Specifications

Escala Tower PL & S, E, T System Hardware
Chapter 5: Disks and Media 28/62
9es3s1c5.doc
Rev 5.9
02/12/03
2.9. PCI Enhanced Differential Ultra SCSI Adapter (MSCG044, MSCG049)
The PCI Universal Differential Ultra SCSI Adapter is the latest technology advancement of a SCSI-2
differential adapter with a maximum data transfer rate of 40 MB per second.
This adapter has the capability to be plugged into the newer +3.3 volt PCI slots as well as the older +5
volt PCI slots. It allows connection to external differential SCSI-2 F/W or Ultra SCSI type devices up
to 25 meters away.
The PCI Universal Differential Ultra SCSI Adapter will negotiate with each external device and
transfer data at the fastest SCSI data transfer rate capable by the external device.
The adapter conforms to SCSI-2 standard and the Fast-20 (Ultra) documentation. Industry standard 68
pin connectors are incorporated (SCSI "P" connector definition of X3T9.2/90-048).
Operational Requirements
•
Supported on the PL220T, PL240T, PL400T, PL420T, T610 and PL600T.
•
One free PCI slot.
•
MSCG044: AIX 4.3, or later.
•
MSCG049: AIX 5.1, or later for PL240T and PL420T.
2.10. PCI SCSI-3 LVD/Wide Adapter (MSCG041)
The PCI SCSI-3 LVD/Wide Adapter is a single ported Ultra2 (40 MHz) and wide (16-bit wide) SCSI
PCI Adapter that can provide synchronous SCSI bus data rates of up to 80 megabytes per second.
The PCI SCSI-3 LVD /Wide Adapter provides high performance attachment to both internal and
external SCSI disks, disk subsystems, tape devices. The maximum data rate depends on the maximum
data rate of the attached devices.
The PCI SCSI-3 LVD /Wide Adapter has one external VHDCI connector (68p) and one high-density
internal connector (68p). The Adapter is capable of addressing up to 15 LVD/SE devices. The number
of physical devices attached is limited by SCSI bus cabling restrictions. The adapter supports either 8-
bit or 16-bit devices.