Epson Equity 386-25 PLUS Product Information Guide
Controller
EQUITY 386/25 PLUS
RESET
buttal
harddldaa
di&alWdrivrby
Computer Specifications
CPU and Memory
32-bit CPU
System memory
80386
micropnxusor,
clock speed, 25 MHz or simulated 8 MHz
procaaor
software or keyboard command
0 wait state memory access speed at
25
ZMB
memory of eithex 256KB. 5 1
64OKB.
speed, selectable through
MHz
RAM standard on SIMMs; base
sclccxable through jumpers
7
25 MHz system
ZKB,
or
Diskette
Hard disk
Suppon,uptotwdrivainanyoffcur
formao:
5%inch, doubledensity,
3
‘/a-inch,
3%inch, doubledensity, 72OKB;
controller on main system board
Supports up to two drives; cmbcddcd
conuolla; int&
Interface
Monitor
said
VGA
built into main system board;
intal;wed
KU x
or up m 640 x
multi-frequency monitor
raohJtionsovfzr64ox4ao
15-pin. D-shell
~~-232~
9.ph hhdl ax-tnccmr
Parallel
Auxiliary Mini DIN, 6-pin
Keyboard
Option Slots
Speaker
Standard 8-bit parallel. mono-directional;
250pin,
compatible mouse or other &vice
Fan standad
&rcc &bit
&bit
Internal;
5’/+-inch,
ztdapta
600
D-shell rxmncctor
ISA
high-densicy.
high-density,
on main system board
with 1 MB of video memory
mode only;
a 1024 x
programmable,
cmnpatibk);
opera&n controllabk
768
480
pixels in
connector
connccmr br PS/2
input/output expansion skxs
ISA compatible and one
l.ZMB;
36OKB;
1.44MB;
or
non-
suppom
up to
pixels in 16-colon
256colors
rquinxl br
asynchron~;
8 MHz bw speed
by
Memory expandable using 256KB or
1MB
SIMMs up to
SlMMs must bc
ROM
Shadow RAM
Mach coprocessor
Clock/calendar
Cache controller
Cache RAM
128KB (in&da
BIOS)
0 wait state
copia
both ROM BIOS and video ROM
inmRAM
80387 (25
(25 MHz) support; both may be used when
a Weitek dual coprocessor adapter is
installed to provide an additional socket
(optional)
Real-time clock, calendar, and
50-byte CMOS RAM for configuration;
battery backup
82385 (25MHz) standard
32KB high-speed static
MHz)
Equity Series Computers
16MB
7011s
system BIOS and VGA
access
or Weitek 3 167
(maximum);
access speed
speed; automaclcally
R4M
11/15/90
Power Supply
TVP
Input
ranga
Maximum outputs
Mass Storage
Diskette drives
14OW. fan-cooled, automatic input voltage
w
98 m 132 VAC and 195 m 264 VAC
+5VDCat18Amps,+12VDCat
4.2
Amp
-12
VEC at 03
03 Amps
Up m
three
(one vertical mount and
moud
following drive
5%inch
(high-dauity)
Amp. -5 VDC at
half-height drive maximum
configurable using any of the
typcx
diskette drive,
storage capacity
cw~
1.2MB
horizontal
386/25 PLUS-1
EQUITY 386/25 PLUS
3’/z-mch diskette drive.
(highdensiv)
S’/~inch diskette drive.
(double-density) storage capacity
3’/&1ch
(double-density) storage capacity
Hard
disk drives
3’/xnch
up to half-height sue; first drive mounted
vertically, second mounted
Keyboard
Detachable, two position. 101 sculpted
keys
Layout
58-key
17-key
additional 4-key cursor pad; 16 function
keys (user-definable)
Function
Four levels (normal. shift,
alternate);
Environmental Requirements
Opeming
condaiin
Temperature
Humidity 20%
(noncondensing)
I Allnude
I
Maximum
wet
bulb
rang0
410 to 95’
(50 10 3s
-33lro99cofl
(-lCO103COlm)
68” F
w
Cl
to
F
C)
00%
storage capacxy
1.44MB
36oKB
diskette drive, 720KB
form factor hard disk drive(s):
hotintally
QWERTY main keyboard;
numeric&or pad; 10
cuMr kq;
conuoi,
userdefinable
Nonaperating
range
4.10
1WF
(-20’ to w C)
1o%lowx
-33oto1186ott -3ato396oott
(-100fo36CfIm) (-1WfolXOOm)
104’
F
(40’
C)
StOra(p
range
-Wfo 14VF
(-40.
to
5% to 95%
134O
F
(57’
C)
60. C)
Connector Pin Assignments
Parallel Port Connector
Pin 13
Pin 25
1
DATA 7
9
j
191
I
SIGNALGND
20
SIGNAL GND
I
21/ SIGNAL GND
18
j
SIGNAL GND
Phi
Pin
14
I
I
Physical Characteristics
Width
@Ph
Height
Weight
(without
keyboard)
386/25 PLUS-2
15
incha
(374 mm)
16.75 incha (419 mm)
6 inches (151 mm)
Single diskette drive model:
20.75
lb (9.4
kgs)
Serial Port Connector
2
Receive Data
4
5
Transmit Data
1
DataTerminal
not used
I 3
11/15/!30
AeaUy
7
Request To send
0
Clear To send
911
RIFJ indicator
Equity Series Computers
EQUITY 386/25 PLUS
Keyboard and Mouse Connector
m
Ptn+
Pin
~M~~ugii
identical,
the keyboard and
they culpot k ued hhrchmesably.
Keyboud Connoctof
IS lKeyboardCkck
6
Mouse Connector
2’
Resefved
ql--Pin
’
Pin
3
1
moun connectara
am
I
phykall~
I/O Port
oooOlF
02OJRl
07W7F
OPnoBF
OF0
OF1
OF0OFF
17G178
16GlB6
1BF
lfSlF7
2oG207
27s27F
276
2FWFF
300-31F
37oa7
37-F
378
3eQaF
3m3oF
3FoaF7
3F8iSF
Addme8u
F-
DMA
Controller 1
hletnlplconlrolbr
TifTlOf/CWltOf
Keybod Cf.Mollr
Real-Tlmr
DIM Pqp RsgiMmr,
lntrnvpt Controllr 2
DM4
awNmBu8y(81#81)
-NmWW
NIJX (ewsl)
HWdDl8kcOfttJYBllWsIconduy
Configumtlon
Configurttlon
Hard Dbk contmlbr
Game l/O
Printar
Conflgumtbn
swidFbrt2
Rot0typr-d
Floppy Dbk
panllel
Cimfiguralbn Regbtu
SDLC, Birynchronour Communlcath
BisyncfttonousCommuniatlon
MonochromeDlrpkyandPtlnler~
color/GmphbMorlitorwaptu
FDD
.%alhftl
Clock NMI
Controlhr
Port 2 (276 and 27F M
Prlntw Port l(37B
c0ntrdl.r
1
(W42)
Mark Fbgrstsr
MM
Fort
(82SQkompntibb)
2 (6237A45uxnpatlblo)
Fbgistua
Fbgbier Unlock Port
Wmuy
Flrglstor
Unlock Port
Ddve contJoller SIcondary
and 37F are unused)
Unlock Port2
Primary
1
unused)
2
1
VGA Connector
1
I2
I3
I4
Red video
Green Video
I
Blue video
I
I unused
Equity Series Computers
9
10
I I
11
1
12
Key
Sync Return
1
Resewed
esefved
iR
11/15/90
Hardware Interrupt
CTLRlClLR2
Roe
IROl
IRO2
IRW
IF404
lRO5
IF!06
IF07
I
I
,
IFIOS
IROQ
IRQlO
Roll
IRo12
IRa13
IRa14
IFto
bsecvsd
!haelved
Resewed
FUNCTION
Timer Output 0
fQJyboard
Interrupt from Controller 2
serhlpoft2
SBfhlpOftl
Pafallel port
Floppy disk interrupt
Parallel port
RTC intermpt
Soflwaro
Mouw,
COP-
Hard disk controller
2
1
redirected to
pointing device
IRQ2
386/25 PLUS-3
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