Table 1.3 transmission mode distance requirements, 1 features, Features – Avago Technologies LSI53C140 User Manual

Page 16: Transmission mode distance requirements

1-6

Using the LSI53C140

Ver. 2.1

Table 1.3

shows the various distance requirements for each transmission

mode.

1.2.1 Features

The LSI53C140 supports these features:

•

Any combination of LVD, SE, or HVD transceivers

•

Creates distinct SCSI bus segments that are electrically isolated
from each other

•

Integrated LVDlink transceivers for direct attachment to either LVD,
SE, or HVD bus segments

•

Operates as a SCSI Bus Expander

–

LVD to LVD (Ultra2 SCSI)

–

HVD to HVD (Ultra SCSI)

–

SE to SE (Ultra SCSI)

•

Operates as a SCSI Bus Converter

–

LVD to HVD (Ultra SCSI)

–

LVD to SE (Ultra SCSI)

–

HVD to SE (Ultra SCSI)

•

Targets and initiators may be located on either the A or B Side of the
device

Table 1.3

Transmission Mode Distance Requirements

Segment

Mode

Length Limit

A, D

LVD (Ultra2)

25 meters

SE (Ultra)

1.5 meters

HVD (Ultra)