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EK-424AA-UP-001

April 1992

12 pages

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Document:	MicroVAX 3100+VAXserver 3100 Opt Inst Addendum,RX26 Dsk Drive
Order Number:	EK-424AA-UP
Revision:	001
Pages:	12
Original Filename:

OCR Text

MicroVAX 3100 and VAXserver 3100
Options Installation Guide Addendum:
RX26 Diskette Drive
Order Number: EK-424AA-UP.001

April 1992
This addendum provides instructions for installing an RX26 diskette drive
option into the MicroVAX 3100 Models 10, 10e, 20, 20e and the VAXserver
3100 Models 10, 10e, 20, and 20e systems.

Digital Equipment Corporation

April 1992
The information in this document is subject to change without notice and should not be
construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation
assumes no responsibility for any errors that may appear in this document.
The software described in this document is furnished under a license and may be used or copied
only in accordance with the terms of such license.
No responsibility is assumed for the use or reliability of software on equipment that is not
supplied by Digital Equipment Corporation or its affiliated companies.
Restricted Rights: Use, duplication, or disclosure by the U.S. Government is subject to
restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer
Software clause at DFARS 252.227-7013.
© Digital Equipment Corporation 1992.
All Rights Reserved.
Printed in U.S.A.
The following are trademarks of Digital Equipment Corporation: DEC, MicroVAX, RX,
VAXserver, and the DIGITAL logo.

This document was prepared using VAX DOCUMENT, Version 2.0.

Note
Please insert the following pages in the MicroVAX 3100 and VAXserver
3100 Options Installation Guide, EK-424AA-TS-001.

1
RX26 Diskette Drive
RX26 Installation
This section describes how to install an RX26 diskette drive option into the
MicroVAX 3100 Models 10, 10e, 20, and 20e and the VAXserver 3100 Models 10,
10e, 20, and 20e systems.
CAUTION
Installation of this diskette drive should only be attempted by qualified
personnel. Improper installation can result in system damage for
which Digital is not responsible. Please contact your Customer Services
representative.

Option Contents
Verify that the contents of the RX26 diskette drive option are listed in Table
RX26-1.

RX26 Diskette Drive rx26–1

Table RX26-1–RX26 Diskette Drive Option Contents
Description

Part Number

Quantities

RX26 diskette drive

RX26-AA

FDI module

54-20764-01

Mounting bracket

74-38638-01

Rubber grommets

90-00018-02

Panhead screws

12-27886-02

Ribbon cable

17-00285-00

Diskette

30-30083-01

Cover (bezel) (Models 10 and 10e)

74-39959-01

Cover (bezel) (Models 20 and 20e)

74-39104-01

Standoffs (short)

90-11044-01

Standoff (tall)

12-23824-01

RX26 Diskette Drive Configuration Procedure
Before installing an RX26 diskette drive option, the identification (ID) number on
the RX26 diskette drive and FDI module must be configured.

Setting the Drive ID Number
The RX26 diskette drive has a drive ID switch that identifies the drive select
signal on the FDD interface to which device it will respond. To set the drive ID
number:
1. Locate the ID switch on the RX26 diskette drive. See Figure RX26-1.
2. Slide the ID switch to position 2 for the MicroVAX 3100 and VAXserver 3100
systems.

rx26–2 RX26 Diskette Drive

Figure RX26-1–Setting RX26 Drive ID Number

MLO-003383

LJ-01801-TI0

Setting the FDI ID Number
The RX26 diskette drive is not a small computer system interface (SCSI) device,
therefore requires an additional interface module (FDI) when used on a SCSI bus.
A switch pack on the FDI module allows selection of the SCSI device ID address
number. To select the SCSI device ID address number:
1. Bring the software operating system down and halt the system.
2. At the console prompt (>>>), enter the SHOW DEVICE command to
determine existing SCSI address IDs.
3. Choose an unused SCSI address.
Note
Choosing an unused SCSI address must be done to avoid possible address
duplication.

RX26 Diskette Drive rx26–3

4. Set the SCSI ID address using the switch pack on the FDI module.
Figure RX26-2 shows the location of the SCSI ID switches on the FDI
module and Table RX26-2 lists the possible SCSI ID switch settings.
5. Power down the system box and the expansion boxes (if applicable).
Figure RX26-2–RX26 FDI Module SCSI ID Switch Locations

OFF

ON
1

LJ-01802-TI0

rx26–4 RX26 Diskette Drive

Table RX26-2–RX26 SCSI ID Switch Settings
RX26 Switch Settings
ID Address on
SCSI Bus

Off

Reserved address ID for SCSI bus controller.

Recommended address IDs for RX26 drives on the SCSI-A bus.

Recommended address IDs for RX26 drives on the SCSI-B bus.

Reserved for the device with the highest priority on the bus.

RX26 Diskette Drive Installation Procedure
Note
The RX26 diskette drive option must be installed in the right-hand
storage compartment of the lower shelf on the MicroVAX 3100 Models 10,
10e, 20, and 20e, and the VAXserver 3100 Models 10, 10e, 20, and 20e
systems.

RX26 Diskette Drive rx26–5

To install the RX26 diskette drive option:
1. Insert the four rubber grommets into the four holes on the mounting bracket.
See Figure RX26-3.
2. Secure the bracket to the RX26 diskette drive using the four panhead screws
provided. See Figure RX26-3.
Figure RX26-3–Securing Mounting Bracket to RX26 Drive
Panhead Screw
(4 Places)
Rubber Grommet
(4 Places)
Mounting Bracket
RX26 Diskette Drive

MLO-003520
LJ-01803-TI0

rx26–6 RX26 Diskette Drive

3. Insert the four short standoffs to the drive mounting panel as shown in
Figure RX26-4.
Note
Use the tall standoff provided in the left rear mounting hole for the
MicroVAX 3100 Models 20 and 20e, and the VAXserver 3100 Models 20
and 20e. See Figure RX26-4.
Figure RX26-4–RX26 Diskette Drive Installation
RX26 Diskette Drive
Mounting Bracket
Captive Screw
(4 places)

Tall Standoff (1)
(Models 20/20e Only)

RX26 FDI Module
Holes for RX26
Mounting Bracket
(4 places)

Standoffs (4 places)
MLO-003522

Drive Mounting Panel
LJ-01804-TI0

4. Connect one end of the ribbon cable provided to the FDI module.
5. Attach the FDI module to the four standoffs. See Figure RX26-4.
6. Position the drive/bracket assembly and secure the assembly to the drive
mounting panel using the four captive screws on the bracket.

RX26 Diskette Drive rx26–7

7. Connect the SCSI cable to the 50-pin connector on the FDI module.
Note
When installing this option in the MicroVAX 3100 Models 20 and 20e and
the VAXserver 3100 Models 20 and 20e, trim the left rear (tall) standoff
to allow cable insertion.

8. Connect the other end of the ribbon cable from the FDI module to the RX26
diskette drive.
9. Connect the large 4-pin power connector to the FDI module and the small
4-pin power connector to the RX26 diskette drive.
10. Gently remove the blank plate out from the front bezel of the system box
using a flat screwdriver. Be extra careful not to damage the main bezel.
11. Insert the RX26 front bezel provided.
12. Reassemble the system. Refer to the system documentation for reassembly
procedures, if needed.
13. If applicable, make sure that the expansion boxes are powered-up. Power up
the system.
14. After power-up and successful completion of the self-test, verify the presence
of the newly installed RX26 diskette drive by entering the SHOW DEVICE
command at the console prompt (>>>). An "RX26" should appear under the
DEVTYPE column.
Note
VMS Version 5.4-3 or later supports the RX26 diskette drive.

rx26–8 RX26 Diskette Drive