Global 400 User Manual
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v1.1 revision 1
Chapter 4: Serial communications
2 February 2016
Introduction
The Global 400 has a DSUB-9 serial port that provides bar code reading and serial printing
functionality. As the same connector is used for both functions, you will need a special Y-style
cable if you want to attach both a barcode reader and a serial printer to the Global 400 at the
same time.
Pin
Usage
2
Receive
3
Transmit
5
Ground
Barcode
The bar code functionality of the Global 400 was developed and tested against the Symbol
LS2208 bar code reader, which uses CODE39 bar codes. This format starts and ends all bar
codes with an asterisk “*”.
The Global 400 further specifies a format of data within the bar code. The data is grouped into
sections, separated by a percent symbol “%”. If the bar code data does not start and end with a
percent symbol, it will be treated as a VIN number. The general structure for a command bar
code is:
*%<command>%<data>%*
A VIN bar code is:
*<VIN number>*
The remainder of this chapter lists the bar code commands provided by the unit. Section
headings are the command number followed by the command name.
1. Cell ID
This command sets the Cell ID number reported by the unit in ACOP result messages.
Data: number of up to 4 digits (0-9999)
Example:
*%01%4305%*
This bar code would set the Cell ID of the unit to 4305.
2. Channel ID
This command sets the Channel ID number reported by the unit in ACOP result messages.
Data: number of up to 2 digits (0-99)
Example:
*%02%19%*
This bar code would set the Channel ID of the unit to 19.
