9.3.4. Modem Mode
The Modem Mode provides features specifically related to modem communication. A
Modem Mode Port can perform all functions normally available in Any-to-Any Mode.
The Modem Mode is available to all RSM-8R4 ports except the Network Port, and is the
default port mode at the Internal Modem port.
When Modem Mode is selected, the Port Configuration menu will display three
additional prompts, which allow you to re-define the modem reset string, initialization
string, and hang-up string.
When a call is received, the unit will prompt the caller to enter a username and
password. The RSM-8R4 allows three attempts to enter a valid username and
password. If a valid username and password is not entered within three attempts, or
if the user does not respond to the login prompt within 30 seconds, the modem will
• When a Modem Mode port exits command mode, or the DCD line is lost
while command mode is active, the RSM-8R4 will pulse DTR to the modem.
The unit will then send the user-defined modem command strings to make
certain the modem is properly disconnected and reinitialized.
• The Internal Modem Port (Port 9) is always configured for Modem Mode; the
port mode for the Internal Modem Port cannot be changed.
• When an external modem is installed at an RSM-8R4 port, other ports can use
the modem for calling out. To call out, invoke the /C command to connect to
the port, then access the modem as you normally would.
• If desired, the Invalid Access Lockout feature can provide additional security
for Modem Mode ports. When properly configured, the Invalid Access
Lockout will automatically shut down a port whenever that port exceeds
the user defined number of invalid access attempts. For more information,
please refer to Section 5.3.2.