User`s guide

Chapter 5. 3-Channel RAID Controller Installation
EK–SWRA2-IG. C01 5–11
7. Jumper – Check that the SHELF_OK jumper is installed as shown in Figure
5–8.
Figure 5–8 Shelf_OK Jumper on the Jumper
8. Replace both the SCSI backplane active terminator board and the SCSI
backplane jumper board previously removed from the backplane.
9. Replace both blowers. Align each blower with its power connector on the
pedestal’s backplane and insert the blower straight in. Make sure that the
locking tabs are firmly seated, and then replace the screws.
5.2.2 SCSI Cable Installation
NOTE
The total length of the cabling for a specific instal-
lation should be as short as possible.
The inter-device cabling of SCSI devices is critical to proper operation of the
system. A fast, narrow, single-ended SCSI bus as used in EISA and PCI applica-
tions can have a maximum length of 3 meters, including internal wiring and ex-
ternal cabling. The EISA channel-1/channel-2 or the PCI channel-2 internal ca-
ble connected to the computer system backplane adds approximately 0.5 meter to
the length of the SCSI bus.