Administrator's Guide

Screen reference
555-233-506732 Issue 5 October 2002
This option is intended to be used by a DTE device operating locally at a higher
baud rate than that of its far-end connection but transmitting relatively low
amounts of data (for example, a user typing at a terminal). Also, this option may
be selected whether Keyboard Dialing is selected.
NOTE:
The Low speed setting is not reported as an available speed when the Permit
Mismatch field is
y.
DLC Option Settings
The following provides additional information on the option settings for DLCs
when used with the following types of devices:
■ Printers
■ Non-intelligent terminals
■ Data terminals and personal computers
■ Host computers
■ Information Systems Network (ISN)
Printers
A DLC port with a companion ADU, when attached to a printer, usually
terminates a data call. Therefore, in this connection, the printer is the endpoint
device. The originating device may be attached to a DCP mode 2 data module
(such as the MPDM) or the DLC. A Z3A ADU extends the range of the EIA 232C
connection.
When a receive-only printer (or any printer that does not generate the Transmit
Data and DTR leads) is used, the ADU must be powered from a small
plug-mounted transformer (2012D, or equivalent) connected to pins 7 and 8 of the
modular jack. (See ADU User Manual for details.)
An ADU cannot be used if the printer has hardware flow control using the Clear
To Send (CTS) lead. An ADU can be used, however, if the printer is using
software flow control.
A printer connected to a DLC is usually assigned as a line. Table 10 lists the
option settings for printer connections.