Seiko SMARTCS NS-2250 Instruction Manual page 37

The port selection menu shows the information in the following table.
Output
information
Tty Serial ports numbers to which connections are possible.
Label Label information configured to each port.
Current Normal mode connection information.
Numbers
RW Full
N/A
Current Monitoring mode connection information is displayed.
RO
Content is the same as RW. See above.
Display content
: The number of port users currently connected.
: The number of sessions has reached the maximum.
Connections are not possible.
: Connections are not permitted to this port.
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