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Bluetooth™ & WiFi Setup Command
Datamax-O’Neil printers can be placed in pass-thru mode. In pass-thru mode, data communication will only occur between the
two selected UARTS. This mode of operation is used to setup the Bluetooth™ or 802.11b/g interface parameters. While in this
mode, printing is disabled.
Select Pass-Thru Command Mode ESC P U n1 U n2 T t0 t1 t2 (CR)
This command sets the printer in pass-thru mode. In most serial applications the command can be sent manually or as a file. For
UART selection only use ECU application.
Parameter Description
n1 Source UART, values 0 – 4
UART0 = Serial Interface
UART1 = Wireless Interface (BT, WiFi)
UART2 = Wireless Interface (BT, WiFi)
UART3 = IrDA Interface
UART4 = USB Interface
n2 Destination UART, values 0 – 4
UART0 = Serial Interface
UART1 = Wireless Interface (BT, WiFi)
UART2 = Wireless Interface (BT, WiFi)
UART3 = IrDA Interface
UART4 = USB Interface
t0 Pass-thru timeout, value 0 – 9
t1 Pass-thru timeout, value 0 – 9
t2 Pass-thru timeout, value 0 – 9
Note: Pass-thru timeout value 000 is not a valid entry
Example 1: The Pass-thru sequence below is used to put Apex2 printer is Pass-thru mode from serial to Wireless with timeout
value set to 999 seconds.
Escape Sequence: ESC P U 0 U 2 T 9 9 9 CR
Hexadecimal: 1B 50 55 00 55 32 54 09 09 09 0D
Decimal: 27 80 85 0 85 50 84 9 9 9 13
Example 2: The Pass-thru sequence below is used to put Apex3 printer is Pass-thru mode from serial to Wireless with timeout
value set to 999 seconds.
Escape Sequence: ESC P U 0 U 1 T 9 9 9 CR
Hexadecimal: 1B 50 5 00 55 31 54 09 09 09 0D
Decimal: 27 80 85 0 85 49 84 9 9 9 13
Example 3: The Pass-thru sequence below is used to put Apex4 printer is Pass-thru mode from USB to Wireless with timeout
value set to 999 seconds.
Escape Sequence: ESC U 4 U 2 T 9 9 9 CR
Hexadecimal: 1B 50 55 55 32 54 09 09 09 0D
Decimal: 27 80 85 85 50 84 9 9 9 13
Note: Pass-thru command is not available when Source (n1) = Destination (n2)
The Pass-thru mode terminates under three conditions:
After pressing the FEED button
After TIMEOUT duration specified in the pass-thru command has EXPIRED
After receiving three consecutive “#” characters.