Question about Finisar FTR-8519P-5A (FTR8519P5A) Transceiver

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Uplinking Linksys SRW2048 GB Switch to Extreme Alpine

I'm trying to uplink a Linksys SRW2048 GB switch to an Extreme Alpine 3804. The Extreme Alpine has a 4 port GB module (GM-4Xi), with 4 - Finisar multi-mode 850 nm GBIC modules (P/N FTR-8519p-5A) inserted into the GM-4Xi. The Linksys is a SRW2048 GB switch with a MGBLH1 GBIC - (I'm using port 3 of the Extreme GM-4Xi module and the shared port 23 on the Linksys for the linkage) The media is multi-mode fiber. I have turned off auto-negotiate on both switch ports. I get a link status light on the Linksys, but nothing on the Extreme. I have fiddled around, moving working links to this port 3 on the Extreme, with I'm eliminating the GBIC on the Extreme. I have also replaced the Linksys MGBLH1 module. Any clues on why this isn't communicating?

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