Mode Conditioning Patch Cords for Multimode Fiber Gigabit Links around 1,000 Feet

[NPT_2]

Has anyone had good or bad luck using mode conditioning patch cords with 1000 LX SFP's and Gbic's over 62.5 multimode fiber optic cabling?  We have a location that only has 1,000 feet of Multimode Fiber optic cable to it and they are in need of Gigabit connectivity.  I know this is beyond the 700 ft limitation for 1000SX Optics and MMF, but the specs also show the possibility of using 1000 LX SFP's and Mode conditioning patch cords.

Has anyone had luck doing this (good or bad feedback helpful) or would it be best to just run new Single Mode Fiber optic cable to this location? 

Jim

[johnd2310 · Accepted solution]

Hi,

This should work. I have a few MMF links using GLC-LH-SMD sfp and mode-conditioning patch cable running fine for years.

Thanks

John

[NPT_2]

Do you use one mode conditioning cable on each end of the link or just on one side of the link?  Also, is the offset on only one fiber or both the transmit and receive side?

Thanks,

Jim

[paul driver]

Hello

I agree I have come across condtioning cabling on OM1 running over 700 meters -
If i remember it was on both ends of the connection

res

Paul

[johnd2310]

Hi,

As stated by Paul, you need mode-conditioning cable on both ends of the link. The offset is on one of the fibres (Transmit Fibre), hence the need for mode cable at both ends.

Thanks

John