RSM Series; Remote Site Managers - User’s Guide
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
/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.