Endcaps and COM Ports 23
E-EQ-MX3CEOGWW-A-ARC MX3-CE Installation and Operator’s Guide
Endcaps and COM Ports
The MX3-CE supports three COM port options. Two external serial ports are dependent on the
end cap chosen. A third serial port is used to support an infrared transciever (barcode reader). An
additional endcap configuration supports serial and USB "slave" input/output at 1.5 Mbps.
Scanner Port
RS-232 Port (Serial Port)
and/or USB Port
DC Power Jack
Audio Jack
Figure 21 Endcap Connectors
The COM 2 port is always the IR port on the back of the MX3-CE, regardless of the type of
endcap installed.
On the Standard Range Scanner / Serial Port endcap COM 3 is the Integrated Scanner port. The
integrated barcode scanner scans only when the MX3-CE Scan button is pressed. To edit Scanner
Com Port parameters, select Start / Settings / Control Panel / Scanner. Change the parameter
values and tap OK to save the changes.
On the Dual Serial Port endcap the COM1 port is the serial port on the right side of the endcap
when the display is facing you.
Tethered Scanners
The MX3-CE Scan buttons have no effect on tethered barcode scanners (connected to a serial
port). Tethered scanners read barcode scans only when the trigger on the tethered scanner is
pressed.
To set the MX3-CE to use a tethered scanner, select Start / Settings / Control Panel / Scanner.
Upon selecting "External Scanner", +5V power is automatically assigned to the port.
USB Port
The USB port requires a DB9 to USB cable (available from LXE).
The serial port/USB port also supports serial data transfer (using a null modem cable) and non-host
USB I/O at 1.5 Mbps. The MX3-CE automatically detects the cable configuration. Refer to section
titled "Accessories" later in this manual for part numbers for the DB9-USB cable and the null
modem cable.
