I have a core switch Cisco3750G with 4 SFP slot populated with GLC-SX-MM module.Now in these 4 fiber GLC-SX-MM modules 3 are connected to 3 floor switches which are having the same GLC-SX-MM.Each link is configured as a TRUNK and allowed only that floor VLAN and working fine.Now the 4th GLC-SX-MM module has to be connected to a single desk top PC using a FIBER to UTP convereter,which is SC to UTP .Now patch pannel is LC ,I used a LC to SC fiber patch cord,but link is not coming up,in this situation if I used both side SC convereter then link is up.
All 4th GLC-SX-MM modules are checked and it is working fine.
Only the forth floor link is not coming up,if I use the UTP to Fiber SC type connector in the CORE switch for teh 4th Floor then it is working.
How to resolve this issue,Whether I need to use the UTP to Fiber LC type convereter in the fourth floor instead of SC type converter,logically when I use the LC-SC type patch cord and connecting to SC type converter it should work.I really do not know.
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