Adaptec MAN-FC2002-001 1Gb Operation

Setting Fibre Channel Loop Speed (2Gb or 1Gb)
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1Gb Operation To set the fibre channel loop speed to 1Gb operation:
1Remove the LS module from the front of the enclosure.
2On the LS Module locate the jumper position JP2 (Figure 2-1).
3For 1Gb operation there should be no jumper installed at JP2. If
one is installed, remove it.
4Replace the LS module.
Figure 2-1 Location of Jumpers on LS Module