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Printer Commands
Chapter 5
5-26
428LT Operator’s Manual - 880040-0200
5.2.2
Communication Port Configuration
These commands are used to configure the communication speed or Baud rate of the
printer and to configure which port is the active port. A number of printer’s are configured
with more than one port, however only one is active at any given time.
5.2.2.1
Baud Rate
This non-volatile command changes the serial port communication speed.
Note: Unless otherwise noted, the factory default baud setting is 115,200. The baud
rate will be temporarily set to 115,200 when the printer is in the Diagnostic Mode if
the user setting is different. The user set baud rate will resume after a “soft reset”
(^D32) or cycling the power to the printer.
^A
^D
COMMAND
X
20
Set Bits Per Second:
This command sets the serial/USB port communication speed or BAUD rate of
the printer. Settings of 12 (230400) and higher are not intended to be used by
normal serial operations. These settings are only intended to be used by the
D149 USB image print mode.
0
110 bps
1
150 bps
2
300 bps
3
600 bps
4
1200 bps
5
2400 bps
6
4800 bps
7
9600 bps
8
19200 bps
9
38400 bps
10
57600 bps
11
115200 bps
12
230400 bps (only used for D149 Image Mode)
13
460800 bps (only used for D149 Image Mode)
14
921600 bps (only used for D149 Image Mode)
5.2.2.2
Set Serial Port Source Command (Non-volatile- ^D108)
This command sets which serial port will be used the next time the printer is turned ON. The
224/424 printer has three serial data ports on the rear panel: RS-232, USB, or Ethernet.
Only 1 port can be active at any given time. The D108 command sets how the printer
selects the active serial port the next time the printer is powered ON. Settings made with
D108 are saved in the printer’s system parameters and are used to select the serial port on
power-up.
^A
^D
Command
X
108
Serial Port Source (Non-volatile)
0
AutoSelect:
When the printer powers up, it scans the USB and RS-232 ports
and selects the “Active” port. The USB port will be selected if the USB cable is
connected between the printer and a PC that is powered “ON.” The RS-232
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