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Configuration Options
4-57
9820-A2-GB20-20 June 2000
Configuring the COM Port to Support an External Modem
(Models 9820, 9820-2M, 9820-8M)
For all models except Model 9820-45M, 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 4-18).
Main Menu
→
Configuration
→
Management and Communication
→
External Modem (Com Port)
NOTE:
A standard EIA-232-D crossover cable is required when connecting an
external modem to the FrameSaver unit’s COM Port. See
Standard
EIA-232-D Crossover Cable
in Appendix C,
Connectors, Cables, and Pin
Assignments, for cable pin assignments.
Table 4-18. External Modem (COM Port) Options (1 of 2)
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 FrameSaver unit 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.