Paradyne 7123 User Manual page 58

3. Configuration
Configuring the COM Port to Support an External Modem
Select External Modem (Com Port) to display or change the configuration options
that control call processing for an external device attached to the COM port (see
Table 3-11, External Modem (COM Port)
Table 3-11. External Modem (COM Port) Options
3-36
Main Menu Configuration
External Modem (Com Port)
NOTE:
A standard EIA-232 crossover cable is required when connecting an external
modem to the DSU/CSU's COM port. See
Cable in Appendix C, Connectors, Cables, and Pin Assignments , for cable pin
assignments.
External Modem Commands
Possible Settings: Disable, AT
Default Setting: Disable
Specifies the type of commands to be sent over the COM port.
Disable – Commands will not be sent over the COM port.
AT – Standard Attention (AT) Commands are sent over the COM port to control the
external device. All AT command strings will end with a carriage return (hex 0x0D) and a
line feed (hex 0x0A).
CAUTION: Do not use this setting if you have an asynchronous terminal connected to
the COM port.
Dial-In Access
Possible Settings: Enable, Disable
Default Setting: Enable
Controls whether external devices can dial-in to the DSU/CSU through the COM port
(based on the Port Use option setting).
Display Conditions – This option does not appear if External Modem Commands is
disabled.
Enable – Answers incoming calls and establishes connection to the remote terminal or IP
network.
Disable – Does not answer incoming calls.
September 2001
Options).
Management and Communication
Standard EIA-232-D Crossover
7123-A2-GB20-00