NCR 7458 - Manual (Page 68)

3-44 Chapter 3: Hardware Service
4-Port PCI RS-232 Board (3030-K169)
The 4-Port RS-232 Board provides four additional RS-232 ports. The
board requires one unique IRQ and four eight-byte I/O addresses
which are automatically assigned by the PCI BIOS. It can operate in a
Windows 95/98/2000 or Windows NT environment. The board uses a
4-Port RS-232 cable to connect to peripheral devices. See the 4-Port PCI
RS-232 Board (3030-K169) for installation information.
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