4. Configuration Options
9700-A2-GB20-20 December 2002 4-63
Configuring the COM Port to Support an External Modem
Select External Modem (Com Port) to display or change the configuration option s
that control COM port external device call processing (see Table 4-26, External
Modem (COM Port) Options).
Main Menu Configuration Management and Communication

External Modem (Com Port)

NOTE:
A standard EIA-232 crossover cable is required when connecting an external
modem to the FrameSaver unit’s COM port. See

DB25-to-DB25 Crossover

Cable

or

DB9-to-DB25 Crossover Cable

in Appendix E,

Connectors, Cables,

and Pin Assignments

, for cable pin assignments.
Table 4-26. External Modem (COM Port) Options
ExternalModem Commands
Possible Settings: Disable, AT
Default Setting: Disable
Specifies the type of commands to be sent over the COM port.
CAUTION: Do
not
use this setting when an async terminal is connected to the COM
port (see Table4-25, Communication Port Options).
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).
Dial-InAccess
Possible Settings: Enable, Disable
Default Setting: Enable
Controls whether external devices can dial-in to the FrameSaver unit through the COM
port (based on the Port Use option set ting).
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
IPnetwork.
Disable – Does not answer incoming calls.