OM1 ST-ST Multimode Duplex Fibre Patch Lead

This OM1 ST-ST patch lead uses 62.5 micron multimode (62.5/125) fibre in a duplex, two-fibre construction. One fibre carries the transmit signal and the other the receive signal, the arrangement used by almost all fibre transceivers. It supports Gigabit Ethernet runs to about 275 metres, with 10 Gigabit limited to very short links of around 33 metres. It is mostly used to extend, repair or re-patch networks that were originally installed with OM1 cabling, since mixing core sizes on one link causes heavy signal loss.

ST uses a round bayonet twist-lock, still found on many established fibre installations on both ends. Orange has traditionally marked 62.5 and 50 micron multimode fibre.

• ST to ST connectors
• OM1 multimode fibre, 62.5/125 micron
• Duplex (two fibre) construction
• LSZH (low smoke zero halogen) jacket
• Colours: Orange
• Lengths from 1m to 3m

Typical uses: cross-connects in comms cabinets, connecting transceivers to wall outlets, and replacing damaged patch leads.