M-Class 149
GPIO Port Description
The printer can easily be programmed to interface with most applicator devices. The GPIO functions can be enabled and
configured via the menu system of the printer (for non-display printers, see Section 4; or for display-equipped printers, see
Section 5). Configured parameters are stored in non-volatile memory and saved for subsequent power-ups.
Printing with GPIO: When the GPIO functions are enabled, the printer will not print a label until the “Start of Print”
signal goes active.
Note: When a label is ready to print but awaiting a Start of Print signal, the prompting operation differs slightly depending upon
equipment:
Non-Display Models – The STOP LED will flash.
Display-Equipped Models – The display will indicate “WAITING FOR SIGNAL.”
GPIO Port Configuration
The connection to the GPIO signals can be accessed via the Option Port connector (an 8-pin Molex Microfit 3, P/N
44300-800) on the front of the printer, or via the J6 connector (an AMP, P/N 640456-8) on the Main PCB. The pin-outs
for the respective connectors (as viewed when facing the printer) are as follows:
Option Port Connector Main PCB – Connector J6
8 6 4 2
7 5 3 1
1 2 3 4 5 6 7 8
Each GPIO pin function is detailed in the table below:
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