Epson NX Product Information Guide
EPSON NX
power (SPEED)
light
hard disk
access
light
bay for hard disk, diskette, tape,
CD-ROM, or other drive
115mo
VAC switch
.
Computer Specifications
CPU and Memory
32-bit CPU
System speed
Memory
4DX2/66:
Intel
i486DX2,66 MHz
microprocessor; supports future Intel
OverDrive
processors
High, low, and automatic speeds
available; high speed is CPU-dependent
(66 MHz), low speed is simulated 8 MHz,
automatic speed switches from high to
low only for diskette drive access; speed
selection through SETUP, keyboard
command, or ESPEED program; 0 wait
state memory access at high speed
20MB standard (4MB DRAM soldered on
main system board and one 16MB SIMM);
expandable using lMB,
64MB
SlMMs
to
128MB
main system board; SlMMs must be 70 ns,
36-bit, 72-pin, gold-leaded, fast-page mode
we
diskette
drive
option card
rt
I-
4MB, 16MB,
maximum on
power
button
ROM
Video RAM
Shadow RAM
128KB ROM containing system BIOS and
video BIOS; 64KB ROM containing SETUP
code
2MB video RAM on main system board
Automatic shadowing of system and VGA
BIOS ROM into RAM; shadow RAM
address control selectable through SETUP
Cache
8KB of internal cache (built into the
microprocessor); cache testing and address
control selectable through SETUP
VirtualCache
Epson proprietary
VirtualCache’”
feature
automatically creates a “virtual cache”
buffer the size of maximum system
memory
slots
/
/
1
Math
coprocessor
Clock/calendar
Built into the microprocessor
Real-time clock, calendar, and CMOS
RAM on main system board; separate
battery backup
Controllers
Video
Chips and Technologies
Wingine’”
P64200 VGA controller on main
system board; provides resolutions
of up to 1024 x 768 x 64K colors or
1120 x 832 x 64K colors, depending on
the available drivers
DiSk&te
Controller on main system board supports
up to two diskette drives or one diskette
drive and one tape drive (DOS only)
Hard disk
Interface on main system board supports
up to two IDE hard disk drives with
built-in controllers
Interfaces
Monitor
VGA interface built into main system
board for analog or multifrequency VGA
monitor; 15-pin, D-shell connector
Parallel
One standard 8-bit parallel, bidirectional
interface built into main system board;
port assignment and I/O address
selectable through SETUP; 25-pin, D-shell
connector
Serial
Two RS-232C, programmable,
asynchronous interfaces built into main
or
system board; port assignment and I/O
addresses selectable through SETUP;
9-pin, D-shell
co~ectors
6/30/93
EPSON NX-1
EPSON NX
Keyboard
Mouse
Option slots
Speaker
Feature
connector
LAN adapter
Mass Storage
Horizontal
mounts
Vertical
mount
Diskette drives
Hard disk
drives
ES/2
compatible keyboard interface built
into main system board; keyboard speed,
delay, and num lock settings selectable
through SETUP; 6-pin, mini DIN connector
I’S/2
compatible mouse interface built
into
main
system board; 6-pin, mini DIN
connector
Four standard
X-bit
(or
&bit)
I/O
expansion slots (three available); ISA
compatible; 8 MHz bus speed
Internal; operation controllable through
SETUP and volume selectable by software
IBM compatible VGA pass-through
interface built into main system board;
26-pin connector
Intel
EtherExpress 16C, &bit ISA-
compatible Ethernet adapter; supports
BNC coax (thin Ethernet), AUI
(thick Ethernet), and RJ-45
DE15s
(10BaseT
Ethernet); Link and Activity status LEDs;
software configurable for I/O address,
IRQ, connector type, and I/O- or memory-
mapped buffering; diagnostic utility
included
Three drives maximum (two horizontal
mounts and one vertical mount),
configurable using the following:
Up to two externally-accessible,
half-height horizontal mounts; each
horizontal bay can accommodate one
5%inch
form factor hard disk, diskette,
tape, CD-ROM, or other drive, or one
3%-inch form factor hard disk, diskette,
tape, CD-ROM, or other drive with
51/4-inch
mounting frames attached
One internal third- or half-height vertical
mount; vertical bay can accommodate one
3%-inch form factor hard disk or other
drive
3.5~inch,
5.25~inch, 1.2MB
3*4-inch
1
or
&MB
(high-density)
(highdensity), DOS only
5&inch
form factor hard disk
drive(s), up to half-height size; the first
mounted vertically, second mounted
horizontally; (the vertical bay can
accommodate only
3l/i-inch
form factor
drives; the horizontal bays can
accommodate
3*4-&h
or
5!@nch
form
factor drives)
Other devices
Half-height tape drive, CD-ROM drive, or
other storage device;
or
31&inch
form factor with
51/4-inch
form factor
5’!-inch
mounting frames attached
Keyboard
Detachable; two-position height;
101 sculpted keys; numeric/cursor control
keypad; four-key cursor control keypad;
12 function keys
Power Supply
Type
Input ranges
145 Watt, fan-cooled
90
to
132 VAC and 180 to 264 VAC, switch
selectable voltage
Maximum
outputs
+5
VDC at
18 Amps,
+12
VDC at 4.0
Amps, -5 VDC at 0.3 Amps, -12 VDC at
0.3 Amps
Frequency
Cables
47to63Hz
Two to main system board; four to mass
storage devices
Option Slot Power Limits
Maxlmum
For each slot
For ail four slots 16Amps3 Amps
current
+5
volts
7 Amps
+12
volts
1.5Amps 0.3Amps
-SVoRsand-12Volts
0.3
Amps
Environmental Requirements
Condltlon
Temtxvature
Humidity
(non-
condensing)
Atlituds
Maximum
wet bulb (20°C)
Acoustical
noise
1
Operatlng range1 Nonqeratlng1 Storage range
I
I
41’
to
95’
(SO
to
35OC)
20% to 60%
~toQ,QOOR
(-100 to 3,000 m) (-100 to 3,600 m) (-100 to 12,000
66’F
37.4 dB(A)
1
range
F
I-4°t01400F
(do0
to
6oOC)
1O%toQO%
4ooto 11,660R
104’F 134’F
(4OOC)
WA N/A
I I I
I
14’to140°F
(-2o”
lO%to95%
4300t039,600ft
(57OC)
to
6oOC)
Physical Characteristics
Width
14.8 inches (370 mm)
Depth 16.5 inches (412 mm)
Height
4.8 inches (120
mm)
Weight 16.7 lb (7.6 kg), without keyboard
1
m)
EPSON NX-2
6/30/93
Major Subassemblies
EPSON NX
J1549
VGA feature connector
J5J6
0
q
q
L
option board
riser
card
vertii drive bay
6/30/93
horizontal drive bays
EPSON NX-3
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