Advantech PCA-6143P User manual

Chapter 1 Hardware Configuration 1
1
Hardware
Configuration
This chapter gives background informa-
tion on the PCA-6143P. It then shows you
how to configure the card to match your
application and prepare it for installation
into your PC.
Sections include:
• Card specifications
• Locating components
• Safety precautions
• Configuration – Jumper settings
Experienced users can skip to the
Quick Start section on page 39.
CHAPTER

2PCA-6143P User's Manual
Introduction
The half-size PCA-6143P comes equipped with either an 80486SX-
25, 80486SX-33, 80486DX-33, 80486DX2-50 or 80486DX2-66
CPU. Also included on-board are one serial RS-232 port, one serial
RS-232/422/485 port, an enhanced bi-directional parallel port, an IDE
hard disk drive interface, a floppy disk controller and a watchdog
timer. The watchdog timer ensures that the CPU will be reset if it
stops due to a program or EMI problem, allowing the PCA-6143P to
be used in stand-alone systems or unattended environments. The PCA-
6143P’s industrial-grade construction ensures continuous, reliable
operation in harsh industrial environments at temperatures up to 140oF
(60oC).
We designed the PCA-6143P with SBC (Single Board Computer)
applications in mind. It incorporates a single-voltage power supply
(+5 V) and a connector for PC/104 modules (Flat-panel/CRT VGA
controller or Flash/RAM/ROM disk).A built-in Flash/ROM disk
emulates a floppy disk drive of up to 1.44 MB capacity. It emulates
the 1st, 2nd, 3rd or 4th DOS drive, depending on the physical disks
installed and the DOS version. See AppendixA for details.
Built using CMOS technology, the PCA-6143P consumes very little
power. Its two SIMM (Single In-line Memory Module) DRAM
sockets accept 1 MB, 4 MB or 16MB SIMM modules for total on-
board memory of 1 to 32 MB.
You can also use this 8-layer CPU card to transform any system into a
32-bit 486 compatible computer, its all-in-one configuration freeing-
up valuable expansion slots. Its highly compact form and numerous
features make it an ideal cost/performance solution for high-end
commercial and industrial applications where high CPU speed and
low mean-time-to-repair are critical.

Chapter 1 Hardware Configuration 3
Specifications
åSystem
•CPU: 80486SX-25, 80486SX-33, 80486DX-33, 80486DX2-50,
80486DX2-66, or 80486DX4-100
•Bus interface: ISA (PC/AT) bus
•System performance:
150 MHz with an 80486DX-33 MHz CPU (Landmark speed V1.14)
•Data bus: 32-bit
•DMA channels: 7
•Interrupt levels: 15
•Processing ability: 32-bit
•Bus speed: 8 MHz
•Chipset: ALI M1219
•Real-time clock/calendar:
Uses DS-12887 RTC chip and quartz oscillator, powered by a
lithium battery for 10 years of data retention
åMemory
•DRAM memory: 1 MB to 32 MB
Uses 256Kx36 (SIMM-256-8), 1Mx36 (SIMM-1000-8) or 4Mx36
(SIMM-4000-8) SIMMs with access time of 80 ns or less
•Shadow RAM memory: Support for system and video BIOS of up
to 256 KB in 32 KB blocks
åI/O
•IDE hard disk drive interface: Supports up to two IDE (AT bus)
hard disk drives. BIOS enabled/disabled
•Floppy disk drive interface:
Supports up to two floppy disk drives, 5¼" (360 KB and 1.2 MB)
and/or 3½” (720 KB and 1.44 MB). BIOS enabled/disabled

4PCA-6143P User's Manual
•Enhanced bi-directional parallel port: Configurable to LPT1,
LPT2, LPT3 or disabled. Standard female DB-25 connector
provided
•Serial ports: One serial RS-232 port, one serial RS-232/422/485
port. Ports can be individually configured as COM1, COM2 or
disabled
åIndustrial features
•Watchdog timer:
BIOS configurable to disabled or programmable ON/OFF. The
time-out interval is 0.5 sec. ~ 16 min. 48 sec.Your program uses
hex 043 and 443 to control the watchdog
•PC/104 connector:
A PC/104 16-bit bus connector for optional modules such as a
Flash/RAM/ROM disk module and/or Flat-panel/CRT VGA
modules
•Keyboard connectors: A 6-pin mini-DIN keyboard connector is
located on the mounting bracket for easy access.An external
keyboard adapter is also included. An on-board keyboard pin header
connector is also available.
åGeneral
•Max power required: + 5 V @ 2 A
•Power supply voltage: +5 V (4.75 V to 5.25 V)
•Operating temperature: 32 to 140oF (0 to 60oC)
•Size: 7.3" (L) x 4.8" (W) (185 mm x 122 mm)
•Weight: 1.1 lbs (0.5 Kg)
•EMI: Pending
•MTBF: 64,500 hrs @ 25oC; 39,100 hrs @ 60oC

Chapter 1 Hardware Configuration 5
Locating components
This section identifies the location of the card's major components. It
also includes a list of the function of each of the card jumpers. The
following figure gives an overall view of the card.
PCA-6143P PCB Layout
RS-232
RS-232/422
/485
14.318
24M
AMERICAN MEGATRENDS
AMIBIOS
386SX BIOS
486 SX/DX INDUSTRIAL CPU CARD REV.B1
J2
J1
COM1COM2
X2
X2
ALI
M1219-40
U1
J3
DALLAS
DS12887
SMC
FDC37C665
AMIKEY
8042
1 2 3 4 5
ON
SW1
JP1 JP2 JP3 JP4
U1
JP9 JP10
JP12
U2
U3
U5 U6
U8
U9
JP7 JP8 JP14 JP15 JP16
U23
U21
U18 U15
JP18
JP17 JP19
JP27 JP28
JP20 JP23
JP24 JP25 JP26 JP29 JP30
JP31
Q2
01
JP13
JP11
JP22
ROM1
ROM2 ROM3

6PCA-6143P User's Manual
Jumpers and connectors
Connectors on the board link it to external devices such as hard disk
drives, a keyboard or PC/104 modules. In addition, the board has a
number of jumpers which you use to configure it for your application.
The table below lists the function of each of the board jumpers and
connectors. Later sections in this chapter give instructions on setting
jumpers and detailed information on each jumper setting. Chapter 3
gives instructions for connecting external devices to your card. Pin
assignments for each connector appear there or in Appendix D.
Jumpers and connectors
Number Function Page
J1 Keyboard connector 17
J2 SBC Power Connector 19
J3 Keyboard connector (6-pin mini-DIN) 17
JP1 Hard disk drive activity LED 18
JP2, 3 CPU type selection 60
JP4 Bus clock selection 9
JP7 Reset switch 17
JP8 Watchdog timer
invokes system reset or IRQ15 9
JP9 Power LED and keylock 18
JP10 Speaker connector 19
JP11 Print IRQ selection 24
JP12 Turbo switch 18
JP13 Turbo LED 19
JP14 Bypass POST 8
JP15 Display type - color/mono 9
JP17 Parallel port DACK selection 24
JP18 Parallel port DRQ selection 24
JP19,23,24 SSD device selection 49
JP20,22,25,26, COM2 RS-232/422/485 selection 21
27,28,29,30
JP31 CPU voltage selection 60

Chapter 1 Hardware Configuration 7
Number Function Page
CN1 HDD connector 16
CN2 FDD connector 15
CN3 Parallel/printer connector 16
CN4,CN5 PC/104 connectors 61
COM1 RS-232 serial port 20
COM2 RS-232/422/485 serial port 21
SIMM memory modules
On the left end of the card (away from the mounting bracket) are the
two SIMM (Single In-line Memory Module) sockets which hold the
card’s DRAM memory. If you ordered DRAM SIMMs along with
your card, the SIMMs may already be installed. If not, you should
install them as described in Appendix C.
Flash/RAM/ROM disk
At the right of the card are three 32-pin sockets which hold the
memory chips for the card's Flash/RAM/ROM disk. Instructions for
installing memory chips appear in Appendix A.

8PCA-6143P User's Manual
Safety precautions
Follow these simple precautions to protect yourself from harm and
your PC from damage.
1. To avoid electric shock always disconnect the power from your PC
chassis before you work on it. Don’t touch any components of the
CPU card or other cards while the PC is on.
2. Disconnect power before making any configuration changes. The
sudden rush of power as you connect a jumper or install a card
may damage sensitive electronic components.
3. Always ground yourself to remove any static charge before you
touch your CPU card. Be particularly careful not to touch the chip
connectors. Modern integrated electronic devices, especially CPUs
and memory chips, are extremely sensitive to static electric
discharges and fields. Keep the card in its anti-static packaging
when it is not installed in the PC and place it on a static dissipative
mat when you are working on it. Wear a grounding wrist strap for
continuous protection.
Jumper settings
This section tells how to set the jumpers to configure your card. It
gives the card default configuration and your options for each jumper.
After you set the jumpers and install the card, you will also need to
run the BIOS Setup program (discussed in Chapter 5) to configure the
serial port addresses, floppy/hard disk drive types and system operat-
ing parameters. Connections, such as hard-disk cables, appear in
Chapter 3.
Card default setting
We set the card’s jumpers at the factory for the most popular configu-
ration. If this configuration matches your needs, you may not need to
change the jumpers at all. The default configuration is as follows:
• Watchdog invokes system reset • Color display is attached
• Parallel port IRQ7, DRQ1, DACK1 • Bypass POST (JP14)

Chapter 1 Hardware Configuration 9
How to set jumpers
You configure your card to match the needs of your application by
setting jumpers. A jumper is the simplest kind of electric switch. It
consists of two metal pins and a small metal clip (often protected by a
plastic cover) that slides over the pins to connect them. To “close” a
jumper you connect the pins with the clip. To “open” a jumper you
remove the clip. Sometimes a jumper will have three pins, labeled 1, 2
and 3. In this case you would connect either pins 1 and 2 or 2 and 3.
If you have any doubts about the best hardware configuration for your
application, contact your local distributor or sales representative
before you make any changes.
Display type (JP15)
This jumper sets the display adapter type attached to your card. If you
are using a monochrome LCD or EL screen which uses a CGA, EGA,
VGA or other color display adapter, set JP15 to color.
JP15 Setting
Open Monochrome
Closed (default) Color
Watchdog timer  system reset/IRQ15 (JP8)
When the watchdog timer activates (CPU processing has come to a
halt), it can reset the system or generate an interrupt on IRQ15. Set
jumper JP8 as shown in the following table:
JP8 Setting
1-2 System Reset
3-4 IRQ15
Bus clock selection (JP4)
JP4 Selection
1-2 Bus clk = CPU clk * 2/8
2-3 Bus clk = CPU clk * 2/6

10 PCA-6143P User's Manual
Card dimensions
Parallel Port Jumper Settings
Parallel Port IRQ selection (JP11)
JP11 IRQ no
1-2 IRQ7 (default)
2-3 IRQ5
Parallel Port DRQ selection (JP17)
JP17 DRQ no
1-2 DRQ1 (default)
2-3 DRQ3
Parallel Port DACK selection (JP18)
JP18 DACK no
1-2 DACK1 (default)
2-3 DACK3
The following figure gives card dimensions for SBC applications:

Chapter 2 Installation 11
2
Installation
This chapter gives guidelines for install-
ing your CPU card into an PC chassis
with an AT-compatible passive backplane.
For specific instructions, consult the
user’s manual for your chassis.
Before you begin, double check the
jumper settings for the card (described in
Chapter 1). This could save you a lot of
troubleshooting time later. If you are not
sure about the proper setting, contact your
local distributor or sales representative.
CHAPTER

12 PCA-6143P User's Manual
Warning! Disconnect all power from the chassis before you
install the CPU card. Unplug the power cord from
the wall, don’t just turn off the power switch. If
you are not sure what to do, take the job to an
experiencedprofessional.
Caution! The electronic components on this CPU card are
very sensitive to static electric charges. Use a
grounding wrist strap to remove all static electrici-
ty before you touch any components. Place all
components on a static-dissipative mat or in a
static-shielded bag when they are not in the
chassis.
Install your CPU card as follows:
1. Remove power from the chassis and disconnect all power
cords. Follow all power-down procedures outlined in your
chassis user’s manual.
2. Remove the chassis cover, then detach the card hold-down
bracket. This bracket stretches across the top of each circuit
card to hold it securely in place.
3. Locate a free slot in the chassis.You can use any 16-bit (double
connector) slot. We suggest that you leave the maximum
amount of space between boards to improve cooling.
4. You may need to remove a block-off cover at the end of the
slot. Unscrew the cover and save the screw for use in Step 6.
5. Align the card square with the card-end guide slot and parallel
to the connector. Slide the card carefully into the connector.
6. Make sure the card is completely seated in the connector.
Screw the card I/O bracket to the case.
After you have installed the CPU card, you will need to attach the
connecting cables as described in the following chapter. Replace
the card hold-down bracket you removed in Step 2, replace the
chassis cover and power-up your system.
Dimensions for SBC (Single Board Computer) installation appear
in Chapter 1 (page 10).

Chapter 3 Connecting peripherals 13
CHAPTER
3
Connecting
peripherals
This chapter tells how to connect periph-
erals, switches and indicators to the PCA-
6143P board.You can access most of the
connectors from at the top of the board
while it is installed in the chassis. If you
have a number of cards installed, or your
chassis is very tight, you may need to
partially remove the card to make all the
connections. When everything is done,
finish installing the card as described in
Chapter 2.

14 PCA-6143P User's Manual
The following table lists the connectors on the PCA-6143P. See
Chapter 1 (page 5) for help with locating the connectors.
Component Label Page
HDD (IDE) connector CN1 16
FDD connector CN2 15
Parallel port CN3 16
PC/104 connector CN4, CN5 61
Keyboard connectors J1, J3 17
Reset switch connector JP7 17
Power LED and keylock connector JP9 18
HDD LED connector JP1 18
Turbo switch connector JP12 18
Turbo LED connector JP13 19
External speaker connector JP10 19
SBC power connector J2 19
RS-232 serial port COM1 20
RS-232/422/485 serial port COM2 21
The following sections tell how to make each connection. In most
cases you will simply need to connect a standard cable. If you need
to make your own cables, you can find pin assignments for the
more complicated connectors in Appendix D.
Warning! Always completely disconnect the power cord
from your chassis whenever you are working on
it. Do not make connections while the power is
on, sensitive electronic components can be
damaged by the sudden rush of power. Only
experienced electronics personnel should open
the PC chassis.
Caution! Always ground yourself to remove any static
charge before touching the CPU card. Modern
electronic devices are very sensitive to static
electric charges. Use a grounding wrist strap at
all times. Place all electronic components on a
static-dissipative surface or in a static-shielded
bag when they are not in the chassis.

Chapter 3 Connecting peripherals 15
Floppy drive connections
You can attach up to two floppy disk drives to the PCA-6143P's
on-board controller.You can use any combination of 5.25"
(360 KB and 1.2 MB) and/or 3.5" (720 KB and 1.44 MB) drives.
The card comes with a 34-pin daisy-chain drive connector cable.
On one end of the cable is a 34-pin flat-cable connector. On the
other end are two sets of floppy disk drive connectors. Each set
consists of a 34-pin flat-cable connector (usually used for 3.5"
drives) and a printed-circuit-board connector (usually used for
5.25" drives).You can use only one connector in each set. The set
on the end (after the twist in the cable) connects to the A: floppy.
The set in the middle connects to the B: floppy.
Attach the single 34-pin flat-cable connector to CN2 on the CPU
card. For help finding the connector, see Chapter 1 (page 5). Wire
number 1 on the cable is red or blue, the other wires are gray.
Make sure that the red wire corresponds to pin one on the connec-
tor (on the right side).
Connect the A: floppy drive to the connector set on the other end
of the cable. If you are connecting a 5.25" floppy drive, line up the
slot in the printed-circuit-board (golden fingers) with the blocked-
off part of the cable connector.
If you are connecting a 3.5" floppy drive, you may have trouble
determining which pin is number one. Look for a number printed
on the circuit board indicating pin number one. Also, the connector
on the floppy drive connector may have a slot. When the slot is up,
pin number one should be on the right. Check the documentation
that came with the drive for more information.
Next, if required, connect the B: floppy drive to the connectors in
the middle of the cable as described above.
If you need to make your own cable, you can find the pin assign-
ments for the card’s connector in Appendix D.

16 PCA-6143P User's Manual
IDE hard drive connections
You can attach two IDE (Integrated Device Electronics) hard disk
drives to the PCA-6143P's internal controller. The card comes with
a 40-pin flat-cable piggyback cable. This cable has three identical
40-pin flat-cable connectors.
Wire number 1 on the cable is red or blue, the other wires are gray.
Connect one end to connector CN1 on the CPU card. Make sure
that the red wire corresponds to pin one on the connector (on the
right side). See Chapter 1 for help finding the connector.
Unlike floppy drives, IDE hard drives can connect in either
position on the cable. If you install two drives, you will need to set
one as the master and one as the slave.You do this using jumpers
on the drives. If you use just one drive, you should set it as the
master. See the documentation that came with your drive for more
information.
Connect the first hard drive to the other end of the cable. Wire one
on the cable should also connect to pin one on the hard drive
connector.You may have difficulty determining the pin number.
Look for a number printed on the drive circuit board. Check the
documentation that came with the drive for more information.
Connect a second drive as described above.
If you need to make your own cable, you can find the pin assign-
ments for the card’s connector in Appendix D.
Parallel Port
You would normally use the parallel port to connect the card to a
printer. The PCA-6143P includes an on-board parallel port,
accessed through a 26-pin flat-cable connector, CN3.The CPU
card comes with an adapter cable which lets you use a traditional
DB-25 connector. The cable has a 26-pin connector on one end

Chapter 3 Connecting peripherals 17
and a DB-25 connector on the other, mounted on a retaining
bracket. The bracket installs at the end of an empty slot in your
chassis, giving you access to the connector.
To install the bracket find an empty slot in your chassis. Unscrew
the plate that covers the end of the slot. Screw in the bracket in
place of the plate. Next, attach the flat-cable connector to connec-
tor CN3 on the CPU card. Wire one of the cable is red or blue, the
other wires are gray. Make sure that wire one connects to pin one
of CN3. Pin one is on the right side of CN3. For help finding the
connector, refer to Chapter 1 (page 5).
The pin assignments for the connector appear in Appendix D.
Keyboard connectors
The PCA-6143P board provides two keyboard connectors. A 5-pin
connector (J1) supports passive backplane applications.A second
6-pin mini-DIN connector (J3) on the card mounting bracket
supports single-board-computer applications. The card comes with
an adapter to convert from the 6-pin mini-DIN connector to a
standard DIN connector.
If you need to make your own adapter cable, you can find the pin
assignments in Appendix D.
External switches and indicators
Next you may want to install external switches to monitor and
control your CPU card.These features are completely optional —
install them only if you need them.
Reset switch (JP7)
You can connect an external switch to easily reset your computer.
This switch restarts your computer as if you had turned off the
power then turned it back on. Install the switch so that it closes the
two pins of JP7 when pressed (normally-open switch).

18 PCA-6143P User's Manual
Power LED and keylock (JP9)
You can connect an LED to indicate when the CPU card is on. Pin
1 of JP9 supplies power to the LED and Pin 3 is the ground. For
help finding JP9, refer to Chapter 1 (page 5).
You can use a switch (or a lock) to disable the keyboard. In this
state the PC will not respond to any input.This is useful if you
don’t want anyone to change or stop a running program. Simply
connect the switch between Pins 4 and 5 of JP9.The pin assign-
ments for JP9 appear in the following table:
Power LED and keylock (JP9)
Pin Function
1LED Power (+5 V)
2No Connection
3Ground
4Keyboard lock
5Ground
Hard disk drive LED (JP1)
You can connect a LED to connector JP1 to indicate when the
HDD is active. The pin on the top is positive.
Turbo switch (JP12)
You can connect a switch across the pins of jumper JP12 to change
the CPU between Turbo and non-Turbo mode. When you close
(short) the pins, the CPU card operates at full speed. When you
leave the pins open, the card operates at slow speed for compatibil-
ity with older software.
You can also switch the CPU back and forth betweenTurbo mode
and non-Turbo mode using the keyboard, but only when jumper
JP12 is open. When jumper JP12 is closed, the CPU is fixed in
Turbo mode. To switch into Turbo mode from the keyboard
simultaneously press the Ctrl, Alt and keypad plus (+) keys.To
switch into non-Turbo mode press the Ctrl, Alt and keypad minus
(-) keys.

Chapter 3 Connecting peripherals 19
Turbo LED (JP13)
You can connect a LED indicator across jumper JP13 to indicate
when the CPU is in Turbo mode. Marks on the circuit board
indicate LED polarity (the lower pin is positive).
External speaker (JP10)
The CPU card has its own buzzer. You can also connect to the
external speaker on your computer chassis. Connect leads to
connector JP10 as shown below:
External speaker (JP10)
Pin no. Function
1+5 VDC
2Speaker out
3Speaker out
4Speaker out
SBC power connector (J2)
In single-board-computer (non-passive-backplane) applications
you will need to connect power directly to the PCA-6143P board
using connector J2. This connector is fully compatible with the
standard PC power supply connector for a 3.5" FDD (or HDD).
See the following table for its pin assignments:
SBC power connector (J2)
Pin no. Function
1+5 VDC
2GND
3GND
4+12 VDC

20 PCA-6143P User's Manual
Serial Ports
The PCA-6143P offers two serial ports: one RS-232 and one
RS-232/422/485. These ports let you connect to serial devices (a
mouse, printers, etc.) or a communication network.
You can select the address for each port (3F8H [COM1], 2F8H
[COM2] or 3E8H) or disable it, through the BIOSAdvanced Setup
program, covered in Chapter 5.
The card mounting bracket holds the serial port connectors. This
lets you connect and disconnect cables after you install the card.
The DB-9 connector on the top of the bracket is the RS-232 port.
The second DB-9 connector is the RS-232/422/485 port. The
following sections tell how to make RS-232 and RS-232/422/485
connections.
RS-232 connections
Different devices implement the RS-232 standard in different
ways. If you are having problems with a serial device, be sure to
check the pin assignments for the connector.The following table
shows the pin assignments for the card's RS-232 port:
RS-232 connector pin assignment
Pin no. Signal
1DCD
2RX
3TX
4DTR
5GND
6DSR
7RTS
8CTS
9RI