7-8
Operation
To clear data from any port buffer (with or without reading it first), access command
mode via the text interface, using an account and port that permit Supervisor
commands, then issue the /E (Erase Buffer) command using the following format:
/E xx [Enter]
Where xx is the number of the port buffer to be cleared.
Note: The /E command cannot erase data from a port buffer that is currently
being read by another port.
7.3.2. Port Buffers
The Status Screen lists the amount of Buffer Memory currently used by each port. The
RSM uses buffer memory in two different ways, depending on the user-selected port
mode.
• Any-to-Any, Passive, and Modem Mode Ports: When two ports are
communicating at dissimilar baud rates, the buffer memory prevents data overflow
at the slower port.
• Buffer Mode Ports: Stores data received from connected devices. The user
issues a Read Buffer command (/R) from an Any-to-Any or Modem Mode port to
retrieve data.
If the Status Screen indicates an accumulation of data, the /E (Erase Buffer) command
can be invoked to clear the buffer.
Note: When a Buffer Mode port is reconfigured as an Any-to-Any, Passive,
or Modem Mode port, any data stored in the buffer prior to changing the port
mode will be lost.