Black Box 32144, Manual

Page: 112 / 195

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MODEM 32144
V.22, 1200 bps; F5—V.22bis,
2400 bps; F6—V.32 (highest
common speed). Except for
multi-mode operation, the
mode and speed are limited to
the mode and speed specified.
Multi-mode operation allows
the modem to automatically fall
back to the most efficient mode
that can be used by both
modems. Available Fallback Modes
The preferred mode is V.32/
V.32bis (4800 bps or higher,
asynchronous/synchronous, full
duplex); however, if the other
modem does not support V.32 or
V.32 bis, the modem will fall back
to one of the modes listed below.
The fallback modes are listed in the
order in which they are attempted
by the modem in normal
operation:
Table 4-2. V.22 bis/Bell 212A/Bell 103 Fallback (Default)
Mode Description
V.22 bis 2400 bps asynchronous/synchronous
Bell 212A 1200 bps asynchronous/synchronous
Bell 103 0-300 bps asynchronous
All modes are full duplex.
If V.22 bis/V.22/V.21/V.23
fallback operation is enabled, the
following fallback modes are
available. As in the previous list, the
modes are listed in the order in
which they are attempted by the
modem.