Serial Comm Registry Key
The JNIOR (Models 410, 412 and 414) support two serial ports, the COM
Port and the AUX
Serial port. Both ports may be used by application programs
to communicate with and control other devices. By default the COM port
provides Diagnostic output information which generally reports status
during the boot process. Once the product is up and running the COM port
may be used to access to the JANOS Command Line Console. This can be disabled
using the MODE
command to insure dedicated communications with external
The default communications parameters are 115.2K baud, 8 data bits, 1 stop
bit with no parity or handshake. The COM port supports only 3-wire
communications. This port does not include hardware handshake lines. The
AUX port provides for RTS and CTS handshake signals which may be optionally
enabled. In addition the AUX port on the Model 410 may be configured for
RS-422 or RS-485 communications. In the latter case the output driver may
be software controlled supporting multi-drop serial networks.
Access to the Command Line Console may be enabled for the AUX Serial port
on a session by session basis using the MODE command.
The AUX Serial port is also supported by the IOLOG
command. A bi-directional
transmission log is maintained showing recent communications. This data can
be displayed or saved to an auxio.log file for further analysis. It is a
very useful diagnostic tool.
The Model 412DMX eliminates the AUX Serial port. It is replaced by a dedicated
DMX512 Universe 5-pin output.
HELP Topics: MODELS