Flexible and Inexpensive!

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Product Description

The BBS-550 is the Sysop's Choice around the world! Why? It's a snap to set up and no matter what BBS software you've decided on, the BBS-550 is probably already compatible. Just ask another Sysop. Then check out the competition. You won't find a more flexible and inexpensive 8 port board for starting a BBS!

BBS-550 Features:

  • 8 ports with 16C550 UARTS
  • 4 ports can be configured as COM1:-COM4:
  • FULL modem handshaking support
  • As many as 64 ports per PC are possible!
  • Interrupts may be shared, separate, or both (shared interrupts may be "daisy-chained" so only one interrupt is used)
  • Flexible addressing and enhanced ISA interrupts
  • Optional RS-422 and RS-485 Adapters available
  • Works with all popular BBS software.
  • Certified to work with X00 and SIO
  • FCC Part 15 compliant


Technical Specifications

BBS-550 Non-Intelligent Multiport Serial Board

Dimensions 4.25" x 6.25"
Bus TypeISA
Card Slot16-bit
Card Style -size
I/O Addressing Modes8; 2 horizontal and 6 vertical modes
IRQ 's Supported9; IRQ 's 2,3,4,5,7,10,11,12,15
Data CablesB8TM Telekit: 8-6 foot RJ45 to DB-25M (standard)
Interface StandardStandard: EIA-232 (RS-232C)
Optional: RS-422 or RS-485
Number of I/O Ports 8
Data FormatAsynchronous, start + data + stop bits.
Data Rates110 bps to 115,200 bps (software selectable)
I/O Connector Configuration DTE (Data Terminal Equipment)
Processor TypeUniversal Asynchronous Receiver Transmitter
UART Part Number16C550 (proprietary to component mfgr.)
FIFO Depth16 bytes transmit, 16 bytes receive
HandshakeFull Modem Handshake Support
Device Driver Support WindowsNT, Windows95, FreeBSD, BSDI, Linux, DOS, OS/2 (SIO)
EnvironmentalOperating Temperature: 0-70 degrees Celsius
Operating Humidity: 0-95% relative humidity (non-condensing)
Power Requirements Powered through ISA bus: 5 VDC, 12 VDC, -12 VDC @ 5 Watts
Modem CompatibilityCompatible with all RS-232 type modems including ISDN