Epson NB3s User Manual
EPSON NB3s
contrast control ,
brightness control
RAM card cover
external keypad connector
I
1
Computer Specifications
diskette drive
I
1
Main Unit
CPU
386SX microprocessor; 8 MHz or 16 MHz clock speed, selectable
through SETUP or software command
Main
memory
1MB (640KB
either shadow RAM or extended memory, selectable through
SETUP)
Math coprocessor
Socket for optional 16-MHz, 387SX coprocessor
Clock/calendar
Real-time clock and calendar with battery backup
conventional;
LCD screen
/
ard disk drive
\
status indicator bar
(CV!-All-0
the remaining 384KB can be used as
battery charging indicator
parallel/external diskette drive port
external monitor port
Interfaces
Notebook Computers
Parallel / External diskette drive
25-pin, D-type, female connector; standard B-bit parallel or external
diskette drive support, selectable through SETUP
Serial
RS-232C, programmable, asynchronous, 9-pin, D-type male
connector
Video
15-pin, female connector; supports
Eatuml num8rlc
9-pin, mini-DIN connector for
Speaker
Internal
Memory
Internal RAM card slot: allows expansion to 2MB or 5MB
Modem
lnternal slot for optional modem
k8yp8d
VGA
monitor
optiorul
external numeric keypad
11/30/90
NB3s-1
EPSON NB3s
Keyboard
Mass
Storage
Display
82 sculptured keys; status indicator bar icons for Num Lock, Caps
Lock, and Scroll lock
Optional, external numeric keypad
Interchangeable, slide-out, 20MB or 40MB hard disk designed for
low power consumption; 23ms average access time; built-m
controller; power-saving feature
Diskette drives
One internal, 1.44MB 3 M-inch diskette drive
Optional, external 5 Vwnch (1.2MB) diskette drive
Large
(@Ox480
display with 16 gray levels; continuous brightness and contrast
controls; power-saving feature
CRT mode enabled automatically by connecting an external
display to the RGB port before power on
External, VGA-compatible display
dots), high contrast, paper-white, backlit LCD
supported
Power Supply
Interchangeable, rechargeable, internal NiCad battery pack, lasts
approximately 2 hours
10-volt AC adapter (can recharge battery pack while operating
computer)
wth
Physical Dimensions
Height
1.72 inches
Width
8.5 inches
11.8 inches (295 mm)
Weight
5.7
Ibs
(2.6 kg)
(43
(210
Environmental Requirements
Temperature
Operating: 41. to
Non-opetating: Ilo
Humidity
Operating: 20% to 80%
Non-operating: 8% to 90% (non-condensing)
Altitude
Operating: -230 to 11,800 feet
Nonoperating:
NOlO
When
frauding by
passenger
comparhmnt
stored
in an
unpressurizad storage canrparhmt.
automatx
mm)
mm)
wth
-224
lOO-240V
battery and hard disk
95O
F
(5’to
35.
to 1Z F
hxwondensing~
to 47,200 feet
airplane,
be sure to
as cany-on luggage
sensing. M/60 Hz
C)
(-m
to
60’ C)
t-60
to
3,OtXl
f-60
to
take
your
m)
12,ooO
m)
computer ink, tke
to
pmmt it
from b&g
NB3s-2
11/30/90
Notebook Computers
options
Expansion Unit
Internal 2400-baud, Hayes-compatible, auto-dial modem
1MB or 4MB RAM expansion cards
20MB or 40MB. interchangeable hard disk drives
External numeric keypad
Battery pack
External battery charger
Car cigarette lighter adapter
Carrying case
Power Supply
Automatic 100-240V sensing, 50/60 Hz. Supplies enough power to
operate the computer, recharge the battery pack and power an
optional full-size keyboard
Hard disk
Interchangeable, slide-out, 120MB hard disk; 19ms average access
time; built-in controller
Option slots
Two standard input/output expansion slots,
a/l&bit
ISA-compatible. Switch to disable internal VGA controller
Option slot Dimension
Front
Width
Height
Length (normal)
(Wnh sxpsn*on cover)
(hard disk
Rear Width
Height
Length (normal)
(with expansion cover)
installed)
Maximum size
0.66 inches (17 mm)
4.80 inches (122 mm)
10.63 inches (270 mm,
13.30 inches (340 mm)
6.12 inches (155 mm)
0.66 inches (17 mm)
4.13 inches (106 mm)
10.63 inches (270 mm)
13.30 inches (340 mm)
EPSON NB3s
Options
120MB interchangeable hard disk drives
External keyboard
Adapter to connect external keyboard to keypad port
Option Card Power Limitations
There is a limit on the amount of current that can be drawn by
installed option cards. The total current consumption of the two
option card slots must not exceed the maximum current for each
voltage shown below.
V-V
M8xlmumamant
Refer to the option card handbook for details.
Notebook Computers
+5V
~
-5V
0.3
11/30/90
+12v
0.6A
.12v
0.3A
NB3s-3
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