User guide

20
MultiArray User Guide
8-Bay Disk Drive Cabling
The disk drive cabling process involves making the connections between each disk drive and the
mux card via the ribbon (data) cables, and between each drive and the power connectors on the
backplane via the Y cables. The mux board connectors are shown in Figure 2-9.
HDD9 HDD8
HDD7
HDD6 HDD5 HDD4 HDD3
HDD2
HDD1
SFDD1
SHDD1
SHDD3
SFDD2
SHDD2
SFDD3
SHDD4
SFDD4
SHDD5
SFDD5
SHDD6
SFDD6
SHDD8
SFDD7
SHDD7SHDD9
SFDD8
SFDD9
CD-ROM Drive
Floppy Drive
Power for CD-ROM
and Floppy Drives
Figure 2-9. MA3a Mux Board Connectors
The connectors in Figure 2-8 have been labeled with acronyms that designate their segment
number and connection type (see the Internal SBC Cabling section for a description). The
information in this section details the disk drive connections. For information on the SBC
connections, refer to the SBC Cabling section of this guide.
Hard Drive Connections
1 Connect the ribbon (data) cable supplied with the MultiArray to the data connector on the
hard drive ensuring that pin 1 of the cable mates with pin 1 of the drive. These
connectors are 40-pin box connectors. See Figure 2-10.
Caution: Hard disk drives with IDE interfaces can connect to the SBC. Drives with other
interfaces, such as SCSI, can not be connected to the SBC. Refer to the drive publications for
data cabling and possible interface board installation.
Mux Card
Hard Drive
Connector
40-pin Ribbon
Cable (9)
Hard
Disk Drive
Pin 1
Figure 2-10. Disk Drive Connection