ASSURED PCIe-COM Series PCI Express 4 and 2 Port Serial Communication Cards User Manual
- September 11, 2024
- ASSURED
Table of Contents
PCIe-COM Series PCI Express 4 and 2 Port Serial Communication Cards
“`html
Specifications:
-
Model: ACCES I/O PCIe-COM232-2DB/2RJ
-
Models Available: PCIe-COM-4SMDB, PCIe-COM-4SMRJ,
PCIe-COM-4SDB, PCIe-COM-4SRJ, PCIe-COM232-4DB, PCIe-COM232-4RJ,
PCIe-COM-2SMDB, PCIe-COM-2SMRJ, PCIe-COM-2SDB, PCIe-COM-2SRJ,
PCIe-COM232-2DB, PCIe-COM232-2RJ -
Interface: PCI Express
-
Ports: 4- and 2-Port RS-232/422/485 Serial Communication
Cards
Product Usage Instructions:
1. Installation:
Before installing the ACCES I/O PCIe-COM232-2DB/2RJ card, ensure
that the computer power is turned off. Connecting or disconnecting
cables with the power on can cause damage.
2. Warranty Information:
ACCES equipment is thoroughly inspected before shipment. In case
of equipment failure, repairs or replacements will be provided as
per warranty terms. Refer to the user manual for detailed warranty
coverage.
3. Address Selection:
Refer to Chapter 4 of the user manual for information on address
selection for the communication card.
4. Programming:
Chapter 5 of the user manual provides details on programming the
card. Sample programs and a Windows COM utility program are
available for assistance.
FAQ:
Q: What should I do if the card is not recognized by the
computer?
A: Ensure that the card is properly installed in a compatible
PCIe slot and that all necessary drivers are correctly installed on
your system. If issues persist, contact technical support for
further assistance.
“`
ACCES I/O PCIe-COM232-2DB/2RJ Get Quote
10623 Roselle Street, San Diego, CA 92121 ·
858-550-9559 · FAX
858-550-7322 contactus@accesio.com ·
www.accesio.com
MODELS PCIe-COM-4SMDB, PCIe-COM-4SMRJ,
PCIe-COM-4SDB, PCIe-COM-4SRJ, PCIe-COM232-4DB, PCIe-COM232-4RJ, PCIe-COM-
2SMDB, PCIe-COM-2SMRJ,
PCIe-COM-2SDB, PCIe-COM-2SRJ, PCIe-COM232-2DB, PCIe-COM232-2RJ
PCI Express 4- and 2-Port RS-232/422/485 Serial Communication Cards
USER MANUAL
FILE: MPCIe-COM-4SMDB and RJ Family Manual.A1d
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Notice
The information in this document is provided for reference only. ACCES does
not assume any liability arising out of the application or use of the
information or products described herein. This document may contain or
reference information and products protected by copyrights or patents and does
not convey any license under the patent rights of ACCES, nor the rights of
others.
IBM PC, PC/XT, and PC/AT are registered trademarks of the International
Business Machines Corporation.
Printed in USA. Copyright 2010 by ACCES I/O Products Inc, 10623 Roselle
Street, San Diego, CA 92121. All rights reserved.
WARNING!!
ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING WITH THE COMPUTER POWER OFF.
ALWAYS TURN COMPUTER POWER OFF BEFORE INSTALLING A CARD. CONNECTING AND
DISCONNECTING CABLES, OR INSTALLING CARDS INTO A SYSTEM WITH THE COMPUTER OR
FIELD POWER ON MAY CAUSE DAMAGE TO THE I/O CARD AND WILL VOID ALL WARRANTIES,
IMPLIED OR EXPRESSED.
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Warranty
Prior to shipment, ACCES equipment is thoroughly inspected and tested to
applicable specifications. However, should equipment failure occur, ACCES
assures its customers that prompt service and support will be available. All
equipment originally manufactured by ACCES which is found to be defective will
be repaired or replaced subject to the following considerations.
Terms and Conditions
If a unit is suspected of failure, contact ACCES’ Customer Service department.
Be prepared to give the unit model number, serial number, and a description of
the failure symptom(s). We may suggest some simple tests to confirm the
failure. We will assign a Return Material Authorization (RMA) number which
must appear on the outer label of the return package. All units/components
should be properly packed for handling and returned with freight prepaid to
the ACCES designated Service Center, and will be returned to the
customer’s/user’s site freight prepaid and invoiced.
Coverage
First Three Years: Returned unit/part will be repaired and/or replaced at
ACCES option with no charge for labor or parts not excluded by warranty.
Warranty commences with equipment shipment.
Following Years: Throughout your equipment’s lifetime, ACCES stands ready to
provide on-site or in-plant service at reasonable rates similar to those of
other manufacturers in the industry.
Equipment Not Manufactured by ACCES
Equipment provided but not manufactured by ACCES is warranted and will be
repaired according to the terms and conditions of the respective equipment
manufacturer’s warranty.
General
Under this Warranty, liability of ACCES is limited to replacing, repairing or
issuing credit (at ACCES discretion) for any products which are proved to be
defective during the warranty period. In no case is ACCES liable for
consequential or special damage arriving from use or misuse of our product.
The customer is responsible for all charges caused by modifications or
additions to ACCES equipment not approved in writing by ACCES or, if in ACCES
opinion the equipment has been subjected to abnormal use. “Abnormal use” for
purposes of this warranty is defined as any use to which the equipment is
exposed other than that use specified or intended as evidenced by purchase or
sales representation. Other than the above, no other warranty, expressed or
implied, shall apply to any and all such equipment furnished or sold by ACCES.
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TABLE OF CONTENTS
Chapter 1: Introduction ……………………………………………………………………………………………………… 5
Features…………………………………………………………………………………………………………………………… 5
Applications…………………………………………………………………………………………………………………….. 5 Functional
Description …………………………………………………………………………………………………… 6 Figure 1-1: Block Diagram
………………………………………………………………………………………….. 6 Ordering Guide
……………………………………………………………………………………………………………….. 7 Model
Options…………………………………………………………………………………………………………………. 7 Optional
Accessories……………………………………………………………………………………………………… 7 Special
Order…………………………………………………………………………………………………………………… 8 Included with your board
……………………………………………………………………………………………….. 8
Chapter 2: Installation………………………………………………………………………………………………………… 9 CD Software
Installation…………………………………………………………………………………………………. 9 Hardware Installation
……………………………………………………………………………………………………. 10 Figure 2-1: Port Configuration
Utility Screenshot…………………………………………………… 10
Chapter 3: Hardware Details ……………………………………………………………………………………………. 11 Figure
3-1: Option Selection Map DB Models ……………………………………………………….. 11 DB9M
connector………………………………………………………………………………………………………… 11 Figure 3-2: Option
Selection Map RJ Models………………………………………………………… 12 RJ45
connector………………………………………………………………………………………………………….. 12
Factory Option Descriptions………………………………………………………………………………………… 13 Fast RS-232
transceivers (-F) …………………………………………………………………………………… 13 Remote Wake-Up
(-W)……………………………………………………………………………………………….. 13 Extended temperature
(-T)………………………………………………………………………………………… 13 RoHS compliance
(-RoHS)………………………………………………………………………………………… 13
Chapter 4: Address Selection………………………………………………………………………………………….. 14 Chapter 5:
Programming………………………………………………………………………………………………….. 15
Sample Programs………………………………………………………………………………………………………….. 15 Windows COM
Utility Program…………………………………………………………………………………….. 15
Table 5-1: Baud Rate Generator Setting ………………………………………………………………….. 15 Table
5-2: Sample Baud Rate Setting………………………………………………………………………. 16 Chapter 6:
Connector Pin Assignments …………………………………………………………………………. 17 Input/Output
Connections ……………………………………………………………………………………………. 17 Table 6-1: DB9 Male
Connector Pin Assignments ………………………………………………….. 17 Figure 6-1: DB9 Male
Connector Pin Locations………………………………………………………. 17 Table 6-2: RJ45 Connector Pin
Assignments………………………………………………………….. 17 Figure 6-2: RJ45 Connector Pin
Locations……………………………………………………………… 17 Table 6-3: COM signal names to
corresponding signal descriptions …………………… 18 Chapter 7:
Specifications…………………………………………………………………………………………………. 19 Communications
Interface …………………………………………………………………………………………… 19
Environmental……………………………………………………………………………………………………………….. 19 Customer Comments
……………………………………………………………………………………………………….. 20
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Chapter 1: Introduction
The PCI Express Multiport Serial cards were designed for RS232, RS422 and
RS485 asynchronous communications for use in a variety of applications. These
boards were designed to offer compatibility with the PCI Express bus and to be
used by system integrators and manufacturers in the design of industrial and
commercial communication systems. The card is available in 4-port and 2-port
versions and is compatible with all popular operating systems. Each COM port
is capable of supporting data rates up to 3Mbps (460.8kbps in RS232 mode is
standard) and implements full RS-232 modem control signals to ensure
compatibility with a wide range of serial peripherals. Existing serial
peripherals can connect directly to the industry standard DB9M connectors or
via RJ45 connectors. The board features a x1 lane PCI Express connector which
can be used in any length PCI Express slot.
Features
· Four- and two-port PCI Express serial communication cards with on board DB9M
or RJ45 connectivity
· Serial protocol (RS-232/422/485) SOFTWARE CONFIGURED per port, stored in
EEPROM for auto-configure at next boot
· High performance 16C950 class UARTs with 128-byte FIFO for each transmit and
receive buffer
· Supports data communication speeds up to 3Mbps (standard model RS-232 is
460.8kbps)
· ESD protection +/-15kV on all signal pins · Supports 9-bit data mode · Full
modem control signals in RS-232 mode · Software compatible with all operating
systems · Jumper selectable termination for RS-485 applications Applications
· POS (Point-of-sale) Systems · Gaming Machines · Telecommunications ·
Industrial Automation · ATM (Automated Teller Machine) Systems · Multiple
terminal control · Office Automation · Kiosks
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Functional Description These cards feature high performance 16C950 class UARTs
which support the complete register set of the standard 16C550-type devices.
The UARTs support operations in 16C450, 16C550 and 16C950 modes. Each port is
capable of data communication speeds up to 3Mbps (standard model up to
460.8kbps in RS-232 mode) in asynchronous mode and has 128-byte deep transmit
and receive FIFOs to protect against lost data in multitasking operating
systems, to help reduce CPU utilization and to improve data throughput.
Serial protocol (RS-232/422/485) is software configured per port via a Port
Configuration Utility provided on the CD which ships with each card. When
RS-485 is selected, jumper selectable termination is provided per port.
Four-port “DB” models (PCIe-COM-4SMDB, PCIe-COM-4SDB, PCIe-COM232-4DB) ship
with a additional mounting bracket and cable. This plugs directly into the
dual 10-pin IDC headers on board and mounts to the next adjacent bracket slot.
A crystal oscillator is located on the card. This oscillator permits precise
selection of a multitude of different baud rates.
Figure 1-1: Block Diagram
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Ordering Guide
· PCIe-COM-4SMDB PCI Express four-port RS-232/422/485 · PCIe-COM-4SMRJ PCI Express four-port RS-232/422/485 · PCIe-COM-4SDB PCI Express four-port RS-422/485 · PCIe-COM-4SRJ PCI Express four-port RS-422/485 · PCIe-COM232-4DB* PCI Express four-port RS-232 · PCIe-COM232-4RJ PCI Express four-port RS-232 · PCIe-COM-2SMDB PCI Express two-port RS-232/422/485 · PCIe-COM-2SMRJ PCI Express two-port RS-232/422/485 · PCIe-COM-2SDB PCI Express two-port RS-422/485 · PCIe-COM-2SRJ PCI Express two-port RS-422/485 · PCIe-COM232-2DB PCI Express two-port RS-232 · PCIe-COM232-2RJ PCI Express two-port RS-232
DB = DB9M connectivity RJ = RJ45 connectivity
- Four-port DB models require the use of a provided additional mounting bracket. Model Options
· -T · -F · -RoHS · -W
Extended temp. operation (-40° to +85°C) Fast version (RS-232 up to 921.6kbps) RoHS compliant version Remote wake-up enable (see Chapter 3: Hardware Details)
Optional Accessories
ADAP9
Screw terminal adaptor DB9F to 9 screw terminals
ADAP9-2
Screw terminal adaptor with two DB9F connectors and 18 screw terminals
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Special Order Virtually any custom baud rate can be achieved with the standard
card (see Table 5-2: Higher Baud Rate Register Settings) and still be within
the standard tolerance range for serial communications. If that method doesn’t
produce an exact enough baud rate a custom crystal oscillator may be
specified, contact factory with your precise requirement. Examples of special
orders would be conformal coating, custom software, etc., we will work with
you to provide exactly what is required.
Included with your board The following components are included with your
shipment, depending on options ordered. Please take the time now to ensure
that no items are damaged or missing.
· Four- or two-port card · 2 x Header to 2 x DB9M cable/bracket for Four-port
“DB” model cards · Software Master CD · Quick-Start Guide
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Chapter 2: Installation
A printed Quick-Start Guide (QSG) is packed with the card for your
convenience. If you’ve already performed the steps from the QSG, you may find
this chapter to be redundant and may skip forward to begin developing your
application.
The software is provided with this card on the CD and must be installed onto
your hard disk prior to use. Perform the following steps as appropriate for
your operating system.
A complete driver support package is provided including an easy-to-use Windows
terminal program for testing out your COM ports. This simplifies the
verification of proper COM port operating. The card installs as standard COM
ports in all operating systems.
A software reference manual is installed as part of the software and support
package for this product. Please refer to this document for extensive
information and guidance on software tools and programming support at your
disposal.
CD Software Installation
The following instructions assume the CD-ROM drive is drive “D”. Please
substitute the appropriate drive letter for your system as necessary.
DOS 1. Place the CD into your CD-ROM drive. 2. Type B- to change the active
drive to the CD-ROM drive. 3. Type GLQR?JJ- to run the install program. 4.
Follow the on-screen prompts to install the software for this board.
Windows 1. Place the CD into your CD-ROM drive. 2. The system should
automatically run the install program. If the install program does not run
promptly, click START | RUN and type BGLQR?JJ, click OK or press -. 3. Follow
the on-screen prompts to install the software for this board.
Linux 1. Please refer to linux.htm on the CD-ROM for information on installing
under linux.
Note: COM boards can be installed in virtually any operating system. We do
support installation in earlier versions of Windows, and are also likely to
support future versions.
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Hardware Installation
Caution! * ESD
A single static discharge can damage your card and cause premature failure! Please follow all reasonable precautions to prevent a static discharge such as grounding yourself by touching any grounded surface prior to touching the card.
1. Do not install the card into the computer until the software has been
fully installed. 2. Turn OFF computer power AND unplug AC power from the
system. 3. Remove the computer cover. 4. Carefully install the card in an
available PCIe expansion slot (you may need to remove a
backplate first). 5. Inspect for proper fit of the card and install and
tighten the mounting bracket screw. Make
sure that the card mounting bracket is properly screwed into place and that
there is a positive chassis ground. 6. Four-port “DB” model cards use a header
to DB9M cable accessory that installs in an adjacent mounting bracket / slot
location. Install this and tighten screw.
Figure 2-1: Port Configuration Utility Screenshot .
7. Replace the computer cover and turn ON the computer. 8. Most computers
should auto-detect the card (depending on the operating system) and
automatically finish installing the drivers. 9. Run the Port Configuration
Utility program (setup.exe) to configure the protocol (RS-
232/422/485) for each COM port. 10. Run one of the provided sample programs
that was copied to the newly created card
directory (from the CD) to test and validate your installation.
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Chapter 3: Hardware Details
There only user-selectable options for this card are for applying a
termination load to the RS485 lines. Channel protocols are selected via
software.
Figure 3-1: Option Selection Map DB Models
DB9M connector “DB” models use an industry standard 9-pin Male D-Subminiature
connector with screw locks
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Figure 3-2: Option Selection Map RJ Models
RJ45 connector “RJ” models use an industry standard 8P8C modular jack.
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Factory Option Descriptions Fast RS-232 transceivers (-F)
The standard RS-232 transceivers used are capable of speeds up to 460.8kbps
which is adequate in many applications. For this factory option, the board is
populated with high-speed RS-232 transceivers enabling error-free
communications at up to 921.6kbps. Remote Wake-Up (-W) The “Remote Wake-Up”
factory option is for use in RS232 mode when your PC enters the L2 low-power
state. When the Ring Indicator is received on serial port COM A in the L2
power state, Wake-Up is asserted. Extended temperature (-T) This factory
option is for use in harsh environments and is populated with all-industrial
rated components, specified at a minimum temperature range of -40°C to +85°C.
RoHS compliance (-RoHS) For international customers and other special
requirements, this factory option is available in RoHS compliant versions.
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Chapter 4: Address Selection
The card uses one I/O address space PCI BAR[0]. COM A, COM B, COM C, COM D,
COM E, COM F, COM G and COM H each occupy eight consecutive register
locations.
The Vendor ID for all cards is 494F. The Device ID for the PCIe-COM-4SMDB card
is 10DAh. The Device ID for the PCIe-COM-4SMRJ card is 10DAh. The Device ID
for the PCIe-COM-4SDB card is 105Ch. The Device ID for the PCIe-COM-4SRJ card
is 105Ch. The Device ID for the PCIe-COM232-4DB card is 1099h. The Device ID
for the PCIe-COM232-4RJ card is 1099h. The Device ID for the PCIe-COM-2SMDB
card is 10D1h. The Device ID for the PCIe-COM-2SMRJ card is 10D1h. The Device
ID for the PCIe-COM-2SDB card is 1050h. The Device ID for the PCIe-COM-2SRJ
card is 1050h. The Device ID for the PCIe-COM232-2DB card is 1091h. The Device
ID for the PCIe-COM232-2RJ card is 1091h.
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Chapter 5: Programming
Sample Programs
There are sample programs with source-code provided with the card in a variety
of common languages. DOS samples are located in the DOS directory and Windows
samples are located in the WIN32 directory.
Windows COM Utility Program
WinRisc is a COM utility program provided on CD with the installation package
for this card that is very useful when working with any serial ports and
serial devices. If you haven’t used this program yet, do yourself a favor and
run this program to test your COM ports.
Windows Programming
The card installs into Windows as COM ports so standard API functions can be
used.
See the documentation for your chosen language for details. In DOS the process
is identical to programming 16550- compatible UARTs.
Baud Rate Generation The built-in Baud Rate Generator (BRG) allows a wide
range of input frequency and flexible Baud Rate generation. To obtain the
desired Baud Rate, the user can set the Sample Clock Register (SCR), Divisor
Latch Low Register (DLL), Divisor Latch High Register (DLH) and Clock Prescale
Registers (CPRM and CPRN). The Baud Rate is generated according to the
following equation:
The parameters in the equation above can be programmed by setting the “SCR”, “DLL”, “DLH”, “CPRM” and “CPRN” registers according to the table below.
Setting
Description
Divisor Prescaler
DLL + (256 DLH) 2M-1 (SampleClock + N)
SampleClock 16 – SCR , (SCR = 0h’ toCh’)
M
CPRM, (CPRM = 01h’ to02h’)
N
CPRN, (CPRN = 0h’ to7h’)
Table 5-1: Baud Rate Generator Setting
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To ensure the proper operation of the Baud Rate Generator, users should avoid
setting the value 0′ to Sample Clock, Divisor and Prescaler. The following table lists some of the commonly used Baud Rates and the register settings that generate a specific Baud Rate. The examples assume an Input Clock frequency of 14.7456 Mhz. The SCR register is set to0h’, and the
CPRM and CPRN registers are set to 1h’ and0h’ respectively. In these
examples, the Baud Rates can be generated by different combination of the DLH
and DLL register values.
Baud Rate DLH DLL 1,200 3h 00h 2,400 1h 80h 4,800 0h C0h 9,600 0h 60h 19,200
0h 30h 28,800 0h 20h 38,400 0h 18h 57,600 0h 10h
115,200 0h 08h 921,600 0h 01h Table 5-2: Sample Baud Rate Setting
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Chapter 6: Connector Pin Assignments
Input/Output Connections
The serial communications ports are interfaced at the card mounting bracket either via 4x DB9M connectors or 4x RJ45 connectors.
PIN
RS-232
1
DCD
2
RX
3
TX
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
RS-422 and 4-Wire RS-485
TXTX+ RX+ RXGND
–
2-Wire RS-485
TX+/RX+ TX-/RXGND –
Table 6-1: DB9 Male Connector Pin Assignments
Figure 6-1: DB9 Male Connector Pin Locations
PIN
RS-232
1
DSR
2
DCD
3
DTR
4
GND
5
RX
6
TX
7
CTS
8
RTS
RS-422 and 4-Wire RS-485
TXRXGND TX+ RX+
–
2-Wire RS-485
TX-/RXGND TX+/RX+ –
Table 6-2: RJ45 Connector Pin Assignments
Figure 6-2: RJ45 Connector Pin Locations
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RS-232 Signals
DCD RX TX DTR GND DSR RTS CTS RI
RS-232 Signal Descriptions
Data Carrier Detected Receive Data Transmit Data
Data Terminal Ready Signal Ground Data Set Ready
Request To Send Clear to Send Ring Indicator
RS-422 Signals (4-w 485)
TX+ TXRX+ RXGND
RS-422 Signal Descriptions
Transmit Data + Transmit Data Receive Data + Receive Data Signal Ground
RS-485 Signals (2-wire)
TX/RX + TX/RX –
GND
RS-485 Signal Descriptions
Transmit / Receive + Transmit / Receive –
Signal Ground
Table 6-3: COM signal names to corresponding signal descriptions
To ensure that there is minimum susceptibility to EMI and minimum radiation, it is important that the card mounting bracket be properly screwed into place and that there be a positive chassis ground. Also, proper EMI cabling techniques (cable connect to chassis ground at the aperture, shielded twisted- pair wiring, etc.) should be used for the input/output wiring.
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Chapter 7: Specifications
Communications Interface
· I/O connection:
DB9M or RJ45
· Serial ports:
4 (or 2)
RS-232/422/485
· Serial data rates: RS-232
460.8k (921.6k avail)
RS-422/485 3Mbps
· UART:
Quad type 16C950 with 128-byte transmit & receive FIFO,
16C550 compliant
· Character length: 5, 6, 7, 8, or 9 bits
· Parity:
Even, Odd, None, Space, Mark
· Stop interval:
1, 1.5, or 2 bits
· Flow Control:
RTS/CTS and/or DSR/DTR, Xon/Xoff
· ESD Protection: ±15kV on all signal pins
Environmental
· Operating temp.:
· Storage temp.: · Humidity: · Power required: · Size:
Commercial: 0°C to +70°C Industrial: -40°C to +85°C -65°C to +150°C 5% to 95%, non-condensing +3.3VDC @ 0.8W (typical) 4.722″ long x 3.375″ high (120 mm long x 85.725 mm high)
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Customer Comments
If you experience any problems with this manual or just want to give us some
feedback, please email us at: manuals@accesio.com. Please detail any errors
you find and include your mailing address so that we can send you any manual
updates.
10623 Roselle Street, San Diego CA 92121 Tel. (858)550-9559 FAX (858)550-7322 www.accesio.com
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Assured Systems
Assured Systems is a leading technology company with over 1,500 regular
clients in 80 countries, deploying over 85,000 systems to a diverse customer
base in 12 years of business. We offer high-quality and innovative rugged
computing, display, networking and data collection solutions to the embedded,
industrial, and digital-out-of-home market sectors.
US
sales@assured-systems.com
Sales: +1 347 719 4508 Support: +1 347 719 4508
1309 Coffeen Ave Ste 1200 Sheridan WY 82801 USA
EMEA
sales@assured-systems.com
Sales: +44 (0)1785 879 050 Support: +44 (0)1785 879 050
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VAT Number: 120 9546 28 Business Registration Number: 07699660
www.assured-systems.com | sales@assured-systems.com
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References
- Industrial Embedded Computers and Displays - Assured Systems
- Industrial Embedded Computers and Displays - Assured Systems
- Industrial Embedded Computers and Displays - Assured Systems