B&B Electronics 232CC1B, 232CC2B, 232CC2A, 232CC1A manual Interrupt Jumper Setup

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Table 3. Frequently Unused Port Addresses

Base

Binary

Switch

I/O Space

Hex

Equivalent

Settings

Description

Address

 

MSB LSB

 

 

 

7654321

 

200

1000000000

1000000

game port

208

1000001000

1000001

game port

300

1100000000

1100000

prototype

308

1100001000

1100001

prototype

310

1100010000

1100010

prototype

318

1100011000

1100011

prototype

380

1110000000

1110000

SDLC

388

1110001000

1110001

SDLC

3A0

1110100000

1110100

bisync com

3A8

1110101000

1110101

bisync com

Interrupt Jumper Setup

The IRQ is a hardware Interrupt Request line in an ISA Bus expansion slot on a PC or AT compatible computer. The 8 bit PC ISA slot has 8 interrupts, the 16 bit slot has another 7 since one of the first 8 is used to link in the remaining 8. The IRQ is used by devices to request immediate service by the main microprocessor. When the IRQ line is set, the microprocessor stops whatever it’s doing, saves status, checks which line was set, then jumps to code to handle the interrupt. The processor then clears the interrupt and returns to what it was doing before. IRQ lines are set by the internal timer, keyboard, hard drive controller, PCI, USB controller, sound card, serial ports, printer and more.

The 232CC cards allow the use of interrupts (IRQ) 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, and 15. Table 4 shows the standard serial port IRQ settings. NOTE: If two ports use the same IRQ setting, both ports cannot use the serial port at once. Only one port at a time may communicate.

Table 4. Standard IRQ Settings

COM1

IRQ4

COM2

IRQ3

COM3

IRQ4

COM4

IRQ3

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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

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Contents RS-232 Serial Cards CE Table of Contents Features SpecificationsIntroduction and General Information Power Consumption 2-port model RS-232 TransceiverQuick Installation Guide Use ESD precautions for safe handlingDocumentation Number 232CCxx4502 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Adding Serial Ports in Windows 95/98 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Changing COM Port Resources in Windows 95/98 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Adding Serial Ports in Windows NT Checking Windows 2000 for Available Address/IRQ’s Click on Hardware Click on Device Manager Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Adding Serial Ports in Windows Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Documentation Number 232CCxx4502 Address and IRQ Setting Address Switch Setup Silk Screen Plot of 232CC PCB Address Switches Switch Position Bus Connection Decimal WeightHex Weight 7654321Interrupt Jumper Setup Communication Jumper Settings Use ESD precautions for safe handling High Speed ModePhysical Hook-up and Troubleshooting PinoutsCommunication Cable Data Pin Name Description DirectionTroubleshooting International/USA OfficeEuropean Office Appendix a Hardware I/O Map Map of XT Class MachinesMap of AT Class Machines Appendix B Declaration of Conformity Statement Declaration of Conformity
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232CC2A, 232CC1B, 232CC2B, 232CC1A specifications

B&B Electronics is renowned for its reliable and high-quality connectivity solutions, particularly in the realm of serial communication. Among its distinguished offerings are the 232CC2B, 232CC2A, 232CC1B, and 232CC1A devices. Each of these products serves distinct yet essential roles in converting RS-232 serial communication to RS-485 or RS-422 standards, making them invaluable in various industrial and commercial applications.

The 232CC2B and 232CC2A are both robust models designed for half-duplex and full-duplex communication, respectively. The 232CC2B offers superior protection with built-in surge suppression, ensuring that the data remains intact even in electrically noisy environments. This model supports up to 1 mile of data transmission, making it ideal for applications in large industrial settings. The 232CC2A, on the other hand, enables full-duplex communication, providing a continuous data stream that increases efficiency and reliability for intensive data applications.

In contrast, the 232CC1B and 232CC1A are more compact, low-cost alternatives tailored for simpler applications that require fewer features. The 232CC1B supports half-duplex communication, suitable for applications where data traffic is moderate. Its small footprint makes it ideal for projects where space is at a premium. Meanwhile, the 232CC1A is designed for full-duplex communication and maintains a reliable data connection while minimizing latency, which is essential for real-time data processing.

All four models utilize advanced isolation techniques to protect users and connected devices from electrical interference and potential damage. These devices are also equipped with LED indicators to provide real-time status updates of data transmission, allowing ease of monitoring and troubleshooting.

In summary, B&B Electronics’ 232CC2B, 232CC2A, 232CC1B, and 232CC1A products represent a comprehensive range of solutions for serial communication conversion. Their varying features and capabilities cater to diverse industrial needs, ensuring reliable communication across a multitude of applications. Whether for complex industrial automation setups or simple data logging tasks, these devices stand as a testament to B&B Electronics’ commitment to quality and performance in the field of connectivity solutions.
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