Filter
Top Products
Communication Interfaces 10-21
This busy-handling protocol should not be selected for an
emulator that requires that ETX be used as a graphics character
or as part of a printer command.
Direct-Connect Busy-Handling Protocols
The control panel menu structure offers the following choices of
busy-handling protocols for use with a serial interface connected
directly to the host.
q PIN 20 H:READY (pin 20 high on ready) — When you select
this parameter, the printer activates DTR (interface pin 20) to
indicate that it is ready to receive data and deactivates DTR to
indicate a busy condition. This busy-handling protocol is also
known as the busy-on-DTR protocol.
q PIN 20 H:ALWAYS (pin 20 high always) — This parameter
disables the busy-on-DTR protocol.
q PIN 11 H:READY (pin 11 high on ready) — When you select
this parameter, the printer activates B/R (interface pin 11) to
indicate that it is ready to receive data and deactivates B/R to
indicate a busy condition.
q PIN 11 H:BUSY (pin 11 high on busy) — When you select this
parameter, the printer activates B/R to indicate a busy condition
and deactivates B/R to indicate that it is ready to receive data.
Optional Communication Interfaces
A printed wiring board connector on the printer mother board
provides for the installation of optional communication interfaces.
These include the RS-422 serial communication interface and the
current loop (TTY) communication interface.