Microcom 438 - Manual (Page 68)

Chapter 5 Printer Commands
438 Operator’s Manual - 880052-0100 5-21
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
438 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
port will be selected if the USB cable is not plugged in and a character comes
in on the RS-232 port. The printer will continue to scan both ports until one or
the other condition is satisfied.
1
Ethernet: This command tells the printer to use the Ethernet port the next
time it powers up. The Ethernet port is generally a third party device that
provides the printer with the connectivity of an Ethernet system. Internally, the
signals go into a serial port. The Ethernet is setup and configured separated
from the printer using the third party software and/or methods. By default, the
printers are configured with an IP address of 192.168.200.3 on Port 9100 at
the factory.
3
RS232: When the active port is set to a 3, the printer will ignore other ports
being plugged into the machine and will only be active on the RS232 port.
4
USB: When the active port is set to a 4, the printer will ignore other ports
being plugged into the machine and will only be active on the USB port.
5.2.2.3 Set Serial Port Source Command (Volatile - ^D109)
This command is similar to the ^D108 command, except the ^D109 command immediately
switches between the 3 serial ports without the need to cycle power. Settings made with
^D109 command are NOT saved on power-down. The printer returns to the original port
setting on the next power-ON.
Note: The Auto Select option is not available with the ^D109 command.
X
109 Serial Port Source (volatile)
0 RS-232
1 USB
2 Ethernet
5.2.2.4
Ethernet Telnet Pass-Through Mode
The ^D171 command is used to open a Telnet session with the Ethernet (Xport Device) port
to gain access to its configuration settings. The Ethernet port is set to an IP Address of
192.168.200.3 and Net Mask of 255.255.255.0 on port 9100 by default at the factory. If this
address in not reachable on your network, you will need to change the IP address to one
that matches your network. One way would be to use the Device Installer software from
Lantronix (Refer to Chapter 3) to setup the port or you may use the Telnet Pass through