Silicon Graphics O2+ Hardware Reference Manual page 117

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5. Link the devices in a daisy-chain (Figure 3-21), as follows:
First device: Connect the SCSI cable to the device and to the workstation. If there
are thumbscrews on either side of the connectors, tighten them.
Second and all other devices: Connect the SCSI cable to the connector on the back
of each device. If there are thumbscrews on either side of the connectors, tighten
them.
Note: The illustration shows an RM7000class workstation. The process of connecting
external SCSI devices is the same on an R12000class workstation.
6. Connect a power cable to each SCSI device and to a working electrical outlet.
7. Connect the active SCSI terminator to only the last device on the daisy-chain.
8. Turn on each device, and then turn on the workstation. You must turn on the
devices in this order, so that the workstation recognizes the devices.
9. To check that the system recognizes the new SCSI devices, from the Toolchest select
System > System Manager > About This System. External SCSI devices are shown
here.
Connecting External SCSI Devices
97