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B&B Electronics RS-232 User's Manual
Single and Dual Port PCI Bus CE
RS-232 Serial Card
232PCI1A 232PCI1B
232PCI2A 232PCI2B
Documentation Number 232PCIXX4502
Each of these models is an RS-232 serial card and uses the same printed circuit
board. The “1” and “2” suffix designates the number of ports on the card. The “A”
models are equipped with 16550A UARTs with 16 byte transmit and receive buffers.
The “B” models come with 16850 UARTs with 128 byte transmit and receive buffers.
The model number of each card is printed on a sticker on the board.
This product designed and manufactured in Ottawa, Illinois USA
of domestic and imported parts by
International Headquarters
B&B Electronics Mfg. Co. Inc.
707 Dayton Road -- P.O. Box 1040 -- Ottawa, IL 61350 USA
Phone 815-433-5100 -- General Fax 815-433-5105
Home Page: www.bb-elec.com
Orders e-mail: orders@bb-elec.com -- Fax 815-433-5109
Technical Support e-mail: support@bb.elec.com -- Fax 815-433-5104
European Headquarters
B&B Electronics Ltd.
Westlink Commercial Park, Oranmore, Co. Galway, Ireland
Phone +353 91-792444 -- Fax +353 91-792445
Home Page: www.bb-europe.com
Orders e-mail: orders@bb-europe.com
Technical Support e-mail: support@bb-europe.com
 2000 B&B Electronics -- Revised November 2002
Documentation Number 232PCIXX4502 Manual
Cover Page
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445

2000 B&B Electronics . No part of this publication may be reproduced or transmitted in any form or by any
means, electronic or mechanical, including photography, recording, or any information storage and retrieval
system without written consent. Information in this manual is subject to change without notice, and does not
represent a commitment on the part of B&B Electronics.
B&B Electronics shall not be liable for incidental or consequential damages resulting from the furnishing,
performance, or use of this manual.
All brand names used in this manual are the registered trademarks of their respective owners. The use of
trademarks or other designations in this publication is for reference purposes only and does not constitute an
endorsement by the trademark holder.
TABLE OF CONTENTS
CHAPTER 1: GENERAL INFORMATION...................................... 1
INTRODUCTION ........................................................................................ 1
DESCRIPTION ........................................................................................... 1
FEATURES ................................................................................................ 1
SPECIFICATIONS ...................................................................................... 2
CHAPTER 2: SETUP.......................................................................... 4
INSPECTION ............................................................................................. 4
4X BAUD RATE OPTION .......................................................................... 6
INSTALLING THE CARD ............................................................................ 6
PINOUTS .................................................................................................. 7
CHAPTER 3: WINDOWS INSTALLATION..................................... 8
WINDOWS 95 AND WINDOWS 98............................................................. 8
CONTINUED NEXT PAGE WINDOWS 2000 PROFESSIONAL ....................... 16
WINDOWS 2000 PROFESSIONAL ............................................................ 17
WINDOWS NT 4.0.................................................................................. 22
APPENDIX A: 232PCIXX I/O SCHEMATIC ...............................A-1
APPENDIX B: RS-232 PINOUTS .................................................. B-1
APPENDIX C: TROUBLESHOOTING WITH COMTEST .........C-1
APPENDIX D: RENAMING COM PORTS - WIN 95/98/ME ...D-1
RENAMING PCI COM PORTS USING THE PNP COM RENAME UTILITY ..D-1
APPENDIX E: DECLARATION OF CONFORMITY.................. E-1
Documentation Number 232PCIXX4502 Manual
Table of Contents
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
i
Chapter 1: GENERAL INFORMATION
Introduction
The B&B Electronics 232PCI1A, 232PCI1B, 232PCI2A and
232PCI2B serial interface cards are designed for IBM compatibles
with a PCI Bus. The PCI design is Plug and Play compatible which
allows the driver and Operating System to select the IRQ and
addresses used by the card.
If you are writing your own applications, be sure the communications
routine used supports Windows communication drivers and a wide
range of COM ports.
Description
The 232PCI1x is a one port card and the 232PCI2x is a two port
card. All versions offer high speed RS-232 communications with the
4X clock option enabled. Buffered, high speed UARTs (16550A or
16850) make it ideal for high speed (modem) and multitasking
applications.
Features
•
IBM compatible, PCI Version 2.1 bus
•
Supports baud rates to 460.8K baud with 4X clock option
enabled
•
One or two port high speed RS-232 serial card
•
Supports all standard RS-232 lines: TD, RD, RTS, CTS, DTR,
DSR, DCD, RI and Signal Ground.
•
Drivers for Windows 95, 98, 2000, and NT 4.0
•
Available models:
Model 232PCI1A – 1 Port with 16 byte FIFO 16550A UARTs
Model 232PCI1B – 1 Port with 128 byte FIFO 16850 UARTs
Model 232PCI2A – 2 Ports with 16 byte FIFO 16550A UARTs
Model 232PCI2B – 2 Ports with 128 byte FIFO 16850 UARTs
Documentation Number 232PCIXX4502 Manual
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
1
Specifications
Bus:
PCI bus version 2.1
Slot:
Requires one PCI slot
Dimensions:
6.2 x 4.2 in (15.8 x10.7 cm)
I/O Connections:
9 pin male D-sub (DB9M) connectors
OS Supported:
Windows 95, 98, 2000, and NT 4.0
Baud rates:
460.8K baud maximum
UARTs:
16550A 16 byte TX and RX buffers (232PCI1/2A), or
16850 128 byte TX and RX buffers (232PCI1/2B)
Character length: 5, 6, 7, or 8 bits
Parity:
Even, odd or none
Stop bits:
1, 1.5, or 2
RS-232 Control Lines Drivers/Receivers:
Device:
75185 Transceiver
High level output voltage:
6.0 V minimum
Low level output voltage:
−6.0 V minimum
Output current limited to:
±10 mA
Input high threshold voltage:
1.5 V maximum
Input low threshold voltage:
0.75 V minimum
Device will withstand:
±30 V
RS-232 Data Lines Drivers/Receivers:
Device:
SP211H Transceiver
High level output voltage:
5.0 V minimum
Low level output voltage:
−5.0 V minimum
Output current limited to:
±25 mA
Input high threshold voltage:
1.7 V maximum
Input low threshold voltage:
0.8 V minimum
Device will withstand:
±15 V
Max Power Consumption:
All ports loaded
232PCI1x
Voltage
(V)
+5
+12
-12
Total
2
Current
(mA)
235.0
31.0
31.0
297.0
232PCI2x
Power
(W)
1.175
0.372
0.372
1.919
Current
(mA)
286.0
62.0
62.0
410.0
Power
(W)
1.430
0.744
0.744
2.918
Documentation Number 232PCIXX4502 Manual
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Accessories:
Software:
Driver Disk (3.5) for Windows 95/98/2000/NT 4.0
PCI/USB COM Port Utility Disk (3.5)
Manual:
Instruction Manual (this booklet)
Documentation Number 232PCIXX4502 Manual
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B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
3
Chapter 2: SETUP
Inspection
Your 232PCIxx serial card was tested for proper operation before
shipment. It should be in perfect mechanical and electrical condition
upon receipt.
The data clock speed is set by one jumper to x1 (normal) operation
or to x4 operation. Dual port cards share the single master clock.
CAUTION:
ELECTROSTATIC SENSITIVE DEVICE
Use ESD precautions for safe handling.
Before removing the card from the anti-static protective packaging.
•
Discharge any static electricity buildup on your body by touching
a large grounded metal surface or the metal chassis on
equipment connected to earth ground by a 3-wire power cord.
•
Avoid touching the gold connectors or other parts on the card
except as necessary. After setting the jumper, ground yourself
to the computer chassis before and while inserting the card.
•
Remove AC power from the computer and unplug the power
cord before inserting the card.
•
Retain the ESD bag for handling the card.
Save the packaging for storage or shipping.
4
Documentation Number 232PCIXX4502 Manual
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Figure 1. Silk Screen Plot of 232PCIxx PCB
Documentation Number 232PCIXX4502 Manual
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5
4X Baud Rate Option
Baud rates higher than 115,200 are possible with the 232PCIxx
card. Jumper JP1 controls the clock frequency supplied to the
UARTs. By moving this jumper to the “*4” (left) position, the clock
frequency is increased from 1.8432 to 7.3728 MHz. This multiplies
all UART baud rates by 4 times. For example, if the software is set
for 57.6K baud, the actual baud rate will be increased by a factor of
four to 230.4K baud. In many systems, these higher baud rates can
improve throughput significantly. However, remember that baud
rates and actual throughput are only proportional if the system can
keep up with the communications, otherwise increasing the baud
rate effectively only increases the idle time between characters.
Installing the Card
1. Ground yourself by touching the metal chassis of the computer
to discharge any static electricity.
2. Turn the power to your computer off and unplug the power cord.
3. Remove the cover of the computer.
4. Locate a free PCI expansion slot.
5. Remove the expansion slot cover. Save the screw for
installation of the 232PCIxx card.
6. Install the card into the unused slot. Be certain that the card is
inserted completely (fully seated) in the slot.
7. Secure the card with the mounting screw from step 5.
6. Replace the cover, plug in the power cord, and power up the
system.
6
Documentation Number 232PCIXX4502 Manual
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Table 1: RS-232 Pinouts
Name
Description
Direction
DCD
RD
TD
DTR
GND
DSR
RTS
CTS
RI
Data Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Request to Send
Clear to Send
Ring Indicator
Input
Input
Output
Output
----Input
Output
Input
Input
DB9M
Pin
1
2
3
4
5
6
7
8
9
Pinouts
The male DB-9 male connectors on the 232PCIxx cards are
configured as standard DTE RS-232 serial ports. Table 1 lists signal
names and pin numbers.
232PCIXX4502 Manual
Chapter 2
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7
Chapter 3: WINDOWS INSTALLATION
Windows 95 and Windows 98
Any prior installation using previous B&B serial drivers must be
removed before installing the new drivers. (Refer to page 16.)
Windows 98 screens are shown for this section. Windows 95 is a bit
different with fewer steps and the screen names and text shown
differs. Windows 95 differences are noted (W95:…)
1. Configure the card for x1 or x4 Clock Speed.
2. Install the card in the slot, start the computer.
3. Windows will detect the PCI card, start the Add New Hardware
Wizard, and begin driver installation. When installation is
complete, Windows will set the hardware addressing & interrupt
using the drivers and the Plug and Play function of the Operating
System.
4. The driver installation proceeds in two parts, the first part installs
the driver for the PCI Serial card, the second part installs the
serial driver for the Com Port A & B (Port A=Port 1, Port B=2).
NOTE: The single or dual-port RS-232 PCI Serial Adapter cards will
be identified as the 3PCISD1 (232PCI1x) or 3PCISD2 (232PCI2x) by
the drivers. They are functionally the same to the Operating
System, except for the number of ports supported.
continued next page
8
Documentation Number 232PCIXX4502 Manual
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B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
5. After new hardware is detected, this screen will appear.
(W95: This screen is named Update Device Driver Wizard).
6. Click Next to continue. (W95: Insert the Driver Disk in Drive,
then click Next - skip to step 9)
continued next page
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7. Click Next.
8. Select Floppy disk drives, Specify A:\
9. Insert the driver disk, then Click Next.
10
Documentation Number 232PCIXX4502 Manual
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Windows will find PCI Serial Adapter (3PCISD1) for the 232PCI1x or
2-Port PCI Serial Adapter (3PCISD2) for the 232PCI2x and the
driver inf file. (W95: Driver name not shown - skip to step 11)
10. Click Next.
11. Click Finish to begin the second part of the driver installation
which installs the Com port driver for Port A & B.
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12. Click Next. (W95: Skip to step 15)
13. Click Next to continue. Re-insert the driver disk if needed.
Windows will find the Communications Port and inf file.
12
Documentation Number 232PCIXX4502 Manual
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14. Click Next. (W95: Driver name not shown)
15. Click Finish to complete Com driver installation.
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The computer will finish Com driver installation for Port A, then
search, find and install the driver for Port B without requiring any
more user input.
16. Wait for the process to complete.
17. You can now remove the driver disk, close the Windows, and
check the new ports with your software.
Then select the Device Manager Tab.
Click the B&B Electronics Serial Adapters device to view the
adapter. If you want other details, Select Properties.
Click Ports (COM & LPT) to view the COM numbers assigned by
Windows to the card.
The single port card will have 3PCISD1 Port A (COMx) and the dual
port card will have 3PCISD2 Port A (COMx) and Port B (COMx). The
COM port numbers will normally be COM5, COM6, if available.
14
Documentation Number 232PCIXX4502 Manual
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
NOTE: The 232PCI1x will be identified as 1-Port PCI Serial Adapter
(3PCISD1). The 232PCI2x will be identified as the 2-Port PCI Serial
Adapter (3PCISD2). The cards and drivers are functionally the same
to the Operating System.
18. You can now remove the driver disk, close the Windows, and
check the new ports with your software.
If your software requires accessing a COM port below COM5, and
you have unused COM numbers not occupied by a FAX/Modem or
other device, you can re-assign the PCI card COM numbers using
our B&B PnP COM Rename utility. Refer to Appendix D.
To verify the installation, open My Computer, Control Panel,
System (or Start, Setting, Control Panel, System).
Removal of Card And Drivers
If you need to remove the card from your system or remove the
current driver before installing a possible future driver upgrade:
1. Open My Computer, Control Panel, System (or Start, Setting,
Control Panel, System).
2. Select the Device Manager Tab. (See figure on previous page.)
3. Click B&B Electronics Serial Adapters, then Select the 2-Port
PCI Serial Adapter (3PCISD2) or 1-Port PCI Serial Adapter
(3PCISD1).
4. Click the Remove button.
5. Close the Windows, and Open My Computer, Drive C:
6. Open the Windows directory on your Hard Drive, then Open the
Inf folder, then Other. (If the Inf folder is not shown, it is hidden;
Select View, Folder Options, Files and Folders, Show all files.
Win95: Select View, Options, View, Show all files.)
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15
7. Remove the B&B INF files. (*BBMSER.INF &
*BBMSER95.INF) Close the Window.
8. Shut down the computer, then remove the card.
continued next page
16
Documentation Number 232PCIXX4502 Manual
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Windows 2000 Professional
This section covers device driver installation for
Windows 2000 Professional.
1. Set the Clock speed jumper as needed to x1 or x4.
2. Install the card in the slot, start the computer as an Administrator
or ask your system administrator to install the software.
3. Windows will detect the PCI card and start Found New
Hardware Wizard, to begin driver installation. When installation
is complete, Windows will set the hardware addressing &
interrupt using the drivers and the Plug and Play function of the
Operating System.
4. After the driver for the PCI Serial Card installs, the serial driver
for the Com port will be installed once for each port on the card.
5. Click Next to continue.
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6. Select Search, Click Next.
7. Insert the driver disk in the Floppy disk drive A: Click Next..
18
Documentation Number 232PCIXX4502 Manual
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8. Click Next.
9. Click Finish to complete the Install.
The computer will complete the installation of the driver for the card,
then search for the Com driver for Port A, then for Port B (if present)
without requiring any more user input.
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19
10. Wait for the process to complete.
11. Open My Computer, Control Panel, System, then select the
Hardware tab on System Properties.
12. Select Device Manager, then view the hardware list.
Under B&B Electronics Serial Adapters, the PCI Serial Adapter
(3PCISD1) or 2-Port PCI Adapter (3PCISD2) is installed. This is the
single port 232PCI1 or dual port 232PCI2 card.
Under Ports, COM3 was assigned to Port A , and COM4 was
assigned to Port B. (Port 1 is Port A, Port 2 is Port B)
NOTE: The 232PCI1x will be identified as PCI Serial Adapter
(3PCISD1). The 232PCI2x will be identified as 2-Port PCI Serial
Adapter (3PCISD2). The cards and drivers are functionally the same
to the Operating System.
13. Remove the driver disk and check the ports with your software.
20
Documentation Number 232PCIXX4502 Manual
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B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Removal of Card & Drivers
If you need to remove the card from your system or remove the
current driver before installing a possible future driver upgrade:
1. Click on 3PCISD1 Port A under Ports (COM & LPT) and select
Uninstall (right click). Repeat for Port B. (The 232PCI1x
identifies as 3PCISD1, the 232PCI2x identifies as 3PCISD2.)
2. Next Click on PCI Serial Adapter (3PCISD1 or 3PCISD2) under
B&B Electronics. Select Uninstall.
3. Remove the two sets of driver files from the Windows INF
directory. (These are named by the OS in the sequence of
installation. On a clean system they are: Oem0.inf & Oem0.PNF
and Oem1.inf & Oem1.PNF. The .inf versions should be verified
by opening it with Notepad, then checking that it is a B&B
Electronics file. The PNF version is a compiled copy of the
same information.)
You can use the Find, File or Folder function to search for the
text B&B within the files.
You may need to set your Views (under My Computer) to show
all files and folders if the INF directory and .inf files are not
visible.
4. Shut down the system and remove the card.
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21
Windows NT 4.0
1. Set the x1 or x4 Clock speed jumper as needed.
2. Install the card in the slot, start the computer, and log on to
Windows NT 4.0 as an Administrator or ask your system
administrator to install the software.
3. Open the Control Panel. (Select Start, Settings.)
4. Select Add/Remove Programs.
continued next page
22
Documentation Number 232PCIXX4502 Manual
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5. Click the Install button, then click Next.
continued next page
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6. Insert the driver disk into drive A:.
7. Enter A:\WinNT40\Setup.exe in the Command line for
installation program window. (as above).
8. Click Finish to start the Setup program.
9. Click Next. Follow the instructions until completed.
10. This driver does not require re-booting to complete installation.
24
Documentation Number 232PCIXX4502 Manual
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11. Open the Control Panel, select Ports.
12. Verify 1 or 2 new COM Ports. (shown here as COM5: & COM6:)
If you have 1 or 2 new COM ports, the installation is complete.
Select the port, select Settings, Advanced. You should obtain the
message, "There are no user configurable Advanced I/O parameters
for this COM port."
Check the ports with your software or with a Loopback test.
NOTE: In the above example, a serial mouse is connected to the
port which would usually be COM1. NT does not show it. COM2 is
the second built-in serial port.
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25
You can check details of the serial card setup using Windows NT
Diagnostics, found under Administrative Tools. This can show the
Resources used such as addresses and IRQ.
Windows Diagnostics will not allow changing anything.
The above shows 2 ports using one PCI card interrupt.
continued next page
26
Documentation Number 232PCIXX4502 Manual
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The screen below shows the address range for the each serial port
on the B&B Electronics 2-port Serial Card.
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Documentation Number 232PCIXX4502 Manual
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
27
Removal of Card and Driver
If you need to remove the card from your system or remove the
current driver before installing a possible future driver upgrade:
1. Open the Windows NT subdirectory.
2. Open System32.
3. Open Drivers.
4. Find the "Bbserial.Sys" file and delete it.
5. Shut down the system.
6. Remove the 1 or 2-Port PCI Serial Adapter card.
28
Documentation Number 232PCIXX4502 Manual
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
CHAPTER 4: TROUBLESHOOTING
If you have any trouble starting your system after installing the card,
the card may not be properly seated in the slot. Remove and reinsert it or try a different slot.
If you are unable to communicate with the card using your software
and hardware devices:
1.
Check your pinouts. Computer RS-232 ports are always
configured as DTE (Data Terminal Equipment) devices. Some
devices (such as printers, video recorders/editors, cameras)
are also configured as DTE. When two similar DTE devices
are interconnected, a "NULL MODEM" cable is needed (refer
to Appendix B, Table 2, for cabling). A "serial printer cable" is
usually wired as a null modem cable.
2.
Some RS-232 connections use only Receive and Transmit
(plus signal common/ground). Sometimes the device "loops
back" the CTS/RTS line pair and the DTR/DSR line pair, but
other times, the loopback must be done within your connection
cable/connector. Refer to the hardware manual for the device
connected.
3.
Use the COMTest program provided on the PCI/USB COM
Port Utility Disk with a loop back to check the card. A loopback
connection for RS-232 connects the Transmit output to the
Receive input (pins #2 & #3 on the DB9M connector).
4.
Try another software package for troubleshooting.
5.
Check our website for available FAQ's or troubleshooting hints.
6.
Call B&B Electronics Technical Support for troubleshooting
assistance.
USA Office
Technicians are available at (815) 433-5100 to answer your
questions from 8 AM - 5 PM weekdays (Central Time).
European Office
Technicians are available at +353 91-792444 to answer your
questions from 8:30 AM – 5 PM weekdays (GMT Time).
Documentation Number 232PCIXX4502 Manual
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
29
Appendix A: 232PCIXX I/O SCHEMATIC
Port 1: I/O Schematic
Documentation Number 232PCIXX4502 Manual
Appendix A
A -1
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Appendix B: RS-232 Pinouts
Table 1: RS-232 Pinouts (DTE)
Name
Description
Direction
DCD
RD
TD
DTR
GND
DSR
RTS
CTS
RI
Data Carrier Detect
Receive Data
Transmit Data
Data Terminal Ready
Signal Ground
Data Set Ready
Request to Send
Clear to Send
Ring Indicator
Input
Input
Output
Output
----Input
Output
Input
Input
DB9M
Pin
1
2
3
4
5
6
7
8
9
Table 2: Reference Cabling Table
DB9 to DB25
Name
DCD
RD
TD
DTR
GND
DSR
RTS
CTS
RI
DB9
Pin
1
2
3
4
5
6
7
8
9
To
DB25
8
3
2
20
7
6
4
5
22
DB9 to Null Modem Cabling
DB9
Pin
1
2
3
4
5
6
7
8
9
DB9 Null DB25 Null
*
3
2
6
5
4
8
7
-
*
2
3
6
7
20
5
4
-
NOTE: In null cables, the DCD connection is usually connected to
DSR at each end.
2 Channel RS-232 Handshaking loopback for Tx & Rx: Connect
DB9 pins #7 & #8 together, and pins #4 & #6 & #1 together.
Documentation Number 232PCIXX4502 Manual
Appendix B
B -1
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Appendix C: TROUBLESHOOTING WITH COMTest
Included on the PCI/USB COM Port Utility Disk is a test program
called COMTest. It can be installed on your “Programs” menu for
use by inserting the disk and running Setup.
COMTest is a simple 32-bit Windows (Windows 95, 98, or NT)
COM port Test program. It is a simple tool that can be used to
troubleshoot RS-232, RS-422, or RS-485 serial communications. It
allows multiple ports, at any address and IRQ, to be opened at any
given time. ComTest is available on B&B Electronics Mfg. Co.
websites: www.bb-elec.com or www.bb-europe.com.
Documentation Number 232PCIXX4502 Manual
Appendix C
C-1
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Appendix D: Renaming COM Ports - Win 95/98/ME
Renaming PCI COM Ports Using the PnP COM Rename Utility
CAUTION: You must be using Windows 95/98 or ME. This utility is
not designed for NT or other Windows versions.
This program edits the registry directly, it will only change entries
related to B&B PCI or USB Serial Ports. Improper use of this
program can cause conflicts with other COM Ports installed on your
computer.
Renaming COM ports will only affect software that accesses COM
ports through Windows, not software that accesses ports from DOS
or at the hardware level.
This program should only be used after all serial ports have been
installed.
Windows 95/98 and ME automatically assigns COM port
numbers starting at COM5 when the port is not at the standard base
addresses for COM1 to COM4.
If your software refuses to access COM ports above COM4, and
you have unused COM numbers that you want to be able use with
your B&B PCI Serial Card, this utility can be used to rename some
or all of the ports to the unused COM numbers.
First, check the ports list shown in the Device Manager, then
check any Modem or FAX device to make sure that the port number
isn't being used for a FAX/Modem or Network Redirector.
If you have built-in ports you want to disable from the BIOS in
order to use your PCI card at that COM number, first remove the
port with the Device Manager. Then re-boot to the BIOS, disable the
port with hardware settings, Exit with a "Save Settings", then re-start
Windows Next, verify the port number is not present. Then use the
Rename utility to rename the PCI card ports as needed.
To Remove a Port: Choose Settings, Control Panel, System,
Device Manager, then select the port to highlight it. Click Remove
below the window. To remove all B&B PCI ports, select the B&B
Serial Adapter. This clears registry entries for the card and ports.
Documentation Number 232PCIXX4502 Manual
Appendix D
D-1
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Install the PCI/USB COM Port Utilities
(1) To use the PnP COM Rename utility, insert the PCI/USB COM
Port Utility Disk and run Setup.exe. This will install COMTest
and PnP COM Rename under Programs, B&B Electronics.
(2) The Rename utility will not be installed if you are running
Windows 2000 or NT.
Using PnP COM Rename
(1) Shut down all programs that are accessing any Com ports.
(2) Start the PnP COM Rename Utility from the Programs menu
under B&B Electronics.
(3) Read the Cautionary Warnings, it is possible to rename a PCI or
USB serial port to a number already in use which will cause
problems. If any problems occur after renaming, you may need
to re-start the system and rerun the Rename utility to correct the
situation or remove the serial card in the Device Manager. Then
Refresh the Device Manager to detect the card and re-install the
drivers. Determine which renamed COM port caused the
problem, and do not use that name for a renamed port.
(4) Accept the conditions of use by clicking Yes or click No to exit.
(5) Select the currently named COM port number you want to
change in the left window, then the new number in the right
window. Then click Finish. Repeat for other ports as needed.
D-2
Appendix D
Documentation Number 232PCIXX4502 Manual
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
(6) If the PCI card was previously installed and not removed in the
Device Manager, you may find several B&B COM ports with the
same number. The last instance of the same number is usually
the most recent installation. Only the active ports can be
renamed with the program to show the new name under the
Device Manager. Inactive port numbers will not show any
change after renaming. Ideally, unused entries should be
removed by using RegEdit, then having the system re-install the
drivers to make the entries. This will result in a single entry for
each port on the card, and only that entry will need to be
changed.
(7) After all B&B PCI or USB COM ports have been renumbered as
needed, click Close to exit.
If you need to install another serial device after using renaming with
this utility, you must:
(1) Name all COM Ports back to original settings using this
program.
(2) Install the new device according to manufacturer directions.
(3) Use this utility to rename the B&B COM Ports again as needed.
Documentation Number 232PCIXX4502 Manual
Appendix D
D-1
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Appendix E: Declaration of Conformity
DECLARATION OF CONFORMITY
Manufacturer’s Name:
Manufacturer’s Address:
B&B Electronics Manufacturing Company
P.O. Box 1040
707 Dayton Road
Ottawa, IL 61350 USA
Model Numbers:
232PCI1A/B, 232PCI2A/B
Description:
Single/Dual Port RS-232 PCI Serial Card
Type:
Light industrial ITE equipment
Application of Council Directive: 89/336/EEC
Standards:
EN 50082-1
EN 61000 (-4-2, -4-3, -4-4, -4-5, -4-6)
William H. Franklin III, Director of Engineering
Documentation Number 232PCIXX4502 Manual
Appendix E
E-1
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
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