This manual covers the following B&B Electronics' model serial
cards:
RS-232 Serial Cards CE
232CC1A 232CC1B
232CC2A 232CC2B
Documentation Number 232CCxx4502
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 model
number of the 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
European Headquarters
B&B Electronics Ltd.
Westlink Commercial Park, Oranmore, Co. Galway, Ireland
Phone +353 91-792444 -- Fax +353 91-792445
© B&B Electronics -- Revised November 2002
Documentation Number 232CCxx4502
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
Chapter 1: Introduction and General Information
The B&B Electronics’ 232CC series RS-232 serial interface
cards are designed for the IBM PC, XT, AT and compatibles. Ports
are configured as a standard DTE device, and connections are
made on 9-pin D-style connectors.
The 232CC cards offer exceptional setup flexibility. The 232CC
series has the ability to use any I/O address and any hardware
interrupt. You can install as many serial ports as will physically fit in
a machine. To use one of the “non-standard” addresses or
interrupts, the serial software used must also offer that flexibility. If
you are writing your own application, be sure the communications
routines used support any address and IRQ. B&B Electronics’
SimpCom Communications Drivers support these features.
Features
Switch selectable addresses, from 0 to hex 3F8, including
COM1 – COM4
Jumper selectable interrupts: 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15
Enhanced 16 bit address decoding
Baud rates up to 230.4K baud with 2X clock option enabled
16550A UARTs on all ports
Supports all standard RS-232 lines: TD, RD, RTS, CTS, DSR, DCD,
DTR, and RI
Specifications
Bus: IBM PC ISA bus
Slot: Requires 1 full length slot for complete IRQ selectability. When
installed in a short slot, IRQ’s 10-15 will not be available.
Dimensions: 6.3 x 3.3 in (16.0 x 8.4cm)
I/O connection: 9-pin male, D-sub connectors
Baud rates: 230,400 baud max with 2x clock jumper enabled
Character length: 5, 6, 7, or 8 bits
Parity: Even, odd or none
Stop bits: 1, 1.5, or 2
Interrupt: IRQ 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, or 15
Address: Switch programmable, 0 to hex 3F8
Documentation Number 232CCxx4502
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
RS-232 Transceiver
TD and RD Device: DS232AS
Transmitter output voltage: 5.0 V minimum
Short circuit current: 30 mA typical
Input low level threshold voltage: 0.8 V minimum
Input high level threshold voltage: 2.4V maximum
Device will withstand 30 V
Handshake Line Device: SN75185
Transmitter output voltage: 10.0 V minimum
Short circuit current: 12 mA typical
Input low level threshold voltage: 0.65 V minimum
Input high level threshold voltage: 2.5V maximum
Device will withstand 30 V
Power Consumption (2-port model)
+5V, 115mA, 575mW
+12V, 50mA, 600mW
-12V, 72mA, 864mW
Total maximum power draw: 2.039 W
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Documentation Number 232CCxx4502
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 2: Quick Installation Guide
The following steps will help you install the Model 232CCXX Serial
Card. Please follow (step-by-step) the numbered instructions and
refer to any corresponding chapters for more details.
CAUTION: Electrostatic Sensitive Device.
Use ESD precautions for safe handling.
Before removing the card from the anti-static protective packaging:
•
Discharge any static electricity build-up 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.
1. Make sure you have an available ISA slot for installing your
B&B Electronics Serial Card. You may have to remove the
cover of your PC.
2. Determine what addresses and IRQ’s are free to use on your
PC by checking your operating system for unused addresses
and IRQ’s. Each port uses eight I/O address spaces starting at
the base address that you select. Each port I/O address and
interrupt request (IRQ) must be set as well. See “Checking
Device Manager for Available Address/IRQ’s” in Chapter 3 for
your operating system. Refer to Chapter 4 (Table 3) for
frequently unused I/O addresses and IRQ’s. Write down the
address and IRQ you select to use. Do not physically install the
ISA card at this point.
3. Add New Hardware – This consists of adding a port or ports to
your operating system. See “Adding Serial Ports” in Chapter 3
for specific instructions for your operating system.
Documentation Number 232CCxx4502
3
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
4. Assign Address and IRQ – The address and IRQ are set in the
operating system that you are using. This is the final step of
adding new hardware. See Chapter 4 for more details.
5. Set up the address (with dipswitches) and IRQ (jumpers) on the
serial card to reflect unused addresses and IRQ’s that you want
to use. The address dipswitch setting consists of configuring
seven dipswitches that reflect a particular hex address. The IRQ
is set via a little black jumper. See Chapter 4 for an explanation
of address and IRQ settings as well as details on configuring
the card itself.
6. Set serial card hardware jumpers for the communication
parameters that you desire. See Chapter 5 for an explanation of
serial parameters and details on how to configure them.
7. Shut down the PC before installing the serial card.
8. Install ISA serial card into an available ISA slot in the PC.
9. Physical Hook-up and Troubleshooting – pinout, cable data, and
troubleshooting information. See Chapter 6 for more details.
4
Documentation Number 232CCxx4502
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 3: Windows Installation
Checking Device Manager for Available
Address/IRQ’s (Windows 95/98)
Click on Start / Settings / Control Panel and double-click on System
Properties.
Left-click on Device Manager.
Double-click on Computer.
Documentation Number 232CCxx4502
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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
Left-click on Interrupt Request.
Find a free IRQ in the displayed list. Any number that is seen on
the left hand side of this screen is an IRQ that is currently being
used. The object is to find a number of IRQ(s) that are not listed
and set your port(s) using those IRQ’s.
Left-click on Input/Output (I/O).
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Documentation Number 232CCxx4502
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
Scroll through the list, check 03F8H, 02F8H, 03E8H, 02E8H. If
one of these is available, use it. If not, check alternates.
Find a free address in the list. Most desktop PC’s have a COM1
and possibly a COM2 already on their system which will be seen in
the list. You might have to start at COM3 or COM4 to begin
addressing the ISA card. If these addresses are used you may have
to resort to the Frequently Unused Port Addresses (found in
Chapter 4, Table 3) of this manual. Write these open addresses and
IRQ’s down for later reference.
Documentation Number 232CCxx4502
7
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
Adding Serial Port(s) in Windows 95/98
Go to Start Menu / Settings / Control Panel.
Run the Windows Add New Hardware utility found in the control
panel. Click Next.
8
Documentation Number 232CCxx4502
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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