User`s guide
AVoption & AVoption XL Guide26
Installing the ATTO EPCI-UL2D
SCSI Accelerator
To install the ATTO EPCI-UL2D SCSI Accelerator:
1 Unplug and open your expansion chassis ac-
cording to the instructions included with it.
2 Release any static electricity by touching the
power supply, or another grounded item.
3 Remove the ATTO card from the antistatic
bag, being careful to handle it only by the edges.
4 Line up the ATTO card with the installation
slot, and slide the card into place gently so the
PCI connector is aligned with the PCI slot.
5 Press down firmly on the card with even pres-
sure. The connector should click into place in
the PCI slot.
6 Fasten the card in place using the included
screw to attach the card bracket to the computer
mounting bracket.
Flashing SCSI ROM with ATTO
ExpressProTools
ExpressPro-Tools is supplied with Pro Tools 5.1
and every ATTO SCSI card, and allows you to
flash the ROM on the SCSI card. Digidesign
strongly recommends that the firmware be set
on SCSI channels where audio storage is con-
nected as follows:
1 Launch ExpressPro-Tools after booting your
system and mounting all drives.
2 Double-click Media Drive.
3 From the Sync Rate pop-up menu, select
“20 (10)” (20 MB/sec at 10 MHz).
4 Click “Apply to All” (sets the card for all drive
IDs on that bus).
5 Repeat if necessary for the other bus.
6 Quit ExpressPro-Tools.
7 Restart you computer.
These settings are optimized for the size and fre-
quency of SCSI transactions demanded by
Pro Tools. You do not need to apply these set-
tings to the second SCSI card if one is installed
for video media with AVoption XL.
Initializing Hard Drives
The following is hard drive initialization infor-
mation for three different scenarios: Pro Tools
with no interchange, Avid to Pro Tools, and
Pro Tools to Avid.
ATTO UL2D LVD SCSI Accelerator
Pro Tools and AVoption XL do not support
striped audio drives.










