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Chapter 3: AVoption|XL Hardware Overview

9

2:1 Video Compression or 1:1

Uncompressed

Sync Hardware

Synchronization Peripheral

AVoption XL requires a Universal Slave

Driver (USD).

Sync Source

For accurate synchronization during cap-

ture and playback, a house sync source or

black burst generator is required.

Storage Hardware

SCSI Accelerators

To support the high transfer rates required

by AVoption XL video, a qualified SCSI ac-

celerator is required, with audio drives con-

nected to one channel and video drives

connected to the other channel. For 2:1

compression or 1:1 uncompressed video, 2

SCSI accelerators are required.

SCSI Hardware and Drives with

Video Compression Level 3:1 or

Higher

If you are using 3:1 video compression or

higher at all times, then your system re-

quires only a single dual channel SCSI ac-

celerator, the ATTO EPCI-UL2D or EPCI-

DC, or the Digidesign SCSI 64, with audio

drives connected to one channel and video

drives connected to another.

✽

Other SCSI accelerators may be qualiﬁed.

Refer to the compatibility information on the

Digidesign Web site for more information.

Using Two Hard Drives

For scenarios that do not require a high

audio track count or a very long video seg-

ment, use two hard drives.

In this scenario, one drive is used to record,

import, and play back audio data, and one

drive is used to record, import, and play

back the video.

Minimum AVoption XL System Requirements

Item Minimum Requirement

CPU Power Macintosh 9600,

Blue & White G3 or G4

PCI Expansion

Chassis

Magma 13-Slot

SCSI accelerator

(video)

Qualiﬁed SCSI Accelerator

(ATTO EPCI-UL2D LVD Accel-

erator required for 2:1 or

1:1 video compression)

SCSI accelerator

(audio)

Qualiﬁed SCSI Accelerator

(ATTO EPCI-DC or Digidesign

SCSI 64 required for 2:1 or

1:1 video compression)

SCSI hard drives Qualiﬁed drives are

required; see the Digidesign

Web site for more informa-

tion.

Striped hard

drives

A 2-way stripe is required for

2:1 compressed video.

A 4-way stripe is required for

uncompressed (1:1) video.

Sync peripheral Universal Slave Driver (USD)

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