LSI ITI8000 Series, User Manual, Page: 59 / 80

Cabling SCSI Devices 3-11
Rev. 1.0 Copyright © 2000–2001 by LSI Logic Corporation. All rights reserved.
Also, this ensures compliance with regulatory agency approval for
system emissions. You can trace most problems encountered during the
initial installation of a SCSI system to improper or low quality cabling and
termination. LSI Logic carries a complete line of high quality SCSI
cables, which you can order to meet the requirements of your
configuration.
Note: In order to ensure optimal signal integrity in the Ultra2 SCSI
LVD environment, a differential pair (twisted pair) cable
must be used on all LVD segments of the bus.
3.5.1 LVD/SE SCSI Cable Selection Guide
Table 3.1 describes the available cables for use with the ITI8200 Series
CompactPCI adapters.
The ITI8200 Series adapter greatly increases the configuration flexibility
for SCSI while it allows increased performance two to four times over
previous generation products. LVD technology allows multidrop cables up
to 12 meters, while operating at 80 Mbytes/s. You must provide LVD
termination to the end of the bus. To maximize the performance of the
ITI8000 Series adapter, follow these general rules:
Table 3.1 SCSI Cable Selection Guide
Cable Description BUS
Length
Meters
Adapter
Connector
Device
Connector Part Number
Internal 68-pin ribbon,
LVD differential high
density, 5 position (1
adapter & 4 devices) with
built in LVD/SE Terminator 16-bit LVD/SE
internal 1.0 68-pin high
density 68-pin high
density 50-401030
External 68-pin high
density to 68-pin micro 16-bit LVD
external 1.0 68-pin high
density
micro 68-pin high
density
male, right
angle 50-500175
External Adapter Cable,
68-pin micro to 68
position high density
receptacle. 16-bit LVD
external 0.2 68-pin
micro 68-pin high
density
receptacle 50-500170