OM1 fibre patch leads 50/125 OM1 fibre patch leads 50/125 mattbarkerlfc (TechnicalUser) (OP) 29 Sep 16 17:46 Hi, Can anyone tell me if I can use OM1 50/125 patch leads with OM2 fibre cable? Thanks, Matt. RE: OM1 fibre patch leads 50/125 robertjo24 (MIS) 4 Oct 16 13:25 You can, for short runs, but I highly recommend against it. For one, its out of spec; you will get degraded performance. For two, its sets bad precedence of doing the wrong thing for expediency/cost sake.