Tom Randstrom Tue, 03/23/2010 - 06:39
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Yes, you can use the GLC-SX-MM with OM-3 fiber.

The specs for OM-3 fiber is for laser-optimized 50 µm fiber with a minimum of 2000 MHz-km effective modal bandwidth (laser band-
width).  Per Table 1 of the Cisco SFP specification sheet (URL below), this module pn OM-3 fiber will have an effective reach of 1000 meters.

Cisco SFP Optics For Gigabit Ethernet  Applications


Hope this helps!

Leo Laohoo Tue, 03/23/2010 - 14:28
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Yes you can.  Make sure not only both sides are using OM3 but the horizontal cabling is too.  We're using OM3 all over the place.

keithmatsepe Thu, 03/25/2010 - 04:18
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Thanks a lot guys. I managed to do some tests and it seems to be working 100%


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