Flow Control - Black Box IC128C-R3 Manual

PC PLUS ADAPTER DUAL SERIAL PCI
5.1.4 F C
LOW ONTROL
"Flow Control" refers to the type of signaling that
is used between the modem and the Adapter.
If you are connecting the Adapter to a modem
or ISDN terminal adapter, use the default setting
of Hardware (RTS/CTS) flow control.
Software flow control (XON/XOFF) is used only for
connecting the Adapter to a non-modem serial device
(for example, using a null-modem cable to connect to
another Com Port).
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