Printronix Auto ID T800 Series Administrator's Manual page 113

Host IO > Serial Port > AutoSW Timeout
This is the timeout value used for the current port to then check the other
selected port types for data to print. When the printer has not received data
from the host after a certain period of time, it needs to time out in order to
service the other ports. This submenu is only available when Host IO >
Control > Interface is set to Auto Switching.
Minimum 10 second
Maximum 60 seconds
Factory Default 10 seconds
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