Introduction
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Asynchronous dial DTE data rates from 300 to 115200 bps.
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Modem configuration changes using the DTE interface or
throught the
Management Controller Module.
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Compatibility with the industry standard AT command set.
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Storage of up to 20 telephone numbers in directory locations.
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Dialling using AT commands, CCITT V.25bis commands or by raising
DTR on the Host to modem interface, or by data being sent to the DTE
interface.
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High-speed transmission using asynchronous or synchronous, or UNIX
devices over full duplex dial networks, and 2-wire or 4-wire lines.
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Self testing facilities providing local and remote loopbacks, including
CCITT-compatible V.54.
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Five factory-set configurations and two use
r
definable configurations.
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Front panel LEDs to inform you of the current status of any of the three
modems.
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Easy to install, configure and support.
Support of the V.32terbo transmission protocol is included as a feature in
the modems. V.32terbo is a non-proprietary extension of the widely used
CCITT V.32bis standard which increases the maximum data signalling rate
from 14400 to 19200 bps over dial-up links or private lines.
Compatibility between V.32terbo and V.32bis is maintained in a similar
manner as it is between V.32bis and V.32, in that an identical training
sequence is used by each standard and that V.32terbo uses a subset of
the speeds available in V.32bis.
By default, each modem’s factory configurations enable V.32terbo to be
negotiated as the optimum data rate on any given link allowing a 33%
increase in line throughput, to 19200bps to be used wherever possible.
Where the quality of the line is not good enough to enable
transmission at 19200bps, an intermediate speed of 16800 bps can be