B&B Electronics 232CC1B, 232CC2B, 232CC2A Appendix a Hardware I/O Map, Map of XT Class Machines

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Appendix A: Hardware I/O Map

 

I/O Map of XT Class Machines

 

 

Hex Address

Address Function in XT Class Machines

000-00F

DMA controller (8237A)

020-021

interrupt controller (8259A)

040-043

timer (8253)

060-063

PPI(8255A)

080-083

DMA page register (74LS612)

0A0-0AF

NMI - non maskable interrupt

200-20F

game port joystick controller

210-217

expansion unit

2E8-2EF

COM4 serial port

2F8-2FF

COM2 serial port

300-31F

prototype card

320-32F

hard disk

378-37F

parallel print

380-38F

SDLC

3B0-3BF

MDA - monochrome adapter and printer

3D0-3D7

CGA - color graphics adapter

3E8-3EF

COM3 serial port

3F0-3F7

floppy diskette controller

3F8-3FF

COM1 serial port

Documentation Number 232CCxx4502

Appendix A: Hardware I/O

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

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Contents RS-232 Serial Cards CE Table of Contents Specifications FeaturesIntroduction 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 DirectionInternational/USA Office TroubleshootingEuropean 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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