HP NetRAID-4M Installation Guide

2-8
Hewlett-Packard NetRAID-4M Controller Installation Guide
3 Attach one end of the 68-pin internal ribbon cable to the
internal connector (Channel 0 or 1) on the HP NetRAID-4M, as
shown in Figure 2-5.
Figure 2-5. Attaching a 68-pin Internal Ribbon Cable
4 Attach the remaining connectors on the ribbon cable to your
remaining internal devices.
Note: To connect an 8-bit internal SCSI device, you
must obtain a 68-pin-to-50-pin converter for the
device. Install the converter between the connector on
the cable and the connector on the device. Do not mix
8-bit (Narrow) and 16-bit (Wide) devices on a channel.
5 Connect a DC power cable (from your computer’s power
supply) to the power input connector on each SCSI device.
Connecting External SCSI Devices
For each external SCSI device, you must obtain a high-quality external
cable with a single-ended impedance range of 80–110 ohms. One of
these cables must have a very high-density 68-pin connector on one
end so that you can connect the cable to the HP NetRAID-4M. Each
cable must be at least 30 cm (11.8 in.) long. For additional
information on cabling SCSI devices, see Installation Hints for
Connecting SCSI Devices on page 2-13.