5-17
Configuration
5.7. RS232 Port Configuration
When responding to prompts, invoking commands, and selecting items from port
configuration menus, note the following:
• Configuration menus are only available to accounts and ports that permit
Supervisor commands.
• If you are configuring the RSM via modem, modem parameters will not be changed
until after you exit command mode and disconnect from
the RSM.
5.7.1. RS232 Port Modes
The RSM offers four different RS232 port operation modes:
• Any-to-Any Mode: Allows communication between connected ports and permits
access to command mode. Any-to-Any Mode Ports can be connected to other Any-
to-Any, Passive, Buffer or Modem Mode Ports by invoking the /C command. The
Any-to-Any Mode is available to all ports and is the default Port Mode for Ports 1
and 2.
• Passive Mode: Allows communication between connected ports, but does not
allow access to command mode. Passive Mode Ports can be connected by
accessing command mode from a free Any-to-Any or Modem Mode port and
invoking the /C command. Passive Mode is not available at Ports 1 and 2 or the
Network Port, and is the default mode at Ports 3 and above.
• Buffer Mode: Allows storage of data received from connected devices. Collected
data can be retrieved by accessing command mode from a free Any-to-Any or
Modem Mode Port, and issuing the Read Buffer (/R) Command. Furthermore,
Buffer Mode ports can also be configured to support the Syslog and SNMP Trap
features, discussed in Sections 9 and 10. The Buffer Mode is not available at Ports
1 and 2 or the Network Port.
• Modem Mode: Allows communication between connected ports, permits access
to command mode and simplifies connection to an external modem. Modem Mode
ports can perform all functions normally available in Any-to-Any Mode, but Modem
Mode also allows definition of a Hang-Up String, Reset String, and Initialization
String. The Modem Mode is not available at the Network Port and is the default
mode for the internal modem port (The Modem Port is Port 9 on RSM-8 units, Port
17 on RSM-16 and RSM-16DC units, and Port 33 on RSM-32 and RSM-32DC units.)
For more information on Port Modes, please refer to Section 7.