ATL Telecom Telex - Manual (Page 10)

Host Connection
The following are the connections available on the Host Port; the unit
is configured as a DCE. The cable from the Host computer should
terminate in a 25-pin Male D-type connector.
Pin Host
1 Earth
2 Tx (to the unit)
3 Rx (from the unit)
4 RTS (to the unit)
5 CTS (from the unit)
6 DSR (from the unit)
7 0V (common)
20 DTR (to the unit)
AUX Connection
The following are the connections available on the AUX Port. The
cable from the printer should terminate in a 9-pin Female D-type
connector.
Pin AUX
1 Earth
2 Rx (from unit to printer)
3 TX (not used in printer mode)
4 DTR (to the unit)
5 0V (common)
6 DSR (from the unit)
7 RTS (to the unit)
4. CONFIGURATION
Configuring the ATL Telex Unit
The ATL Telex Unit is configured by changing the various options in the
unit's software configuration menu accessed from a terminal session
through the Host port. This section contains a complete list of all
current options for both Host and Printer configuration.
If an RS232 terminal or computer, using asynchronous
communication, is connected to the Host connector, only Tx, Rx,
Ground and DTR connections are required by the Telex Unit for
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