Adaptec AAA-130U2 SERIES, Hardware Manual, Page: 24 / 82

2-10
AAA-130U2 Series Installation and Hardware Guide
Internal Ultra2 SCSI Connector (68-pin)
Use the internal Ultra2 SCSI connector to connect internal Ultra2
and Ultra SCSI devices. The AAA-131U2 has one internal Ultra2
SCSI connector (Channel A); and the AAA-133U2 has three
(Channels A, B, and C).
Note:
We recommend keeping Ultra2 devices on separate
channels from non-Ultra2 devices. Peak transfer rates on
Ultra2 channels are 80 MBytes/sec. Connecting a non-
Ultra2 device to an Ultra2 SCSI channel limits the entire
channel to lower performance levels (up to 40 MBytes/sec).
To connect internal Ultra2 SCSI devices, a 68-pin internal Ultra2
SCSI cable, similar to the one shown in Figure 2-7, is required.
Follow these steps to connect your internal Ultra2 devices:
1
Locate the 68-pin internal Ultra2 SCSI cable.
Connect to Ultra2 SCSI device Connect to
AAA-131U2/133U2
Terminator
Figure 2-7. 68-pin Internal Ultra2 SCSI Cable