Black Box 32144 Manual page 145

Fig. 3-4 illustrates the available flow-
control options.
TD
DTE
RD
DTE-DCE Flow Control
Hayes, V.25 bis, Dumb, Leased-line
modes (except V.33)
NONE. This setting disables flow
control. All flow-control characters
are passed through the
communication channel.
CHAPTER 3: Options: Customizing the Modem Setup
DTE DTE
Tx link Tx link
pass-through pass-through
flow control flow control
flow control flow control
DCE DCE
Rx link Rx link
pass-through pass-through
flow control flow control
flow control flow control
Modem
Fig. 3-4. Flow-Control Options.
DCE
Rx link
pass-through
flow control
flow control
DTE
Tx link
pass-through
flow control
flow control
Modem
RTS on/off. The Request to Send
signal controls data flow from the
modem to the DTE. (RTS on/off is
also called hardware, physical or
out-band flow control.) This
selection enables flow control for
the local modem only.
RD
DTE
TD
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