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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
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