Appendix 2 - Adaptec Ultra2 Lvd Scsi - TYAN S1837 User Manual

Adaptec Ultra2 LVD SCSI
1. INTRODUCTION
With the dual onboard Ultra2 SCSI connectors, you can connect up to 30 SCSI
peripherals, such as hard disk drives, scanners, CD-ROM drives, and tape
drives. This guide provides instructions for
• Connecting SCSI peripherals
• Installing the AIC7986 software
The motherboard has two independent Ultra2 LVD SCSI channels and each
has a maximum throughput of 80MBytes/sec.
Support for Non-Ultra2 SCSI Devices
The LVD signaling used for Ultra2 devices operates differently than single-
ended signaling used on Ultra, Fast, and Fast Wide SCSI devices. Ultra2 SCSI
devices are designed with multimode capability so that if a single-ended device
is connected to the LVD Ultra2 SCSI bus, the Ultra2 devices automatically
switch to single-ended mode. When an Ultra2 SCSI device operates in single-
ended mode it is subject to the cable distance limitations and signal noise
problems of that interface.
S1837 Thunderbolt
91