Caution, Note – LSI SYM22801 User Manual
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2-2
Installing the SYM22801 Host Adapter
Caution:
Ground yourself by touching a metal surface before
handling boards. Static charges on your body can damage
electronic components. Handle plug-in boards by the edge;
do not touch board components or gold connector contacts.
The use of a static ground strap is recommended.
Step 4.
Locate the slots for PCI plug-in board installation.
Refer to the user’s manual for your computer to confirm the
location of the PCI slots. The SYM22801 requires a PCI slot
that allows bus master operation.
Step 5.
Remove the blank panel on the back of the computer aligned
with the PCI slot you intend to use. Save the bracket screw.
Step 6.
Carefully insert the edge connector J1 of the host adapter into
the PCI slot. Make sure the edge connector is properly
engaged before pressing the board into place. See the example
shown in Figure 2.1.
Note:
You may notice that the components on a PCI host adapter
face the opposite way from those on other non-PCI adapter
boards you have in your system. This is correct, and the
board is keyed to go in only one way.
Step 7.
The bracket around the connectors J3 and J7 (see Figure 2.1)
should fit where the blank panel was removed. Secure the
bracket with the bracket screw before making the internal and
external SCSI bus connections.
Step 8.
If you are connecting any internal SCSI devices, plug a 68-pin
connector on the end of the internal SCSI ribbon cable into
connector J2 or J6 for Wide SCSI, or a 50-pin connector into
connector J4 or J8 for normal SCSI (see Figure 2.1). Make
certain to match pin-1 on both connectors.
Note:
It is possible to use both internal connectors on a channel
if no external devices are attached to that chanel. You may
use only two of the three connectors on each channel at
once.
Step 9.
Connect your computer’s LED cable if desired. This is designed
to drive the front panel LED found on most PC cabinets to
indicate activity on the SCSI bus. See Table A.5 in Appendix A
for the signal name and pin numbers for this LED interface.