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DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
555-230-112
Issue 5
May 1998
Option Switch Settings
Page B-2External Modem Option Settings
B
External Modem Option Settings
The COMSPHERE 3700, 3800, and 3900 series (recommended) external
modems may require option switch settings. Refer to the documentation that
accompanies each modem to set the options.
NOTE:
A locally obtained, type-approved external modem may be used. Contact
your Lucent Technologies representative for more information.
The Release 6 systems operate with the COMSPHERE modems set to the factory
default settings. The modem settings and descriptions are listed in Tab le B -1
.
Table B-1. Modem Fields
Modem
Connection Description
Modem Name This field is 20 characters long and permits alphanumeric characters to
provide a unique qualifier for a given modem (such as INTEL).
RTS/CTS
Enabled
Informs the modem that communication with the data source UART is
driven with RTS/CTS flow control. The field name has a default of \Q3 in a
field 6 characters long. This field is not case sensitive. Default is upper
case.
Asynchronous
Data Mode
Configures modem as an asynchronous communications device. The
field name has a default value of &M0&Q0 in a field 8 characters long.
This field is not case sensitive. Default is upper case.
DTE
Auto-Data
Speed
Adjusts the speed of the data source (DTE) UART to the outgoing
(modem-to-modem) data rate. At maximum, this speed is 9600 baud. It is
not desirable to have the serial data fill the modem buffer faster than the
outgoing data rate, since data compression is disabled. The field name
has a blank default value in a field of 6 characters. The Lucent products
use the command S90=1 to enable this functionality while the Intel
product uses the command \J1 to enable similar functionality. This field is
not case sensitive. Default is upper case.
Disable Data
Compression
Turns off the default data compression algorithms in use by most
modems. The field has a blank field of 6 characters as default. The AT
commands that control this are supported by similar commands;
however, these commands do not operate in the same manner. The Intel
modems require “H0%C0” to disable V.42bis & MNP Class 5 data
compression algorithms. The Paradyne products only use %C0 to disable
both algorithms. This field is not case sensitive. Default is upper case.
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