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EPSON
Product Support Bulletin
Subject: Proper Method for Running Benchmark and Diagnostics Programs
Date: 06/04/93
Page(s): 1 of 1
PSB No: S-0158
Originator: MWT
This bulletin describes the proper method for running any benchmark or diagnostics
programs. This applies to any computer system.
In most cases, the computer should be started using an MS-DOS boot diskette
that’s ‘clean’ - in other words, one with no CONFIG.SYS or AUTOEXEC.BAT files.
The appropriate executable can then be run, either from diskette or hard drive.
There will be some exceptions to the above rule. In attempting to benchmark or
troubleshoot any add-on that requires a device driver (CD-ROM, local area network,
etc.), obviously the necessary device driver(s) must be loaded. Also, some
programs will require a minimum number of FILES or BUFFERS to be defined in
the CONFIG.SYS file. Such programs will usually display this requirement if they
are run without the necessary CONFIG.SYS file.
For the most consistent results, use the absolute minimal boot configuration that’s
allowed by the hardware being tested.
EPSON
Product Support Bulletin
Subject: Equity Series SIMM Compatibility
Date: 12/4/91
Page(s): 1 of 1
PSB No: S-0136
Originator: JAD
Due to the influx of third party SlMMs on the market, there are some that are not
compatible with Epson products. This bulletin is intended to be an aid in ensuring
that only compatible SlMMs are chosen for use in Epson’s Equity Series of
computers.
The SlMMs in question were SEIMENS, CUMULUS and KINGSTON. Installing these
SlMMs in Epson products may cause the following errors:
Parity Check 1
18FFFE 0000 202 Memory Address Error
164 System Options Not Set
1500 E000 201” DOS RAM Address Error
It was thought that the chips used in these SlMMs were of poor quality.
Epson Portland evaluated the SlMMs in question and found that this was not true.
The problem is caused by the SIMM circuit boards (ITE and TECAP circuit boards)
used to manufacture the SIMM modules. The dimensions of these boards are not
compatible with industry standard SIMM sockets. This may result in incomplete
contact between the SIMM assembly and it’s socket. This is caused by insufficient
size of the contact surfaces in these products. Also enlarged holes in the TECAP
product allow the component pin to pass entirely through the hole without making
contact.
It is recommended that only SIMMS meeting industry standard contact surface
specifications be used in Epson Equity computer products.
Some recommended SlMMs that were tested and found Compatible are:
Toshiba
Matsushita
CDC Enterprises
Samsung
Aculogic
For more information contact Technical Support.
EPSON
EPSON AMERICA, INC.
INFORMATION
Product Support Bulletin
Subject:
Maximum Number of Printers Supported by Current Equity Computers
Date: 02/06/91
Page(s): 1 of 1
PSB No: S-0128
Originator: KAS
As computing environments increase in complexity, there has been an increasing
number of instances that require the support of several printers by one computer.
One common example is that of using Novell Netware’s print server capabilities to
provide printer access to a large group of users with differing printer requirements.
Netware is capable of supporting three (3) parallel and two (2) serial printers on one
server. Recent testing has shown that the Equity 386/25 Plus, Equity 386/25, Equity
386/20 and the Equity 386SX Plus will support three (3) parallel ports along with two
(2) serial ports. The key factor in providing support for a third parallel port is the
need for a parallel interface card that can be set to the IBM Monochrome
Graphics/Parallel printer I/O address at 3BCh. The computer looks for this address
first and, if present, will assign the parallel port on that card as LPT1. The built-in
parallel port (I/O address 378h) will then be addressed as LPT2. We also had an
AST I/O Mini serial/parallel card addressed at l/O address 278h, which was then
reassigned to LPT3. Each of the three parallel ports was attached to a printer. There
was also a printer attached to each of the two serial ports. All five printers were then
set to print simultaneously under Netware Version 2.15 Rev. C using PCONSOLE. All
five printers were able to print the documents assigned to them, simultaneously. The
units were then tested using WordPerfect 5.1 on the network and again were
successful in printing to the five (5) printers at the same time. The last tests were run
with the units booting under DOS 4.01 and screen prints being directed to each of
the printers. WordPerfect 5.1 was also used to direct documents to each of the
printers. Again all five (5) printers were able to print the files that were sent to them.
Although not all Equity computer models were tested in this situation, the Equity
models 386SX, lIe, Ill+ and II+ should work in a similar manner if the instructions
above are used as a guide. There is one item of which to be aware when using the
this setup and that is the system will complete the RAM count and lock up if using a
monochrome monitor. If you need to use three parallel ports, USE A COLOR
MONITOR.
Product Support Bulletin
Subject:
Novell Advanced NetWare 286 ND on an 80386 - based Server
Date:
Page:
4/11/90
1 of 1
PSB No:
Originator: MWT
This bulletin is to inform you of a potential problem that can occur when
running Novell Advanced NetWare 286 in non- dedicated (ND) mode on an
80386 - based file server. This includes the Equity 386/20 and the 386SX.
When a DOS command is executed on the ND server and there is moderate
network activity, the system may halt with the following error message:
Abend: INVALID TASK STATE INTERRUPT
This is apparently due to some 80286 - specific protected mode operations that’
do not function quite the same way when executed on an 80386. This has
been observed in the following NetWare versions:
Advanced NetWare
Advanced NetWare
Advanced NetWare
Advanced NetWare
Advanced NetWare
ELS Level I
ELS Level II
286
286
286
286
286
2.0a
2.11
2.12
2.15a
2.15b
Note that the problem does not occur with the latest version, Advanced
NetWare 286 2.15c. Unless this version of NetWare 286 is being used, we
cannot recommend non - dedicated file server operation with any Epson
80386 - based computer.
EPSON AMERICA, INC.
INFORMATION
Product Support Bulletin
Subject:
Equity Series Computers and Lotus 1 - 2 - 3 Release 3.0
Date:
Page:
12/7/89
1 of 1
PSB No:
Originator:
S-0108
KAS d(+#
The advent of Lotus 1 - 2 - 3 Release 3.0 has raised a number of questions
regarding memory management for the Epson Equity computers, specifically the
Equity 386/20, Equity 386SX and Equity Ile. The purpose of this document is
to discuss the memory requirements for Lotus 1 - 2 - 3 Release 3.0 and
recommendations for installation.
Because programs run significantly faster with extended memory, Lotus
recommends that you configure as much memory as possible as extended
memory.
When installing Lotus 1 - 2 - 3 Release 3.0 on the Equity 386/20 or the Equity
386SX, do not use the EMS managers supplied with the system software
(EEMM386.EXE for the Equity 386/20 and EMM386.SYS for the Equity 386SX).
Neither of these EMS managers support the Virtual Control Program Interface
(VCPI) which is required for compatibility with Lotus 1 - 2- 3 Release 3.0.
NOTE: Should you require an EMS manager for your Equity 386/20 or Equity
386SX, there are third party software packages available that are compatible
with Lotus 1 - 2 - 3 Release 3.0. Two such packages are 386m version 4.03
or later, and Quarterdeck Expanded Memory Manager (QEMM) version 4.2 or
later.
Do not use VDISK with the /E switch when running Lotus on the Equity
386/20. Though Lotus Release 3.0 will load, it will overwrite any data in the
RAMDISK. VDISK supplied for both the Equity Ile and Equity 386SX is
compatible with Lotus 1 - 2 - 3 Release 3.0 and does not have a problem with
ovewriting data in the RAMDISK.
When installing Lotus 1 - 2- 3 Release 3.0 in the Equity lIe, use the EEMM286
memory manager in the hardware - emulation EMS mode. To do this, set
memory as expanded memory on the Equity lIe and do not specify the
expanded memory size. When the Equity lIe has only 1Mb system memory,
you must select on - board memory type 5 in SETUP. When the Equity lIe
has more than 1Mb of system memory, you must select type 3, 4 or 5.
Avoid the use of HDCACHE when installing Lotus 1 - 2 - 3 Release 3.0 on any
of the Equity computer systems discussed in this document.
Product Support Bulletin
Subject:
Date:
Page:
Equity 386SX Questions and Answers
PSB No: S-0106~ 5
Originator: DS/PM k, -
10/01/89
1 of 8
Questions and Answers on the Equity 386SX
GENERAL:
Q1.
A.
Q2.
A.
Q3.
A.
Q4.
A.
What microprocessor does the Equity 386SX use?
The Equity 386SX utilizes the Intel 80386SX - 16 microprocessor
running at 8 or 16Mhz. Use of this CPU gives you 386 performance
and compatibility in a 16 - bit based computer architecture.
What speed does the Equity 386SX operate at?
The Equity 386SX operates at either a 16Mhz or 8Mhz processor
speed. The speed can be set by using the CPU speed switch
located on the front of the machine. At either processor speed, the
system bus operates at a fixed speed of 8Mhz.
What is the Auto Speed function?
The Equity 386SX is capable of operating at 16MHz or 8MHz. Some
copy- protected applications require the computer to run at 8MHz
while accessing the program diskette. By enabling the Auto speed
function the computer automatically switches to 8MHz when accessing
the diskette drive. It then switches back to 16MHz for optimal
performance. Auto speed is accessed through the SETUP program
under the Auto speed option.
Does the Equity 386SX use the Phoenix or Award ROM BIOS?
No. All Equity desktop computers utilize a Seiko - Epson proprietary
ROM BIOS.
PSB No: S-0106
Page 2 of 8
Q5.
Can the Equity 386SX support an 80387 co- processor?
A.
Yes, 80387SX support is available. The Equity 386SX has a socket
for an optional 80387SX - 16 math co - processor which operates at
16MHz. This allows extra processing power for math intensive
programs like Lotus 1 - 2 - 3 or AUTOCAD.
Q6.
Can the Equity 386SX use option cards that are available for the
IBM PC/AT?
A.
The Equity 386SX uses an AT- compatible ISA (Industry Standard
Architecture) bus structure that enables you to install any of the
various add-on products designed for IBM PC, XT or AT computer,
such as: expanded memory, EGA or VGA video, internal modems
and many more. It also supports all of the option boards
manufactured by Epson for the EQUITY series. There are 5 standard
I/O expansion slots (one with 8 - bit bus and 4 with 16 - bit bus);
one proprietary slot occupied by a serial/parallel interface card. The
16 - bit slots will also accept 8 - bit compatible cards. The Equity
386SX offers flexibility in tailoring the system to your needs.
Q7.
A.
Q8.
A.
Q9.
A.
Are there any tested internal modems that can be used?
The Epson Link PC and the Hayes 2400 baud internal modems
have been approved.
Does the Equity 386SX have a built in PS/2 mouse port?
Yes, it has a PS/2 compatible mouse port on the rear panel of the
computer. The connector is a 6 pin mini DIN for an IRQ12 mouse
or other device.
Can the Equity ” + " keyboard be used on this machine?
The Equity ” + " keyboards are the same as the keyboards used on
the Equity 386SX and are thus interchangeable. The cable on the
Equity 386SX keyboard is longer in length than the cable used on
the ” + " keyboard.
PSB No: S-0106
Page 3 of 8
Q10.
What is the Password Security?
A.
This system provides three levels of password protection against
unauthorized access: password before boot, network - server mode
password and password disable. The password is user definable and
consists of a 7 - byte (character) string. The password protection
feature is not case sensitive. When the system is booted for the first
time, or the password has been disabled and re- enabled by moving
jumper J1 on the system board, the user defines and enables the
password using the Setup utility on the Reference disk.
Q11.
What terminal emulation boards are compatible w/ the Equity 386SX?
A.
The following products have been tested and approved:
3278/79 Emulation Adaptor
IBM 5250 Board
IRMA/2
SDLC
Q12.
A.
Q13.
A.
IBM
IBM
DCA Inc.
IBM
Does the Equity 386SX have a battery for the Real Time Clock?
The Equity 386SX is using a “Dallas” model DS1287 which
incorporates an HD146818 compatible real-time clock with an
internal battery.
What VGA adapters are compatible with the Equity 386SX?
The following VGA adapters have been tested in the Equity 386SX:
Paradise VGA Plus 16 Card
Paradise VGA Professional Card
Video Seven Fastwrite Card
Q14.
A.
Can the serial and parallel ports be disabled?
No. The parallel and serial ports auto configure at boot up from the
BIOS ROM. They are set up as LPT1 and COM1 respectively and
there are no hardware jumpers or DIP switches to set them to LPT2
and COM2.
PSB No: S-0106
Page 4 of 8
Q15.
How many internal device bays does the Equity 386SX have and will
it support a full - height device?
A.
The Equity 386SX has 3 half - height bays to support up to 3 half height devices. The separator between bays 2 & 3 can be removed
to allow for the installation of a full - height device.
Q16.
A.
Q17.
A.
Q18.
A.
How many wait states does the Equity 386SX have?
At 16MHz the system utilizes a “1/4 wait state” architecture for
memory access and 0 wait states for ROM BIOS access on the
motherboard. At 8MHz, memory and ROM BIOS access require 1
wait state; on the expansion bus, all memory or device requests are
1 wait state. If additional wait states are required, devices on the
I/O channel hold the READY signal low thus wait states are
generated until the device can respond to the CPU.
Are the wait states user selectable?
No, the Equity 386SX automatically inserts them when needed after
the command phase of the processor clock cycle.
How many jumpers are on the system board?
There are five (5) jumpers on the system board:
System Board:
Jumper 1: Co - Processor Installed/Not Installed
1 - 2: Installed
2- 3: Not Installed (Factory Setting)
Jumper 2: Password
1 - 2: Password Enabled (Default)
2 - 3: Password Disabled
PSB No: S-0106
Page 5 of 8
Jumper 3: Embedded HDD Interface Enable/Disable
1 - 2: Embedded HDD Interface Disable
2 - 3: Embedded HDD Interface Enable (Factory Setting)
Jumper 4: BIOS EPROM Type
1- 2: Selects 27256 Kb ROM
2 - 3: Selects 27512 Kb ROM
Jumper 5: IRQ 12 Select
1 - 2: IRQ 12 From Option Slot
2 - 3: IRQ 12 From Built - in Mouse (Factory Setting)
Memory Board:
Jumper 1: Built in Buffers Enable/Disable
1 - 2: SIMM’s Installed, Buffers Enabled
2- 3: SIMM’s Not Installed, Buffers Disabled (Factory
Setting)
HARD DISK DRIVES:
Q19.
A.
Q20.
A.
Q21.
A.
What kind of hard disk drives are available for the Equity 386SX?
The Equity 386SX is available in two hard disk configurations. A
40Mb 3.5” hard disk, (Conner CP- 344, 29ms access time) and a
100Mb 3.5” (Conner CP- 3104, 25ms access time) hard disk are
available. These hard disk drives offer a 1:1 interleave and use
embedded controllers with an AT interface. When installing the 40Mb
drive use type 59 and with the 100Mb drive use type 60 in SETUP.
What hard drive controller is used in the Equity 386SX?
The Equity 386SX uses a controller embedded on the hard drive.
This controller connects to a Task File Host interface that is
integrated in the system board.
Can the Equity 386SX use other hard disk drives and controllers?
Yes, the Host Interface on the system board can be disabled
other third party hard drive controllers and drives can be used.
interface can be disabled by setting Jumper J3 to position 1
Other embedded controller AT- type drives can also be used
the Host Interface.
and
The
- 2.
with
PSB No: S-0106
Page 6 of 8
Q22.
What extended hard drive support is available in the ROM BIOS that
comes with the Epson Equity 386SX?
A.
The Seiko - Epson BIOS will directly support hard drives that range
in size from 10Mb to 153Mb. There is direct support for the Seagate
ST- 251 and the ST - 4096 hard disks, as well as, several ESDI
drives. By providing this support for 3rd party hard disk drives, the
Equity 386SX has the capability to use most 3rd party 8 - bit and
16 - bit hard disk controllers. SCSI drives have their own controllers
attached to the drive and should work correctly when attached to
the bus with a host adapter.
The Equity 386SX also has a User Definable setting that allows you
to set up hard disk drives that are not supported by the Equity
386SX Drive Type Table. In SETUP, a sub - menu lists the settings
you can change for each drive: the number of cylinders (tracks), the
number of read/write h e a d s , t h e n u m b e r o f s e c t o r s , t h e
precompensation cylinder, the landing zone (the cylinder on which
you want to park the heads when moving the computer), and the
total storage capacity in megabytes.
FLOPPY DRIVES:
Q23.
A.
Q24.
A.
Q25.
A.
What types of floppy disk drives will work on the Equity 386SX?
The Equity 386SX comes standard with a 3.5” 1.44Mb floppy disk
drive. There is built- in BIOS support for industry standard 360Kb
and 1.2Mb 5.25” half - height floppy disk drives as well as the 720Kb
3.5” floppy drive. All four drive sizes are available from Epson.
Will the Equity 386SX support 3 floppy disk drives?
No, not directly. The Epson controller and ROM BIOS supports a
maximum of two floppy drives. The internal floppy controller cannot
be disabled.
Can the floppy disk controller be disabled?
No. The floppy disk controller is integrated in the system board and
there are no jumpers to enable or disable it. If an additional or 3rd
party board is present the BIOS ROM auto- configure at bootup.
PSB No: S - 0106
Page 7 of 8
MEMORY:
Q26.
A.
Q27.
A.
What type of RAM chips are used in the Equity 386SX?
The Equity 386SX utilizes eight (8) 514256 - 70 (256x4), 70 nSec RAM
chips plus parity on the system board.
How do I increase the memory of the Equity 386SX?
The standard Equity 386SX system includes 1Mb of on - board
memory. You can add SlMMs (single in - line memory modules) for
increased on - board memory by installing them onto the PNT- RM
board already in the Equity 386SX. With added SIMMs the total
amount of on - board memory in the computer must be one of the
following: 2Mb, 4Mb, 6Mb, 8Mb, 10Mb 12Mb or 14Mb.
There are 16 SIMM sockets inside the Equity 386SX. The 4
centermost sockets MUST contain 256Kb SIMM’s. All other sockets
can contain one 256Kb or 1Mb SIMM. The following table shows
possible SIMM configurations for the Equity 386SX.
HIGH BYTE
LOW BYTE
SIMM Location:
1A
9H
X
2A
8H
X
X
3A
7H
X
X
X
Total **
4A
6H
X
X
X
X
5A
5H
6A
4H
X
X
X
X
X
X
X
X
X
X
X
7A
3H
*
*
*
*
*
*
*
8A
2H
*
*
*
*
*
*
*
12A
2L
*
*
*
*
*
*
*
13A
3L
*
*
*
*
*
*
*
14A
4L
X
X
X
X
X
X
15A
5L
X
X
X
X
X
16A
6L
17A
7L
X
X
X
X
X
X
X
18A
8L
X
X
19A
9L
X
Legend:
= 256Kb x 1 x 9 SIMM’s
; = 1Mb x 1 x 9 SIMM’s
L = LOW Byte.
H = HIGH Byte.
** Total includes the standard 1 MB of System Memory
Memory can also be expanded through the use of third party memory
boards using an I/O slot.
2MB
4MB
6MB
8MB
10MB
12MB
14MB
PSB No: S-0106
Page 8 of 8
Q28.
What SIMM chips should be used when adding memory to the
Equity 386SX?
A.
Use the Epson 70 nSec - 9 bit SIMM module kits, either 1 - MB
kit (4- 256Kb SIMM’s, Part # A808231) or the 2MB kit (2 - 1Mb
SIMM’s, Part # A808101), to extend the system memory. Should you
need to use third party SIMM modules we recommend the following:
Toshiba
Matshushita
CDC Enterprises
Samsung (#KMM591000 - 7)
1
1
1
1
MBit
MBit
MBit
MBit
x
x
x
x
9
9
9
9
70
70
70
70
nSec
nSec
nSec
nSec
**NOTE**
The following SIMM chips do not work in the Equity 386SX:
IBM
Panasonic
Compaq
NMBS
SOFTWARE:
Q29.
A.
Q30.
A.
Q31.
A.
What version of DOS is provided with the Equity 386SX?
The Equity 386SX is packaged with MS - DOS version 4.01.
Is the Equity 386SX compatible with OS/2?
Yes, since OS/2 is much more hardware - specific than MS - DOS,
the Epson version of MS OS/2 is required.
Will it support Unix and/or Xenix? Which versions?
The Equity 386SX has been tested w/ Santa Cruz Operations Xenix
Rel. 2.1 and IBM PC Xenix Vers. 1.
Subject:
Using High Capacity ESDI and SCSI Hard Disk Drives with the Current
Equity Series Computers
Date: 10/10/90
Page(s): 1 of 2
PSB No: S-0091A
Originator: PNM
The purpose of this bulletin is to provide some specific examples of how to install
high capacity ESDI and SCSI hard disk drives in the current Equity Series computers.
The largest drive directly supported by the ROM BIOS (ver 220) in the Equity II+ and
Equity Ill+ has a capacity of 130Mb, while the largest supported directly by the ROM
BIOS in the Equity lIe, 386SX, 386/20 and 386/25 is 153Mb. To allow our units to be
used in stand alone and especially network environments that require higher drive
capacities, the use of the Adaptec ACB 2320 controller (available with the Equity
386/20) with the optional ACB-BIOS (available from Adaptec) will provide support for
a variety of ESDI drives up to 314Mb. The AC&BIOS also has the ability to read the
ESDI drive parameters from the drive itself. This will allow it to configure virtually any
ESDI drive.
NOTE:
The Adaptec BIOS ROM should be installed in location U25. In
order for it to work, the jumper J13 pin 1 must be installed. Caution
should be used when ordering the BIOS ROM as problems have
been experienced when using version B. Versions A and C
perform normally.
The WD1007V-SE1 controller is another option that can be used with high capacity
ESDI drives that are not supported by the ROM BIOS drive tables. When using this
controller’ make sure that all pins on jumper on W1 are open. You can run SETUP
and use Type 1 for the drive type or let the controller automatically set it at the end of
the low level format routine provided by the controller’s BIOS. To start the WD-BIOS
Format Utility, run DEBUG and enter G=CC00:5. This will bring up a menu listing the
operations that are available. Run the low level format and either enter the defective
blocks listed on the drive by hand or let the program enter them automatically.
Continue with the “Verify” and “Surface Analysis” utilities and finally finish with the “Set
Drive Type and Exit". At this point there are 5 options from which to choose using the
“+” and ‘I-” keys to toggle through the available choices. Select the ‘Translation
Option-63 SPT (Sectors Per Track)” if the hard drive has more than 1024 cylinders or
“Non-Translation” for drives with less than 1024 cylinders.
PSB No: S-0091A
Page: 2 of 2
The next step after completing the low level format is to run the Novell COMPSURF
utility. When setting up the COMPSURF Parameters it will ask if you want to “Format
the drive?” where you will choose the “NO” response and proceed to the next option.
When asked if you want to “Retain the Bad Track Table” answer ‘YES” and continue
on with the rest of the COMPSURF options. After completion of the COMPSURF
utility, continue on with the rest of the NETGEN installation.
The use of high capacity SCSI drives is another area where we are able to provide a
solution for those customers who require storage capacities greater than the Epson
Supplied options. When using a SCSI type hard disk drive, the hard disk controller
usually is a part of the hard drive unit. The connection between the SCSI bus and the
Equity’s data bus is made by installing a host adaptor into the Equity computer and
connecting the SCSI drive to the host adaptor. The Seagate ST-296N, 85Mb drive,
used in a stand alone configuration in the current Equity Series computers has
provided favorable results.
When using SCSI drives in a Novell network, the use of the Future Domain SCSI
adaptor with high capacity SCSI drives such as CDC and Maxtor has also been very
successful. Future Domain recommends using Version 1.4 of their device driver
when installing Novell Netware Versions 2.1-2.15. When used with the TMC-830 (use
ROM Vers. 4.0L) or the TMC-840 (use ROM Vers. 5.0C) host adapters, drive sizes of
up to 800Mb (CDC 94181-702) can be accommodated.
Product Support Bulletin
Subject:
Equity and Apex Series Compatibility with the Sysgen OmniBridge
Controller and BridgeFiler External Floppy Drives
Date:
Page:
04/11/90
1 of 3
PSB No:
Originator:
S-0088B
KAS 60
The purpose of this bulletin is to provide the results of compatibility testing
conducted by the Computer Product Support Center with the Sysgen
OmniBridge controller and Bridge - Filer external floppy disk drives.
Comments
Equity I
The Equity I was found compatible with the OmniBridge
controller. It was able to support one or two external
disk drives (daisychained) together. The external drives
could be used as high density (1.2M and 1.44M) or
normal (360K and 720K) disk drives.
Equity II
The Equity II was found to be totally incompatible with
the OmniBridge controller.
Equity III
The Equity III was found compatible with the OmniBridge
controller. It was able to support one or two external
disk drives (daisychained) together. The external drives
could be used as high density (1.2M and 1.44M) or
normal (360K and 720K) disk drives.
Equity I +
The Equity I + was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.
Equity le
The Equity le was found compatible with the OmniBridge
controller. It was able to support only one external
floppy drive, unlike the other models tested. The drive
could be used as a high density (1.2Mb and 1.44Mb) or
normal (360K and 720K) disk drive.
PSB No: S-0088B
Page: 2 of 3
Equity II +
The Equity II + was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.
Equity lIe
The Equity Ile was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.
Equity Ill +
The Equity III + was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
144M) or normal (360K and 720K) disk drives.
Equity 386SX
The Equity 386SX was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
144M) or normal (360K and 720K) disk drives.
Equity 386/20
The Equity 386/20 was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.
APEX
The Epson APEX was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.
APEX +
The Epson APEX was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.
PSB No: S-008B
Page: 3 of 3
APEX 100
The Epson APEX 100 was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.
APEX 200
The Epson APEX 200 was found compatible with the
OmniBridge controller. It was able to support one or
two external disk drives (daisychained) together. The
external drives could be used as high density (1.2M and
1.44M) or normal (360K and 720K) disk drives.
NOTE:
The recommended switch settings for the OmniBridge controller are
as follows:
1-1
1-2
1-3
1-4
DOWN
DOWN
DOWN
DOWN
2-1
2-2
2-3
2-4
DOWN
DOWN
UP
UP
These settings select NO ADDRESS for the OmniBridge BIOS and
allow it to coexist with the internal FDC of the computer in which it
is being installed. This way you do not need to disable the internal
FDC or connect any cables from the OmniBridge to internal floppy
drives. This was found to be a universal setting for all of the
computers listed above as compatible with the OmniBridge controller.
PSB No.: S-0062I
Page: 1 of 18
EQUITY 386SX
VER
1.03
1.03
1.15
1.15
1.16
1.16
PART #
DESC
TYPE
LOC
Y192804001
Y192805001
Y192805002
Y192804002
CPAN-A2
CPAN-B2
CPAN-BO3
CPAN-AO3
27C256
27C256
27C256
27C256
U25
U37
U25
U37
Y192590801
Y192590802
CPAN-A04
CPAN-B04
27C256
27C256
U25
U37
REASON
INITIAL RELEASE
To allow the use of the DEC
DEPCA adapter. To allow the use
of the Seagate ST-157A, Quantum,
Maxtor, Rodime, and WD93044-A
hard disk drives. To allow the use of
two Imprimis 9244-383 , Conner
CP344, CP3104, or CP3204 drives
in the same system. To allow
KEYB.COM to be used in
conjunction with EMM386.SYS. To
allow FDD auto-configuration in
CMOS.
See
ECN EQ386SX-001 (2/6/91).
To resolve a problem with rapid
keystrokes using the enhanced 10key area of the keyboard. This
problem may cause shift key lock
and/or keyboard lockup. To allow
the use of a SCSI HDD controller
with the password function. To
allow CMOS to indicate daylight
saving time mode. To resolve
problem with DECNET PCSA v.
3.01.
See ECN EQ386SX-004 (4/3/92).
EQUITY 386SX PLUS DISKLESS WORKSTATION
VER
1.57
1.57
PART #
Y705809001
Y705808001
DESC
CTRTD-B02
CTRTD-A02
TYPE
27C512
27C512
LOC
U73
U96
REASON
INITIAL RELEASE
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