 117 7 Testing the t Horizontaal using Multii‐Fiber Pro (w with PanMPO O reference co ords) Applyy the followin ng when testiing an MPO horizontal h cabbling infrastrructure. 1. Reference utilizingg Method B. (Note: ( The PaanMPO will nneed to have male gender to interface w with the Fluke Multi‐Pro fem male interfacce). 2. Te est the MPO reference corrd. This is completed by cchanging the o one PanMPO reference co ord end to fe emale genderr as shown.
T E C H N I C A L R E F E R E N CE TR 117 7 3. Te est MPO horizontal cable as a shown. No ote that the FFemale PanM MPO used in Sttep 2 to checck the in ntegrity of the e reference co ord has to be changed bacck to Male in order to test the link. 4. If the link fails,, inspect all fo our endfaces and clean if nnecessary. Ree‐mate and reetest. In nspect an nd clean en ndfaces InspeectInspect and clean and cllean endfaces endfaaces we eb: www.pand duit.com e-mail: e cs@pa anduit.
T E C H N I C A L R E F E R E N CE TR 117 7 5. If the link fails,, flip the Mete er and Source e and test froom the other direction. Flip the test equipment e 6. If the link fails,, then there iss an issue witth either the M MPO connecttor on the asssembly or witth the caable within th he assembly. If it passes, there t is an isssue with the M MPO connecttor on the firsst end te ested and furtther troublesshooting need ds to occur orr the MPO neeeds to be rep placed. we eb: www.pand duit.
