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EK-346AA-IG-A01

March 1995

10 pages

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Document:	StorageWorks Installing the 5.25-Inch Device Option (BA35X-AA)
Order Number:	EK-346AA-IG
Revision:	A01
Pages:	10
Original Filename:

OCR Text

Installing the 5.25-Inch Device
Option (BA35X–AA)
Solutions
What to Do
You need the following items to install the 5.25-inch
device option in a BA346–K series deskside expansion
pedestal:

•
•
•

•
•

Complete the procedures in “Preparing for the
Installation,” see page 3.

Complete the procedures described in “Installing the
Option,” see page 4, and:

A compatible 5.25-inch storage device

•
•
•

The installation kit
Electrostatic discharge (ESD) protection (either an
ESD mat or an ESD wrist strap). Familiarize
yourself with using an ESD strap as described in
“Using an ESD Strap,” (page 10).
Common hand tools
StorageWorks Solutions BA346–K Series Deskside
Expansion Pedestal Users Guide

Review this installation guide to become familiar
with the installation procedures and the kit
components.

Read the storage device publications so that you are
familiar with device and its components. Pay
particular attention to:

•
•

Procedures for disabling the internal SCSI bus
termination.
Procedures for setting the internal SCSI bus
address.

“Installing the Modular Carrier,” see page 6
“Setting the Configuration Address,” see page 8
CAUTION

The only valid SCSI device addresses for the 5.25-inch
devices are 0 through 6.

•

Complete the installation procedures in the following
order:
1.

“Mounting the Device,” see page 5

“Completing the Installation,” see page 10
CAUTION

Electrostatic discharge (ESD) can damage storage
devices. To prevent this you must take one of the
following precautions:

•
•
•

Place an ESD mat on the work surface before
starting the procedures. Place the components on the
mat while assembling the SBB.
Wear an ESD wrist strap whenever you handle any
of the electronic components (see “Using an ESD
Strap,” see page 10).
Do not touch the device connectors.

Complete the procedures described “Planning the
Installation,” see page 2.

Note

Complete the procedures described in “Inventorying
the Installation Kit,” see page 2.

These installation procedures are only valid for storage
devices that comply with the appropriate product safety
requirements of UL1950, CSA950, or EN60 950.

™ StorageWorks is a trademark of Digital Equipment Corporation.
© Digital Equipment Corporation 1995
Printed in the U.S.A.
All Rights Reserved.

EK–346AA–IG. A01
March 1995

Setting the Configuration Address

Planning the Installation

Inventorying the Kit

Planning the installation involves completing the
following actions

Refer to Figure 1 and inventory the contents of the
installation kit per Table 1.

•

Table 1 Installation Kit Contents

•
•
•

Selecting the storage devices to include form-factor
(half-height, full-height)
Determining half-height storage device location in
the modular carrier (upper, lower), mounting
hardware, and mounting hole locations.
Determining the pedestal configuration address (see
“Setting the Configuration Address,” see page 8)
Determining the device addresses

Part
Modular carrier with filler panel

Qty
1

j
1
k Input cable, 5.25-inch device
cable, 68-pin female to 50-pin
2
l Adapter
female
Screw, flat head, 6–32 x 0.250 in*

0.25 in

Screw, flat head, M3 x 5 mm

5 mm

Figure 1 Installation Kit Components

CXO-4611A-MC

*
The drawing shows the relative, not the actual,
screw size.

Preparing for the Installation

Preparing for the Installation
Complete the following procedure to prepare the pedestal
for installing the option:
1.

Turn off the power to both the controller and the
pedestal.

Disconnect the ac power cord.

Disconnect the external SCSI bus cables.

Remove the front door by lifting it up and off the
hinge pins.

Refer to Figure 2 and remove the left-side cover
screw.

Grasp the side cover rear hand hold (Figure 3 ) and
pull the cover to the rear and remove.

Note the configuration address (jumpers W1-W3,
J18).

Disconnect the I/O cable from J10 on the backplane.

Remove the screws connecting the I/O cable to the
rear panel and remove the cable. Save the screws for
installing the 5.25-inch device I/O cable.

Figure 2 Removing the Side Cover

E
COVER
SCREW
CXO-4435A-MC

Figure 3 Side Cover Hand Hold

HAND
HOLD

CXO-4556A-MC

Installing the Option

Installing the Option
Installing the 5.25-inch device option in the pedestal
involves the following actions:

Removing the Pedestal Filler Panel

•

Removing the pedestal filler panel.

Refer to Figure 4 and remove the pedestal filler panel

•

Installing the device in the modular carrier.

Note

•

Mounting the modular carrier in the pedestal.

•

Setting the configuration address.

There are two 5.25-inch device filler panels; one in the
pedestal and one in the modular carrier. The pedestal
panel is always removed.

•

Installing the side cover, connecting the cables, and
checking the pedestal for proper operation.

Setting the Device SCSI Address
See “Setting the Configuration Address” and select the
device address for each 5.25-inch device. All devices on a
single SCSI bus must have a unique address. Set the
device address per the device manufacturer’s
instructions.
Figure 4 To Remove the Pedestal Filler Panel

BEZEL

1 REMOVE SCREWS
2 GENTLY PUSH BEZEL FORWARD
3 PULL OUT FILLER PANEL
4 REPLACE SCREWS
CXO-4558A-MC

Mounting the Device

Mounting the Device
As described in the following sections mounting the
5.25-inch device involves removing the modular carrier
device filler panel and then installing the device in the
modular carrier.

Removing the Device Filler Panel
The device filler panel is factory installed. No action is
required when installing the first half-height device.
When you are installing either a full-height, or two
half-height devices you must remove this panel by
completing the following procedure:
CAUTION

Installing the Device
As shown in Figure 6, the modular carrier has multiple
mounting holes and two mounting slots. The device form
factor (half-height or full height) as well as the specific
device determines the mounting holes used. The general
configuration rules are:

•

A single half-height device is mounted in the top slot

•

A full height device is mounted in the bottom slot

See Figure 6 and complete the following procedure to
mount the device in the modular carrier:
1.

When there is a single half-height device installed the
device filler panel maintains air flow through the device
and the power supply. Remove this panel only when
installing two half-height devices or a full-height device.
1.

Refer to Figure 5 and remove the filler panel
mounting screw from the left side of the modular
carrier.

Pull the left side of the filler panel to the front.

Disengage the filler panel tabs from the slots on the
right side of the modular carrier and remove the
panel.

Determine the mounting holes to be used by
inserting the device into the carrier and moving it so
that the slots in the rear and the mounting holes in
the front align with the mounting holes in the
device.

Figure 6 Device Mounting Holes

Figure 5 Device Filler Panel Location

FRONT
CXO-4475A-MC

Insert the device mounting screws and tighten them.

When the device has a 50-pin input connector,
connect a 68-pin to 50-pin adapter cable to the each
device.

Connect the 5.25-inch device cable to the device or
the adapter cable.

FILLER
PANEL
MOUNTING
SCREW
CXO-4486A-MC

Installing the Modular Carrier

Installing the Modular Carrier
Complete the following procedure to install the modular
carrier in the pedestal:
1.

Remove the two mounting screws from the pedestal.

Disconnect the input cable from backplane connector
J10. Remove the input cable connector from the
pedestal rear panel.

For devices with a 50-pin SCSI connector install the
68-pin to 50-pin adapter cables.

Connect the 5.25-inch I/O cable to the devices.

As shown in Figure 7 there are two hooks on the
right side of the modular carrier. These hooks fit into
slots on the right side of the pedestal.

Align the top front of the modular carrier with the
notch in the top edge of the pedestal (see Figure 8).
Slide the carrier into the pedestal and push it against
the right side.

Guide the 5.25-inch device I/O cable through the
cable slot by the power supply. Connect the cable to
backplane connector J10.

Figure 8 Modular Carrier Installation
ADAPTER
CABLES

NOTCH

Figure 7 Modular Carrier Hooks

J10
SLOT 0
INPUT
CABLE

SLOT 1

SLOT 2

J11

SLOT 3

J16

SLOT 4

SLOT 5

SLOT 6
J17
MOUNTING
TABS
CXO-4485A-MC

CXO-4559A-MC

Installing the Modular Carrier
7.

Connect the dc power connectors to the devices (see
Figure 9).

Slide the carrier forward so that the hooks engage
the slots in the pedestal. The modular carrier
mounting holes must align with the pedestal
mounting holes.

Install the carrier mounting screws removed in
Step 1.

Figure 9 DC Power Connections

10. Mount the 5.25-inch device I/O cable connector in
the top position on the rear panel.
J10

J12

J11

J16

J13

J17

CXO-4480A-MC

Setting the Configuration Address

Setting the Configuration Address
There are both configuration addresses and device
addresses. Jumpers W1-W3 determine the eight
configuration addresses that can be used for both 8-bit
(addresses 0-6) and 16-bit (addresses 0-6 and 8-14)
devices.

Use jumpers W1-W3 to set the address configurations.
Figure 10 shows the location of connector J18 and the
jumpers. Table 2 lists the slot addresses assigned for
each of the eight address configurations. Figure 11 shows
the basic 5.25-inch device configuration cabling.

Note

CAUTION

SCSI device address 7 is the SCSI controller address.

All devices on a single SCSI bus must have different
device address. Duplicate addresses will cause the SCSI
bus to malfunction. Refer to “Setting the Device SCSI
Address.”

Figure 10 Address Configuration Jumpers
J14
J9
J18
W3
W2
W1

J17

CXO-4476A-MC

Figure 11 Basic 5.25-Inch Device Configuration
68-PIN TO
50-PIN ADAPTERS

J10
SCSI ADDRESS 0
INPUT
CABLE

SCSI ADDRESS 1

SCSI ADDRESS 2

J11

SCSI ADDRESS 3

J16

SCSI ADDRESS 4

JUMPER
CABLE
IN
J18
OUT

SCSI ADDRESS 5

W1 W2 W3
TERMINATOR

SCSI ADDRESS 6
J17

CXO-4490A-MC

Setting the Configuration Address

Standard Configuration Addresses and Slot Addresses
Table 2 Standard Configuration Addresses and Slot Addresses
Configuration 1 
(Dual Bus only)

W
1

W
2

SCSI Addresses

Configuration 2
Standard
Configuration

Slot 0
Address 0

1
1

2
2

3
3

4
0

5
1

6
2

W
3

SCSI Addresses
  
Slot 0 1 2 3 4 5 6
Address 0
W
1

W
2

1 2 3 4
9 10 11 0

5
1

6
2

5
5

6
6

W
3

SCSI Addresses
  
Slot 0

Configuration 3

Address 8
W
1

Configuration 4

W
2

W
3

SCSI Addresses
  
Slot 0 1 2
Address 8
W
1

W
2

3
9 10 11

4
4

W
3

SCSI Addresses
  
Slot 0 1 2 3 4 5 6

Configuration 5

W
1

W
2

Address 0

Configuration 6

9 10

W
3

SCSI Addresses
  
Slot 0 1 2 3 4
Address 0
W
1

W
2

5 6
3 12 13 14

W
3

SCSI Addresses
  
Slot 0 1

Configuration 7

Address 8
W
1

Configuration 8

W
2

2 3 4
9 10 11 8

5 6
9 10

W
3

SCSI Addresses
  
Slot 0 1 2 3 4 5
Address 8
W
1

W
2

6
9 10 11 12 13 14

W
3

LEGEND:

16-bit devices only

Completing the Installation

Completing the
Installation

Using an ESD Strap

Compete the following procedure to complete the
installation:

When you do not have an ESD mat or other ESD
protection, you must use an ESD wrist strap as shown in
Figure 12 when mounting the storage device in the modular
carrier.

Check that the bus configuration, to include
configuration address is correct.

Figure 12 Grounding the ESD Strap

Replace the side cover.

CONNECT TO UNPAINTED,
GROUNDED, METAL SURFACE

CAUTION
Install the side cover before turning the power on.
3.

Connect the external SCSI cable and the ac power
cord.

Turn on the pedestal and check that the pedestal is
operating properly and that the devices respond when
the SCSI bus is active.
ESD GROUNDING
STRAP

CXO-4294A-MC

March 1995
Digital Equipment Corporations makes no
representations that the interconnection of its products in
the manner described in this document will not infringe
existing or future patent rights, nor do the descriptions
contained in this document imply the granting of license
to make, use, or sell equipment or software in accordance
with the description.
This product has not been tested for compatibility with
all other products or devices supplied by Digital
Equipment Corporation or third parties. Unless
specifically stated by Digital to the contrary, purchaser
assumes all responsibility for testing and ensuring the
Digital StorageWorks products, when combined with
other products, address their particular needs.
StorageWorks and the DIGITAL logo are trademarks of
Digital Equipment Corporation.