External Connectors 37
E-EQ-VX6RG-J VX6 Reference Guide
Scanner Serial Connector (COM1)
The serial connector, labeled “SCANNER”, (configured as COM1) is industry-standard RS-232.
The connector includes a PC/AT standard 9–pin “D” male connector. By default, Pin 9 is
configured to supply +5 VDC at 0.4A (max) for an external bar code scanner. Pin 9 may also be
configured to provide RI. Refer to Chapter 4, “Scanner”, section titled “Serial Port Pin 9” for
more information on configuring Pin 9.
If Pin 9 is powered off, please see “Technical Specifications – Connection Cable” in the following
section for information on using a serial cable.
If COM1 is not being used for a scanner, it can also be used for screen blanking when the vehicle
is in motion. Please see “Technical Specifications – Screen Blanking Cable” in the following
section for more details.
1
5
96
Figure 2-3 Scanner Serial Connector (COM1)
Note: Power the VX6 off before attaching a cable or device to the COM1 serial port.
Pinout
Pin Signal Description
1 DCD Data Carrier Detect – Input
2 RXD Receive Data – Input
3 TXD Transmit Data – Output
4 DTR Data Terminal Ready – Output
5 GND Signal/Power Ground
6 DSR Data Set Ready – Input
7 RTS Request to Send – Output
8 CTS Clear to Send – Input
9 +5VDC
or
RI
Barcode Scanner Power – 400mA max (Default)
or
Ring Indicator – Input
Shell CGND Chassis Ground
