Pro-face PS-3700A User manual

Compact Panel Computer
PS-3700A
(Pentium 4M - 1.7GHz Model)
User Manual

1
Introduction
The PS-3700A (Pentium®4M - 1.7GHz Model) (PS-A) of Compact Panel Computers are multipurpose factory automa-
tion (FA) computers, which embody Pro-face’s latest, cost-effective architecture. Before using the PS-A, read this manual
thoroughly to familiarize yourself with the PS-A’s operation procedures and functions.
Product names used in this manual are the trademarks of their respective manufacturers.
©Copyright 2004 Digital Electronics Corporation. All rights reserved.
NOTE
1. It is forbidden to copy the contents of this manual in whole, or in part, without the permission of the Digital Elec-
tronics Corporation.
2. The information in this manual is subject to change without notice.
3. This manual was written with care; however, if you should find any error or omissions, please contact Digital
Electronics Corporation and inform them of your findings.
4. Please be aware that Digital Electronics Corporation shall not be held liable by the user for any damages, losses,
or third party claims arising from the uses of this product.

2
Essential Safety Precautions
This manual includes the following cautions concerning procedures that must be followed to operate the PS-A correctly
and safely. Prior to operating the PS-A, be sure to read this manual and any related materials thoroughly to understand the
correct operation and functions of this unit.
Safety Icons
To allow you to use the PS-A correctly, throughout this manual, the following icons are provided next to operations
requiring special attention. These icons are used to describe the following situations:
Failure to fully comply with points indicated by this symbol may result in death or
serious injury.
Failure to fully comply with points indicated by this symbol may result in injury or
equipment damage.
Indicates actions or procedures that should NOT be performed.
Indicates actions or procedures that MUST be performed to ensure proper opera-
tion.
To avoid the possibility of an electric shock, be sure to disconnect the power cord to the PS-A before con-
necting it to the main power supply.
A fire or electrical shock may occur if voltages used with the PS-A are beyond the specified range. Be
sure to use only the specified voltage.
Before opening the PS-A’s protective cover, be sure to turn the unit's power OFF. This is because the PS-
A's internal parts carry high voltages.
To avoid fires or electrical hazards, do not modify the PS-A in any way.
Do not create touch panel switches that are used to either control or to ensure the safety of equipment
and personnel. Mechanical switches, such as an emergency stop switch, a deadman (two-handed) start
switch, etc., must be installed and operated via a separate control system.
Do not create touch panel switches which could possibly endanger the safety of humans and equipment.
This is due to the possibility of a malfunction in the PS-A or its cable(s), causing the output of a signal that
could result in a major accident. All of a system's major, safety-related switches should be designed to be
operated separately from the PS-A.

3
After the PS-A’s backlight burns out, unlike the PS-A’s “Standby Mode”, the touch panel is still active. If the
operator fails to notice that the backlight is burned out and touches the panel, a potentially dangerous
machine miss-operation can occur.
If your PS-A’s backlight suddenly turns OFF, use the following steps to determine if the backlight is actu-
ally burned out.
1) If your PS-A is not set to “Standby Mode” and the screen has gone blank, your backlight is burned out.
2) Or, if your PS-A is set to Standby Mode, but touching the screen does not cause the display to reap-
pear, your backlight is burned out.
If metal particles, water or other types of liquids contact any of the PS-A’s internal parts, immediately turn
the unit’s power OFF, unplug the power cord, and contact either your PS-A distributor or the Digital Elec-
tronics Corporation.
Read and understand Chapter 2 "Hardware Installation" thoroughly in order to select an appropriate instal-
lation location for the PS-A.
Before either plugging in or unplugging a board or interface connector, be sure to turn the PS-A’s power
OFF.
To prevent a possible explosion, do not install the PS-A in areas containing flammable gases.
The PS-A is not appropriate for use with aircraft control devices, aerospace equipment, central trunk data
transmission (communication) devices, nuclear power control devices, or medical life support equipment,
due to these devices’ inherent requirements of extremely high levels of safety and reliability.
When using the PS-A with transportation vehicles (trains, cars and ships), disaster and crime prevention
devices, various types of safety equipment, non-life support related medical devices, etc. redundant and/
or fail-safe system designs should be used to ensure the proper degree of reliability and safety.
Do not push on the PS-A’s screen too strongly, with either your finger or with a hard object. Excessive
pressure can scratch, crack or damage the screen. Also, do not use a pointed object, such as a mechani-
cal pencil or screwdriver, to press any of the touch panel's switches, since they can damage the display.
If the screen becomes dirty or smudged, moisten a soft cloth with diluted neutral detergent, wring the cloth
well, and wipe the display. Do not use thinner or organic solvents.
Avoid exposing the PS-A to, or operating the PS-A in direct sunlight, high temperatures and humidity, and
in areas where excessive dust and vibration will occur.
Avoid using the PS-A in areas where sudden, extreme changes in temperature can occur. This may cause
condensation to form inside the unit, possibly leading to an accident.
To prevent the PS-A from overheating, be sure its air circulation vents are clear and clean, and keep the
unit's operation area well-ventilated.
Avoid operating or storing the PS-A near chemicals, or where chemicals can come into contact with the
unit.

4
LCD Usage and Handling
• The PS-A’s LCD contains a strong irritant. If the panel is ever cracked and the LCD’s liquid contacts your skin, be sure
to wash it with running water for at least 15 minutes. If any of this liquid should enter your eye, be sure to flush your
eye with running water for more than 15 minutes and see a doctor as soon as possible.
• The brightness of the LCD screen will depend on the screen's current display and the LCD’s contrast adjustment. Any
brightness variations that result are normal for LCD displays.
• There are minute grid-points (Dark or Light points) on the LCD surface. These points are not defects and are a part of
the PS-A unit's design.
• The displayed color will look different when viewed from an angle outside the specified view angle. This is also nor-
mal.
• When installing this unit, be sure that the screen is viewable from within the designated viewing angles. The screen
image being difficult to see from outside its recommended viewing angle is normal.
• Displaying a single screen image for long periods of time can cause an afterimage to remain on the screen. To correct
this, turn the unit OFF for 5 to 10 minutes, then ON again. This phenomenon is a common attribute of LCD displays,
and is not a defect. To prevent this effect, you can:
1) Use the Display OFF feature; if the same image is to be displayed for a long period of time.
2) Change the screen display periodically to prevent the displaying of a single image for a long period of time.
When PS-A Hard Disk (HDD) data is lost:
The Digital Electronics Corporation cannot be held responsible or provide any compensation for dam-
age(s) caused by the loss of data stored in the PS-A’s hard disk drive (HDD). It is therefore strongly sug-
gested that all important data and software be backed up regularly to an external data backup device.
Please be aware that the Digital Electronics Corporation bears no responsibility for any damages resulting
from the customer's application of this unit's hardware or software.
Since the PS-A unit’s hard disk drive (HDD) is a consumable item, i.e. it has a limited lifetime, be sure to
back up its data regularly and prepare a spare HDD unit.
In order to extend the lifetime of the hard disk, Pro-face recommends you set the Windows [Control
panel]-[Power Management option]-[Turn off hard disks] selection to turn the hard disk off when the unit is
not being operated. A setting of 5 minutes is recommended.
To prevent file data damage, be sure to shut down the PS-A's OS before turning OFF the main power.
After turning OFF the PS-A’s power, wait until the internal HDD stops spinning before turning on the power
again (approx. 5 seconds).
When the PS-A unit’s standard display is connected to the PS-A using the USB connection, wait three (3)
seconds before turning the power ON again.

5
Information Symbols
This manual uses the following icons:
Indicates a warning or a product limitation. Be sure to follow the instructions given with
this icon to insure the safe operation of the PS-A.
Contains additional or useful information.
*Indicates terms or items that require further explanation. See the footnote on that page.
Indicates pages containing related information.
(1) (2) Indicates steps used to accomplish a given task.
Be sure to follow these steps in the order they are written.
PS-A Refers collectively to the Compact Panel Computers PS-3700A (Pentium®4M - 1.7GHz
Model) units.
SEE

6
Package Contents
The following items are included in the PS-A’s package. Before using the PS-A, please confirm that all items listed here
are present.
PS-A
(PS3700A-T41-ASU-P41) Installation Gasket (1)
Installation Fasteners (4/set x 2) USB Cable Clamp (1)
AC Power Cord (1) AC Power Cord Clamp (1)
CD-ROM (1) Installation Guide (1)
(PS3700A-P41 User Manual &Driver CD) (Japanese/English)
This unit has been carefully packed, with special attention to quality. However, should you find anything dam-
aged or missing, please contact your local PS-A distributor immediately.
• Be careful when installing the PS-A not to damage the built-in HDD.
• The Power Cord included in the FP unit's package is designed only for AC100V
or AC115V use. Any other voltage will require a different cord.
• The CD-ROM included in this package contains a User Manual, API Reference Manual,
and PS-A Series Utility and Driver files.
Chapter 4 Setting up Your PS-A Unit (page4-1)
• When you order a PS-A unit built to your specifications, that PS-A package should
include each optional item's Installation Guide. Please use that guide to check the con-
tents of each optional item's package.
Installation
Guide
SEE

7
UL/CSA Application Notes
The PS3700A-T41-ASU-P41 unit is a UL/CSA listed product (UL File No. E220851). Please pay special attention to the
following instructions when applying for UL/CSA approval for machinery which includes this PS-A unit.
The PS-A conforms as a component to the following standards:
UL508 Industrial Control Equipment
CAN/CSA22.2 No.14-1955 and CAN/CSA22.2 No.60950
PS3700A-T41-ASU-P41 (UL Registration Model No.:3180046-01)
- Equipment with a PS-A unit mounted in it requires UL/CSA evaluation for the combination of the PS-A and equip-
ment.
- The PS-A must be used as a built-in component of an end-use product.
- Use the PS-A indoors only.
- When connecting the PS-A’s power cord, be sure to use a cord that is appropriate for the current and voltage used and
that has conductive wires that are 0.75 mm2or larger.
- When using the PS-A in an end-use product, be sure to install the PS-A unit’s power cut-off switch where the operator
can easily reach it.
- Danger of explosion if backup battery is incorrectly replaced. Should be replaced only with same or equivalent type
recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s instructions.
- Be sure the unit the PS-A is built into uses a UL508 compatible structure.

8
CE Marking Notes
The PS3700A-T41-ASU-P41 unit is a CE marked, EMC compliant product.
<Complies with the following Standards>
Safety
EN60950
EMI
EN61000-6-4 (Group 1, Class A)
EMS (EN61000-6-2)
EN61131-2,EN61000-4-2,EN61000-4-3,EN61000-4-4,EN61000-4-5, EN61000-4-6, EN61000-4-8, EN61000-4-11,
EN61000-4-12
FCC
47 CFR Part 15 Class A
If the following requirements are not met, the PS-A may fail to meet EN60950 standard requirements.
• The PS-A must be used as a built-in component of an end-use product.
• Use the PS-A indoors only.
• When connecting the PS-A’s power cord, be sure to use a cord that is appropriate for the current and voltage used and
that has conductive wires that are 0.75 mm2or larger.
• When using the PS-A in an end-use product, be sure to install the PS-A unit’s power cut-off switch where the operator
can easily reach it.
• There is a danger of explosion if the backup battery is incorrectly replaced. This battery should be replaced only with
same or equivalent type recommended by the manufacturer. Dispose of used batteries according to the manufacturer’s
instructions.
• Be sure the PS-A unit’s enclosure is an EN60950 approved sheet steel structure.

9
Contents
Introduction................................................................................................................ 1
Essential Safety Precautions..................................................................................... 2
Information Symbols.................................................................................................. 5
Package Contents..................................................................................................... 6
UL/CSA Application Notes ........................................................................................ 7
CE Marking Notes..................................................................................................... 8
Contents.................................................................................................................... 9
CHAPTER 1 Overview
1.1 Prior to Operating the PS-A Unit.....................................................................1-2
1.2 PS-A Unit System Configuration.....................................................................1-3
1.2.1 Setting Up the Touch Panel Connection...............................................................1-4
1.2.2 Using the USB Interface (located on the front face) .............................................1-4
1.3 PS-A Unit Part Names and Features..............................................................1-5
1.4 Interfaces........................................................................................................1-7
1.4.1 Serial Interface (COM1/COM2/COM3/COM4)......................................................1-7
1.4.2 Printer Interface (LPT1) ......................................................................................1-11
1.5 PS-A Unit External Views and Dimensions...................................................1-12
1.5.1 PS-A Unit............................................................................................................1-12
1.5.2 External Dimensions (with Installation Fasteners installed)................................1-13
1.5.3 Panel Cut Dimensions ........................................................................................1-14
1.5.4 Installation Fasteners..........................................................................................1-14
CHAPTER 2 Hardware Installation
2.1 Installation.......................................................................................................2-2
2.1.1 Removing the PS-A Unit's Cover..........................................................................2-2
2.1.2 PS-A Internal View................................................................................................2-3
2.1.3 Main Memory Installation......................................................................................2-4
2.1.4 Expansion Board (PCI) Installation.......................................................................2-4
2.1.5 PCMCIA Unit Installation ......................................................................................2-6
2.1.6 USB Cable Clamp Installation...............................................................................2-7
2.1.7 CF Card Installation and Removal........................................................................2-8
2.2 Installing the PS-A Unit.................................................................................2-10
2.2.1 Installation Caution .............................................................................................2-10
2.2.2 Installation Procedures .......................................................................................2-12
2.3 Wiring the PS-A ............................................................................................2-16
2.3.1 Connecting the Power Cord................................................................................2-16

10
2.3.2 Power Supply Cautions.......................................................................................2-17
2.3.3 Grounding Cautions............................................................................................2-19
2.3.4 Cautions When Connecting I/O Signal Lines......................................................2-19
CHAPTER 3 System Setup
3.1 Setup Procedures........................................................................................... 3-2
3.2 System Parameters........................................................................................ 3-3
3.2.1 Standard CMOS Features.....................................................................................3-3
3.2.2 IDE HDD Auto-Detection ......................................................................................3-5
3.2.3 Advanced BIOS Features.....................................................................................3-6
3.2.4 Advanced Chipset Features..................................................................................3-9
3.2.5 Integrated Peripherals.........................................................................................3-11
3.2.6 Power Management Setup .................................................................................3-15
3.2.7 PnP/PCI Configurations......................................................................................3-17
3.2.8 IRQ Resources ...................................................................................................3-19
3.2.9 System Monitor Setup.........................................................................................3-20
3.2.10 Frequency/Voltage Control ...............................................................................3-22
3.2.11 Load Fail-Safe Defaults.....................................................................................3-22
3.2.12 Load Optimized Defaults...................................................................................3-22
3.2.13 Set Supervisor Password..................................................................................3-23
3.2.14 Set User Password...........................................................................................3-23
3.2.15 Save & Exit Setup.............................................................................................3-23
3.2.16 Exit Without Saving...........................................................................................3-23
CHAPTER 4 Setting up Your PS-A Unit
4.1 CD-ROM Contents.......................................................................................... 4-2
4.1.1 Software................................................................................................................4-2
4.2 Setting Up Your PS-A Unit.............................................................................. 4-3
4.2.1 Setup Procedures.................................................................................................4-3
4.2.2 Setting Up an HDD with Pre-installed OS.............................................................4-4
4.3 Installing Drivers............................................................................................. 4-6
4.4 Special Application Program Features............................................................ 4-7
4.4.1 Uninstalling Utility Software ..................................................................................4-9
4.5 When Using Windows®2000/Windows®XP................................................. 4-10
4.5.1 Automatic System Log-on Setup ........................................................................4-10
4.5.2 Uninterrupted Power Supply System (UPS).......................................................4-11
4.5.3 Changing System Settings..................................................................................4-11
4.5.4 NTFS File System Conversion............................................................................4-11

11
CHAPTER 5 Monitoring Features
5.1 RAS Features .................................................................................................5-2
5.1.1 PS-A RAS Features..............................................................................................5-2
5.1.2 RAS Feature Details.............................................................................................5-3
5.1.3 RAS Feature Overview.........................................................................................5-5
5.2 System Monitor/RAS Features.......................................................................5-6
5.2.1 Setup Procedures.................................................................................................5-6
5.2.2 System Monitoring Property Settings (PSA_Wps.exe).........................................5-7
5.2.3 System Monitoring Operation (PSA_Smon.exe)...................................................5-9
5.2.4 Error Messages ..................................................................................................5-12
5.3 Error Displays When Using Event Viewer.....................................................5-14
5.3.1 Error Message Display .......................................................................................5-14
5.3.2 Error Type/Location ............................................................................................5-15
5.3.3 Error Action.........................................................................................................5-15
5.4 Remote RAS.................................................................................................5-16
5.4.1 System Configuration .........................................................................................5-16
5.4.2 Installation Procedures .......................................................................................5-17
5.4.3 Setup and Preparation of the Remote RAS Feature...........................................5-17
5.4.4 Read and Write of the System Monitor/RAS Feature.........................................5-19
5.4.5 Restrictions.........................................................................................................5-22
5.5 Remote Shutdown Feature...........................................................................5-23
CHAPTER 6 Maintenance and Inspection
6.1 Regular Cleaning............................................................................................6-2
6.1.1 Cleaning the Display.............................................................................................6-2
6.1.2 Installation Fan Replacement ...............................................................................6-3
6.2 Cleaning the Fan Filter ...................................................................................6-3
6.3 Changing the PS-A Backlight .........................................................................6-4
6.4 Periodic Inspection Items................................................................................6-8
CHAPTER 7 Specifications
7.1 General Specifications....................................................................................7-2
7.1.1 Electrical Specifications...................................................................................................7-2
7.1.2 Environment..........................................................................................................7-2
7.1.3 Structural Specifications..................................................................................................7-4
7.2 Performance Specifications ............................................................................7-5
7.2.1 Performance Specifications ..................................................................................7-5
7.2.2 Display Functions .................................................................................................7-6
7.2.3 Expansion Slots....................................................................................................7-6
7.2.4 Clock Accuracy.....................................................................................................7-6

12
Appendices
A.1 Hardware Configuration..............................................................................App-2
A.1.1 I/O Map............................................................................................................ App-2
A.1.2 Memory Map.................................................................................................... App-3
A.1.3 Interrupt Map................................................................................................... App-4
A.2 List of Optional Devices..............................................................................App-5
A.3 Consent Agreement....................................................................................App-6
INDEX

1-1
1Overview
1. Prior to Operating the PS-A Unit
2. PS-A Unit System Configuration
3. PS-A Unit Part Names and Features
4. Interfaces
5. PS-A Unit External Views and Dimensions
This chapter describes the procedures required prior to operating the PS-A. It also explains the types of
peripheral devices that can be connected to the PS-A.

Compact Panel Computer PS-3700A (Pentium®4M - 1.7GHz Model) User Manual
1-2
1.1 Prior to Operating the PS-A Unit
The following explanation shows the preparation steps required prior to operating the PS-A.
• After hardware setup is completed, the OS must be used to create partitions and
format (initialize) the HDD before any data or applications can be saved to the
hard disk drive. For details concerning these procedures, refer to the OS manu-
facturer's instruction manual.
• Whenever you turn the PS-A unit's power OFF, wait until the internal HDD stops
spinning (approximately 5 seconds) before turning the power ON again.
• The PS-A’s hard disk is designed for use with the Windows®2000, Windows®XP.
Other operating systems do not support this driver software, etc.
Connect the display unit and any optional devices.
Connect the PS-A unit's power cord to AC Intercon-
nection and turn the power switch ON.
Configure the PS-A unit's BIOS.
Install all required software. For software instal-
lation instructions, refer to the manual provided
with that product.
SEE
1.2 PS-A Unit System Configuration
(page1-3)/1.3 PS-A Unit Part Names
and Features (page1-5)
SEE
2.3 Wiring the PS-A (page2-16)
SEE
Chapter 3 System Setup (page3-1)
Connect Peripheral Devices
Connect Power
Set Up the System
Install an OS
Install PS3700A-P41
User Manual and Driver CD Data
Install Required Device Drivers
Install Required Software
Install the PS-A Unit
[When PS-A has no preinstalled OS]
Install a commercial OS
in your PS-A. For how to
setup the OS, refer to
the manual provided
with the product.
[When PS-A has preinstalled OS]

Chapter 1 Overview
1-3
1.2 PS-A Unit System Configuration
The following chart shows the range of peripheral items connected to the PS-A.
• This diagram shows only the PS-A’s internal layout and connectable devices. The
user’s actual design may differ.
PS3700A-T41-ASU-P41
Inside PS-A unit
Bottom of PS-A unit
Side of PS-A unit
Front of PS-A unit
COM1/COM2/COM3/COM4
IDE Connector
Printer Connector
LAN Connector
Mouse Connector
PCMCIA Connector
(2 ports)
Keyboard Connector
CD-ROM Drive
FD Drive
Expansion Slot
*1 Built-in accessory only
*2 The Digital Electronics Corporation's optional devices used with the PS-A. Please refer to A.2 List of Optional Devices
Line Input Connector
USB Connectors
(2 ports)
USB Connector
(1 port)
CF Card Slots
(TYPE1, 1 port)
Mike Input Connector
Speaker Out Connector
Hub
Speaker
Mike
PS/2 Mouse
PS/2 Keyboard
CF
Central Network Line
HDD Unit*1*2
Main Memory Module*1*2
CF Cards*2
CF
CF Cards*2
Main Memory
Connector
Peripherals
(commercial type)
Peripherals
(commercial type)
USB 2.0 or 1.1 Compatible
Peripherals(commercial type)
USB 1.1 Compatible
Peripherals(commercial type)
Peripherals
(commercial type)
CF Card Adaptor*2
PCMCIA Card
(commercial type)
(commercial type)
(commercial type)
Pin-jack Cable
(commercial type)
Printer Cable
(commercial type)
10BASE-T/100BASE-TX
Cable (commercial type)
RS-232C Cable

Compact Panel Computer PS-3700A (Pentium®4M - 1.7GHz Model) User Manual
1-4
1.2.1 Setting Up the Touch Panel Connection
The connection method used can be via either a serial (RS-232C) or USB interface. Depending on the type of
Touch Panel connection used, the OS types that can be used will vary.
Touch Panel's Communication Changeover Switch
Changes the Touch Panel Communication method (Serial ↔USB). For the details about the switch,
Mouse Emulation Software(UPDD)
When installing the Mouse Emulation Software, be sure to select USB.
1.2.2 Using the USB Interface (located on the front face)
SEE
1.4.1 Serial Interface (COM1/COM2/COM3/COM4) (page1-7)
• Whenever changing any PS-A switch settings, be sure to first turn the PS-A’s
power supply OFF. Failure to do so can cause a PS-A malfunction.
• If “Serial” is selected, COM4 cannot be used.
• USB HUB cannot be connected to the USB Interface located on the front face.
• The USB Interface located on the front face is for USB Ver. 1.1 compatible. USB
Ver.2.0 compatible devices cannot be connected to this Interface.

Chapter 1 Overview
1-5
1.3 PS-A Unit Part Names and Features
Front
Rear
Sides
Top
12 3
4
5
6
7
8
10 12
11
13
18 20 25 26 28 29
14
15
16 21 23
17 Bottom
22
19 24 27
9
1 : Display / Touch Panel
2 : Power Lamp LED (POWER)
3 : IDE Access Lamp
4 : Front Packing
5 : Hardware Reset Switch (RESET)
Pressing this switch re-starts the PS-A unit.
6 : USB Connector (1 port)
Provides a USB Ver.1.1 compatible connection.
Connect a USB compatible device here.*1
7 : Arm Attachment Screw Holes
(VESA 75mm)
8 : Power Switch
9 : Expansion Board Support
10 : FD Drive
11 : CD-ROM Drive
12 : PCMCIA Connectors (PCMCIA)(2 ports)
13 : Rear Cover
This cover is removed when installing an HDD unit,
main memory, or Expansion unit (PCI).
14 : Mouse Connector (MOUSE)
Connect a PS/2-compatible mouse here.
15 : Keyboard Connector (KEYBOARD)
Connect a PS/2-compatible keyboard here.
16 : Expansion Slot
17 : LAN Connector (LAN)
(10 BASE-T /100 BASE-TX)
18 : USB Connectors (2 ports)
Provides a USB Ver.2.0 compatible connection.
Connect a USB compatible device here.
19 : RS-232C Connector (COM1)
[+5V/RI Changeover]
20 : RS-232C Connector (COM2)
[+5V/RI Changeover]
LED PS-A Status
Green Normal Operation
(Power On)
Orange System Monitor Error
Touch Panel Self Test Error
Orange/Red Backlight is not functioning
LED PS-A Status
Green Currently using IDE I/F
*1 USB HUB and USB Ver.2.0 compatible
devices cannot be connected.

Compact Panel Computer PS-3700A (Pentium®4M - 1.7GHz Model) User Manual
1-6
• Prior to attaching peripheral units to the PS-A, be sure the PS-A’s power cord is
disconnected from the main power supply.
• To prevent an electrical shock, be sure to disconnect the PS-A’s power cord from
the power supply before connecting the cord or any peripheral devices to the
PS-A.
21 : RS-232C Connector (COM3)
[RS-422/RS-485 Changeover]
22 : RS-232C Connector (COM4)
23 : Line Input Connector (LINE IN)
24 : Speaker Output Connector (SPEAKER OUT)
25 : Mike Input Connector (MIC IN)
26 : Printer Connector (LPT1)
27 : Cooling FAN
28 : CF Card Slot
29 : AC Inlet Connector

Chapter 1 Overview
1-7
1.4 Interfaces
1.4.1 Serial Interface (COM1/COM2/COM3/COM4)
RS-232C Interface (COM1/COM2/COM3/COM4)
RS-422 Interface (COM3)
RS-485 Interface (COM3)
Pin Arrangement PIN# Signal Condition Direction
1 CD Carrier Detect Input
2 RXD Receive Data Input
3 TXD Send Data Output
4 DTR Data Terminal Ready Output
5 GND Signal Ground -
6 DSR Data Set Ready Input
7 RTS Request Send Output
8 CTS Clear Send Input
9 RI / 5V Ring Indicate In/Output
FG FG Frame Ground -
Pin# Signal Condition Direction
1 RXA Receive Data (+) Input
2 RXB Receive Data (-) Input
3 TXA Send Data (+) Output
4 NC No Connection -
5 GND Ground -
6 NC No Connection -
7 TXB Send Data (-) Output
8 NC No Connection -
9 NC No Connection -
FG FG Frame Ground -
Pin# Signal Condition Direction
1 DATA+ Send/Receive Data (+) In/Output
2 DATA- Send/Receive Data (-) In/Output
3 NC No Connection -
4 NC No Connection -
5 GND Signal Ground -
6 NC No Connection -
7 NC No Connection -
8 NC No Connection -
9 NC No Connection -
FG FG Frame Ground -
16
59