CSS Laboratories ProRACK 8020 Series User manual

P/N CHAS-PRORACK-8020-DOC Revision 1, October 1997
User’s Guide
ProRACK 8020 Series
Rack Mount System
1641 McGaw Avenue
Irvine, California 92614

i
ProRACK 8020
CSS ProRACK 8020 Features
•Holds up to 9 front-loading, hot swappable 3.5 inch SCSI
disk drives with trays; 1 external 5.25 inch half-height
drive bay, 2 external 3.5 inch drive bays
•Available with SCSI-3
•Dual-redundant hot swappable 400 watt power supplies;
Optional dual 500 watt, 750 watt or 1000 watt load
sharing power supplies (not hot swappable)
•10-fan cooling system: 4 fans for passive backplane and
single board computer(s), 4 fans for disk drives and 1 fan
for each power supply
•Designed for a CSS 20-slot passive backplane with single
board computer(s)
•16 gauge steel chassis, 19” wide x 14” high x 25” deep

ii ProRACK 8020
FCC Standards
The FCC (Federal Communications Commission) restricts
the amount of radiation and radio frequency emissions
comingfromcomputingequipment.
Note: This equipment has been tested and found to comply
with the limits for a Class A digital device pursuant to Part
15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a
residential installation. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by
turning the equipment off and on, the use is encouraged to try
to correct the interference by one or more of the following
measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician
for help.
CSS Labs is not responsible for any radio or television
interference caused by unauthorized modifications to this
equipment. Operation with non-certified peripherals is likely
to result in interference to radio and TV reception.

iii
ProRACK 8020
To ensure compliance to FCC non-interference regulations,
peripherals attached to this device require shielded I/O cables.
NOTICE: The use of a non-shielded I/O cable with this
device is in violation of U.S. Federal law and will not allow
the device to meet the maximum emission limits.
CAUTION: Any changes or modifications not expressly
approved by the grantee of this device could void the user’s
authority to operate the equipment.

iv ProRACK 8020
NOTICE
The information within this manual is subject to change
withoutnotice.
CSS Laboratories Incorporated shall not be liable for
technical or editorial errors or omissions contained herein;
nor for incidental or consequential damages resulting from the
furnishing, performance, or use of this material.
No part of this publication may be reproduced, stored in a
retrieval system, or transmitted, in any form or by any means,
mechanical, photocopying, recordingor otherwise, without
the prior written permission of CSS Laboratories, Inc.
Product names mentioned herein are for identification
purposes only, and may be trademarks and/or registered
trademarks of their respective companies.
© 1997 by CSS Laboratories, Inc. All rights reserved
P/N CHAS-PRORACK-8020-DOC, Revision 1 October, 1997

v
ProRACK 8020
Table of Contents
Section 1 - Introduction
Overview ............................................................................ 1-1
The System Case................................................................ 1-2
The Front Panel ...........................................................1-2
Removable Drive Trays ...............................................1-3
3.5 Inch Drive Bays.....................................................1-3
5.25 Inch Drive Bay ....................................................1-3
Control Panel ...............................................................1-4
The Rear Panel ............................................................1-5
Power Supplies .................................................................. 1-6
Standard Power Supplies.............................................1-6
Optional Power Supplies ............................................. 1-6
Section 2 - Setting Up the System
Overview ............................................................................ 2-1
Unpacking the System........................................................ 2-1
Assembling the ProRACK ................................................. 2-1
Checking the Cables .................................................... 2-1
The Power Cord .......................................................... 2-2
The SCSI Cabling .......................................................2-2
Mounting the ProRACK In Your Rack.............................. 2-3
Starting Up.........................................................................2-4

vi ProRACK 8020
Section 3 - Using the System
Overview ............................................................................ 3-1
Installing SCSI Disk Drives............................................... 3-1
Passthru Inner Facing.................................................. 3-1
Passthru Outer Facing................................................. 3-2
Mounting the Drive in the Tray ................................... 3-2
Connecting the Drive to the Host System.................... 3-3
Installing 3.5 Inch and 5.25 Inch Drives............................ 3-3
Using The Power Supplies................................................. 3-4
Changing Out Power Supplies..................................... 3-4
Setting 110 or 220 VAC .............................................. 3-6
Standard Maintenance........................................................ 3-7

vii
ProRACK 8020

1-1
ProRACK 8020
Section 1 - Introduction
Overview
The ProRACK 8020 Rack Mount System is a hardened
industrial grade chassis which supports up to nine 3.5 inch
SCSI-3 hot-swappable drives mounted in removable drive
trays secured to the chassis by a standard keylock; and a 20-
slot passive backplane with up to four single board
computers.
The ProRACK also provides one 5.25 inch half-height drive
bay and two 3.5 inch drive bays, for removable flopy drives.
The assembly is powered by 400 watt dual redundant, hot
swappable power supplies. The supplies are mounted in a
slide tray which is accessable at the rear of the chassis.
This unit is also available with optional dual 500 watt, 750
watt or 1000 watt load sharing power supplies. These
supplies are not hot swappable.
The ProRACK 8020 is cooled by a total of ten fans. One set
of four fans are mounted behind the SCSI drives. Another set
of four fans are mounted on the rear of the chassis, cooling
the passive backplanes, single board computers and add-in
boards. Each power supply has a dedicated cooling fan.
.

1-2 ProRACK 8020
The System Case
The 16 gauge steel chassis measures 19” wide x 14” high x
25” deep.
TheFront Panel
The front of the chassis provides access to the following
features:
• Up to nine front loading SCSI drives with tray keylocks
and LEDs
• Two 3.5 inch drive bays
• One 5.25 inch drive bay
• Control panel for up to four segments of a segmented
passive backplane
•ON/OFF switches for each of the dual power supplies
• Locking front door (not pictured)
12 Speed
VOL compact
disc
Power Supply 1
ON/OFF Switch
Power Supply 2
ON/OFF Switch
Front Loading
Drive Bays
3.5" Drive Bays 5.25" Drive Bay
Dual Redundant
Power Supplies
(loads from rear)
Control Panel
Figure 1-1: The ProRACK Front Panel

1-3
ProRACK 8020
RemovableDrive Trays
Each drive tray is provided with a keylock and two LEDs.
The keylock prevents accidental removal of the tray, and
maintains the drive’s connection to the power supply.
The LEDs indicate power on status and data access activity
of the SCSI drive.
3.5 Inch Drive Bays
The ProRACK provides two 3.5 inch external drive bays,
typically configured with floppy drives. The illustrations in
this manual show a system with two removable 3.5 inch
floppy drives installed. These drives are held in place with a
simple thumb screw, and are easily removed.
5.25 Inch Drive Bay
A 5.25 half-height external drive bay is also provided with
the chassis. The illustrations in this manual show a CD-ROM
drive installed in the bay.
Tray Lock Power LED
Access LED
Figure 1-2: The Removable Drive

1-4 ProRACK 8020
ControlPanel
The control panel provides reset buttons and power ON/OFF
switches for up to four segments of a segmented passive
backplane.
Each segment of a backplane can be configured with a single
board computer, creating a complete system. Depending on
your particular configuration, up to four complete systems
can be installed in the ProRACK 8020.
Be sure to record your ProRACK’s configuration, noting
which set of segment controls are assigned to which segment.
TheSegment Power ON/OFF switch controls the power to
the assigned segment. ThePower LED associate with the
ON/OFF switch lets you know that the segment isreceiving
power from the power supply.
Each of the Dual Power Supplies provide separate ON/OFF
switches on both the front and rear panels.
Thelocking front door limits access to the drives and control
panel. A smoked glass cover allows you to view the LED
indicators on the control panel.
Figure 1-4: The Control Panel
Power ON/OFF
Buttons Reset Buttons
Segment 1
Segment 2
Segment 3
Segment 4

1-5
ProRACK 8020
TheRear Panel
The rear panel has these features:
• Serial port options
• Parallel port options
• Single Board Computer ports: keyboard, on-board serial
•4-unit fan pack
•Dual power supply ON/OFF switches
• Expansion slot covers
Serial and parallel port options are available on through the
Single Board Computer feature slot, or through an associated
feature connector slot on the rear of the chassis.
115 115
Load Sharing Swappable
Power Supplies
4-Unit Fan Pack
Port
Connectors
Figure 1-5: The Rear Panel

1-6 ProRACK 8020
TheSingle Board Computerprovides access to several
features through the feature connector slot. The features can
include a keyboard connector, mouse connector and parallel
port connector.
The 4-unit fan packprovides cooling for the passive
backplane, Single Board Computer(s) and add-in boards
installed in the chassis.
Thedual power supplyprovide separate ON/OFF switches
for the supplies on both the front and rear panels.
The rear panel also provides twentyfeature connector slots
for up to twenty boards.
Power Supplies
StandardPowerSupplies
The 400 watt dual redundant power supplies provide enough
power for a fully loaded system. Each supply is 110 VAC at
60 Hz, or 220 VAC at 50 Hz. The supplies are easily changed
out.
OptionalPower Supplies
The ProRACK is also available with dual load sharing 500
watt, 750 watt or 1000 watt power supplies. These are
permanently mounted in the chassis, but with a little effort,
can be easily easily changed out.

2-1ProRACK 8020
Section 2 - Setting Up the System
Overview
This section describes the assembly of the ProRACK
System. Once everything is connected, the system will be
ready to power up and put to use.
You will mount the slide rails on the system chassis and
install the ProRACK in your 19” equipment rack. You will
also connect the power cord(s) to the power supplies at the
rear of the chassis.
Unpacking the System
Before proceeding, review this list:
•The system unit
•The slide rail assembly
•Power cord(s)
Assembling the ProRACK
CheckingtheCables
Remove the top of the chassis and perform a visual check of
all cabling. Make sure the SCSI cables and power
connectors, add-in boards and cabling are all firmly seated.
Replace the top and proceed with the installation.
If you are installing disk drives in to the chassis, refer to the
instructions for installing disk drives, given in section 3 of
this manual.

2-2 ProRACK 8020
The Power Cord
The ProRACK comes with twoinsulated, grounded, three-
pronged power cords, one for each supply. Plug the male end
of the power cord into a grounded outlet.CSS strongly
recommends that you use a surge protective device or unit
withthisandallcomputer equipment.
The SCSI Cabling
It is recommended that you label the drive bays, indicating
SCSI strings, LUNs and segment assignments. Your
arrangement of SCSI drives should be documented and
available before you begin using your ProRACK system.
115 115
Load Sharing Swappable
Power Supplies
4-Unit Fan Pack
Port
Connectors
Figure 3-1: The Rear Panel

2-3ProRACK 8020
Mounting the ProRACK In Your Rack
Follow these steps to install the slide rails on the ProRACK
chassis and mount the ProRACK in your equipment rack:
1) Slide the smallest interior portion of the slide completely
out of the assembly.
2) Mount the smallest interior portion of the slide to the
chassis, using the #6/32 screws provided.
3) Mount the forward bracket (smallest of the pair) to the
front of the largest portion of the slide. Use two of the
#10 flat head screws provided.
• The flat head of the screw will be on the inside of the
slide.
• Put a flat head screw washer next to the bracket
assembly, followed by a lock washer and a nut.
• Adjust the bracket until it is even with, or slightly
ahead of the front of the large portion of the slide.
• Tighten the screws and nuts.
4) Mount the rear bracket (longest of pair) to the rear of the
largest portion of the slide.
•This bracket is an extender. You will need to match up
holes that will let you mount the bracket to the rear rail.
•Hand tighten the screws and nuts. Tighten theseafter
the ProRACK is installed.
5) Reassemble the slides.
6) When you mount the ProRACK, the front of the bracket
will mount to the rear of your rack’s forward rail. The
rear extender may be mounted in front of, or behind the
rear rail. The brackets are mounted to the RETMA rails
using #10 screws.

2-4 ProRACK 8020
Starting Up
Follow these steps:
1) Power up all peripherals first, i.e. printer and monitor.
2) Turn the system’s ON/OFF toggle to the ON position.
3) The system will boot, and load its operating system.
The system’s BIOS is configured at the factory with default
settings. You can reconfigure the BIOS at any time. Refer
to your system’s ConfigurationUtilitiesdocumentation.