Epson EL 3S/33
To select low speed, press the Ctrl, Alt,
and - keys simultaneously. To select
high speed, press the Ctrl, Alt, and + keys
simultaneously. (Use the - or + key on the
numeric keypad.)
hard disk or diskette
drive bay
Memory
2MB RAM standard on SIMMs;
expandable using 256KB, 1MB, or 4MB
SIMMs to 16MB (maximum); SIMMs must
be 30-pin, fast-page mode type with 70ns
(or faster) access speed
ROM
Phoenix BIOS A386 V1.03; 64KB system
BIOS, video BIOS, and SETUP code
located in EPROM on main system board
Video RAM
256KB DRAM on main system board,
expandable to 512KB or 1MB using 70ns
or 80ns 44256 DIP chips
Shadow RAM
32KB or 64KB, 0 or 1 wait state access
speed; system ROM BIOS and video ROM
can be copied into RAM
Math
coprocessor
80387SX, 33 MHz socket for math
coprocessor
Clock/calendar
Real-time clock, calendar, and CMOS
RAM socketed on main system board with
built-in battery backup
button
reset / I’ \
power light
button
speed (TURBO)
hard disk ‘ght
access light
diskette drive
monitor cable
\
Controllers
I
/
/
AC inlet
\
I
I
wI
I
COM1 COM2
AC outlet
I
I
Parallel
\
I
vAA
\
Game
CPU and Memory
System speed
Trident@ VGA controller on main system
board; provides resolutions up to
1024 x 768 in 16 colors
Diskette
Controller on main system board supports
up to two diskette drives, maximum
Hard disk
Interface on main system board supports
up to two IDE hard disk drives,
maximum, with built-in controllers on the
hard disk drive itself.
Interfaces
Computer Specifications
32-bit CPU
Video
80386SX, 33 MHz microprocessor with
16-bit bus
Monitor
VGA interface built into main system
board for analog or multifrequency VGA
monitor; 15-pin, D-shell connector
Parallel
One standard B-bit parallel, unidirectional
interface built into main system board;
25-pin, D-shell connector
High and low speeds available; high
speed is 33 MHz, low speed is 8 MHz;
speed selection through SETUP program
and keyboard commands; 0 or 1 wait state
memory access selectable through SETUP
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Epson EL 3S/33-1
Epson EL 3S/33
Serial
Game
Keyboard
Option slots
Two RS-232C, programmable,
asynchronous interfaces built into main
system board; 9-pin, D-shell connectors
Power Supply
Type
65 Watt, fan cooled
One game port interface built into main
system board; 15-pin, D-shell connector
Input ranges
90 to 260 VAC
Maximum
outputs
+5 VDC at 7.5 Amps, +12 VDC at
2.0 Amps, -12 VDC at 0.3 Amps
Frequency
47 to 63 Hz
Cables
One to main system board; four to mass
storage devices
PS/2 compatible keyboard interface built
into main system board; num lock setting
selectable through SETUP; 6-pin, mini
DIN connector
Three 16-bit (or 8-bit) full-length and two
8-bit half-length I/O expansion slots, ISA
compatible, 8 MHz bus speed
Speaker
Internal
Mass Storage
Three drives maximum (two horizontal
mounts and one internal mount),
configurable using the following:
Horizontal
mounts
Internal mount
Option Slot Power Limits
Maximum current
For all slots
+12 volts
1.8 Amps
-12 volts
0.3 Amps
This system does not support older option cards that may require -5 volts.
Environmental Requirements
Up to two externally-accessible, horizontal
mounts; one horizontal bay can
accommodate a half-height 51/4-inch form
factor hard disk, diskette, tape, CD-ROM,
or other drive; the other horizontal bay
can accommodate one third-height
31/fr-inch form factor hard disk, diskette,
tape, or other device
One internal third- or half-height
horizontal mount; bay can accommodate
one 31/1-inch form factor hard disk or
other drive
Diskette drives
5.25-inch, 1.2MB (high-density)
3.5-inch, 1.44MB (high-density)
5.25-inch, 360KB (double-density)
3.5-inch, 720KB (double-density)
Hard disk
drives
3 1/2-inch form factor hard disk drive(s),
third- or half-height size
Other devices
Half-height tape drive, CD-ROM drive, or
other storage device; 5!&nch form factor
or 3%inch form factor with 51/4-&h
mounting frames attached
Keyboard
Detachable, two-position height; 101 or 102
sculpted keys; country-dependent main
typewriter keyboard; numeric/cursor
control keypad; four-key cursor control
keypad; 12 function keys
SETUP
Program
Stored in ROM; accessible by pressing
Ctrl, Alt, and S at the SETUP prompt
during boot
Epson EL 3S/33-2
+5 Volts
4.6 Amps
Condition
Temperature
Humidity
(noncondensing)
Altitude
Operating
range
41° to 90° F
(5° to 32° C)
20% to 90%
Non-operating
range
-4° to 140° F
(-20°0 to 60° C)
10% to 90%
Storage range
-4° to 140° F
(-20° to 60° C)
10% to 90%
-330 to 39,600 ft -330 to 39,600 ft
-330 to 9,900 ft
(-100 to 3,000 m) (-100 to 12,000 m) (-100 to 12,000 m)
Physical Characteristics
Width
15.6 inches (396 mm)
Depth
14.5 inches (368 mm)
Height
4.1 inches (104 mm)
Weight
15 lb (6.8 kg) without drives or keyboard
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Epson EL 3S/33
Serial Port Connectors (CN4 and CN5)
Major Subassemblies
a, option card
connector coprocessor
J4
power
supply
J11
I
\
I
main
system
board
Serial Port Connector Pin Assignments
Keyboard Connector (CON1)
pin 5
+ pin 3
pin 4 -b
\
1
pin 2
I
pin 1
\
drive bays
mounting bracket
Although the keyboard and mouse connectors are physically
identical, they cannot be used interchangeably.
Keyboard and Mouse Connector Pin Assignments
Pin 1 Signal
1
IData
2
Resewed
3
Ground
Connector Pin Assignments
Parallel Port Connector (CN3)
pin 13
I
VGA Port Connector (CN2)
pin 1
I
l oeoooooooo~
~oooooooooo~
I
I
pin 25
pin 14
Parallel Port Connector Pin Assignments
17
8
9
‘Active
IData
IData
IData
low logic
I16
17
18
I Pin I Signal
14
I+5vDc
5
Clock
6
Resewed
pin 5
pin 1
pin 10
pin 6
pin 15
pin 11
VGA Port Connector Pin Assignments
I25
1 Signal ground
Selectin*
Signal ground
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Epson EL 3S/33-3
Epson EL 3S/33
Game Port Connector (CN1)
pin 8
System Memory Map
pin 1
000FFFFFFh
System BIOS ROM: 64KB
Duplicated from 0F0000h
pin 15
pin 9
000FF0000h
Resewed for system board: 64KB
Duplicated from 0E0000h
Game Port Connector Pin Assignments
000FE0000h
DMA Assignments
16MB
Maximum
system
memory)
Extended memory
1MB
00100000h
System BIOS ROM: 64KB
Default Shadow RAM duplicated at FF0000h
OOOFOOOOh
Hardware Interrupts
Unused or i/O expansion ROM: 160KB
Reserved for ROM on i/O adapters
000C8000h
-h
VGA BIOS ROM: 32KB
Default Shadow RAM
OOOB8OOOh
VGA text
(color): 32KB
OOOBOOOOh
Unused or VGA text
(monochrome): 32KB
Video memory: 64KB
Reserved for graphics display buffer
640KB
OOOAOOOOh
Conventional system memory: 640KB
Epson EL 3S/33-4
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Epson EL 3S/33
System l/O Address Map
Hex address
j Assigned device
000-01F
I DMA controller 1,8237A-5
020-03F
interrupt controller 1,8259A, master
022-023
Chip set configuration register
040-05F
Timer, 8254-2
060-06F
8042 (Keyboard)
070 - 07F (CMOS) Real-time dock NMI (non-maskable interrupt) mask
080-09F
page register, 74LS612
0A0 - 0BF
interrupt controller 2,8259A
0C0-0DF
DMA controller 2,8237A-5
Jumper Settings
Port Jumper Settings
Factory setting
** DOS automatically reassigns parallel and serial ports. Check your DOS
manual for more information.
l
2F8 - 2FF
300-31F
360-36F
378 - 37F
380-38F
Serial port 2
Prototype card
Reserved
Parallel printer port 1
SDLC, bisync 2
Drive Assignment Jumper Settings
l
Drive assignment
Upper drive is A
Lower drive is A
Factory setting
J17
2-3
1-2*
J18
2-3
1-2*
J19
2-3
1-2*
J20
2-3
1-2*
Diskette Drive Controller Jumper Settings
Jumper number
J27
Jumper setting
1-2*
2-3
Function
Enables diskette drive controller
Disables diskette drive controller
* Factory setting
Hard Disk Drive Controller Jumper Settings
J25
Hard disk controller
1-2*
Enable
2-3
Disable
** Two-pin jumper
* Factory setting
J22**
On*
off
Display Adapter Jumper Settings
Jumper number
J11
J15**
* Factory setting
Jumper setting
1-2*
2-3
On
Off**
* Two-pin jumper
Function
Color VGA display adapter
Monochrome display adapter
Interlaced mode
Non-interlaced mode
Built-in VGA Jumper Settings
J36**
On’
off
Built-in VGA
Enable
Disable
l
Factory setting
J37**
On’
off
** Two-pin jumper
To use an external display adapter in an expansion slot, you
must disable the built-in VGA adapter.
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Epson EL 3S/33-5
Epson EL 3S/33
Processor Chips
Hard Disk Drive Types
You can install an 80387SX, 33 MHz math coprocessor on the
main system board.
The table below lists types of hard disk drives you can use in
the computer. Check this table and your hard disk manual to
find the correct type number(s) for the hard disk drive(s)
installed in the computer. You need to enter the type
number(s) when you set the hard disk drive configuration in
the SETUP program.
SIMM Installation
The computer comes with 2MB of memory installed on
SIMMs. To increase the amount of memory in the computer
up to 16MB, you can install 30-pin, fast-page mode SIMMs
that operate at an access speed of 70ns or faster, with a
capacity of 256KB, 1MB, or 4MB.
Hard Disk Drive Types
The following table shows the possible SIMM configurations;
do not install memory in any other configuration. Make sure
that all SIMMs operate at the same speed.
SIMM Configurations
* Standard memory configuration
Video Memory
Your computer has 256KB of video memory. You can install
four or six video DRAM, 20-pin, 70ns or 80ns, 44256 DIP
(Dual Inline Package) chips to increase the video memory to
512KB or 1MB. The following table lists possible video
memory configurations.
Video Memo y Chip Configuration
~1
* Standard video memory
Epson EL 3S/33-6
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Epson EL 3S/33
Software Problems
If the computer has an Epson-supplied 80MB, 120MB, or
240MB hard disk drive, select a user-defined drive type and
enter the appropriate information from the table below using
the SETUP program.
When installing a copy-protected software package, first
try the installation at high speed. If this does not work
properly, select low speed by pressing the Ctrl and Alt
keys and the - key on the numeric keypad
simultaneously. Try loading the program at low speed
and then switching to high speed, if possible.
Epson-supplied Hard Disk Drive Types
l
When using a software package that uses a key disk as its
copy-protection method, try loading it at high speed. If
this does not work, load it at low speed.
Actual formatted size may be slightly different then size on drive label.
Installing Option Cards
Installation/Support Tips
Installing Diskette Drives
Although the EL 3S/33 will support most full-length option
cards, option cards with an I/F connector on the back may
not fit into the option slot.
Make sure that the drive type has been correctly selected in
the SETUP program.
Note that the EL 3S/33 system does not support older option
cards requiring -5 VDC.
Installing Hard Disk Drives
COM Port Assignment
It is recommended that a 16-bit, AT-type hard disk
controller be used if you are installing a drive that cannot
use the embedded IDE interface. If you install a non-IDE
hard disk drive and controller card, you need to disable
the built-in IDE hard disk drive interface by moving
jumpers J25 to position 2-3 and J22 to the Off position.
If you want to assign COM1 as COM3, you must set jumper
J10 to position 2-3. You also need to install a special driver
available from Epson technical support.
Using IBM 3270/PC 3270 Emulation
If you are using the IBM 3270/PC 3270 Emulation Entry
software, version 2.2, you may see only half the font when
you switch from a terminal emulation session to DOS Install
the patch program available from Epson technical support.
When installing a hard disk drive, see the hard disk drive
type tables on page 7 and use the SETUP program to
select the correct type number for the drive. You can
select a type number that matches the parameters for the
drive or a type number with parameters having lesser
values, as long as they do not exceed the maximum
capacity (in MB) of the drive. If there is no match for the
drive, you can select a user-defined drive type (48 or 49)
and enter the drive’s exact parameters.
Information Reference List
Engineering Change Notices
If you are going to install NetWare 286, version 2.2, do not
assign a user-defined disk drive type for your disk drive.
Assign the pre-defined hard disk drive type that most
closely matches the drive you are installing.
If you are installing an ESDI hard disk drive, make sure
you disable the built-in IDE hard disk drive interface by
moving jumpers J25 to position 2-3 and J22 to the Off
position. Also be sure to remove the hard disk drive
ribbon connector from the system board.
None.
Technical Information Bulletins
None.
Product Support Bulletins
None.
Related Documentation
400220800
EPSON EL 3S/33 User’s Guide
Novell Certification as Client
Novell Certification Document W655
5/5/93
5/28/93
Epson EL 3S/33-7
Epson EL 3S/33
Epson EL 3S/33-8
5/28/93